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 felix.seidel@zweitag.de. 🚀
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
Senior Backend Engineer Iconmobile Berlin, Germany €80,000 to €90,000 a year
January 2021
2 Applicants This Week
More Than 6 Months Old
This job posting is no longer available
Job Description
About us
iconmobile group is an international product innovation corporation globally headquartered in Berlin (Germany) with further offices in Santa Monica, Detroit, Munich, Ingolstadt and Shanghai – having companies like icon incar and banbutsu within our professional family.
We are part of the WPP network blending more than a decade of design and user experience with deep technical expertise and business sense. With our clients from various industries like Automotive, Consumer Products, Financial Services and Health Care we aim for innovative solutions that are both commercially successful and game changing.
Our mission is to grow and transform businesses through the creation of new digital services and products with a focus on creating compelling user experiences to establish successful customer relationships.
Design is at the heart of what we do, fueled by our curiosity and the passion to deliver the best possible results. Our creative thinking is end to end, starting with ideas and paper, informing design of user experiences, while in parallel we validate technical feasibility and implement software and hardware prototypes. Our efforts are punctuated with future showcases or industrialized products at scale.
About the position
You will join the platform team which is part of the software engineering department . Your mission is to build modern, highly scalable cloud-based platforms using Golang. These platforms are used for hardware and software products which will be used in production by often millions of users.
You should be living in Berlin to be able to have (after Corona) some meetings in the office. Flexible REMOTE work is possible.
Your role
Envision and implement future-proof cloud platforms for hardware and software products
Continuously create, develop and deliver superior quality platforms on time
Lead other, more junior engineers by example
Your profile
Mindset:
Passion for simple code which is functional, well tested and easy to understand
Focus on delivering quality centered around a great experience for the API user
Experience with agile & distributed software development
Strong self-organizer with a hands-on mentality
Programming Languages:
4+ years of experience in backend development
3+ years in using Golang to build cloud platforms used in production
Stack & Systems:
Strong experience with Postgres, Redis and message queues like RabbitMQ
Strong experience in defining REST APIs and designing microservices
Experience in building distributed low-latency systems exposing an API
Experience with Docker, Kubernetes
Production experience with popular cloud services (Azure, AWS, GCP)
Experience with CI/CD pipelines
Methodologies and tools:
Agile (Scrum, Kanban), Jira, Confluence, Git
Test-driven development
Nice-to-have:
An open-source track record on Github
Team leading skills
Experience in working in a Golang Monorepo
Experience with oAuth 2.0
Communication:
Experience in working in an international, intercultural team
Good communication skills in English
Experience wth team chats (Slack or Mattermost) and video calls
What do we offer
Under the umbrella of WPP Holding, we offer you the perfect environment to develop yourself professionally and personally.
Regular feedback discussions and responsibility from day one will help you achieve your goals.
On the way there, we will make your everyday life easier with flexible working hours, training, employee events, drinks, snacks and various other benefits.
Go Backend Engineer Vizzlo Leipzig, Germany €40,000 to €55,000 a year
October 2019
3 Applicants This Week
More Than 6 Months Old
Job Description
Help us kickstart a new era of mind-blowing business graphics accessible to everyone!
Vizzlo creates individual business graphics. Whether for presentations, business documents, or the Web – with Vizzlo anybody can visualize their ideas in seconds.
We are looking for an experienced Go backend developer to join our team in Leipzig or remote. We are a growing team of enthusiasts in a VC-backed startup. We’re proud of our hands-on culture, we talk plainly to each other, and improve anything we’re working on until it’s perfect.
The role
As a Go backend engineer, you’ll work on our API servers and internal libraries that make the Vizzlo products come to live. Your code will talk to AWS storage infrastructure, to JavaScript frontends, and best of all, to lots of different third-party APIs of other products Vizzlo integrates with. You are passionate about idiomatic Go code but are not afraid to tackle obstacles from all kinds of points of view when necessary. You love to write reliable, scalable, and tested code.
What we’re looking for
3+ years of backend development experience, preferably in mid-sized teams
Verifiable Go knowledge
Proficiency in SQL
Comfort & prior experience in some of the following technologies of current SaaS stacks: AWS, MongoDB, Postgres, REST API, …
You worked on a SaaS product before? That’s a HUGE plus.
