Backend Developer

Location

Based in Swansea, South Wales – three days per week on-site.

Visa sponsorship available for eligible candidates.

We are looking for an experienced Senior Backend Developer with strong expertise in Java and Spring Boot to design and build scalable, secure, and high-performance backend systems. The ideal candidate should have experience working on large-scale digital platforms, including exposure to public sector or standards-driven environments such as GDS‑aligned projects.

• Design, develop, and maintain backend services using Java (8/11/17+) and Spring Boot
• Build and manage RESTful APIs and microservices architectures
• Collaborate with cross‑functional teams including frontend, Dev Ops, and product stakeholders
• Write clean, maintainable, and testable code following best practices
• Ensure application performance, scalability, and security
• Contribute to system design and architecture decisions
• Implement CI/CD pipelines and participate in deployment processes
• Conduct code reviews and mentor junior team members

• Strong hands‑on experience with Java and Spring Boot
• Solid understanding of microservices architecture
• Experience building and consuming REST APIs
• Familiarity with Hibernate / JPA
• Experience with messaging systems like Kafka or RabbitMQ
• Exposure to cloud platforms such as AWS, Azure, or GCP
• Experience with containerization tools like Docker and Kubernetes
• Strong database knowledge (Postgre
  
  SQL, MySQL, Mongo
  
  DB, etc.)
• Understanding of secure coding practices and application performance tuning
• Experience with Git and Agile methodologies

• Experience working in regulated or standards‑driven environments (e.g., public sector digital services or GDS‑aligned projects)
• Familiarity with modern Dev Ops practices and Infrastructure as Code (Terraform, etc.)
• Relevant certifications in Java or cloud platforms

• Strong analytical and problem‑solving abilities
• Good communication and collaboration skills
• Ability to work independently and in team environments
• Mentorship and leadership mindset

Scrumconnect Consulting is an equal opportunities employer. We are committed to building a diverse and inclusive team and welcome applications from all backgrounds, regardless of age, disability, gender, ethnicity, religion, or sexual orientation.