About the Role

We are seeking an experienced Senior Java Engineer to join our client’s growing engineering team. This is an exciting opportunity to work on high-scale, distributed systems in a collaborative environment, contributing to the design and development of mission-critical applications.

The ideal candidate will bring strong expertise in Java (17+), Spring Boot, and Kafka (or similar event-driven messaging technologies), alongside a solid understanding of modern software engineering practices.

Key Responsibilities

• Design, develop, and maintain high-performance Java applications using Java 17+ and Spring Boot.
• Build and optimise event-driven, distributed systems leveraging Kafka (or similar streaming platforms).
• Work closely with architects and product teams to design scalable, resilient solutions.
• Contribute to all phases of the development lifecycle, including requirements analysis, technical design, implementation, testing, deployment, and support.
• Ensure code quality, maintainability, and best practices through reviews, automated testing, and CI/CD pipelines.
• Participate in agile ceremonies and collaborate effectively with cross-functional teams.

Required Skills & Experience

• Strong commercial experience with Java 17+.
• Deep knowledge of Spring Boot and microservice architecture.
• Proven hands-on experience with Kafka (or RabbitMQ, Pulsar, or similar).
• Strong understanding of REST APIs and integration patterns.
• Experience with cloud environments (AWS, Azure, or GCP).
• Good knowledge of CI/CD tools and containerisation (Docker, Kubernetes).
• Understanding of system design, distributed systems, and data streaming.
• Strong problem-solving skills, with the ability to work independently in a fast-paced environment.

Desirable Skills

• Experience with NoSQL databases (MongoDB, Cassandra, DynamoDB).
• Familiarity with monitoring and observability tools (Prometheus, Grafana, ELK, etc.).
• Exposure to Domain Driven Design (DDD) and Event Sourcing.

What We Offer

• Outside IR35 contract.
• Hybrid working model: 2 days per week onsite in London.
• Opportunity to work on challenging, large-scale engineering problems in a modern tech environment.
• Collaborative and supportive engineering culture.