What we don’t care about
Your gender, where you’re coming from, etc
The degree you have—or not have
The tools you use to do your job
The time you spend at the office (Our office is very cool, you’ll love to be here)
What we offer
Full-time position with competitive remuneration package
Startup environment where your motivation and energy can make a difference – we learn something new every day, so can you!
International team of highly-motivated doers
Very flexible work time; home office or 100% remote possible
Should you chose to move here: Ultra-nice offices inside of an old spinning company, right in Leipzig’s hipster capital: Plagwitz, complete with the best espresso and ping-pong table
Senior Software Engineer trecker.com Berlin, Germany €40,000 to €80,000 a year
October 2018
4 Applicants This Week
More Than 6 Months Old
This job posting is no longer available
Job Description
trecker.com is an AgTech startup that digitizes the oldest industry in the world – agriculture! Our software-as-a-service delivers professional enterprise resource planning. It assists farms in keeping track of their business, improves operations and identifies optimization potential by crunching data.
Increasing agricultural innovation & technology is talked about being the most promising way to soon feed 10 billion people. Today, agriculture is a $3,1 tn market with an investment growth in AgTech equaling that of FinTech.
Within the last 6 years we were able to establish a solid position in the German market. While we're going to scale our multi-service platform by adding new functionalities we take on the challenge of synchronizing data, orchestrating microservices and keep them maintainable using docker containers on AWS (soon also with Kubernetes)!
Join us in our mission to become the most recommended software in agriculture worldwide and help farmers save time, money and nerves.
Reasons to join trecker.com
Challenging tasks that enable you to grow & excel: multi-service platform with green field projects
Cutting-edge tech stack, great test coverage, high code quality & multiple deploys per day
Meaningful product: The chance to revolutionize an entire sector & change the lives of millions
No-Worries package: Permanent contract + above average compensation package e.g. company pension, moving aid, kindergarten fund
Transparency: Know what's going on! We share business information openly
Work-Life Balance: Flexible working hours, napping room, working from home/remote option + vacation up to 38 days!
Freedom & Impact: We know a lot but by far not enough. That's why we want smart people to join our team and share their ideas
Personal development: Large development opportunities e.g. Tech talks, conference budget + speaker fund, team meetups, inhouse workshops etc.
Great team: Join a passionate team & fun company events such as our one week retreat in Greece :-)
Your playground
As Software Engineer you develop a sense of ownership for the code & architecture
You deliver value by getting the usefulness of software into the hands of users
You are part of a cross-functional team following agile methodologies
You write clean, testable, scalable and maintainable code that complies with web standards and best practices
You improve development knowledge/skills of the team by pair programming, teaching best practices in our trecker tech talks and by doing code reviews
You share your experience in building large-scale single-page applications and work on RESTful APIs and websockets
You support our team with your knowledge in designing scalable architecture and building processes with tools like webpack and package managers such as NPM
Plan, architect and integrate functionality in collaboration with backend, frontend, mobile developers and PM
You fit perfectly if you
Preferably have a BS/MS in Computer Science or a related technical field
Your actions are guided by the purpose to bring value to the user
Several years of professional experience and excellent knowledge of backend development, technologies - particularly Ruby on Rails; Node.js + Golang are a plus
Strong knowledge of OOP, REST and Microservices
Experience with messaging systems, such as RabbitMQ or SQS, and distributed cache systems, such as Redis
Good knowledge in backend infrastructure technologies like Linux, AWS, Continuous Integration/Delivery, Docker
Disciplined approach to automated testing and quality assurance
Prior experience with source control tools – Git, Github
Knowledge of Elasticsearch is big plus
Familiarity with native mobile development (iOS/Android) and Web front-end development (HTML5) would be a bonus
We believe that great, agile software engineering requires creativity in solving problems for our users, a scalable architecture, great coding as well as open minded communication.
At OneFootball we are delivering the product experience for football fans, the platform for our content partners and tools for our internal users. Our main systems consist of a micro service architecture with golang applications running on Kubernetes in AWS, serving iOS, Android and Web clients.
The Consumer Web Team is a cross-functional team of 8 passionate individuals is based in Berlin, Germany. We are looking for a Backend Engineer who understands how to organise multiple systems, is skilled in Golang and passionate about working products. Join us and be involved in the production process, from idea to user.
