Trading System Architect (London)

Job Description

Trading System Engineer / Architect

We're working with a leading European private bank that's investing heavily in modernising its equity trading systems. We're looking for a Trading System Engineer / Architect to play a central role in that transformation.

This is a greenfield build of a new electronic execution platform that will support high-volume global equity trading. It's a hands-on architecture role focused on building reliable, high-performance systems that can handle scale and operate with minimal downtime.

What you'll be working on:

• Building a new low-latency trading system from scratch
• Designing pre- and post-trade risk engines, market data and reference data infrastructure, and trading gateways
• Ensuring the platform delivers 24/5 uptime and can scale dynamically during major market events
• Collaborating with traders, engineers, and stakeholders across multiple desks
• Deploying onto a bare-metal Kubernetes infrastructure (not cloud-based)

What we're looking for:

• 5+ years of experience in software engineering, ideally with Java and real-time trading systems
• Strong background in low-latency architecture, microservices, and performance tuning
• Experience with OMS or EMS platforms, and integrating market/reference data systems
• Proficiency with containerisation and Kubernetes; bonus if you've used Go or Rust
• Someone collaborative, technically sharp, and excited about building clean systems that scale

The role is full-time, on-site in the City of London, benefits include 10% pension, private healthcare, 30 days holiday, flexible hours, and many more.