Senior Java Developer - High-Performance Trading Systems

Java Developer – High-Performance Trading Systems - Fully Remote - up to £100k base

About the Company

We’re a fast-growing proprietary trading firm operating across multiple global cryptocurrency exchanges. Founded by a team with deep experience in financial markets and algorithmic trading, we’ve already achieved top-tier market-maker status, handling trading volumes exceeding $100M per month — all within our first six months of operation.

About the Role

We’re looking for a talented Java Developer to join our small, high-performing engineering team. You’ll play a key role in expanding our trading infrastructure, integrating new exchanges, and building scalable, low-latency systems that power our trading strategies. This is an opportunity to work on cutting-edge systems in a start-up environment where your work has a direct and measurable impact.

Key Responsibilities

• Develop and maintain high-performance backend services in Java
• Deploy code to production frequently in a fast-paced, agile environment
• Build scalable, event-driven systems handling large volumes of real-time data
• Take ownership of your code — from design through deployment and ongoing support
• Contribute to continuous improvement of engineering standards and practices

Qualifications & Experience

• Degree in a STEM subject or equivalent hands-on experience
• 2+ years of Java programming experience
• Experience with message-passing technologies (e.g., Aeron, SBE)
• Strong understanding of event-driven and microservice architectures
• Exposure to large-scale distributed systems and high-throughput environments
• Passion for clean, maintainable code and solid engineering principles

Why Join Us?

• Work with a technically elite team in a growing trading business
• Have real influence on the technology direction and company growth
• Gain hands-on exposure to cutting-edge systems and crypto market-making