Java Software Engineer at Tiro Partners, Charing Cross, £575 per Day

Java / Microservices / API design / LLMs / AI / Claude Code / Copilot

Company: Financial Services

Location: London - Hybrid 3 days per week

Rate: £575

IR35: Outside

CORE BANKING AND TRADING SYSTEMS EXPERIENCE ESSENTIAL

Join a newly formed Service Modernisation & AI 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