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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
Your profile
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.
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
Your profile
Requirements
Nice to Have
What we’re offering
If we’ve got you interested, apply now to learn more about Blocksize Capital and the role!
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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 (f/m/*)
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 the process of further developing our systems and implementing new projects, we are looking for software engineers that meet the following criteria:
We know you are in high demand. Here is why we are different and why you will love working for us:
We will be happy to tell you more about this in a personal chat.
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
Minimum qualifications
Preferred qualifications
Benefits
radio.net is an established startup with millions of users worldwide. For 10 years we have been the most successful radio app and website and now on the way to become the best podcast player. For this we need developers who want to find our product and our goals cool and want to move things in a great team.
You'll get a steep learning curve in our backend team with 4 senior developers. We work with agile methods and modern, automated release processes and a good work-life balance.
The day-to-day tasks mainly include designing new features, developing in Go, and integrating with our deployment pipeline with gilab and AWS CloudFormation. Your loyal fans are the front-end teams who are looking forward to any new or improved API endpoint.
We work according to the principle "you build it you run it". As we host on AWS, basically automating everything with CloudFormation and testing our releases very well, fortunately rarely gives a real problem and thus quiet nights.
You already have at least 2 years experience in software development with Java or Go and you are ready to develop yourself and your skills steadily. You've learned and sometimes used common best practices, design patterns and testing approaches.
Does that sound like a suitable challenge for you? Apply now via email to jobs@radio.net or directly via Stackoverflow and we will make a phone call in the next step.
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:
Skills & requirements
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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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:
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:
We will be happy to tell you more about this in a personal chat :)
Based in the center of Kiel we create strategy games, which are played by nearly one million users per month. In doing so, we attach great importance to friendly cooperation, strive for personal development and have the determination to bring things to a conclusion. We are always on the lookout for talents who share these qualities and our love for games and technology.
YOUR ROLE AS A BACKEND DEVELOPER
Our Backend Engineering team is responsible for providing the tools and services we use to build, scale and operate all our games. Through your work, you contribute significantly to the success story of our studio.
YOUR TASKS IN DETAIL
YOUR PROFILE
THAT'S WHY YOU WANT TO JOIN OUR TEAM As industry veterans, we have been on the market since 2005. Since then, we have continued to evolve and offer you a secure job in a friendly and experienced team.m. Who feels well can do great things. Our studio is a pleasant and creativity promoting place, equipped with top work equipment and room for a breather. Life does not stick to schedules. Therefore, we offer flexible working hours and unlimited holidays. We reward the services of our employees through profit sharing.
Do you want to become a part of our team? We look forward to receiving your application (including CV, references and salary expectations).
Please send your application by e-mail to jobs@sealmedia.de.
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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.
This job posting is no longer available
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.