Senior Java Engineer (Contract) – Fintech Platform (Hybrid)

Company: Explore Group
Apply for the Senior Java Engineer (Contract) – Fintech Platform (Hybrid)
Location: London
Job Description:

Explore Group in London is seeking a Senior Java Engineer on a contract basis to help build a greenfield fintech platform. You will design and implement low-latency, high-throughput microservices with Java 21+ and Spring Boot, owning features from architecture to production.

You will partner with product and risk teams to deliver resilient event-driven systems (Kafka/RabbitMQ) and champion TDD, automated CI/CD, and rigorous code reviews.

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Posted: September 14th, 2026