As Backend Engineer, you will focus on expanding the reach of OneFootball on the web.
Join the team and help us improve the user experience through direct impact on creating, shaping and delivering features of our main website.
Your role
Build the backend API powering onefootball.com
Work on the performance in terms of retention and acquisition, scale & roll out new features in close cooperation with other engineers & stakeholders
Have an impact on systems and features used by millions of users
Be in contact with technologies from different areas
Your profile
You have been developing backend services with Go in a professional setting for at least 4 years already
You care about software quality and are familiar with agile methodologies
You have worked with Docker and Kubernetes
You are familiar with SQL and Redis
You have experience in writing REST Services
You have a positive attitude and can communicate complex ideas in English with ease
If we have captured your interest and you want to help us build the ultimate media platform for football fans, apply now and join our engineering team!
OneFootball strives for a healthy and safe workplace and is committed to building diverse teams.
Backend Developer Blocksize Capital Frankfurt, Germany €50,000 to €60,000 a year
September 2020
1 Applicants This Week
More Than 6 Months Old
Job Description
About Blocksize Capital
Blocksize Capital makes the DLT- and Blockchain-based asset market accessible for financial institutions. Our software solution delegates all tasks and challenges related to managing Digital Assets, ranging from trading and reporting to managing an entire portfolio. Our clients consist of asset managers, family offices and institutional investors.
About the job
As a Backend Developer you will be joining our development team focusing on extending and maintaining our backend infrastructure. Your main tasks will include to consolidate and interface with different blockchains, exchanges and third-party data providers to provide a unified API to be used by our clients or the in-house-developed trading frontend. You will help us to continuously improve our robust and low-latency infrastructure capable of handling large amounts of data while remaining highly scalable under different demands.
Our tech stack
Go, gRPC
Postgresql
Kubernetes, Docker
Prometheus, Grafana
GCP
Your profile
You are a passionate backend software developer with experience in the area of modern software / system architectures
You have successfully completed a degree in computer science, business informatics, business information systems or equivalent
You are interested in financial concepts and the realm of Blockchain / DLT
You share our love for Go
Requirements
You have profound experience in the development and consumption of REST & WebSocket APIs, preferably using Go
You are fluent in different microservice design/communication patterns
You are comfortable in testing and documenting infrastructure and APIs
You are able to perform basic CRUD operations using SQL
Nice to Have
You have had experience with DevOps tooling, such as: Shell scripting, CI/CD (Gitlab), Kubernetes
You know your way around cloud provider offerings (GCP)
You are proficient in complex SQL-queries
What we’re offering
Become part of a young and agile team
Take an interest in topics that are really fun, interesting and challenging
Leave your footprint, because your ideas and solutions are important to us!
The result counts! We pursue a flexible working time and workplace model (home office)
Excellent infrastructure of your choice (Apple, BYOD, Coursera, Gym, etc.)
If we’ve got you interested, apply now to learn more about Blocksize Capital and the role!
(Go) Backend Engineer (m/f/d) BlueGo Munchen, Germany €55,000 to €75,000 a year
February 2020
5 Applicants This Week
More Than 6 Months Old
Job Description
About us
As a startup dedicated to public transport, our vision is to make buying tickets for passengers as easy as possible. Therefore, we are developing a ticketing system that automatically detects beginning and end of a journey. Based on the detection, it is possible to provide the passenger with the cheapest ticket.
The problems we are trying to solve are both interesting and challenging: developing a reliable ride detection algorithm based on data from smartphone sensors while creating a solution that attracts both passengers and public transport providers.
We value active collaboration and independent work. We believe that together we can build a great solution that will have a major impact on public transport.
Responsibilities
Independent development and improvement of route detection algorithm
Use of location and acceleration data delivered by the smartphone for route calculations
Application for mathematical and geographic tools for calculations
Test route detection algorithm
Team leading and team communication
Minimum qualifications
Expert knowledge of two ore more functional programming languages
In-depth expertise in software architecture
Advanced knowledge of test deployment (CI/CD)
Passion for backend development
Independent working
Preferred qualifications
Experience with Golang
Very good knowledge in REST-API Deployment
Comprehensive knowledge with SQL and NoSQL databases
Experience with Redis cache
Interest to learn more programming languages as needed
Benefits
Flexible working hours
Freedom to contribute and implement your own ideas
We are currently looking for a skilled Senior Golang Developer to join the backend team of our Shop Applications Unit.
