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High-Performance Java Developer - JVM Tuning & Low-Latency Systems | London (Hybrid Contract)

SKILLFINDER INTERNATIONALEngland🇬🇧United Kingdom

Quick overview

SeniorityMid Senior
Employment typeTemporary/Casual
Work modeHybrid
LocationEngland, United Kingdom
JavaLinux

Job description

Java | JVM Tuning | Low Latency | Concurrency | High-Performance Systems

Are you an experienced Java Developer with deep expertise in JVM tuning, low-latency systems and high-performance engineering?

Skillfinder International is recruiting for an exciting contract opportunity within a major financial services environment, working on complex, performance-critical systems supporting projects across EMEA and the US.

This is an opportunity to tackle challenging engineering problems, optimise system performance and work with cutting-edge Java technologies in a demanding, high-throughput environment.

What you'll be doing

  • Designing and developing high-performance, low-latency Java applications.

  • Optimising JVM performance, garbage collection and memory management.

  • Building event-driven and reactive systems handling high-frequency workloads.

  • Working with concurrency, networking protocols and Linux internals.

  • Collaborating with international engineering teams on business-critical initiatives.

Essential skills

  • Java performance engineering and advanced JVM tuning.

  • Strong knowledge of data structures, algorithms and concurrency.

  • Experience building low-latency, high-throughput systems.

  • Expertise in GC, JNI, Java Unsafe or JNR-FFI.

  • Understanding of CPU architecture, shared memory, memory-mapped files and TCP/UDP networking.

Nice to have

  • Experience with Aeron messaging technology.

  • Previous experience in financial services or trading environments.

Why consider this opportunity?

  • Hybrid working in London.

  • Technically challenging, performance-critical engineering.

  • Exposure to international projects across EMEA and the US.

  • Opportunity to work with specialist engineers on complex distributed systems.

Interested?

Apply now or contact Skillfinder International for a confidential discussion. Our specialist technology recruitment team understands the financial services market and can help you explore your next contract opportunity.

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