Backend Engineer (High-Performance Systems)

Backend Engineer (High-Performance Systems)

London |

£80K–£120K + Equity (DOE)

Traditional financial markets are broken. Our client is rebuilding them from the ground up.

They’re a well-funded, early-stage fintech building next-generation infrastructure for global trading markets — enabling always-on, high-performance systems that challenge the status quo of traditional exchanges.

Backed by leading global investors and founded by top-tier quantitative engineers, this is an opportunity to work on deeply technical problems with real-world impact.

The Role

  • You’ll design and build ultra-reliable, low-latency backend systems powering real-time trading infrastructure.
  • Build fault-tolerant, high-performance services with strict latency requirements
  • Own system reliability, scalability, and performance (p99 matters)
  • Implement robust testing frameworks (CI/CD, load testing, chaos engineering)
  • Influence architecture, tooling, and engineering standards
  • Collaborate with a small, elite team to ship fast and iterate rapidly

What We’re Looking For

  • Strong STEM degree from a top-tier university (e.g. Oxbridge / Imperial / equivalent globally)
  • 3+ years experience in high-performance or real-time systems (e.g. trading, HFT, distributed systems)
  • Proficiency in a systems-level language (Rust, C, C++)
  • Strong understanding of performance optimisation, concurrency, and system design
  • High ownership mindset — able to make fast, high-quality decisions

Nice to have

  • Experience in fintech, trading systems, or low-latency environments
  • Exposure to Python and data tooling (NumPy, Pandas)
  • Experience with Kubernetes or infrastructure-as-code

Job Details

Company
Cornucopia IT Resourcing
Location
City of London, London, United Kingdom
Posted