Low-Latency Java Engineer | JVM Tuning & Reactive Systems

OneAPPS Consulting; Greater London; On-site; GBP 90,000 - 140,000; Full time

Benefits offered by this job

Aeron experience preferred

Job summary

OneAPPS Consulting in London is seeking a high-performance Java developer focused on JVM tuning for low-latency environments. You will optimize GC, design event-driven and reactive systems, and leverage low-level Java utilities such as Unsafe, JNI, and JNR-FFI to manage off-heap memory.

Strong data structures, algorithms, and understanding of CPU architecture, memory management, and Linux internals are essential. Experience with Aeron is highly desired.

Qualifications

• Advanced Java mastery with GC optimization and JVM tuning.

Responsibilities

Skills

Advanced Java

JVM Tuning

Data Structures and Algorithms

Event-driven and Reactive Systems

Concurrency

TCP/UDP Networking

CPU Architecture

Memory Management

Linux Internals

Tools

Java Unsafe

JNI

JNR-FFI

Job description

OneAPPS Consulting in London is seeking a high-performance Java developer focused on JVM tuning for low-latency environments. You will optimize GC, design event-driven and reactive systems, and leverage low-level Java utilities such as Unsafe, JNI, and JNR-FFI to manage off-heap memory.

Strong data structures, algorithms, and understanding of CPU architecture, memory management, and Linux internals are essential. Experience with Aeron is highly desired.