C++ Trading Platform Developer

Radley James; Greater London; Hybrid; GBP 90,000 - 140,000; Full time

Benefits offered by this job

Visa sponsorship

Relocation support

Hybrid work model

Job summary

Radley James is aiding a London-based crypto-native trading firm in hiring a C++ Trading Platform Developer to join its fast-paced engineering team. The role centers on building a low-latency, cross-exchange platform on Linux, with ownership from day one and direct exposure to traders and senior technical leadership.

You'll work on order entry, connectivity, and core infrastructure performance, using C++ and Python to deliver scalable, reliable systems.

Qualifications

• Strong C++ skills with performance focus.
• Experience building client-server network applications.
• Understanding of data structures and algorithms.
• Curiosity about how the standard library and systems work under the hood.

Responsibilities

• Develop and scale a global low-latency trading platform on Linux.
• Build robust networking and monitoring systems for multiple exchanges.
• Improve scalability and performance of core infrastructure.
• Collaborate with traders and senior technical leadership from day one.

Skills

C++ programming

Python programming

Low-latency

Networking

Data structures

Algorithms

Problem solving

CPU architecture

Tools

Linux

Job description

A leading crypto-native algorithmic trading firm is looking for a C++ Trading Platform Developer to join its London-based team.

This is an opportunity to work at the intersection of high-performance engineering and digital asset markets, building and scaling a global trading platform that operates across dozens of exchanges worldwide. The environment combines the technical standards of top-tier high-frequency trading firms with the pace and ownership of a technology start-up.

You’ll work on a global, low-latency trading platform spanning multiple continents, covering:

• Order entry and connectivity across numerous exchanges
• Robust networking and monitoring systems
• Scaling and performance optimisation of core infrastructure

The tech stack is primarily C++ and Python, running on Linux across both development and production. The focus is on writing clean, scalable, high-performance code and continuously improving system reliability and speed.

This is a hands-on engineering role with direct exposure to traders and senior technical leadership. You’ll be given meaningful ownership from day one and the freedom to shape your impact.

What We’re Looking For

• Strong C++ skills (assessment will form part of the process)
• Deep understanding of data structures and performance optimisation
• Experience building client-server network applications
• Curiosity to understand how C++ standard libraries and systems work “under the hood”
• Strong analytical and problem-solving ability
• Knowledge of networking, CPU architecture, memory models, or assembly
• Interest in algorithmic or quantitative trading

Why Apply?

• Work on genuinely high-performance, real-time trading systems
• Significant ownership and responsibility early on
• Flat structure with direct access to senior leadership
• No legacy tech, no unnecessary bureaucracy
• Performance-based compensation with strong earning potential
• Central London office with flexible working arrangements (hybrid)
• Visa sponsorship and relocation support available

If you’re passionate about low-level systems, high-performance C++, and building robust trading infrastructure from the ground up, this is a rare opportunity to make a direct impact in a fast-moving market.