Senior Java Engineer

London / Hybrid (3 days per week in office)

Up to £100,000 + excellent benefits

James Adams is working with a fast-growing technology company that’s scaling its engineering function and looking for an experienced Senior Java Engineer to join their core platform team.

This role is ideal for someone who wants to work on modern, cloud-native microservices within a high-performing engineering culture that values clean code, collaboration, and innovation. You’ll be working with Java 11+ (preferably Java 21), Spring, and Kafka, contributing to the design and delivery of resilient distributed systems used at scale.

The Role

• Design and build high-quality, scalable microservices in Java.
• Apply functional programming principles using Java or Kotlin.
• Work extensively with Java Streams, ensuring clean, performant code.
• Integrate and manage Kafka for real-time data streaming.
• Optimise SQL queries and database performance for reliability and speed.
• Drive best practices across monitoring, observability, and automation.
• Collaborate with cross-functional teams to deliver new platform capabilities.

About You

• Strong commercial experience with Java 11+, ideally Java 21.
• Deep knowledge of Spring, Kafka, and SQL / DBMS.
• Comfortable with functional programming concepts in Java or Kotlin.
• Proven background building cloud-native, microservice-based systems.
• Excellent communication skills and a collaborative mindset.
• Passion for writing clean, efficient, and testable code.

The Offer

• Salary up to £100,000 (depending on experience).
• Hybrid working – 3 days per week in modern central offices.
• Opportunity to shape technical direction within a fast-growing business.
• Supportive, engineering-led culture with real autonomy and impact.

If you’re a Senior Java Engineer who thrives on solving complex problems and enjoys working in a modern, data-driven environment, this is an outstanding opportunity to join a team where your work truly matters.