Senior Backend Developer – Java & Spring Boot

About the role

Scrumconnect Consulting is seeking a Senior Backend Developer to join its multidisciplinary agile team in Swansea. You will design and build high‑performance, secure backend services for large‑scale digital platforms, many of which serve UK public sector users.

Key responsibilities

• Design, develop and maintain backend services using Java (8/11/17+) and Spring Boot.
• Build and manage RESTful APIs and micro‑services architectures.
• Collaborate with frontend, DevOps and product stakeholders to deliver end‑to‑end solutions.
• Write clean, maintainable, testable code and conduct code reviews.
• Ensure application performance, scalability and security.
• Contribute to system design and architecture decisions.
• Implement CI/CD pipelines and support deployment processes.
• Mentor junior team members.

Required profile

• Strong hands‑on experience with Java and Spring Boot.
• Solid understanding of micro‑services architecture.
• Experience building and consuming REST APIs.
• Familiarity with Hibernate/JPA.
• Experience with messaging systems such as Kafka or RabbitMQ.
• Exposure to cloud platforms (AWS, Azure, GCP).
• Proficiency with Docker and Kubernetes.
• Strong database knowledge (PostgreSQL, MySQL, MongoDB).
• Understanding of secure coding practices and performance tuning.
• Experience with Git and Agile methodologies.

Required skills

• Java (8/11/17+)
• Spring Boot
• REST APIs
• Micro‑services
• Hibernate / JPA
• Kafka or RabbitMQ
• AWS, Azure, GCP
• Docker
• Kubernetes
• PostgreSQL, MySQL, MongoDB
• Git
• Agile
• CI/CD pipelines
• Terraform (preferred)

What we offer

• Visa sponsorship for eligible candidates.
• Flexible hybrid working model (3 days onsite).
• Collaborative multidisciplinary agile environment.
• Opportunity to work on impactful public‑sector digital services.