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# C++ Software Engineer

- **Company:** Selby Jennings
- **Location:** London, UK
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** C++ (Programming Language), Data Structures, Linux, Software Engineering, System Programming, Low Latency, C++14
- **Published:** August 26, 2026
- **Apply:** https://www.collegerecruiter.com/job/2815167393-c-software-engineer

## About the Role

* Strong commercial experience with modern C++ (C++17/20/23 preferred)
 * Background in low-latency, distributed or high-performance systems
 * Excellent knowledge of Linux systems programming
 * Strong understanding of algorithms, data structures and software design
 * Experience working on real-time or mission-critical applications
 * Financial markets experience is a plus, but exceptional engineers from other highly performant environments will also be considered

## Description

A leading quantitative trading and market-making firm is seeking a Senior C++ Engineer to join a high-performance technology team responsible for building the systems that underpin global electronic trading operations.

This is an opportunity to work on performance-critical software where engineering is at the centre of the business. You'll be developing low-latency trading components, execution systems and core infrastructure that directly influence trading performance and business outcomes, with engineers given significant ownership and autonomy.

What You'll Be Doing

 * Designing and developing high-performance C++ applications
 * Building low-latency trading infrastructure and execution systems
 * Optimising systems for throughput, determinism and reliability
 * Working closely with traders, quantitative researchers and fellow engineers
 * Contributing to architecture, system design and technical direction
 * Solving complex engineering challenges in a real-time environment

What They're Looking For

 * Strong commercial experience with modern C++ (C++17/20/23 preferred)
 * Background in low-latency, distributed or high-performance systems
 * Excellent knowledge of Linux systems programming
 * Strong understanding of algorithms, data structures and software design
 * Experience working on real-time or mission-critical applications
 * Financial markets experience is a plus, but exceptional engineers from other highly performant environments will also be considered

Why Consider It?

 * Work on software that directly impacts trading performance
 * Join a highly technical, engineering-led environment
 * Significant ownership and autonomy from day one
 * Collaborative team with close exposure to decision makers
 * Competitive compensation structure with strong earning potential
 * Opportunity to work on some of the most challenging low-latency problems in the industry
 * Flat organisational structure where good ideas can have immediate impact


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