https://jobs.co.uk/job/backend-engineer-oscar-technology--ad8ce102-a84d-497c-8655-d87b73d68b3c RSS feed for Backend Engineer at Oscar Technology. en-gb Thu, 01 Oct 2026 22:02:06 GMT https://jobs.co.uk/job/backend-engineer-oscar-technology--ad8ce102-a84d-497c-8655-d87b73d68b3c https://jobs.co.uk/job/backend-engineer-oscar-technology--ad8ce102-a84d-497c-8655-d87b73d68b3c Thu, 01 Oct 2026 11:53:24 GMT Location: London | Salary: 85000.00-85000.00 Annual | Type: Permanent | Backend Engineer Location: Kings Cross, London Salary: £85,000-105,000 Contract: Permanent Working pattern: In office 3 days a week A newly formed software venture backed by an established global investment-services business is hiring a Backend Engineer to build the platform its product runs on. You''ll design multi-tenant data and workflow services in Python and FastAPI and own the integration layer between a Java/Spring core and Python AI services. This is one of nine engineering hires across front-end and back-end. THE ROLE Investment professionals need APIs and workflows that respect permissions, keep an audit trail and fail safely when an AI result can''t be trusted. You''ll build the services behind that. Report to the Head of Engineering as part of the UK core team. Build multi-tenant data and workflow services, plus the integration layer between the Java/Spring core and the Python AI services. Ship through disciplined CI/CD alongside the India-based delivery organisation. Combine service design with the production constraints of demanding enterprise users. Join a nine-person engineering cohort being hired across front-end and back-end. WHAT YOU''LL BE DOING - SERVICES A... Permanent