Bjak - Senior Backend Engineer, Platform & Integrations

• Strong backend development in Node.js / TypeScript (or very close equivalent, e.g. willing/able to work in it) • Experience in relational database (PostgreSQL or similar) or non relational database (MongoDB or similar) — not just querying, but designing the schema • Experience integrating with third-party APIs, especially handling timeouts, retries, and partial failures gracefully • Experience with cloud infrastructure (AWS, GCP, or Azure) and CI/CD pipelines • Comfortable working with sensitive customer data and security best practices (encryption, access control) • Strong nice-to-haves • Experience in fintech, insurtech, or another regulated industry • Experience building a "plugin" or "adapter" style system that needs to support many different external integrations over time • Experience with Redis or similar for session/cache management • Location • Location • This role is remote, but candidates must be based in UK. We are hiring specifically for this market, so applicants should already be based in UK. • Language • Language • English is our main working language across global teams. Strong English communication is required.