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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
YOUR PROFILE
WHY YOU SHOULD JOIN SUMUP
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
WHY YOU SHOULD JOIN SUMUP
This job posting is no longer available
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
YOUR PROFILE
WHY YOU SHOULD JOIN SUMUP
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.
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
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. 🚀
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:
jobs@24metrics.com or at christina@24metrics.com
This job posting is no longer available
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:
Responsibilities:
Main requirements:
Non-essential requirements:
Get in touch with Diane Danne our HR Manager on: danne@advancedblockchain.com for more information on the position or to schedule a call.
This job posting is no longer available
Why this job matters
IT has become the core asset for most businesses. Our Cloud Native engineers guide our clients through this increasingly complex IT landscape. We build confidence with cloud technologies and help clients transition to a modern architecture. Our engineers also work with Cloud Native vendors on next-generation open-source tools.
What we look for
Why apply
You’ll be in charge of shaping a new IT architecture for some of the best companies in the world. We work in small, self-managed teams that take full responsibility for the projects. We’re not tech/cloud service resellers. We mix the best open-source tools and services that make sense for the project. We move fast and deliver mainly short-term projects (2-4 months), mostly working from our offices. We automate the infrastructure of our customers and deploy orchestration layers on top of it to run apps and data. All our engineers are encouraged to share their knowledge at conferences and within the company. We consider ourselves a continuous learning company. There are no rockstars here, just people that wanna grow themselves and their community. Switching between projects/roles/offices is possible and quite common.
This job posting is no longer available
We're looking for someone who has: - At least 5 years of software engineering experience with open source contributions. - Experience developing, releasing, and maintaining production software. - Significant experience writing Golang or the ability and desire to become proficient in new languages. - A strong grasp of computer science fundamentals. - Deep understanding of the theory and implementation of database trees on real file systems. - Experience working in an agile development environment. - The ability to take ownership and see initiatives through. - Worked with and mentored junior engineers. - Exceptional communication skills. - Experience working with distributed teams.
What your primary responsibilities will be: - Improve the IAVL codebase by committing DRY, well tested code. - Work with the Cosmos-SDK team to keep the IAVL tree and its proofs well integrated. - Optimize our implementation of the IAVL tree and its proofs. - Research, design, and implement improvements to the IAVL tree, the proofs, and related protocols. - Help formalize the specification of the IAVL tree and proofs and ensure the implementation adheres to the spec. - Develop simulations for testing the behaviour of the IAVL tree under various loads and read/write strategies. - Develop alternatives to the IAVL tree like the Ethereum Patricia Trie that adhere to the same interfaces. - Mentor junior engineers and support the growth and health of the team. - Review pull requests and provide valuable feedback to members of the team and open source contributors.
What we offer: - The opportunity to build the future of the internet. - An exciting role building open source software. - Flexible work schedule. - At least 4 weeks of paid vacation. - Very competitive salary, including equity.
About our application process: Qualified candidates can expect to go through a 4 step interview process. The first interview will be a call to assess cultural fit and to make sure our goals are aligned.
If we think there is a good fit, you'll have a call with one of our project managers to learn more about your skills and attitudes toward teamwork. If it's clear that you'd be a good addition to the team, we’ll ask you to complete a technical task for which you will be compensated.
If your technical task displays a high level of quality and care we will set up a final interview with our CEO or CTO.
The process can take up to 3 weeks.
How to apply: https://goo.gl/forms/jpdRI1wD8pdfoqKl2
This job posting is no longer available
We're looking for someone who has: - At least 5 years of software engineering experience. - Significant experience writing Golang. - Built an open source framework for software development. - Significant open source software contributions. - Experience working in an agile development environment. - The ability to take ownership and see initiatives through. - Worked with and mentored junior engineers. - Exceptional communication skills. - Experience working with distributed teams.
What your primary responsibilities will be: - Improve the SDK codebase by committing DRY, well tested code. - Work with the SDK team to triage tickets and move the project forward. - Review pull requests and provide valuable feedback to members of the team and open source contributors. - Mentor junior engineers and support the growth and health of the team. - Help with developer adoption by supporting projects using the SDK. - Participate in developer discussion forums and work to improve the usability based on user feedback. - Promote the SDK by publishing blog posts and guides.
