Company: Vallum Associates
Location: Sheffield
Posted: March 25th, 2026
• High concurrency and scalability patterns
• Strong knowledge of:
• System trade-offs (consistency vs availability, latency vs throughput)
• API design and service boundaries
• Fault tolerance and resilience design
• Experience with system decomposition and domain modelling
• Expert-level proficiency in Java (8/11/17+)
• Strong experience with Spring Boot / Spring Cloud
• Deep understanding of RESTful APIs and microservices
• Experience with ORM frameworks (Hibernate, JPA)
Frontend
• Strong hands-on experience with at least one:
• Solid understanding of frontend architecture and state management
• Ability to contribute to frontend system design (not just coding)
Data & Infrastructure
• Strong experience with relational databases (Oracle / SQL Server / PostgreSQL)
• Experience with:
• Redis or distributed caching
• Familiar with:
• CI/CD and automated deployment pipelines
#J-18808-Ljbffr