Java Backend Developer

Java Backend Developer

Posted Today by IT WORLD LIMITED

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Negotiable
Undetermined
Hybrid
Edinburgh, Scotland, United Kingdom
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Amazon Managed Streaming for Apache Kafka (Amazon MSK) Apache Kafka Application Deployment Application Programming Interface (API) AWS Identity And Access Management (IAM) Azure Kubernetes Service Cloud Computing Cloud Storage Cloud Technology Containerisation Continuous Integration and Continuous Delivery DevOps Docker (Software) Functional Programming Generic Programming Git (Version Control System) Google Cloud Platform (GCP) Google Kubernetes Engine (GKE) Infrastructure as Code (IaC) Java (Programming Language) Kubernetes Management MongoDB Nice (Unix Utility) Open Web Application Security Project (OWASP) Profiling (Computer Programming) Query Optimisation RabbitMQ Redis Software Development Software Engineering Spring Boot SQL (Programming Language) Terraform Verification And Validation Vulnerability Vulnerability Scanning Web SQL Databases

Summary: The Java Backend Developer role is based in Edinburgh, UK, requiring a blend of on-site and remote work. Candidates must possess strong expertise in Java 17, Spring Boot, SQL, and Apache Kafka, along with familiarity in GCP and DevOps tooling. The position emphasizes software engineering fundamentals and offers opportunities to work with various technologies and methodologies. Non-mandatory skills in MongoDB and messaging systems are considered advantageous.

Key Responsibilities:

  • Develop and maintain backend applications using Java 17 and Spring Boot.
  • Design and optimize SQL databases and queries.
  • Implement messaging systems using Apache Kafka.
  • Utilize GCP services for application deployment and management.
  • Apply DevOps practices including CI/CD and containerization.
  • Ensure software engineering best practices are followed, including testing and security measures.

Key Skills:

  • Java 17, Spring Boot, SQL & RDBMS.
  • Apache Kafka, GCP services.
  • DevOps tooling (Git, CI/CD, Docker, Kubernetes).
  • Software engineering fundamentals (DDD, SOLID, testing).
  • Non-mandatory skills in MongoDB and messaging systems.

Salary (Rate): undetermined

City: Edinburgh

Country: United Kingdom

Working Arrangements: hybrid

IR35 Status: undetermined

Seniority Level: undetermined

Industry: IT

Detailed Description From Employer:

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.
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