Senior Backend Java Engineer Job London area,England UK,Software Development

Overview

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+

Responsibilities

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 )
Strong experience with Spring Boot
Experience building REST APIs / microservices from scratch
Strong testing skills using JUnit, Mockito, and ideally TDD
Experience with Postgre

SQL or another relational SQL database
Experience with Docker
Experience with CI/CD pipelines (e.g. Jenkins, Git Hub Actions, Git Lab CI, Azure Dev Ops)
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 / Type Script

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

Non-negotiables

Recent hands-on Java backend 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

Profiles unlikely to be a fit

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 backend engineering experience

Recruiter screening questions

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?

Short recruiter 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 Postgre

SQL, Docker, and CI/CD, and either already holds SC clearance or is willing and eligible to obtain it.

Reasonable Adjustments

Respect and equality are core values to us. We are proud of the diverse and inclusive community we have built, and we welcome applications from people of all backgrounds and perspectives. Our success is driven by our people, united by the spirit of partnership to deliver the best resourcing solutions for our clients.

If you need any help or adjustments during the recruitment process for any reason, please let us know when you apply or talk to the recruiters directly so we can support you.

#J-18808-Ljbffr