Senior Software Engineer
Java / Microservices / API design / LLMs / AI / Claude Code / Copilot
Role: Senior Software Engineer
Company: Financial Services
Location: London - Hybrid 3 days per week
Salary: up to £120,000
Join a Service Modernisation team driving AI-first software development in financial services. This is a hands-on role modernising high-impact legacy services while building AI-powered engineering workflows.
What You'll Do
- Modernise critical legacy Java services using AI-driven analysis and refactoring
- Apply migration patterns (e.g. strangler fig) to deliver clean, modern APIs
- Ship improvements in fast cycles with measurable gains in performance and reliability
- Build AI-powered tooling, including MCP servers and AI-assisted CI/CD pipelines
- Demonstrate how AI transforms developer productivity and code quality
What We're Looking For
- 6+ years' backend engineering experience (Java)
- Proven experience modernising production systems at scale
- Hands-on use of AI development tools (e.g. Claude Code, GitHub Copilot, LLMs)
- Experience with MCP, AI automation, or agentic AI systems
- Strong understanding of microservices and API design
Java / Microservices / API design / LLMs / AI / Claude Code / Copilot