Principal Java/ Kotlin Engineer (London Area)

Java/ Kotlin Engineer - Contract

Outside IR35

London

2 days per week in London preferred but flexible

We're after an experienced Java/ Kotlin engineer on a contract basis (outside IR35) who wants to solve hard technical problems, with experience in building data-intensive, high-throughput systems. This is a small, high-impact team working on a central data store supporting mission-critical platforms at a global scale.

What you'll do:

• Design and build highly concurrent, data-intensive systems.
• Work on distributed architectures, optimising for low latency and high throughput.
• Leverage big data technologies like Redis, distributed caches, and modern data stores (e.g., Couchbase, Cassandra).
• Solve challenging engineering problems at scale, ensuring reliability and performance under heavy load.

What you'll need:

• Strong Kotlin or Java experience (Kotlin preferred).
• Background in data architectures and large-scale systems.
• Experience with relational databases (Oracle a plus, but not essential).
• Knowledge of distributed systems and scalable data architectures.
• Banking/ finance - preferred but not essential, if not must have experience working in enterprise environments with good tenures on critical projects

This is an exciting and absolutely mission-critical project for a tier one financial player - if you're available for a contract and looking to solve hard technical problems and have experience with the technologies above, apply now for a fast turnaround.