The Shop Applications Unit constantly improves the App, Mobile Website and Desktop Website. These big-scale products are each visited by several million people every month. Our highly scalable API updates and delivers our product data for our shop frontends in real-time – in peak times with up to millions of requests per minute! In that case, it truly matters if an API call takes 200ms or 50ms to ensure the best shopping experience. The team constantly challenges itself to raise the bar of what is “state of the art” and to provide the fastest and most efficient solutions to upcoming projects.
Challenges the team will be working on in the next months:
Working on a new backend API with the goal to unify core business logic to significantly reduce complexity in our frontends
Hardening and optimization of the API for production use
Finding solutions for challenges we face as we grow
What you will do
Develop a gRPC API in Go that encapsulates core business logic in a simple to use API for our frontend developers
Improve scalability and technical performance of our API and its response times
Work on a high-scalable product in the AWS ecosystem
Draft architectural decisions together with our Tech Lead and explore new technologies
Have a direct impact on team processes by regular agile retrospectives
Exchange your knowledge with other developers and be part of our ABOUT YOU TECH community
Who you are
You have 5+ years of experience in building complex backend API’s
You are very proficient in Go development
You have good knowledge of Elasticsearch and indexing products
You have experience in working with relational databases (e.g. MySQL) and key-value stores (e.g. Redis)
You write well-structured, efficient and maintainable code and actively keep the quality of the codebase in check
You have excellent analytical and problem-solving skills and enjoy building scalable distributed systems
You are used to working in an English speaking & agile environment
Nice to have:
You have experience in the AWS Ecosystem (Cloud Formation, Terraform, ElastiCache, etc.), Bamboo
You have experience with gRPC or GraphQL
You are familiar with centralized logging, monitoring, and alerting solutions
You understand DevOps, Containerization and Cloud solutions
Benefits
Grow together with one of the fastest growing eCommerce companies in Europe
Flexible working times
40% discount on our online shop
Fresh fruits + drinks everywhere
Language courses (German & English)
Free sports courses & reduced price for gym membership
Subsidized public transportation ticket
Free choice of hardware and operating system (Mac, Windows, Linux) also for private usage
State-of-the-art tech stack running on AWS
Modern office in the city center of Hamburg
International working environment and English as company language
Company flats (subject to availability)
Agile work environment (MOVE) and cross-functional teams
Free access to Germany’s greatest developer conference code.talks
Company pension scheme
Free Laracasts and Egghead account
Help in relocation and VISA process
We are looking forward to receiving your application – preferably via our online application portal! Thus, we can ensure a faster process and for you it is very easy to upload your application documents.
As our next full-time backend engineer, you'll help us build a securities API for financial institutions, the first such API in Europe. Your goal is to take ownership of designing, developing and maintaining our microservice architecture (written in Go).
A greenfield project. Cutting edge technologies. No legacy code.
This role will give you the opportunity to:
Build fault-tolerant, horizontally scalable systems. Using Microservice architecture powered by Docker, Kubernetes, Linkerd service mesh, and Kong as a Gateway.
Build event-driven applications using Kafka
Work on different aspects of our API-product portfolio as part of the development team
Develop data processing and storing mechanisms
Work on improving the reliability of our API tools, as well as developing innovative tools
Work with an agile methodology: at the end of the 2-weeks sprint cycle we have a demo with a retrospective to make our software delivering faster
Why Upvest:
We're working on solving a hard problem: fixing the European securities financial infrastructure that empowers more people to be able to invest. You have the opportunity to contribute to this change.
We invest in you. From access to a personal coach, development budget and plenty of opportunities to grow in your role.
We take hiring seriously with a strong focus on keeping a high bar when interviewing (equally important is that we also hire decent people who are passionate about their craft and helping up achieve our shared mission).
While we're not quite fully-remote, we are committed to being a flexible employer as we understand you don't have to be in the office to do your best work.
We live a culture of empowerment, trust (that we hire the best people and get out of their way) and openness (there's a greater advantage in sharing information than keeping it to ourselves).
We ensure we take time to have fun as a team. We're looking forward to having more time in-person again once this becomes possible again.