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Ref: #73278

Senior Backend Java Engineer – Spring Boot/API/PostgreSQL/Docker/CI/CD – INSIDE IR35 – 12 months

Senior Backend Java Engineer - Spring Boot/API/PostgreSQL/Docker/CI/CD - INSIDE IR35 - 12 months
Next Ventures seeks several experienced Java Developers to join a key Delivery team with our UK based Project/Client.
Here are the requirements:
Senior Backend Java Engineer
We are looking for a hands-on Senior Backend Java Engineer with recent experience building, testing, and deploying production-grade APIs and microservices. This is a coding-first backend role. We want someone actively engineering in their current or most recent role, not someone whose recent experience is mainly support, coordination, architecture-only, or line management.

Essential skills and experience

  • Strong hands-on commercial coding experience with modern Java (Java v17 min, v21 LTS or newer preferred)
  • Strong experience with Spring Boot
  • Experience building REST APIs / microservices from scratch
  • Strong testing skills using JUnit, Mockito, and ideally TDD
  • Experience with PostgreSQL or another relational SQL database
  • Experience with Docker
  • Experience with CI/CD pipelines (e.g. Jenkins, GitHub Actions, GitLab CI, Azure DevOps)
  • Comfortable working in agile, cross-functional teams
  • Has current SC clearance, or is willing and eligible to undergo SC clearance

Desirable

  • OpenAPI / Swagger
  • Liquibase or Flyway
  • Gradle
  • Kafka
  • Observability / monitoring experience
  • Exposure to Kubernetes
  • Some awareness of React / TypeScript

What we need from candidates

  • Built backend services or APIs themselves
  • Worked on microservice-based systems
  • Written automated tests as part of delivery
  • Used Docker and CI/CD in practice
  • Stayed technically current with modern Java and Spring Boot

Short summary

We need a genuinely hands-on Senior Backend Java Engineer with recent Java 17/21+ and Spring Boot experience, who has built APIs/microservices from scratch, writes automated tests, has worked with PostgreSQL, Docker, and CI/CD, and either already holds SC clearance or is willing and eligible to obtain it.

For more info call Matt on +442075494034 or email Matt@next-ventures.com

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