Golang Open Systems AG Jobs in Germany

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: danne@advancedblockchain.com for more information on the position or to schedule a call.

Job Description

HDI Systeme AG is looking for Backend Software Engineers at all levels of experience to join our rapidly growing team in Hilden. You will design, build, scale, and maintain internal and external applications while contributing your expertise in technology, architecture, and systems to the larger organization.

About Us

We (de)code insurance. Our aim is to make insurance more simple by understanding customer needs to the fullest and serve them with digital solutions. At HDI Systeme AG we are developing digital solutions focussed on market effciency and employing state-of-the-art technologies. As a team we are pursuing our goals across the HDI Gruppe - enabling higher customer satisfaction is our aspiration. HDI Systeme AG is the IT service provider of the HDI Gruppe, the third largest insurance group in Germany with more than 1.000 employees in Hanover, Cologne, Hilden and Hamburg.

Your Responsibilities:

• Design, develop, test and improve innovative backend software for sales applications
• Work in a cloud-based (AWS) environment with serverless applications
• Measure, analyze, understand, and improve application performance
• Build and maintain strong relationships with our Data, Sales and DevOps teams
• Help drive innovation and be an advocate for software quality
• Assist directly and indirectly in hiring and in developing technical talent
• Manage individual project priorities, deadlines and deliverables

Your Qualifications:

• Hands on experience in software engineering with a commonly used language (Go, C, C++, Java etc.)
• Experience in working in a Linux environment
• You're familiar with common database systems, especially NoSQL
• Experience in working with microservices
• You understand industry best practices and are well-versed in modern software architecture practices
• You're a quick learner, with an enthusiasm for software engineering and learning new technologies
• You're independent and comfortable working in a fast-paced environment

Preferred Qualifications:

• Degree in Computer Science, Information Technology, Engineering, or a technical field
• Experience with building production applications in Go
• Experience with Cloud Services (AWS, Google Cloud, or Azure)
• Experience with asynchronous applications
• You've worked on serverless systems such as AWS Lambda or Google Cloud Functions
• Basic German skills

Why work with us:

• You'll be at the front line of innovation driving new technologies in our corporate environment
• You get a challenging working environment with an ambitious team of individuals with unique backgrounds and expertise
• You'll have excellent technical and personal development opportunities (training, conferences & events)
• We have an open door culture where ideas and initiatives are expected and encouraged
• With our trust-based flexible working hours concept, you can easily balance job and private life
• Exercise or relax with our various sports offers
• With your company ticket for local public transport, you can get to work relaxed
• Fruit and drinks are available for you in the office

Job Description

Centrifuge is growing and we need your help to build the future of open, decentralized business software. Join our team building a decentralized business operating system on top of public blockchains.

You are either already an expert in distributed ledgers/blockchain/Ethereum or wish to become one. You want to join a team of technologists, who really care about writing high quality, open source code. You are self-motivated and don't need many directions to get a job done together with your teammates. We are knowledgeable, curious, and nice people, who have a shared vision to re-shape the world of business software. We would love to hear from you if this feels like a good home for you.

Responsibilities - Write clean, maintainable, secure code for distributed applications. - Write Solitidy code and create the corresponding UI/UX. We mostly code in Solidity, Node/JS, and Go. - Write code that deals with high-value financial transactions. - Be directly responsible for the creation and maintenance of modules and core infrastructure of the distributed Centrifuge operating system. - Drive your projects from inception to completion by owning your own deliverable and collaborating with your teammates. - Review code of others, maintain shared libraries, contribute to our shared infrastructure and toolbox. - Be a strong individual contributor in our team-oriented environment. We care about our team and people and value collaboration.

Requirements - You like solving problems and working with smart, nice people. - A strong and proven computer science or computer engineering background. - Track record of high quality, well-crafted code that has been used in production environments. - Communicate in English in our fast-paced and results-oriented environment. - Comfortable cooperating with the team in your office as well as remote team members. - Experience in API development and integration.

A plus: - You are familiar with cryptographic algorithms, decentralized systems, distributed consensus systems and security and trust reduction. - You wrote Ethereum smart contracts in Solidity. - Experience writing code with web3.js. - Experience with contributing to and managing open source projects.

About Centrifuge Centrifuge is the decentralized operating system to power global trade and commerce. We are building the systems and tools on public blockchain infrastructure to enable open, fair, and transparent business within the Financial Supply Chain.

