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# Senior Software Engineer

- **Company:** Simon James IT Ltd
- **Location:** Bristol, UK
- **Experience:** Expert
- **Salary:** £60,000.0 - £70,000.0
- **Contract:** Permanent contract
- **Skills:** Clean Code Principles, Java (Programming Language), JavaScript (Programming Language), PHP (Programming Language), Application Programming Interfaces (APIs), Amazon Web Services, Automation of Tests, Cloud Computing, Code Review, Continuous Integration, Distributed Systems, Systems Development Life Cycle, TypeScript, Web Content Accessibility Guidelines, ReactJS, Backend, Graphql, React Native, Microservices
- **Published:** September 18, 2026
- **Apply:** https://www.adzuna.co.uk/jobs/details/5888369148

## About the Role

* Commercial experience with TypeScript and React
 * Solid HTML/CSS/JavaScript
 * 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.

## 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


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