Team Extension Company Profile

Full-Stack Developer

Team Extension

Job Description


Our client is an innovative applications development company, focussed on distributed ledger and confidential computing technologies. Based at Level39, Europe’s largest Fintech accelerator in London’s Canary Wharf and in Porto, Portugal, the client has an expert team of developers creating cutting-edge solutions for disruptive startups and corporate clients in banking and finance, energy, aviation, automotive, shipping, telecommunications and social impact sectors. Our clients already include Shell (also an investor in the company), KLM, Lloyds Register, Toyota, United Nations and we’re advising the UK Government.

We are building a new generation of decentralised and confidential solutions, working through some of the most interesting technical problems in this field such as identity management, transaction anonymity, encryption, cryptography and data security.


What you’ll be doing

  • Build Node.js backend and React.js frontend and connect them using JSON REST API’s.
  • Develop cutting-edge software solutions for startup and corporate clients.
  • Develop decentralized applications.
  • Work alongside other developers in the team to create secure, performant, resilient business applications.
  • Engage with clients to understand their product business proposition.
  • Create automated tests.
  • Peer code review.
  • Configure deployments using Docker and Kubernetes.
  • Take responsibility for features you deploy into staging and enterprise production environments.


  • 5+ years of professional experience in backend and/or full stack development with a major programming language (vanilla JS, python, golang, ruby, java, rust, c#, c++, php, c) of which at least 1.5 years in Node.js (mandatory).
  • Strong experience and knowledge of Design and Architectural patterns.
  • Strong communication skills.
  • Knowledge of PostgreSQL.
  • React.js.
  • Bachelor's Degree (nice to have).
  • DevOps, Docker, Kubernetes (nice to have).