Senior Java Engineer – Hedge Fund- Contract Outside IR35

Overview

In this role you will contribute to a high-performance, distributed Java platform used for real-time data ingestion into a portfolio management system. You’ll help build and evolve a new risk engine for a leading systematic hedge fund, emphasizing scalability and low latency. You will work in a relaxed, open environment and collaborate with technologists at the sharp end of finance-tech. This is an opportunity to shape critical infrastructure and data platforms in a finance setting, with potential for significant impact and rewards.

Responsibilities

• Develop and maintain a large distributed Java system handling real-time data feeds
• Contribute to building a new risk engine for systematic trading clients
• Work on data platform expansion from scratch with financial domain support
• Optimize for latency, throughput, and robustness in a high-volume environment
• Collaborate with cross-functional teams to align technology with business goals
• Ensure reliability and performance in a capital-intensive trading setup

Key requirements

• 10+ years of commercial development experience
• Strong, demonstrable low-level Java experience (Java 8+)
• Proficiency with sockets and ByteBuffers
• Strong database skills
• Experience with messaging and code generation
• Understanding of computing fundamentals, OOP, threading, concurrency, and distributed systems
• 2:1 Computer Science degree from a UK or EU university
• Familiarity with distributed systems, latency considerations, and scalable architectures

• Java (low-level), Java 8+
• Sockets
• ByteBuffers
• Database systems
• Messaging
• Code generation