Back End Developer

Founding Back-End Engineer

£90,000+ and Equity options

London

Join a high-growth fintech startup transforming global markets

Our client is an early-stage, well-funded fintech venture building a next-generation trading platform that brings 24/7 access, advanced leverage, and cutting-edge performance to traditional financial assets. Backed by top-tier Silicon Valley investors, they’re reimagining how modern markets should operate — and they’re looking for a founding engineer to shape the core architecture from day one.

This is a rare chance to join a technical founding team with backgrounds in quant trading, HFT, and world-leading financial institutions. You’ll work on real-time systems where microseconds matter, write software that must never go down, and set the engineering standards that future hires will inherit.

If you want to build something truly category-defining — this is it.

What You’ll Need

• Proven experience with high-performance languages (Rust, C, C++)
• 3+ years working on real-time trading systems, exchanges, or HFT platforms
• Ideally a strong STEM degree from a top-ranked university (or equivalent academic excellence)

Bonus Points

• Fintech, exchange, or low-latency engineering experience
• Expertise with Rust
• Deep knowledge of Kubernetes, infrastructure-as-code, or distributed systems