Backend Software Engineer (Remote, UK)
2 days ago
Bury
About Esenda Esenda powers over £1.5bn of inbound and outbound payments annually, in the education space - from tuition and catering fees to supplier payments and payroll. We’re a revenue-generating startup with strong product-market fit, and we’re growing fast. Join us now and you’ll work on impactful features that directly shape our platform and make a real difference to our customers. What you’ll do • Design, build, and ship reliable backend services and APIs in Python (Flask) that power core product functionality., • Own features end-to-end: data modelling (Postgres), API design, testing, production rollout and ongoing improvements., • Help uphold strong engineering standards through thoughtful code reviews, testing discipline, clean architecture, and pragmatic decision-making., • Improve service reliability and operability: monitoring, alerting, logging, runbooks, and reducing on-call toil over time., • Work closely with the technical team to scope product ideas, focused on delivering customer-facing outcomes (not just “tickets”)., • Contribute to delivery practices: CI/CD improvements, incremental shipping, and maintaining a high-quality codebase., • You’ll join an on-call rotation (1 week in 4) compensation: paid as an extra £300 per on-call week. What we’re looking for • 5+ years experience building and operating production backend systems., • Strong experience with Python, and hands-on use of Flask (or similar frameworks)., • Solid understanding of Postgres (schemas, migrations, query performance, transactions)., • Experience designing and maintaining APIs (REST; event-driven experience is a plus)., • Comfortable shipping in cloud environments—ideally AWS—and working with modern CI/CD pipelines., • A strong quality mindset: you care about maintainability, security, reliability, and clear documentation. Bonus points for • Payments/fintech knowledge (reconciliation, idempotency, auditability, ledger concepts)., • Experience with distributed systems patterns (queues, background jobs, retries, rate limiting)., • Security experience (threat modelling, OWASP-style concerns, secure API design)., • Familiarity with Terraform. Why join us? • £60k salary + equity, • 40 days holiday (incl. bank holidays), • Pension scheme (3% employer contribution), • Fully remote, UK-based, with 3 in-person meetups per year, • A transparent, collaborative, and supportive culture Our stack (today) • Backend: Python, Flask, • Data: Postgres, • Cloud: AWS, • Edge: Cloudflare, • Infrastructure as Code: Terraform, • Delivery: CI/CD, automated testing, observability tooling How we work • Pragmatic, high-ownership teams with a bias to shipping, • Clear communication, strong collaboration, and continuous improvement, • Code reviews and sensible standards that keep quality high without slowing delivery Interview process • 30-min intro call (role fit, values, ways of working), • Practical exercise (small take-home or pairing session), • Technical interview (backend fundamentals, API design, production thinking), • Team chat + Q&A