Backend Software Engineer

Software Engineer - Java 21, Springboot

Up to £550 per day (Inside IR35)

London / Remote

6 months

My client is an instantly recognisable consultancy who require a strong Backend Software Engineer with deep expertise in Java (Spring Boot) to join a large-scale, business-critical microservices programme. All candidates must be eligible for Security Clearance (SC)

Key Requirements

Proven experience working as a Java Software Engineer on large microservice architectures

Strong experience building scalable backend and RESTful services using Java (Spring Boot)

Ideally Java v21 (or very recent versions)

Postgres (or other relational SQL databases) with a solid understanding of schema design and SQL

Docker: confident containerising and deploying applications

Test-Driven Development (JUnit, Mockito, or similar testing frameworks)

CI/CD: hands-on experience with Jenkins or similar automated pipeline tooling

Comfortable working in agile teams and collaborating closely with engineers and other disciplines

Nice to have

Active Security Clearance (SC)

Experience in coding-intensive environments (fintech, payments, digital banking, capital markets/trading)

API specification using Swagger / OpenAPI

Gradle build systems

Liquibase (or similar) for database migrations/versioning

Kafka or other event-streaming platforms

React and TypeScript

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