Senior Java Software Engineer (Pricing API) - 5 days - London

My client is looking for a Senior Java Developer with 8 - 15 years experience to join the team 5 days a week in their London office. This is an opportunity to work on a mission critical pricing and promotions API that supports over 28 million UK customers weekly, across all platforms with global expansion ahead.

This role involves designing and scaling a high-performance, internet-facing API operating across distributed environments. If you enjoy solving complex engineering challenges and building resilient systems at scale, this could be a great fit.

What You'll Be Doing

• Designing and building scalable Back End systems using Java and the JVM ecosystem
• Developing clean, maintainable code from product requirements
• Applying TDD/BDD practices and modern engineering principles
• Building and maintaining cloud-native infrastructure
• Working on highly available distributed systems
• Troubleshooting production issues and driving root cause analysis
• Mentoring others and contributing to engineering best practices
• Exploring and introducing new tools and technologies

Tech Stack

Java | Vert.x | RxJava | Groovy Couchbase | Kafka Azure | Kubernetes | Terraform

GitHub Actions | CI/CD pipelines

• Strong experience with Java (8+)

• Hands-on expertise with cloud platforms (Azure, AWS, etc.)

• Experience with SQL and NoSQL databases

• Proven ability to build and scale distributed systems

• Understanding of Agile delivery methods

• Exposure to reactive programming

• Experience in eCommerce or search platforms

*Rates depend on experience and client requirements