Job Description

As our Senior Go Developer, you will make key contributions to the creation of a product on track to improve medical care for millions of people. You will be a valuable member of our Backend chapter with the chance to maintain an ever-expanding cloud-based product, the freedom to work on a wide range of topics, and the opportunity to make architectural (design) decisions.

WHO WE ARE

AMBOSS is a medical education company that has fundamentally changed the way physicians acquire their know-how. Our comprehensive study and reference tool combines cutting-edge technology with the latest medical research.

Founded in 2012 by doctors for doctors, the company’s international team consists of more than 40 different nationalities, with the most diverse backgrounds. AMBOSS is headquartered in Berlin with offices in Cologne and New York, currently serving over 500,000 users in more than 180 countries.

WHAT YOU WILL DO

• Working in an agile team on one of our main products – the online pharma information base for physicians.
• Assist in the migration to microservices with Go
• Further expansion and maintenance of our API based on GraphQL
• Refining implementation in rounds of code review, quality assurance, and PO acceptance.
• Covering your code with unit/functional/end-to-end tests.
• Architecture and API design decisions working in a cross-functional team.
• Monitor during operation (using tools such as Kibana, Cloudwatch, DataDog) for analysis and optimization.
• Collaboration with our support team in escalation cases (troubleshooting or usability optimization).

WHAT YOU WILL BRING

• An expert understanding of Go with proficiency in Python or PHP to develop applications and microservices.
• Deep understanding of building maintainable & scalable code.
• Ability to hold your ground in architectural discussions that are focused on implementing best practices.
• Great knowledge in relational and non-relational databases or document stores
• Routine in working with development tools like Git, GitHub, Jenkins, Jira, Docker, Kubernetes, etc.
• Mastery over the English language, you can freely discuss your ideas in an agile work environment.
• Cross-functional project management experience where you guided engineers, developers, designers & scientists, is a real plus!

THE AMBOSS PRESCRIPTION

• Set your own biological clock: Make use of our flextime and home office options.
• Keep the hemoglobin flowing: Enjoy our fitness and wellness program with a sponsored gym membership.
• Need more serotonin? Get involved in our monthly team events, game nights, and weekly language lunches.
• Keep those synapses firing: Profit from ongoing learning opportunities with our educational seminars, “crosstalks”, and development programs.
• No risk of high cholesterol here! Dig into freshly cooked lunches, healthy snacks, and wash it all down with the help of an amazing Italian espresso machine.
• Your doctor recommends time off your feet? Our mobility perks have you covered with a yearly public transportation card.
• Want a little extra exercise? Then choose the sponsored bike instead of the public transportation card.
• Reduce that childcare-associated cortisol build-up: Bring your child along to our AMBOSS Daycare when your Kita is closed, or use it to bridge the gap until you find a Kita spot.

We believe that it is not possible to put every type of diversity into words. We always have and always will live with the intention that every person, from every background and demographic, is welcome. Whoever you are, and wherever you come from, we believe you have something to add to our mission.

Does this sound like the place you have been looking for? Get in touch! We are looking forward to receiving your application.

Apply 🔗 Link

Job Description

Today, some Python using TDD. Tomorrow, clean code in Go and Elixir. Next week, maybe pair programming in Node.js? Feeling like writing a custom Nginx module in plain C? We have that too!

Sounds too cool to be true? Well, that’s exactly how we roll here in the Tech Team at caseable!

Don’t let yourself be fooled by a quick visit to the (fancy!) caseable.com website. What seems to be yet-another-boring-ecommerce-startup, is actually much more behind the scenes. We are a tech platform that allows other businesses from different sizes to achieve great customer experience, by horizontally increasing the range of products available with smart cross-selling solutions. You would have never guessed it, right?

Not to mention that we do quite a lot of image processing and provide solutions to our production facility (yes, we have a factory and manufacture physical products too!), with systems that will generate PDFs, control printers, organize logistics and much more.

This is a great opportunity to join a passionate team and make substantial impact on our business growth. You will experience supportive team members and the freedom to use your technical expertise and initiative to achieve shared goals. This position requires authentic curiosity and will to learn every day. We focus on quality and maintainability of what we do, in order to maximize the company goals in the long term, while executing urgent tasks with surgical precision when needed. We expect strong organizational skills, critical thinking and enthusiasm for achieving company and self-oriented goals.

What we offer

We offer you the opportunity to be part of an international team who is not afraid of learning on a everyday basis. You will have the possibility to experiment with new technologies and the freedom to choose your own equipment (high-end Linux or Mac laptops, with UHD external monitors) and software (your favorite IDE or simply Vim if you want).

Our environment is very supportive, where proposals for change and suggestions for improvements are encouraged. In addition, we offer flexible working hours and home office possibilities, an informal working environment with flat hierarchy, and competitive salaries. You will also enjoy our BBQ’s and events together with the caseable team.

As learning is a fundamental part of our style, you can expect to be going to congresses, conferences and meetups, doing workshops and reading books and other technical material in a regular basis.

Skills & Requirements

Your most important skill…

…is that you are open minded and eager to learn new technologies. You receive and give honest feedback and criticism, never taking it to the personal level, but as a fundamental part of achieving excellency.

We run on a microservices architecture, with containerized services in a very polyglot environment. We expect that you find this incredible, very exciting and maybe a bit scary, but in a good way. Python, Node.js, Elixir, Go, C and PHP are currently used, but we already have plans to introduce others, like Rust, Erlang, Lua and literally anything else that we believe will be a great tool for the task given.

