HFT Developer

Job description

The Company

A high-performance proprietary trading firm operating across global digital asset markets. The business has been profitable since inception and runs a lean, engineering-led team focused on building and optimising low-latency trading systems.

They operate with a flat structure, minimal bureaucracy, and a strong emphasis on technical excellence and ownership.

The Role

You will join a small, highly technical team building and optimising real-time trading systems.

This is a hands-on C++ role focused on:

• Real-time market data processing
• High-throughput, low-latency systems
• Trading infrastructure and execution pipelines
• Performance optimisation across distributed systems

What You’ll Do

• Design and build high-performance C++ systems
• Optimise latency, throughput, and system efficiency
• Work on real-time data pipelines and execution logic
• Collaborate closely with engineers and trading teams
• Contribute to system architecture and scalability decisions

What You’ll Need

• Strong C++ experience (modern C++ preferred)
• Low-latency or HFT exposure
• Experience working on performance-critical or real-time systems
• Strong understanding of:
• Concurrency / multithreading
• Memory management
• Data structures and algorithms
• Linux environment experience
• Strong problem-solving ability

Nice to Have

• Trading / financial markets experience
• Python or scripting experience
• Distributed systems experience

Why Join

• Work on real-time, production trading systems
• High ownership in a small, technical team
• Remote-first across Europe
• Fast-moving environment with direct impact on performance and outcomes

Summary

A strong opportunity for a C++ engineer looking to work on complex, performance-critical systems in a trading environment, with high ownership and direct impact.

Contact Ciara Clarke at Harrington Starr for a confidential discussion on this role.

Extra information

Status

Open

Education Level

Secondary School

Location

United Kingdom

Type of Contract

Full-time jobs

Published at

03-04-2026

Profession type

Accountancy

Full UK/EU driving license preferred

No

Car Preferred

No

Must be eligible to work in the EU

No

Cover Letter Required

No

Languages

English