Senior Java & React Developer – Modern Stack | €400/day Remote EU + Luxembourg Onsite (1 week/month)
Are you a seasoned Java Developer with a passion for modern tech and flexible working? We’re looking for a contractor with strong Java and React experience to support the development of key trading interface systems within a highly regulated financial environment.
Join a forward-thinking project running through to April, with a tech stack that includes Java 17, Spring Boot 3, ReactJS, REST APIs, Kafka, and Azure DevOps.
What you’ll do:
Design and implement new UI features in React
Connect the frontend with both REST APIs and Kafka-based endpoints
Write and run behavioural test cases to meet strict pre‑trade compliance rules
Align regularly with business teams to refine requirements
Contribute to repeatable, automated setups and robust documentation
What we’re looking for:
10+ years of Java development experience in corporate environments
Solid experience with Agile, CI/CD, and DevSecOps practices
Comfortable with REST, Kafka, and UI‑backend integration
Strong English skills and a Master’s in STEM (or equivalent professional experience)
Nice to have:
Java 17, Spring Boot 3, ReactJS, Azure DevOps, relational databases
Contract Details:
Up to 200 person‑days until April
Remote from within the EU with 1 week/month onsite in Luxembourg
€400/day for remote; onsite full‑time rate negotiable
You’ll be working with a highly skilled team on a project that demands precision, modern engineering practices, and collaboration.
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