Over the last 20 years, we built companies and software to address major issues in the world of Procure to Pay. Global large-scale business networks, invoicing between companies, providing financing for the supply chain - to name a few services we created over the years.

The Centrifuge OS allows businesses to transact on a global, decentralized network while maintaining control of their data. It democratizes access to business processes, makes the supply chain more transparent, and removes the middle-men who extract money from the global economy for their own sake.

We are setting up our Berlin offices right now and you will be one of the first ones to join the team and shape our culture.

Job Description

You are either already an expert in distributed ledgers/blockchain/Ethereum or wish to become one. You want to join a team of technologists, who really care about writing high quality, open source code. You are self-motivated and don't need many directions to get a job done together with your teammates. We are knowledgeable, curious, and nice people, who have a shared vision to re-shape the world of business software. We would love to hear from you if this feels like a good home for you.

Responsibilities - Write clean, maintainable, secure code for distributed applications. - Build software with Solidity, JS/Node and Go. - Write code that deals with high-value financial transactions. - Scalability, security, and ease of deployment for our end-users are key. Your code is operated by the largest corporations on this planet. - Build the infrastructure that connects our enterprise customers with Ethereum and the Centrifuge peer to peer network. - Be directly responsible for the creation and maintenance of core Centrifuge modules. - Drive your projects from inception to completion by owning your own deliverable and collaborating with your teammates. - Review code of others, maintain shared libraries, contribute to our shared infrastructure and toolbox. - Be a strong individual contributor in our team-oriented environment. We care about our team and people and value collaboration.

Requirements - You like solving problems and working with smart, nice people. - A strong and proven computer science or computer engineering background. - Track record of high quality, well-crafted code that has been used in production environments. - Communicate in English in our fast-paced and results-oriented environment. - Comfortable cooperating with the team in your office as well as remote team members. - Experience in API development and integration.

A plus: - You are familiar with cryptographic algorithms, decentralized systems, distributed consensus systems and security and trust reduction. - You wrote applications before that deal with invoices, purchase orders, payments, or other transactions of the financial supply chain. - You know your way around writing code for large-scale peer to peer applications. - Experience with contributing to and managing open source projects. - Experience shipping and maintaining code that is used in enterprise environments.

About Centrifuge Centrifuge is the decentralized operating system to power global trade and commerce. We are building the systems and tools on public blockchain infrastructure to enable open, fair, and transparent business within the Financial Supply Chain.

Over the last 20 years, we built companies and software to address major issues in the world of Procure to Pay. Global large-scale business networks, invoicing between companies, providing financing for the supply chain - to name a few services we created over the years.

The Centrifuge OS allows businesses to transact on a global, decentralized network while maintaining control of their data. It democratizes access to business processes, makes the supply chain more transparent, and removes the middle-men who extract money from the global economy for their own sake. We are setting up our Berlin offices right now and you will be one of the first ones to join the team and shape our culture.

Job Description

Opinary has one mission: We help people make up their minds. Globally, millions of people use our polling technology to share their opinion, engage in open dialogue, and understand complex debates - all with one simple click. And, by harnessing the latest advances in Machine Learning, NLP, and distributed systems design, our platform ensures that readers get the right question at the right time.

With over 80 million monthly users, we’re one of the fastest-growing startups in the media space. You’ve probably used our tools yourself on publishers like The Times, Spiegel Online, NBC, Huffington Post, or the Independent.

As a Platform Engineer, your technical chops will directly impact today’s debates in the most relevant media outlets.

Who we’re looking for

Sure, we need someone talented. But, most importantly, we are looking for someone who:

• Owns challenges. Who doesn’t back down or say “that’s not my job.”
• Is a great communicator and listener. Likes to collaborate across teams and understand why their project matters to everyone in the company.
• Embodies our values of care and respect. That means caring for and respecting your colleagues as well as your own mental and physical health.
• Is comfortable with designing and developing large distributed systems.
• Has a solid understanding of effective engineering practices (TDD, XP, etc.).
• Has worked in modern cloud platforms such as AWS/GCP.
• Is familiar with the concepts of event-driven architectures.

