Java Developer

We're hiring a

Senior Software Engineer

to join a technology team building and supporting a

mission-critical securities trade processing platform

used to handle high volumes of financial transactions.

You'll work on distributed Java systems where

performance, reliability and low latency

matter — from designing new services to troubleshooting complex production issues.

What you'll do

Build and enhance high-performance

Java applications and distributed services

Develop event-driven systems using

Kafka, JMS or similar

Work on concurrency, messaging, fault tolerance and high-throughput processing

Profile and optimise applications across

JVM, memory, CPU and threads

Investigate production issues, perform RCA and deliver lasting fixes

Use SQL to troubleshoot data discrepancies across distributed systems

Build automated integration and end-to-end testing

Work with product, architecture and platform teams on system improvements

Support platform modernisation while maintaining production stability

Use AI-assisted engineering tools to improve development and operational efficiency

What we're looking for

5+ years of hands-on Java engineering experience

Strong Core Java,

multithreading/concurrency and JVM internals

Experience with

high-throughput, low-latency distributed systems

Strong understanding of messaging concepts including ordering, idempotency, retries and failure recovery

Hands-on performance profiling and optimisation experience

Strong

SQL

skills

Experience with automated integration/E2E testing

Production support, incident management and RCA experience

Familiarity with AI-assisted software engineering tools

Bachelor's degree in Computer Science, Software Engineering or a related field

Nice to have

Experience in

capital markets/securities trading

, Snowflake, Prometheus/Grafana/Elasticsearch, Maven or Gradle, state-machine workflows, or modernising legacy enterprise platforms.

If you enjoy solving

complex distributed systems problems

and want to work on software where reliability and performance genuinely matter, we'd love to hear from you.