Responsibilities

• Code according to industry and team standards, adhering to good practices
• Write maintainable, readable code with extensive test coverage, ideally applying TDD
• Work with source control, dev/stage/prod release cycle and continuous integration
• Get actively involved in the code and functional reviews of fellow developer’s work
• Be able to spot logic and functional issues and effectively communicate feedback
• Actively engage with team members to discuss backlog items, design issues, and best coding practices
• Create technical documentation
• Optimize application for maximum performance, scalability and maintainability
• Working and developing RESTful APIs
• Be in direct contact with infrastructure topics and understand the systems architecture
• Work especially well with green field projects and sometimes with some legacy systems (luckily we already managed to kill most of these).

Skills & Experience

Mandatory:

• Backend development, independent of the programming language, but including at least two of the following:

• Python

• Elixir

• Go

• Node.js

• PHP

• Erlang

• C

• Ruby

• Passion for tested software: unit testing, automated tests, TDD

• You can’t imagine how to code without Git

• Linux, Bash & command line feels like home to you

• Database knowledge (SQL and NoSQL)

• Good knowledge of HTTP and RESTful APIs

• Adherence to good practices and standards

• Focus on quality, maintainability, readability, scalability and performance

• Likes to work in an international, multicultural team

• Enjoys pair programming, code reviews and knowledge sharing

• Good English skills (written and verbal)

Good to have:

• AWS
• Continuous Integration
• Ansible
• Terraform
• Microservices architecture
• Docker
• Monitoring tools (NewRelic, Kibana, Graylog, PagerDuty, etc)
• Scrum, Kaban
• Jira, Confluence

Apply 🔗 Link

Job Description

You will be a member of the Logistics Squad a small, cross-functional and co-located product team building applications and services that help millions of small businesses thrive. The Logistics Squad is highly autonomous and we empower every member to have a significant impact on feature design, prioritization and delivery. As a highly-motivated and curious engineer, you will be able to help shape the future of the team as well as the future of SumUp’s engineering organization.

The team’s mission is to create a seamless and transparent delivery and return process for all of the SumUp’s merchants and internal stakeholders and to establish and maintain trusting relationships with them.

As a Go Developer you will be working on evolving the team’s microservices architecture by taking end-to-end ownership over what you build: from concept to creation, testing, documentation, deployment, operations, monitoring, maintenance. Our infrastructure is built on Kubernetes and Docker. You’ll participate in designing and planning feature implementation, as well as actively advocating for removing tech debt, fixing bugs, refactoring and making iterative improvements.

YOU’LL BE GREAT FOR THIS POSITION IF

• You want to be part of shaping the product and having a direct impact on the business.
• You have a strong philosophy on testing and use this mindset to write robust, maintainable, clean code.
• You enjoy sharing your knowledge with others, whether it’s through mentorship, pair programming, or whiteboard design sessions.

YOUR PROFILE

• Don’t be concerned if you do not meet 100% of the requirements. We are looking for the best overall team member.
• Solid understanding of design principles and creating clear and predictable REST APIs
• Experience with relational databases, preferably Postgres
• Experience or interest in DevOps topics, such as working with AWS, Docker, Kubernetes, and/or Jenkins
• Mindset towards scalability and resilience without overengineering based on current challenges
• Open to learning different tools, frameworks and languages to get the job done
• 3+ years of backend experience with Go

WHY YOU SHOULD JOIN SUMUP

• A dedicated annual budget for attending conferences and advancing your career through further education. We encourage you to speak at conferences and give talks.
• Weekly Lunch and Learn session, where the local engineering team exchanges ideas over company-sponsored lunch.
• Dedicated time every other week for side-projects and open source initiatives.
• Annual hackathons, where the engineering teams from Berlin, Cologne, Sofia, and São Paulo gather together.
• We have a close, welcoming and international community. We get together regularly for brunches, cocktail nights, football, office events, AMA sessions, training, German classes, and yoga classes.
• Numerous other benefits such as Urban Sports Club subsidy, Corporate Pension Scheme, Kita placement assistance, relocation assistance, 2x per week subsidized office lunches, and a gorgeous place to work in the heart of Berlin at Alexanderplatz.

ABOUT SUMUP

We believe in the everyday hero. Those who have the courage to follow their passion and who have the strength and determination to realise their dreams.Small business owners are at the heart of all we do, so we’re creating powerful, easy-to-use financial solutions to help them run their businesses. With a founder’s mentality and a ‘team-first’ attitude, our diverse teams across Europe, South America and the United States work together to ensure that small business owners can be successful doing what they love We believe in the everyday hero. Those who have the courage to follow their passion and who have the strength and determination to realise their dreams.Small business owners are at the heart of all we do, so we’re creating powerful, easy-to-use financial solutions to help them run their businesses. With a founder’s mentality and a ‘team-first’ attitude, our diverse teams across Europe, South America and the United States work together to ensure that small business owners can be successful doing what they love

Perks & Benefits

WHY YOU SHOULD JOIN SUMUP

• A dedicated annual budget for attending conferences and advancing your career through further education. We encourage you to speak at conferences and give talks.
• Weekly Lunch and Learn session, where the local engineering team exchanges ideas over company-sponsored lunch.
• Dedicated time every other week for side-projects and open source initiatives.
• Annual hackathons, where the engineering teams from Berlin, Cologne, Sofia, and São Paulo gather together.
• We have a close, welcoming and international community. We get together regularly for brunches, cocktail nights, football, office events, AMA sessions, training, German classes, and yoga classes.
• Numerous other benefits such as Urban Sports Club subsidy, Corporate Pension Scheme, Kita placement assistance, relocation assistance, 2x per week subsidized office lunches, and a gorgeous place to work in the heart of Berlin at Alexanderplatz.