Your challenges

• You develop software in a compliant and rigorous way, whilst maximizing the value add to our stakeholders: users, brands & publishers.
• You take ownership of the existing codebase and proactively work on improving the stability of it.
• You maintain and monitor the live system, and you are responsible for the swift recovery in case of issues.
• You design and implement new services that support the needs of the stakeholders.
• You enhance our technology stack and lead the implementation of platforms both as well as the systems infrastructure of our product
• You collaborate with our Product Lead to refine the product-market fit
• You work in a close and trustful relationship with the founders, product and sales teams in a cross-discipline agile environment

Your profile

• You had the chance to work in a team on a live project for at least three years as a Software Engineer.
• You approach the problems holistically, and you can make tradeoffs based on data.
• You value coding as your craft and understand that writing software is about solving technical problems - but equally important, something to be maintained and understood by your peers.
• You enjoy pair-programming with your colleagues.
• You had the opportunity to debug a live service, on live traffic, with live users.
• You’re proactive and curious: always eager to learn new things and happy to share your knowledge with others.

What we offer

• We have a diverse and open culture from different professional and personal backgrounds. Our agile team provides the space to directly influence and impact our product positively
• Growth and continuous learning: everyone at Opinary is encouraged to trust in experiments and personally grow - with a generous learning budget to help out
• We provide a flexible working environment. Choose your working hours, take unlimited work-from-home and holidays, and choose your preferred laptop

Job Description

About Fraugster:

Fraugster is a payment security company with the goal of eliminating fraud and increasing our customers’ profits. Over the last years we’ve invented an artificial intelligence technology that combines human-like accuracy with machine scalability. This ability lets us foresee fraudulent attacks before they actually happen and gives us a distinct competitive advantage over every other player in the payment security space.

We’re already working with some of the most well-known payment and e-commerce companies in the world. Notable clients include companies like Ingenico and SIX Payments. Fraugster is backed by top-tier investors and is currently managing billions of Euros for its clients.

Job Description:

We make decisions based on data, it’s the core of our business, and it’s providing insights into the effectiveness of our product and features. We believe data powers creativity and productivity, and that a robust, reliable and scalable infrastructure is needed to support this.

Our Observability team is operating the solutions that make gaining insights from data possible with monitoring, logging, metrics and other telemetry tools. The team is responsible for simplifying the process of building data and metrics-driven products and features. This is a high impact, high visibility role that directly affects the experiences of all our engineers.

As we take on more services and responsibilities, we're looking to add another member to the team.

What you will be doing:

• Design, build, and operate the observability stack of large-scale data infrastructure systems from the early stage
• Improve the stack, dive into new technologies and figure out how best to monitor them
• Provide easy ways to understand the state of the services at a given point in time, including the ability to trace requests across multiple services
• Work with development teams in an advisory capacity to optimize usage of monitoring and logging tools: what to log, measure and alert, which metrics and events are important and why through guidance, documentation and internal discussion
• Write well-crafted, well-tested, readable, maintainable code
• Participate in code reviews to ensure code quality and distribute knowledge, including Open-Source projects
• Mentor and guide junior engineers as the team grows

You’re a good fit if some of the below applies to you:

• You are a great teammate who can work effectively as part of a cross-functional team
• You have strong analytical, problem solving, debugging, and troubleshooting skills
• You are a good communicator in English, both verbal and written
• You are knowledgeable about a variety of infrastructure and development topics
• You have worked in an environment that runs multiple services handling a large number of transactions, owned by different teams
• You have the skills to help a development team to perform complex debugging, but you also know when to let the team figure things out on their own
• You enjoy thinking about how to make life simpler for other engineers

The experience we are looking for:

• Designing, implementing and debugging large-scale data infrastructure systems, and identifying their performance bottlenecks
• Understanding of long-term impacts of key design decisions and handling failure scenarios
• Experience in Go is a big plus, but not strictly required and experience with a similar backend language would suffice. Our team can teach you and get you up to speed
• Monitoring and operating open source software in production at scale e.g. Kafka, Kubernetes, Docker
• Operating telemetry tools, e.g. the ELK stack, Prometheus, Grafana, Jaeger, Istio and others
• Not everything listed is required and not everything required is listed. If you have skills that are not listed but you think will contribute to your performance let us know!

