C++ Engineer – Low Latency Market Data (Greenfield team)

Company: Selby Jennings
Apply for the C++ Engineer – Low Latency Market Data (Greenfield team)
Location: London
Job Description:

We’re partnering with a top-tier quantitative trading firm operating market-making strategies across global electronic venues. The team is building a greenfield tick-data and market-data platform optimised for deterministic latency and extreme throughput.

Role

  • Hands-on development in modern C++23 on performance-critical hot paths
  • Exchange connectivity, feed normalisation, sequencing, and recovery logic
  • Deep involvement in latency profiling, optimisation, and systems architecture
  • Close work with low-latency engineers and quantitative teams

Requirements

  • Professional experience writing C++23 in production trading systems
  • Strong background in low-latency / high-performance systems
  • Solid understanding of Linux internals, CPU architecture, cache behaviour, memory layout, and profiling tools

Nice to have

  • Direct exposure to market data or HFT environments

If you’re passionate about microsecond-level optimisation and market-data engineering, apply for a confidential discussion.

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Posted: May 12th, 2026