Contract Java Developer

Contract Senior Java Data Engineer

London or Birmingham

12‑Month Contract

£500–£600 per day

Outside IR35

Opus is partnered with a major financial services organisation to build out a high‑performing engineering squad focused on distributed data processing and large‑scale workflow modernisation.

This role sits at the intersection of Java engineering, distributed data, and cloud-native pipelines ideal for someone who comes from a JVM engineering background and has expanded into Spark, AWS Glue, or large‑scale data processing.

You'll help re‑platform existing workflows, optimise framework performance, and build new services that feed critical reporting pipelines used across the business.

What You'll Be Doing

Building and enhancing Java‑based data services and distributed processing components

Re‑engineering legacy pipelines into scalable AWS/Spark workloads

Upgrading the framework for several business‑critical reporting workflows

Collaborating with platform, controls, and internal engineering teams to define patterns and standards

Leading delivery on individual workstreams

Tech Environment

Java (Core Java, multithreading, distributed systems)

Apache Spark

AWS (Glue, S3, Lambda, Step Functions)

Snowflake

CI/CD & production monitoring in a large enterprise environment

What We're Looking For

Strong Java engineering background

Experience building distributed data or event‑driven systems

Hands‑on with Spark or other large‑scale data processing frameworks

Exposure to AWS Glue / serverless data tooling

Experience modernising or upgrading pipelines/workflows

Comfortable working in enterprise‑scale engineering squads

If you are interested, please click apply