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Senior Backend Engineer

RainTech
WFA
Full-time
1 opening

How you will be assessed

  • RainTech approves a written scoring rubric for this role before any application is read.
  • Every applicant is scored against that same rubric, with written reasoning recorded for each criterion.
  • Scores rank and explain — they do not decide. A person at RainTech chooses who advances, and no application is rejected automatically.

Interested in this role?

Submit your application to RainTech.

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About the role
  • Design, build, and maintain scalable backend services using modern technologies.
  • Develop reliable, high-performance systems with a strong focus on data consistency and scalability.
  • Build resilient APIs and backend services for production environments.
  • Collaborate with an international engineering team to deliver robust software solutions.
  • Improve system reliability, performance, and maintainability.
  • Take ownership of backend architecture and contribute to technical decisions.
Requirements
  • 5+ years of experience building and maintaining production backend systems.
  • Strong proficiency in TypeScript and PostgreSQL, especially handling concurrency and transactional consistency.
  • Experience working in the banking or fintech industry is highly preferred.
  • Strong understanding of distributed systems, reliability, and failure scenarios.
  • Good English communication skills, both written and spoken.

Nice to have:
Experience in Web3 or blockchain-based applications.