Senior Java / Python Engineer

Senior Java / Python Engineer – AI & Cloud Engineering

A leading global financial markets organisation is hiring a Senior Java / Python Engineer to join a high-impact Research Technology team building next-generation AI-enabled platforms across Asset & Wealth Management.

This is a genuinely strategic engineering role sitting at the intersection of:

• Cloud-native architecture

• AI / LLM engineering

• Quantitative research infrastructure

• Enterprise-scale software development

The environment is heavily engineering-led and suited to someone who enjoys solving complex distributed systems problems while helping shape the future direction of AI adoption within financial services.

Key Responsibilities:

• Design, build and optimise scalable cloud-native systems using Java, Python and AWS

• Develop production-grade AI workflows including RAG-based semantic search and LLM inference pipelines

• Work directly with OpenAI and Claude models in real-world enterprise applications

• Drive engineering decisions around architecture, scalability, resiliency and platform design

• Contribute across the full SDLC within a highly agile engineering environment

• Operate as a senior IC with strong ownership and technical influence across the wider engineering function

What They’re Looking For:

• Strong commercial experience in Java and/or Python engineering

• Deep understanding of distributed systems and cloud-native development

• Hands-on AWS experience in production environments

• Exposure to AI/ML engineering, LLM tooling, semantic search or retrieval systems

• Strong system design capability and ability to work autonomously

• Background within financial services, trading technology, research platforms or high-performance environments is advantageous

This is an opportunity to join a globally recognised engineering organisation investing heavily into AI capability and modern cloud infrastructure, with real technical ownership and long-term strategic impact.

Location: London

Onsite Working 5x days

Inside IR35 Up to £800

If relevant, feel free to message me directly for a confidential discussion.