Senior Backend Java Engineer
Posted Today by Jobserve
Negotiable
Inside
Remote
London
Summary: The role of Senior Backend Java Engineer requires a hands-on professional with extensive experience in building, testing, and deploying production-grade APIs and microservices using modern Java technologies. The position emphasizes active engineering rather than support or management roles, with a focus on recent coding experience. The candidate must be comfortable working in agile teams and have the ability to obtain SC clearance. This is a remote position with occasional onsite meetings required.
Key Responsibilities:
- Build, test, and deploy production-grade APIs and microservices.
- Engage in hands-on coding with modern Java technologies.
- Work collaboratively in agile, cross-functional teams.
- Write automated tests as part of the delivery process.
- Utilize Docker and CI/CD pipelines in practice.
- Maintain technical currency with modern Java and Spring Boot.
- Attend onsite meetings as required (1-2 a month).
Key Skills:
- 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).
- Current SC clearance or willingness to obtain it.
Salary (Rate): £575 Daily
City: Remote
Country: undetermined
Working Arrangements: remote
IR35 Status: inside IR35
Seniority Level: Senior
Industry: IT
Senior Backend Java Engineer
Rate: £500 - £575 a day pay inside
Location: Remote, with expectations to attend onsite meetings when required (1-2 a month)
Duration: 6 months+
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 Back End 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 (eg 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
- OpenAPI/Swagger
- Liquibase or Flyway
- Gradle
- Kafka
- Observability/monitoring experience
- Exposure to Kubernetes
- Some awareness of React/TypeScript
- Built Back End 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
- Recent hands-on Java Back End coding experience
- Built Spring Boot APIs/services from scratch
- Used Java 17/21+ in recent roles
- Written unit/integration tests
- Worked with SQL databases
- Used Docker and CI/CD
- Has SC clearance, or is willing and eligible to obtain it
- Ability to complete a practical coding assessment
- Production support/L3 support
- Bug fixing only
- Release or process coordination
- Line management with limited coding
- Architecture/governance without recent delivery
- Legacy Java maintenance without clear modern Back End engineering experience
- What Java version has the candidate used most recently?
- Are they currently hands-on coding?
- Have they built a Spring Boot API/service from scratch in the last 5 years?
- What testing do they write personally?
- What database have they used most recently?
- Have they used Liquibase or Flyway?
- What CI/CD tooling have they used hands-on?
- Have they used Docker hands-on?
- Have they worked mainly on microservices or monoliths?
- Do they already hold SC clearance, or are they willing and eligible to obtain it?
- Are they comfortable with a practical coding exercise?
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.
Reasonable Adjustments:
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