Apply 🔗 Link

Job Description

You will be a member of the Logistics Squad a small, cross-functional and co-located product team building applications and services that help millions of small businesses thrive. The Logistics Squad is highly autonomous and we empower every member to have a significant impact on feature design, prioritization and delivery. As a highly-motivated and curious engineer, you will be able to help shape the future of the team as well as the future of SumUps engineering organization.

The teams mission is to create a seamless and transparent delivery and return process for all of the SumUp’s merchants and internal stakeholders and to establish and maintain trusting relationships with them.

As a Go Developer you will be working on evolving the teams microservices architecture by taking end-to-end ownership over what you build: from concept to creation, testing, documentation, deployment, operations, monitoring, maintenance. Our infrastructure is built on Kubernetes and Docker. You will participate in designing and planning feature implementation, as well as actively advocating for removing tech debt, fixing bugs, refactoring and making iterative improvements.

YOU’LL BE GREAT FOR THIS POSITION IF

• You want to be part of shaping the product and having a direct impact on the business.
• You have a strong philosophy on testing and use this mindset to write robust, maintainable, clean code.
• You enjoy sharing your knowledge with others, whether it’s through mentorship, pair programming, or whiteboard design sessions.

YOUR PROFILE

• Don’t be concerned if you do not meet 100% of the requirements. We are looking for the best overall team member.
• 3+ years of backend experience with Go
• Solid understanding of design principles and creating clear and predictable REST APIs
• Experience with relational databases, preferably Postgres
• Experience or interest in DevOps topics, such as working with AWS, Docker, Kubernetes, and/or Jenkins
• Mindset towards scalability and resilience without overengineering based on current challenges
• Open to learning different tools, frameworks and languages to get the job done
• 3+ years of backend experience with Go

WHY YOU SHOULD JOIN SUMUP

• A dedicated annual budget for attending conferences and advancing your career through further education. We encourage you to speak at conferences and give talks.
• Weekly Lunch and Learn session, where the local engineering team exchanges ideas over company-sponsored lunch.
• Dedicated time every other week for side-projects and open source initiatives.
• Annual hackathons, where the engineering teams from Berlin, Cologne, Sofia, and São Paulo gather together.
• We have a close, welcoming and international community. We get together regularly for brunches, cocktail nights, football, office events, AMA sessions, training, German classes, and yoga classes.
• Numerous other benefits such as Urban Sports Club subsidy, Corporate Pension Scheme, Kita placement assistance, relocation assistance, 2x per week subsidized office lunches, and a gorgeous place to work in the heart of Berlin at Alexanderplatz.

ABOUT SUMUP

We believe in the everyday hero. Those who have the courage to follow their passion and who have the strength and determination to realise their dreams.Small business owners are at the heart of all we do, so we’re creating powerful, easy-to-use financial solutions to help them run their businesses. With a founder’s mentality and a ‘team-first’ attitude, our diverse teams across Europe, South America and the United States work together to ensure that small business owners can be successful doing what they love.

*SumUp is an Equal Employment Opportunity employer that proudly pursues and hires a diverse workforce. SumUp does not make hiring or employment decisions on the basis of race, color, religion or religious belief, ethnic or national origin, nationality, sex, gender, gender identity, sexual orientation, disability, age or any other basis protected by applicable laws or prohibited by company policy. SumUp also strives for a healthy and safe workplace and strictly prohibits harassment of any kind.

SumUp will not accept unsolicited resumes from any source other than directly from a candidate.

Apply 🔗 Link

Job Description

We are looking for a Golang developer who helps us develop an MVP for a nice Infrastructure as Code project. The MVP consists of a command-line application and a REST API for managing AWS cloud infrastructure in Golang. The project is running only for a few weeks, so you’ll have the opportunity to contribute a cool project right from the start!

tl;dr

• Develop a Golang command-line application and a REST API
• Strong focus on internal and external software quality
• Ambitious project context in the AWS cloud (Infrastructure as Code, High Availability, a high degree of automation)
• For 10 to 16 hours per week
• We speak English and German
• AWS cloud / Infrastructure as Code / Part-time / Freelance

Project Background

We are developing the prototype of an innovative product for managing cloud infrastructure. It is all about running web applications in the AWS cloud in an easy-to-use, reliable, and automated way. Our users should be able to create and maintain the resources that they need without any external help. Behind the curtains, there is a framework that manages those resources in the AWS cloud with Terraform. This concept aligns with the Infrastructure-as-Code principle, which aims at providing documented and managed-like-source-code infrastructure definitions. We set a strong focus on economic factors, in that it should be viable to run both small and large applications and to scale those applications with high load and amount of users. The platform should be highly available and self-repairing – nobody should be on-call and responsible for fixing server deployments in the middle of the night. We have already validated a solution for creating and managing such an infrastructure, and we are in the process of bringing it to life.

The Task at Hand

The platform’s user interface is a command-line application which talks to the REST API, which we also develop. We want to implement these tools in Golang, and engineering has just started. We have a strong focus on software quality: in the end, we want to have a well-designed, robust software architecture with clear responsibilities and interfaces. The product should be automatically testable and maintainable for an extended period. An important factor will be integrating several data sources to deliver the right information to the user at the right time. The challenge lies in the heterogeneity and complexity of the data sources (for example, Terraform and AWS). It is also important to us that the product is intuitively usable: it should transform hosting infrastructure from a bothersome task to something fun. To achieve this, we want to gather user feedback and act on it iteratively.

