Senior Java Back-end Developer

Role : Senior Java Back end Developer

Job Type : Contract , Hybrid

Location : Edinburgh, Leeds , UK

Job Description

-Mandatory Skills & Experience

• Java 17: Functional programming features, records, sealed classes, performance considerations.
• Spring Boot: Auto-configuration, profiles, Spring Data/JPA, WebFlux (nice), validation, actuator.
• SQL & RDBMS: Schema design, indexes, query optimization, transactions, isolation levels.
• Apache Kafka: Topic design, partitioning strategy, consumer groups, offsets, retries/DLQ, schema registry/Avro/Protobuf.
• GCP: Familiarity with Cloud Run or GKE, Cloud SQL, Cloud Storage, Secret Manager, IAM, VPC; cost/perf trade-offs.
• DevOps Tooling: Git, CI/CD (Jenkins/GitHub Actions/GitLab), Docker; Kubernetes fundamentals; IaC awareness.
• Software Engineering Fundamentals: DDD concepts, SOLID, testing (unit/integration), performance profiling, and security basics (OAuth2/JWT, OWASP Top 10).