What we offer:

• The chance to be be part of a growing team of with plenty of room to leave your mark and impact company strategy and growth
• Fun, creative and focused teams committed to learning and problem-solving through collaboration
• Competitive salary and, if required, visa sponsorship and a relocation package
• Office located in the heart of Berlin with teammates from around the world
• Time to work on projects that are not in the scope of the sprint, standing desks, team events and a weekly company dinner
• An environment in which you can balance great work with a great life

We value ownership and innovation, and we build our teams with that in mind. We want each team to be responsible and accountable for what they ship. We also don't want to reinvent the wheel every time, so we try to get alignment in terms of practices and technologies. Our philosophy to achieve this is relying on excellent tooling and automation over policies and processes.

We know that diverse teams are strong teams, and welcome those with alternative identities, backgrounds, and experiences from all over the world. We’re a team of technically curious problem solvers. Come and join us.

We are looking forward to receiving your application!

Job Description

Our goal is to replace the physical key and to revolutionize key management. Our smart access-as-a-service solution KIWI allows users to unlock doors completely hands-free with our identity token KIWI Ki or by using our KIWI App. Our customers from the real estate industry use the KIWI Portal to simplify key management. And service providers like Deutsche Post and waste management companies open the doors of apartment buildings with KIWI. More than 47.000 households in 15 cities are already connected to the KIWI Infrastructure.

Our development team is an interdisciplinary mix, covering the full range from hardware and firmware development through systems, web, and mobile. Our highest priority is safeguarding the privacy and security of our users. We believe that it’s possible to have a connected system without gathering huge amounts of information on the private lives of our customers. As a result, we have developed our whole system almost entirely in-house, using cutting-edge cryptography, an innovative wireless sensor network, and an open-source approach.

YOUR ROLE

The role of the SRE at KIWI is to allow for the business to make changes quickly and safely within the company. Your role includes: - Working with the business to translate business requirements into technical implementations. - Designing and building tooling and process patterns to be used by the rest of the Engineering team. - Maintain production and test environments.

YOUR SKILLS

• Excellent, in-depth knowledge of GNU/Linux and associated technologies.
• Strong knowledge of TCP/IP and UDP.
• Highly skilled in at least one scripting language.
• Working experience with Kubernetes, preferably running on CoreOS, continuous integration pipelines (Gitlab-CI, Travis, Circle).
• An understanding of Ceph network block storage.
• Python or Golang background a plus.
• Excellent communication skills, both written and verbal.
• A proven track record of working with Linux systems.
• Able to work autonomously. Identifying and prioritising tasks; experience enough to know when you seek input from others.

WE OFFER

• A high degree of autonomy, challenging tasks, and the ability to impact the company every day
• An inspiring work environment based on team spirit, fun and passion for our product
• Employee stock ownership plan und training budgets
• German classes for non-native speakers
• Weekly team breakfast and lunch as well as unlimited coffee and other drinks
• A friendly and international team in an office in Berlin Mitte

Join our talented team and be a part of the KIWI story! We are looking forward to receive your application. Please apply here: https://kiwi-jobs.personio.de/job/13157#apply. Your contact person is Charlotte.

Job Description

WalletConnect is the open-source web3 standard to connect blockchain wallets to dapps. Started four years ago, our mission is to make web3 accessible to everyone. Every month, millions of people use WalletConnect in over 200 integrations.

We’re looking for a backend golang engineer to join our team to build and scale our network. To help grow web3, we recently launched WalletConnect 2.0 with new features, including multi-chain support, a decentralized back-end, faster connections, and 10x performance and scalability. You will help us expand and scale our backend messaging infrastructure.

To learn more about our plans for 2.0, take a look at our recent presentation at EthCC. https://www.youtube.com/watch?v=8cBIw7lFNnU

Requirements

You will be responsible for building Golang messaging services. A main challenge is growing our services to scale for our millions of users across billions of websocket connections every month, as well as ensuring security and resiliency.

To help with your role, you will have the support of our devops team to deploy and manage our infrastructure, will work closely with our protocol and SDK teams, and have exposure to the full WalletConnect stack.

The ideal candidate is immersed in the best practices of golang at scale, messaging systems and Websockets.