Your Qualifications

You should have considerable experience with Golang and see yourself on an intermediate-to-senior level. In particular, you should engage with topics such as software architecture, testing on unit/integration/end-to-end level, and picking the right frameworks and libraries. You are also excited about clear software architecture and clean, well-maintainable code. We really care about this! ;) If you’ve got experience with infrastructure tools such as Terraform, Docker, Kubernetes, or cloud platforms such as AWS or Azure – that’s a plus, but we don’t expect you to know everything. And you won’t have to dive deep into all those topics (depending on your personal preferences, of course). There are more bonus points if you know how to integrate 3rd party CLI apps in a stable and reliable way.

The Scenario

You’re living in Berlin, Potsdam, or somewhere nearby, and you have one to two days per week to spare. The project is sponsored by a company for digital products in Münster (Zweitag). However, there is no need to travel there because you work together with a team member who lives in Berlin. The current project is projected to take six months. If it all works out fine, we can see you being invited to work with us for longer. 🙂

#bestthingever

Want to hear more about this project over a nice cup of coffee? Write an email to Felix at [email protected] 🚀

🔗 Link

Job Description

SOFTWARE ENGINEER WITH MAREM RESEARCH - Junior to Lead (several Positions)

Your Role

• To design, develop, deploy, evolve, and operate latency and through-put optimized system architectures. • To be an integral part of an empowered and self-organizing team • To touch base with a great variety of fields such as software engineering, data engineering and data science • To actively collaborate with other engineers, product owners, domain experts and designers to deliver great outcomes • To pair with others and review work, sharing knowledge and increasing quality across the board

Your Profile

• You have gained already professional experience as a Software Engineer • You can build and debug reliable, high availability, secure and performant distributed services in Go or alternatively have intensive experience in a compiling language • Experience with trading systems or crypto trading is a plus. • You care about quality and know when and how to ship code safely • You have a solid understanding of system design, data structures, and algorithms • You are experienced with deploying and operating services on Docker or Kubernetes • You love to experiment and use data to drive decision-making

Our Offer • A tightly knit team of experienced entrepreneurs and engineers with lots of interesting challenges to dive into • A modern technology stack: Go, Python, Cassandra, InfluxDB, Kafka, PostgreSQL, Kubernetes, Docker, Terraform, Cloudflare • Extensive individual and personal support to grow professionally • Become part of a talented multinational team in Berlin • Prime office location and leveraged bonus and compensation schemes

About Marem Research

Marem Research together with DLT Market are building the first fully regulated inter dealer broker for the crypto market allowing institutional investors to enter the market compliantly in cooperation with the most advanced and innovative European banks. It is our mission to influence and shape the future of finance and path the way for the next generation of financial technology. We seek to bridge the gap of traditional finance and the new crypto world. On top of our state of the art infrastructure we conduct proprietary trading activity exploiting the vast experience residing in our team and making use of this unique setup. We are a data driven company, quickly creating and trying out new ways to make the market more efficient.

🔗 Link

Job Description

A bit about us Advanced Blockchain AG designs, develops and deploys Distributed Ledger Technology (DLT) software solutions for companies and their services and operations. Our team is specifically set up to ride the wave of the blockchain revolution, possessing the experience, personnel and technological know-how to create a wide range of tailor-made blockchain systems to meet all kinds of needs. We’re experts in the field of Distributed Ledger Technology, we understand the ability the technology has to disrupt long-standing industries and create entirely new business models, and we’re set on channeling our knowledge and expertise into connecting the real-world with the power and potential DLT has to shape our collective future.

The Role We’re opening “ Junior Go Developer ” vacancy for an engineering role in our R&D team. You will be responsible for the Backend development of new and ongoing projects and actively participate in connecting the real world with the power and potential of Distributed Ledger Technology.

Responsibilities ● Development of our high-loaded Web applications Back-end ● Working with our Block-chain API ● Rest API development ● Micro services development with Docker containerization ● Working and maintaining different types of DB ● Develop Unit tests when needed ● Effectively communicate and document the developed software ● Work closely with team in an agile environment to ensure a high-quality product.

Required Skills ● Bachelor’s degree in engineering, math, physics or computer science or equivalent ● 1,5 year or more of experience in Back-end development ● Practical experience with MongoDB, MySQL ● Good knowledge Go and experience with any other language Ruby, Elixir, Rust, C++, Erlang, Python ● Excellent written and verbal communication skills ● Basic experience in agile software development (Jira, Redmine, Confluence) ● Basic Knowledge about an Application Lifecycle Development ● Practical experience with Docker containerization ● First insights into automation with CI\CD (Jenkins, Gitlab && etc.) ● First insights with TDD ● Basic experience with cloud services ● User of git/github/gitlab ● Strong interpersonal skills with ability to work both independently and as part of a team

Preferred ● Redis, Postgres ● WebSockets, RabbitMQ, Protobuf ● Experience with IOT ● Experience with Blockchain.

If you’re down the blockchain rabbit hole and you’re looking for somewhere to apply your skills, go ahead and get in touch on: [email protected]

Perks & Benefits

● An environment that embraces freedom and autonomy and values team spirit and open communication. We encourage you to put forward your ideas and thoughts ● Office / co-working / events space in the heart of Berlin ● The opportunity to contribute to cutting edge projects in a new and exciting industry with the potential to positively reshape our world ● The opportunity to ‘be your own boss’ – take responsibility for your work from day one ● An international team of DLT pioneers ● Flexible working hours

Interview Process

1. CV screening
2. Short test assignment
3. Cultural interview
4. Tech interview
5. Decision

🔗 Link

Job Description

We are looking for a skilled SysOps/DevOps Engineer and Linux admin. Help building, maintaining, and troubleshooting our infrastructure. Ensure the highest levels of availability, performance and security. Make a big impact by joining a small developer-centric team.

