Senior Software Engineer

Job in City, Vale of Glamorgan, EC1A2, Wales, UK

Listing for: Tiro Partners

Full Time position
Listed on 2026-01-14

Job specializations:

Software Development
AI Engineer, Machine Learning/ ML Engineer

Salary/Wage Range or Industry Benchmark: 80000 - 120000 GBP Yearly GBP 80000.00 120000.00 YEAR

Location: City

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, Git Hub 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

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