Senior Core Java Engineer – Low-Latency Trading 💹
📍 Location: City of London (3 days onsite)
Build ultra-low latency systems at the heart of global FX trading!
This is an opportunity for a Senior Core Java Engineer to join a leading Asian FX trading firm as they continue to scale their London engineering team. You’ll play a key role in designing and optimising high-performance trading systems where speed, precision and reliability are critical.
If you enjoy working close to the metal, solving complex performance challenges and operating in a fast-paced financial environment, this is the role for you.
🚀 What you’ll be doing
* Design, build and optimise low-latency, high-throughput Core Java trading systems
* Own and drive performance improvements across critical components
* Contribute to the architecture and evolution of a world-class FX trading platform processing billions of messages per day
* Mentor engineers and promote best practices around testing, code quality and performanceOperate within modern engineering practices including CI/CD, TDD, and Agile
Core Java (no frameworks), multithreading, concurrency, low-latency optimisation, AWS/GCP, Docker, Kubernetes, CI/CD, TDD, Agile.
✅ What they’re looking for
* Strong commercial experience in Core Java development (framework-light / no Spring environments preferred)
* Deep understanding of multithreading and concurrency
* Experience building or optimising low-latency or high-performance systems
* Background working in high-throughput, distributed environments
* Comfortable working in cloud-based infrastructure (AWS or GCP)
* Strong engineering fundamentals and a senior-level mindset (ownership, mentoring, architectural input)
* Interest in financial markets or trading systems (experience in finance is a plus, not essential)
➡️Work on systems where milliseconds matter
➡️High-impact role with real ownership and technical influence
➡️Join a growing London team within a globally established trading firm
➡️Competitive compensation with strong bonus potential
Interested? Apply now or get in touch for a confidential conversation.
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