Your responsibilities

• Strategic thinking: Shape future features
• Development: Extend the platform
• Maintenance: Keep the infra running (security updates & review)
• Operations: Troubleshoot issues (review & restart failed services)
• Automation: Increase system efficiency & lower the human intervention
• Tuning: Evaluate performance, identify bottlenecks, implement solutions
• Security: Oversee security, backup, and redundancy strategies
• 2nd level support: Help clients

Please consider

• Strictly no agencies!
• This is a full time offering, half-time also possible
• Job location is Berlin Kreuzberg, nearby Schlesisches Tor
• No REMOTE position
• Don’t have all requirements? Please apply anyway
• This does not matter: race, religion, national origin, sexual orientation, gender identity, age, physical disability, unemployed

Perks & Benefits

• Join a small team to make a big impact
• Be part of a technology focused company culture
• Research continuously, acquiring knowledge
• Enjoy good working conditions
• Freedom of time
• Freedom of location
• Growth opportunities

Apply 🔗 Link

Job Description

Do you like building microservices, and you get excited by the idea, that you will be building a high- performance and scalable application that will change the face of the AdTech industry? We’re now looking for our next Gopher that will join our team and make a difference!

Who we are

We are a very international team and looking to grow and extend the team rapidly in the next 3 years. We are profitable, well-funded with an office in the heart of Berlin and clients lining up for our next breakthrough product. Our products are a Fraud Detection system and an Ad-serving-Platform helping our clients to save advertising costs and automating manual tasks. It’s a user-friendly product, enabled by a very configurable and complex backend.

About the role

We are looking for a passionate Software Engineer who’s in-love with technology, excited about building solutions and who loves teaching & learning from others.

Responsibilities

Work with all team members and management to build a next-gen breakthrough advertising product. Build new product features with passion for Golang Quick iterations on product features and experiments. Write clean and maintainable code. Ensure that each of our technology products meet industry standards. Write clean and testable code accompanied with proper tests and meaningful documentation. Develop microservices

Skills

Strong proficiency in Golang Experience working with Container technologies (Docker) Understands the nature of asynchronous programming, its quirks, and workarounds. Low latency / high performance software design. Understanding of unit and performance testing.

What do we offer

Choose your development environment Linux / MAC Choose your favourite IDE Kubernetes trainings hosted by our partner Google! A relocation package (1 month accommodation and flight) Fresh Fruits & Drinks in the office Friday GetTogethers & Team activities Flexible work hours (Core hours 10am – 4pm) Plenty of room for your own ideas and initiatives We look forward to your application! Send please your cover letter and CV (incl. photo) in English in MS Word or PDF format to:

[email protected] or at [email protected]

🔗 Link

Job Description

Your Role

• To architect, design, develop, deploy, evolve, and operate distributed systems in a DevOps way
• To be an integral part of an empowered and self-organizing team
• To actively collaborate with other engineers, product owners, domain experts and designers to deliver great outcomes
• To pair with others and review work, sharing knowledge and increasing quality across the board
• To scale our reach by integrating our platform with more banks, PSPs, insurance companies and other financial systems
• To champion continuous improvement of technology and the ways we work

Your Profile

• You have at least 5 years of professional experience as a Software Engineer
• You can build and debug reliable, high availability, secure and performant distributed services in Golang
• You care about quality and know when and how to ship code safely
• You have a solid understanding of system design, data structures, and algorithms
• You are experienced with deploying and operating services on Linux
• You can reason and drive technical decisions
• You love to experiment and use data to drive decision-making
• You get inspired, think of new ideas and like to share them with others

Perks & Benefits

• A tightly knit team of experienced engineers with lots of interesting challenges to dive into
• A modern technology stack: Golang, Kafka, PostgreSQL, Kubernetes, Docker, Terraform
• Extensive individual responsibility and personal support to grow professionally
• Become part of a talented multinational team of 50 working in Berlin
• Semi-monthly OptioAcademy – our internal knowledge sharing project
• Internal meetups – technical knowledge sharing events
• Prime office location – top floor of the city’s tallest building, the best view in Berlin!
• Various fun events (weekly team lunch, Friday after work drinks and BBQ, OptioAcademy, Meetups, Hackathons)
• EUR 2,000 annual training budget for conferences, books, trainings, etc.
• Free educational library, breakfast, drinks and fruit to keep energy levels high
• Your choice of hardware and software

Interview Process

1) Call with HR Manager (30 minutes) 2) Video Call with Backend engineer (60 minutes) 3) Backend coding challenge 4) Onsite/Video interview with department leads (180 minutes)

🔗 Link

Job Description

At HelloFresh, our mission is to change the way people eat - forever. From our 2011 founding in Europe’s vibrant tech hub Berlin, we’ve become the global market leader in the meal kit sector and inspire millions of energised home cooks across the globe every week.

We offer our meal kit boxes full of exciting recipes and thoughtfully sourced, fresh ingredients in more than 10 countries, operating from offices in Berlin, New York City, Sydney, Toronto, London and Amsterdam. Our more than 4,000 employees are the heart and soul of our highly international, fast-paced, and dynamic environment where innovation and smart, fast action is encouraged.

Our Engineering, Data, Product and Security teams are located in Berlin and New York and are critical to what we do. From procurement tools, to conversion rate optimization, live pricing tools, payment services and add-on upselling features, we work on challenging problems and have a high output of building and releasing features and engines that make our business thrive and deliver real financial impact.

You can get a taste of what we’ve been working on by checking out our tech blog.