What we offer: - The opportunity to build the future of the internet. - An exciting role building open source software. - Flexible work schedule. - At least 4 weeks of paid vacation. - Very competitive salary, including equity.
About our application process:
Qualified candidates can expect to go through a 4 step interview process. The first interview will be a call to assess cultural fit and to make sure our goals are aligned.
If we think there is a good fit, you'll have a call with one of our project managers to learn more about your skills and attitudes toward teamwork. If it's clear that you'd be a good addition to the team, we’ll ask you to complete a technical task for which you will be compensated.
If your technical task displays a high level of quality and care we will set up a final interview with our CEO or CTO.
The process can take up to 3 weeks.
How to apply: To apply, please fill out this form: https://goo.gl/forms/jpdRI1wD8pdfoqKl2
This job posting is no longer available
WHO YOU ARE: - At least 5 years of programming experience. - Significant experience with Golang. - Extensive understanding of the Ethereum state machine, including the EVM, transaction structures, state mechanics, etc. - Experience with the go-ethereum or parity codebase. - Expertise in blockchain technologies. - Experience working in an agile environment. - The ability to take ownership and see initiatives through. - Worked with and mentored junior engineers. - Exceptional communication skills. - Experience working with distributed teams.
WHERE YOU ARE: - Berlin - San Francisco - Toronto
ROLES/RESPONSIBILITIES: - Develop, maintain, and extend Ethermint - the EVM implementation on Tendermint Core - Develop Plasma-style sidechains for Ethereum - Develop Cosmos-Ethereum peg zones - Contribute to go-ethereum to improve its modularity and usability as a library - Help formalize the specification of Ethermint and ensure the implementation adheres to the spec. - Mentor junior engineers and support the growth and health of the team. - Review pull requests and provide valuable feedback to members of the team and open source contributors.
WHAT WE OFFER: - The opportunity to build the future of the internet. - An exciting role building open source software. - Flexible work schedule. - Travel stipend for conferences and in person collaboration. - At least 4 weeks of paid vacation. - Very competitive salary, including equity.
ABOUT OUR APPLICATION PROCESS: Qualified candidates can expect to go through a 4 step interview process. The first interview will be a call to assess cultural fit and to make sure our goals are aligned.
If we think there is a good fit, you'll have a call with one of our project managers to learn more about your skills and attitudes toward teamwork. If it's clear that you'd be a good addition to the team, we’ll ask you to complete a technical task for which you will be compensated.
If your technical task displays a high level of quality and care we will set up a final interview with our CEO or CTO.
The process can take up to 3 weeks.
HOW TO APPLY: To apply, please fill out this form: https://goo.gl/forms/jpdRI1wD8pdfoqKl2
This job posting is no longer available
With Glassnode we are bringing transparency to the blockchain and cryptocurrency space. Glassnode builds applications that provide new ways of delivering crystal clear insights into blockchains and cryptocurrencies.
At its core, Glassnode is a data analytics tool that aggregates and visualizes a large number of different data sources. With a particular focus on blockchain data and user-centric interfaces, we aim at delivering intelligible, actionable and unique insights from the crypto world, helping investors to make educated decisions in the overly emotional and irrational market, as well as equipping blockchain teams with valuable insights on their projects and tokens.
The Role
We are searching for a driven and proactive backend engineer with a strong DevOps experience ready to contribute in taking the existing product to the next level. You would be expected to take over multiple DevOps tasks, contribute to the development of APIs, microservices, and new features, all in the context of a distributed system with a high load of data from blockchains and cryptocurrencies.
We would like to hear from you, if:
Your Choice
Joining the project, you embark on a challenging journey shaping the innovative product in a revolutionary sphere of blockchain and cryptocurrencies. You’ll have a chance to develop professionally and personally, work on unique and challenging problems of data collection, distributed systems, and high scalability.
What we offer