Low-Latency Java Engineer – Real-Time Trading

Juxt Ltd.; Greater London; Hybrid; GBP 90,000 - 130,000; Full time

Job summary

Juxt Ltd. in London is seeking Java Developers to join a high-performance, low-latency trading and real-time data project for a major financial institution. You will write and tune Java frameworks, optimize throughput and latency, and apply event-driven microservice architectures.

You will work with peers to design robust, measurable software, dive deep into JVM and Linux performance, and help push systems that power global markets. Hybrid role with on-site work at Canary Wharf.

Qualifications

• Proven experience building or optimizing low-latency systems.
• Strong Java skills with deep JVM knowledge.
• Experience with multithreading and memory management.
• Experience with microservice architectures and event-driven systems.

Responsibilities

• Write and tune high-performance Java frameworks to reduce latency.
• Improve throughput and latency for critical, real-time data applications.
• Collaborate with engineers to design elegant, performance-focused solutions.

Skills

Java proficiency

JVM expertise

Low-latency experience

Performance tuning

Multithreading

Microservices

Linux familiarity

Clear communication

Tools

JMH

async-profiler

Flight Recorder

Job description

Juxt Ltd. in London is seeking Java Developers to join a high-performance, low-latency trading and real-time data project for a major financial institution. You will write and tune Java frameworks, optimize throughput and latency, and apply event-driven microservice architectures.

You will work with peers to design robust, measurable software, dive deep into JVM and Linux performance, and help push systems that power global markets. Hybrid role with on-site work at Canary Wharf.