Java Backend Developer
IT WORLD LIMITEDUnited Kingdom17 hours ago
ContractRemote FriendlyFinance
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Job Description:
Location: Edinburgh, UK(2 days onsite and 3 days remote)
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).
Non-Mandatory (Nice-to-Have)
- MongoDB (schema design, indexes, aggregation).
- Messaging systems: RabbitMQ, GCP Pub/Sub, or SQS/SNS.
- Caching & Performance: Redis, Hazelcast; rate limiting; API gateways (Kong/Apigee).
- Observability: Prometheus/Grafana, ELK/EFK, OpenTelemetry, distributed tracing.
- Build & Infra: Maven/Gradle tuning, Helm charts, Terraform, Argo CD.
- Testing: Testcontainers, WireMock/MockServer, contract testing (Pact), chaos testing basics.
- Security: mTLS, secrets rotation, vulnerability scanning (Snyk/Trivy), supply chain security.
Key Skills
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