Responsibilities:

• Building a microservice architecture based on Golang with scaling in mind
• Work with protocols such as Websockets, gRPC
• Help with monitoring by creating metrics with Prometheus and Grafana
• Develop unit and integration tests for core business logic
• Work closely with our devops team to manage and scale our infrastructure

Must have:

• 3+ years professional experience in software development at least one modern programming language, including Golang, TypeScript, C++, Java, or Rust.
• At least 1 year of professional Golang experience.
• Experience using Postgres, AWS, with demonstrable experience with systems engineering and automation.
• You have experience with network programming or distributed systems development
• Experience working on products at scale

Nice to have:

• Experience working on systems optimisation
• Experience with k8s or Nomad a plus
• Desire to learn more about Blockchain technologies or experience with PoS systems.
• Familiarity with operations/SRE and the concept of infrastructure as code
• Websocket experience

Benefits

What WalletConnect offers:

• Fully remote position with flexible timezone (CET/EST preferred)
• Competitive salary
• Company equity
• Coworking allowance

Job Description

ChartMogul Engineering is well on its journey to fully embrace a DevOps-driven culture!

Our DevOps team builds the infrastructure, processes, and tools necessary to release, monitor, and manage our applications with high velocity and efficiency in a modern cloud-native environment. We value automation, self-service, and empowerment of product engineering to manage our codebase from development to production.

By joining our team, you will play a significant role in supporting our growing architecture, working with edge cloud technologies, and implementing innovative solutions for our products. As with many young companies, your responsibilities may evolve. Here are some of the things we expect you to take on as a DevOps Engineer:

• End-to-end ownership of everything related to the infrastructure that keeps ChartMogul alive and running, including running daily operations of our infrastructure on AWS
• Collaborate with the product engineering teams and the various service support teams in engineering (QA, AppSec, Data Engineering) in service of maintaining, building, and improving our underlying systems so that they are highly available, scalable and performant
• Actively contribute to improving our systems and evolve our infrastructure: flawless CI/CD pipelines, Kubernetes deployments, containers monitoring, automation with infrastructure as code, GitOps, reliability on AWS cloud
• Join our constant efforts to meet and overcome standards for information security and compliance; ensuring our customer data is as safe as possible is our top priority
• Proactively identify and validate areas of improvement as necessary by using the best tool available for a given case and constantly researching and evaluating industry trends that fit ChartMogul's needs

Our Tech Stack

We run a combination of Kubernetes clusters and a fleet of Linux machines for our Rails stack, along with multiple microservices backed up by PostgreSQL databases and a Redis datastore. Our legacy infrastructure is running on AWS EKS (Kubernetes and containers).

Technologies from our stack: AWS, Kubernetes on EKS, Docker, Terraform, SaltStack, DataDog, Nginx, Redis, PostgreSQL, Sidekiq, Redis, Ruby/Rails, Go, JS (BackboneJS, VueJS), Rust, Linux, Bash

Job requirements

Professionally

• 2 years of professional experience as a DevOps / SRE / Systems Engineer
• Hands-on experience with high traffic production infrastructure
• Strong knowledge of Linux and computer networking
• Experience with AWS cloud and services
• Experience with configuration management systems
• Experience with managing and monitoring databases
• Next to speaking English fluently, you can understand and translate business requirements into clearly articulated technology solutions

Nice to have

• Understanding the cloud ecosystem in modern software development: Infrastructure as Code, Immutable infrastructure, git, CI/CD pipelines, containers, serverless, monitoring
• Experience with Docker and Kubernetes
• Experience with PostgreSQL databases and RDS
• Hands-on production experience with CloudFormation or Terraform on AWS cloud

Behaviourally

• Clear and precise communications, especially when working under the pressure of a production failure and/or incident affecting our users
• You're passionate about the DevOps culture and keep up with news and technologies in the cloud, networking, Linux, and open-source area
• You're eager to learn, contribute to design and architecture decisions, and inspire change
• You value automation; you are eager to spend a bit more time automating things that require more than one manual trigger

What is it like to work at ChartMogul?

• You’ll join the adventures of an early-stage company and experience what it means to have an incredibly impactful job
• You’ll become part of a team of nice, awesome, and highly dedicated people who all have the same mission: Helping companies build better businesses
• Flexible hours with healthy work-life balance
• All employees, including contractors, receive sick days, paid holiday days, and paternity leave
• You’ll receive a great salary pack (market or upmarket)!

Application Process

1. Application is reviewed
2. Introductory + technical call with our DevOps Engineer
3. Final interview with our Head of Engineering
4. Reference checks
5. Offer

This is a full-time remote position. Please note that we are only able to consider applicants who are eligible to work in the EU at this time.

Job Description

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.