Senior Software Engineer

Company: Simon James It
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Job Description:

Join the team behind end-to-end investment journeys — from pre-trade decision-making through to order placement and execution — at a Bristol-based investment platform trusted by over 2 million clients.

What you’ll be doing:

  • Develop, maintain and improve software across web, mobile and backend services
  • Build customer-facing experiences using React (and React Native where relevant)
  • Design and consume REST/GraphQL APIs
  • Write clean, secure, maintainable code and take part in code reviews
  • Contribute to cloud-native, distributed systems
  • Develop automated tests as part of the SDLC

What you’ll bring:

  • Commercial experience with TypeScript and React
  • REST and/or GraphQL API experience; understanding of cloud-native development and AWS testing frameworks and automated testing
  • CI/CD awareness; accessibility best practice (WCAG).

Nice to have:

  • React Native in production, PHP, Java, backend/API contribution, microservices, regulated-industry (financial services) experience.

Strong benefits package including discretionary bonus, pension up to 11%, private medical, income protection, 25+ days holiday, hybrid working.

Senior Software Engineer Bristol City, United Kingdom

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Posted: September 24th, 2026