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# C++ Engineer - Low Latency Market Data (Greenfield team)

- **Company:** Selby Jennings
- **Location:** London, UK
- **Salary:** £95,962.0
- **Contract:** Permanent contract
- **Skills:** Algorithmic Trading, C++ (Programming Language), Profiling, Microarchitecture, Information Engineering, Linux Kernel, Remote Direct Memory Access, Systems Architecture, Low Latency, Data Pipelines
- **Published:** September 2, 2026
- **Apply:** https://www.adzuna.co.uk/jobs/details/5864671126

## About the Role

* Professional experience writing C++23 in production trading systems
 * Kernel-bypass networking (e.g. DPDK, Solarflare/Onload, RDMA)
 * 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.

## Description

* Design and implement ultra-low-latency market-data pipelines from exchange feed-handler to downstream consumers
 * 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


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