About the job

• Be a valued member of an autonomous, cross-functional agile team
• Build and take operational responsibility for the HelloFresh platform
• Architect, design, develop, deploy and operate microservices that serve millions of users, using DevOps practices and tools
• Monitor and improve the usage of the services you build
• Close cooperation with Frontend, Devops and Business Intelligence teams
• Creating a smooth and pleasant end user experience, for both our customers and our internal users

Who we are looking for

• You are extremely comfortable and have solid back-end experience with at least one of the following languages: Go or Python
• You have extensive knowledge of OOP, Design Patterns and SOLID Principles
• Prior experience with unit, integration & functional testing, distributed architectures, applications tuning/profiling, and continuous integration are all highly valued
• You are used to working with relational and non relational databases
• Additddvfionally, any experience working with microservices is a plus

Interacting with front-ends, designers, product managers and our teams around the world is very much part of our day-to-day, so communication skills are vital. We are looking for strong problem-solvers who can apply their engineering skills to a wide range of the platforms and environments we support.

Perks & Benefits

What we offer

• Relocation assistance to move to Berlin and visa application support
• Competitive compensation
• Significant reduction on our meal kits
• Annual learning and development budget to attend conferences or purchase educational resources
• Sabbatical policy
• Work in our office located in the heart of Berlin
• A diverse and vibrant international environment
• A range of perks (Free in-house crash course in German, compensation for advanced German classes, in-house lecture series and knowledge sharing programme, discounts for our neighboring gym & Urban Sports Club, free weekly yoga classes, summer & winter parties, discount on our HelloFresh GO vending machines)
• The chance to have a significant impact on one of the fastest-growing technology companies in Europe in an exciting growth phase

Are you up for a challenge?

Please submit your complete application below including your salary expectations and earliest starting date.

🔗 Link

Job Description

ROLES AND RESPONSIBILITIES

Produce quality code that is maintainable, efficient, reliable and secure for mission critical real-time web applications. Work with multiple teams and lead multiple modules. Determine optimum frameworks, architectures and tools. Stay atop industry trends and new technology. Deploy code multiple times a day.

Apply 🔗 Link

Job Description

About Herdius:

Herdius is a Berlin based Blockchain Company. We are working on building homomorphic distributed private key generation which then is turned into value bearing products in different sectors. Currently we are very close to open beta-testing for the Herdius-Crypto-Wallet.
What we focus on on the blockchain field specifically is interoperability and trading. When connecting different chains on the key level, users can eliminate communication channels, bridges and complex systems. In other words, users can do cross-exchange and chain token swaps very conveniently and profitably for the user due to the cross-exchange arbitrage opportunities. The broader vision is one day to replace API auth keys with public-private key cryptography in order to provide layered access to user data.

All this makes for a crypto eco system and hedge fund that pays interest on all cryptocurrencies (that right now are unfortunately somewhat unusable and just laying around on wallets).

About the role:


Herdius is seeking for a Gopher Guru - an experienced Senior Golang Backend-Developer - to join our team of smart and visionary individuals. Experience in Blockchain is not necessary but a big plus.

We do not look at this role as another standard job but rather as great opportunity to build something really meaningful und amazing. Become a member of our great collective of top nodge engineers and people - altogether working to create cutting edge tech for the masses.

Besides the Herdius HQ in Berlin our Dev-Team is working mostly remote on different time-zones - so this vacancy surely also is location agnostic.

We would expect you to contribute at least 20hrs per week for part-time but joining full time is possible, too.



Cool things you will work on:

• Implementation and design of Herdius’ consensus algorithm and p2p order routing protocol.
• Lots of work around trading and high volume data handling and transfer.
• Design and implementation of a low-latency, high-availability, and performant algorithmic hedge fund and exchange order book.
• Integration of the Herdius distributed private key generation protocol.
• Constant performance testing and improvement of our architecture.
• Working on new financial products that have not been seen in the crypto world, setting up the base-layer infrastructure of a trading system and hedge fund

Skills & requirements

• Strong proficiency & experience working with Golang
• 3+ years of experience as a backend engineer, language agnostic but Go, React, NodeJS, Vue.JS, Scala, Angular, Rust preferred
• Experience and passion working with distributed systems and networking
• Strong interest in blockchains and related technologies
• Passion for delivering quality, secure code with loads of testing
• User authentication and authorization between multiple systems, servers, and environments
• Interest in privacy and cryptography, trading and financial service
• Understanding fundamental design principles behind various consensus algorithms
• Understanding differences between dPOS, DAGs, Plasma, BFT, aBFT, etc.
• Implementing automated testing platforms and unit tests
• Proficient understanding of code versioning tools, such as Git

Interview Process

Your education or professional experience at the end of the day does not matter to us. It all comes down to us being convinced by your skills and drive! 
We mainly look for people who are passionate about projects they work on and have the drive to see a project through. Our code is mostly done in Golang with some Solidity for connectivity with Ethereum.

How to apply:

Send anything that reflects on your knowledge and experience in the field. Besides a CV/LinkedIn-profile you can send links of your GitHub/Stack Overflow/Portfolio/ or something awesome you’ve built that you’re simply proud of.

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Job Description

How do you design and implement an API that communicates with thousands of cash registers in all stores of REWE, Penny and real,-? How do you automatically transfer money between different banks?

Software Engineer (m/f/*)

At Barzahlen we operate Germany’s largest independent payment infrastructure. Customers can use different services in several supermarkets to e.g. pay their invoices and deposit or withdraw cash from their private bank accounts using smartphone apps.

In order to further develop our systems and to implement new projects we are looking for software engineers. It is important for us that the following applies to you:

• You love coding! Software development is not just a job for you. You are coding on private projects as well and you are interested in the latest developments in the industry. You are fluent in at least one programming language.
• In the future you want to program in Ruby and Go! It would be awesome, if you’ve already worked with these two languages in the past but in case you haven’t, that’s also no big deal: In our experience developers get productive in these languages very fast.
• You are interested in the big picture! You want to know and understand how everything is connected, starting with our public APIs, over to our internal services and the PostgreSQL database. It’s your aspiration to ensure an error free operation of all our production systems through a mixture of code reviews, unit + integration tests and monitoring.

