Senior Python​/Java Engineer - Backend

Build cloud-native, AI-driven platforms within a tier-one financial services environment.

We're working with a global financial institution on a large-scale engineering programme and are looking for a Senior Java / Python Engineer to deliver high-impact backend systems on AWS, with exposure to modern AI and LLM-based solutions.

• Annual Salary up to £70,000 - £78,000 per annum (DOE)
• 12-month contract - Inside IR35 - PAYE
• 5 days on-site, Central London
• Enterprise-scale systems and long-term programme work

• Designing and building backend services using Java and/or Python
• Delivering cloud-native applications in AWS environments
• Working with AI/ML solutions, including LLM inference and RAG-based semantic search
• Owning the full SDLC: system design, development, testing, deployment, and operational stability

• Strong commercial experience with Java and/or Python
• Hands-on experience delivering systems on AWS
• Solid understanding of cloud-native and distributed architectures
  
  Exposure to AI/ML platforms, ideally LLM-based solutions (e.g. RAG, OpenAI, Claude)
• Experience working in regulated or enterprise environments

Apply now for immediate consideration. For a confidential discussion, feel free to get in touch.