Senior Software Engineer in London

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Job Description
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
If you are interested in applying for this job please press the Apply Button and follow the application process. Energy Jobline wishes you the very best of luck in your next career move.
Apply
Location:
London
Job Type:
FullTime
Category:
Engineer, Software Engineer, Senior, Engineering, Software

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