High requirements merit appropriate compensation. We are competing with other companies for your time and knowledge. So why should you decide to join us? Naturally this is quite hard to answer and depends on a lot of factors. Therefore we would be happy to answer all your questions regarding Barzahlen in a personal chat.

You can expect the following working for us:

• Our office is located in the middle of Berlin and easily accessible using public transport. We will procure your preferred technical devices, so that you can code as productively as possible. We also offer flexible working hours and the possibility to develop yourself further not just in your work related area of expertise but other areas as well.
• We have experts in the IT as well as in all other departments with excellent connections to other companies throughout Berlin and Germany. You can learn a lot of new things and experience how to build a “FinTech-Startup” from the ground up and to establish it in the market.
• After creating a solid base of operations in Germany over the last 4 years we plan to realize several large projects in the coming months which build upon our existing payment infrastructure.

We will be happy to tell you more about this in a personal chat :)

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Job Description

WHERE YOU’LL CONTRIBUTE

We are looking for a Backend Engineer to join our marvelous Product-Backend team: a group of people with a shared interest in scalability, modern workflows, sharp tools, and clear communication. At IDAGIO we’re all about drive, open-mindedness and trust - we take initiative, leave our comfort zone and show care, interest, and respect towards each other.

• Help us build the next version of our backend systems

• You are responsible for designing and building APIs to serve our client products as well as internal systems

• Work in a cross-functional team and touch nearly every part of the codebase to ensure the platform is scalable, robust, and easy-to-use

EXPERIENCE AND PERSONALITY TRAITS WE FIND RELEVANT FOR THIS POSITION

• Comprehensive experience with at least one of these languages: Go, Python, Ruby, Node.js

• Strong communication skills, ability to self-organise and work well within teams.

• Strong experience in architecture and development of scalable production quality backend systems.

• Experience with distributed systems, databases, data modeling, search indexing and analytics.

• Experience developing APIs and SDKs.

WHAT WE HAVE TO OFFER

• Join an international team with diverse backgrounds and extensive experience in both classical music and digital products

• Enjoy a friendly and purpose-driven working atmosphere in our office in Berlin Kreuzberg

• Directly contribute to the success of our evolving product

• Enjoy flexible working hours, occasional remote work and your choice of hardware and tools

• Competitive salary and collaborative environment

• We value long-lasting relationships: we provide a yearly education budget to make sure you develop and grow within your role + 2 additional days off

• Berlin is a beautiful city with a lot to offer. We’re happy to help with your Visa process to get you settled here

• Brush up your language skills! Our team speaks more than 30 languages, and we offer free German classes every Monday

• IDAGIO is well-funded by renowned investors such as Tengelmann Ventures, Macquarie Capital and b-to-v

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Job Description

Why Hasty?

Annotating data is an expensive hassle that nonetheless is the backbone of almost all applications of AI today. We are trying to take away some of that pain by assisting and automating to as high a degree as possible the process of labelling images, using machine learning. By doing so, we hope to open up the field of vision-based AI for new applications and for organizations that previously couldn’t use AI-powered technology as it was too expensive for them or because they lacked the technical know-how needed to develop an AI-solution from scratch.

As a workplace, we can offer you the opportunity to work on the cutting edge of AI in a startup environment, where you help us build a product from the ground up while being part of the core team with a voice in what we should do next.

Qualifications:

• 4 years of experience in designing and building complex software systems
• Extensive experience writing applications with Python
• Experience with Golang is a plus
• Experience designing and operating distributed systems
• Experience performing code reviews and pair-programming with other software engineers
• Proactive communication and excellent teamwork skills
• Ability to work independently and take ownership of tasks

What we offer:

• Competitive package with equity and a sizeable learning budget that you can spend as you wish to develop yourself
• A real problem to solve with the potential of having a real impact on the world around us
• A startup environment with flat hierarchies
• Support from a WATTx, a Berlin-based company builder, offering you the security and support of a larger organization
• Workplace flexibility - Home-office, remote, adjustable working hours - we place our trust in you being the best person to plan your workweek
• A great place for the intellectually curious, as we are sharing offices with other startups in the AI landscape

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Job Description

We are looking for a Software Engineering Intern, who would help us build our core identification platform and infrastructure. Our backend is built in Ruby on Rails and as our colleague you would be helping us to extend it, write APIs and integrate our backend with different other third-party vendors (machine learning, fake ID detection, fraud detection etc.). You would also receive an individual project, where you can take full ownership over a part of our system, get coaching, 1on1 sessions with experienced developers from our team and make an impact on our product from day one.

We expect you to:

Manage project priorities, deadlines, and deliverables with your team colleagues Be self-driven and come up with new ideas on how to improve our product Channel attention to detail in everything you tackle Possess excellent communication skills & high levels of empathy Demonstrate openness to feedback and radical transparency Encourage ambition in others Ideally be fluent in 2+ languages Be hungry for a revolution in digital identity

In return we’ll offer you:

A chance to work on one of the most exciting problems of the 21st century A diverse international team backed by leading VC’s A competitive salary Regular team events Flexible schedule & WFH opportunities

and one more thing…

You might find some Pizza & G&T’s in the office on Friday’s

How we operate:

We work hard and celebrate our success. Our challenges are vast and creativity is crucial. That means that we divide problems not tasks and emphasize autonomy in the approach. We strive towards a common goal and are all responsible for getting there. From accounting to design, we help each other achieve the best possible results by radical transparency and constant learning. We believe each one of us is a leader at this company and treat our peers accordingly.

