Senior Backend Engineer

Career Renew is recruiting for one of its clients a Senior Backend Engineer – candidates need to be based in EMEA.


We are a passionate team on a mission to enable a fairer, more decentralized world. To do so, we are building a crucial piece of cross-chain infrastructure to enable multiple blockchains to co-exist and serve different needs. Apart from the tech, we care a lot about user experience and aim to make complex technologies accessible to everyone.


About the role


We are looking for a Senior Backend Engineer who will lead the design, development, and maintenance of our backend systems, ensuring they are robust, scalable, and secure. You’ll collaborate closely with cross-functional teams, including frontend developers, product managers, and designers, to deliver high-quality software solutions that drive our success. The position will report to our Backend Lead.

We are a small team, and every one of our engineers is expected to strongly contribute to Jumper’s success by coming up with independent ideas and solutions to complex challenges. The current team includes: a Senior Full-Stack, a Junior Frontend Engineer, a Product Designer, a Technical Product Manager and a Business Lead. In addition, one more Full-Stack Engineer will be added to the team soon. In the near future, we would also love to see one of the Sr. Engineers to evolve into an engineering lead position for our small team.


Current tech stack:


  • Node.js running TypeScript code in Docker containers
  • MongoDB and Redis for our data
  • ethers.js for communication with the blockchains
  • Github, Kubernetes, AWS and CloudFlare for our GitOps CD chain


What you’ll do


  • Leading and actively participating in the design, development, and maintenance of backend systems and APIs
  • Architecting and implementing scalable and robust backend solutions that can handle growing user loads and evolving business needs
  • Maintaining high coding standards, conduct code reviews, and ensuring best practices for code maintainability and readability
  • Identifying bottlenecks and optimizing code and algorithms to improve system performance
  • Implementing monitoring and debugging tools to proactively identify and resolve issues, ensuring high system availability
  • Developing and maintaining comprehensive test suites, including unit tests, integration tests, and end-to-end tests, to ensure the reliability of backend systems
  • Providing guidance and mentorship to junior developers, helping them grow their technical skills
  • Analyzing complex technical problems and propose effective solutions to address them
  • Documenting code, APIs, and technical processes to facilitate knowledge sharing within the team and support onboarding of new developers


Strong Typescript experience in a Senior Role

Document database and caching experience

Strong Communication skills

Located in EMEA region

Previously built a complex product as part of a team


  • Entitlement to a work computer (choice of equipment).
  • Unlimited remote days and flexible working hours.
  • Annual team off-sites (Thailand was a blast last year & Vietnam will be even blast-ier).
  • An annual 1000€ personal development budget once you have worked 6+ months (pro-rated the first year).
  • A one-time 1000€ remote budget to use on co-working, office setup, etc.
  • Initial equity allocations once you have worked 6+ months.

Go to posting –>

Add a Comment

Your email address will not be published. Required fields are marked *