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DELTACLASS TECHNOLOGY SOLUTIONS LIMITED

Java Backend Developer

DELTACLASS TECHNOLOGY SOLUTIONS LIMITED
United Kingdom · Contract · Entry

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

Ranked by relevance

cloud functional programming kubernetes terraform rabbitmq storage docker redis kafka owasp cicd git sql gcp ddd
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Country Guide

United Kingdom

Global English-speaking job market

Posted
Apr 02, 2026
Type
Contract
Level
Entry
Location
Edinburgh
Company
DELTACLASS TECHNOLOGY SOLUTIONS LIMITED

Industries

Software Development

Categories

Engineering Information Technology

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