If this feels like an environment you could see yourself in, we encourage you to apply and look forward to finding out more about you!

We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.

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Job Description

Role:

Advanced Blockchain AG are looking for an experienced Back-End Developer to join our core development team. You’ll be taking on new and ongoing projects with industry leading clients looking to be the first to implement and benefit from blockchain technology.


What we offer:

• An environment that embraces freedom and autonomy and values team spirit and open communication. We encourage you to put forward your thoughts and ideas.
• An open plan office in the heart of Berlin.
• The opportunity to contribute to cutting edge projects in a new and exciting industry with the potential to positively reshape our world.
• An international team of DLT pioneers from 12 different countries.
• Flexible working hours.

Responsibilities:

• Back-end development of our high-loaded web applications.
• Working with our Blockchain API.
• Rest API development.
• Micro services development with Docker containerisation.
• Working and maintaining different types of DB.
• Collaboration and architecture planning with the team and CTO on a high- performance back-end infrastructure.
• Mentoring your team.

Main requirements:

• 5+ years in back-end development
• Practical experience with MongoDB, MySQL, Redis, Postgres
• Strong knowledge of Go and experience with C++, Python
• Practical experience WebSockets, RabbitMQ, Protobuf
• Practical experience with Docker containerisation
• Practical experience with TDD
• Hands-on skills with automation and CI/CD (Jenkins, CircleCI)
• Practical experience with PHP
• Experience with Amazon AWS, Kubernetes
• Bachelor’s degree in computer science or similar
• Experience with Git
• Web services (REST, RPC, gRPC)
• Upper intermediate English / ability to communicate and work in an English speaking environment.

Non-essential requirements:

• Distributed Systems Technologies
• Experience with C, Elixir, Rust, Ruby, C#, Haskell
• Parallel Computing, Algorithms, Graph Theory, Applied Mathematics
• Security frameworks
• Monitoring systems (Grafana, Prometheus, Nagios)
• Apache, nginx
• Basic knowledge of JS

Get in touch with Diane Danne our HR Manager on: [email protected] for more information on the position or to schedule a call.

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Job Description

Based on our working product we would like to improve our cross-technology blockchain application for access rights and need a team member who drives the development right from the start. Therefore, we need support in the development of a blockchain based access management solution with following focus areas: • Set up and maintenance of a decentralized network • Programming of the function to create and share cryptographical access permissions • Communication to terminal devices via Bluetooth, NFC and WIFI • Integration of the web solution and of the mobile application • Coordination between different divisions as Backend Development, IT-Operations and Mobile App Development.

We are searching for a (Senior) Full Stack Developer who works on the overall solution including the development of the relevant SDKs for mobile applications. Therefore, interests and competencies in following areas are relevant: • Programming languages: Java, C, C++, JavaScript, C#, Golang, Swift • Understanding the architecture, design, and implementation of Blockchain systems, distributed ledgers and smart contracts • Cross-cutting operating systems: Mac, Windows, Linux • Cryptographical algorithms and security considerations • Experience with Bluetooth/BLE, p2p networks and/or file exchange is a big plus • Knowledge about continuous integration and unit tests • Familiar with Git as the version control system and first experiences with agile software development, e.g. Scrum • Additional competencies in Application Deployment, Scaling, Management and Continuous Delivery (Docker, Ansible, Kubernetes, etc…)

On top of that, we are searching for a team member, who is eager to learn, switch contexts and share his/her knowledge within the team. At the same time, he/she is able to take responsibility in a growing team and have some experience as mentor and decision maker.

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Job Description

For our startup we are looking for a Java Developer who knows what’s going on and who is a good addition to our highly skilled development team. We have space for people who like to focus on one area to become the goto person in this area as well as people who need a new challenge every now and then. People who have new ideas are more than welcome.

Responsibilities: - Work on the development of our disruptive platform for esports data distribution - Help us to improve and expand our OCR plattform - Work together with our DevOps team to make our system more reliable. - Work together with our Data Scientists to improve our data pipelines - Create APIs to deliver our data to customers - Have an eye for improvements in regards to performance and code quality

Requirements: - Strong understanding and moderate (3+ years) experience working with Java, and within a Java environment. - Moderate experience with both relational and non-relational databases - Moderate experience writing and working with a service-based architecture. - A fast learner who is highly motivated and independent, but also works well as part of a team. - Output-oriented way of working - Good problem solving skills (able to break down problems and troubleshooting bugs effectively) - Fluent in English (both written and spoken)

Pluses: - Experience with Python, Go-lang or Scala - Experience with Hibernate, SpringBoot, Akka, Gradle - Experience working with distributed messaging queues (RabbitMQ, Kafka, Pulsar) at enterprise scale - Experience with cloud-based deployment: AWS (or similar), Docker, Kubernetes. - Experience with game engines: Source Engine, Unreal Engine, Unity. - Experience with OCR technologies - Any skills or experience in reverse engineering computer games. - Passion for esports, gaming, and technology

We offer you: * A “get shit done” culture * Flexible working hours based on goal reaching rather than amount of time spent in the office * 10% of your work time to spend on esports and/or gambling topics of your choice (alone or as a team) * Internal training sessions in your field of profession and beyond * Gaming room stocked with 6 PCs to play and crush enemies with your colleagues * Bayes bar with free snacks and after work beers * Free massage sessions * Subsidized lunches that get delivered to the office * Free coffee, water & soft drinks to stay focused and hydrated * Lots of game enthusiasts to talk and share game experiences with

We look forward to receiving your application (cover letter, CV and references) as well as your salary requirements and earliest possible starting date. Please send an email containing this information to: [email protected]

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