Low-Latency Java Engineer for High-Performance Systems

DCV Technologies; Greater London; Hybrid; GBP 90,000 - 140,000; Full time

Job summary

DCV Technologies in London, UK (Hybrid-2/3 days from office) is seeking a Java Low Latency Engineer for a long-term contract. You will optimize Java performance, tune the JVM, and build high-frequency, event-driven systems designed for low latency.

Ideal candidates have strong multithreading, data structures knowledge, and familiarity with Linux internals. Nice-to-haves include Aeron and experience in trading or other performance-critical domains.

Qualifications

• Proven expertise in Java performance optimization and JVM tuning.
• Strong understanding of low-latency, event-driven design.
• Experience with multithreading, memory management and Linux perf.

Skills

Core Java proficiency

JVM tuning

Multithreading

Data Structures & Algorithms

GC & memory management

Networking (TCP/UDP)

Linux performance

Low-latency systems

C/C++ interop (JNI/Unsafe)

Aeron (nice to have)

Job description

DCV Technologies in London, UK (Hybrid-2/3 days from office) is seeking a Java Low Latency Engineer for a long-term contract. You will optimize Java performance, tune the JVM, and build high-frequency, event-driven systems designed for low latency.

Ideal candidates have strong multithreading, data structures knowledge, and familiarity with Linux internals. Nice-to-haves include Aeron and experience in trading or other performance-critical domains.