Java Engineer

Arrows; Greater London; Hybrid; GBP 111,714 - 146,585; Full time

Job summary

A leading tech company in Greater London is seeking an experienced Java Engineer for a 6-month hybrid contract. This role involves designing scalable backend systems and working with modern tools like AWS and Kubernetes. The ideal candidate has strong Java and Spring Boot experience, along with a passion for TDD and microservices. Join a dynamic team working on high-availability systems used by millions.

Qualifications

• Strong commercial experience with Java and Spring Boot.
• Proven experience designing and maintaining microservices.
• Hands-on experience working with PostGres.
• Background working in cloud environments, ideally AWS.
• Knowledge of Kubernetes and containerised systems.
• Familiarity with CI/CD pipelines and automation tooling.
• Strong understanding of software testing and TDD.

Responsibilities

• Designing and developing performant, scalable backend systems using Java.
• Working with PostGres and building microservices with Spring Boot.
• Developing and maintaining RESTful APIs and event-driven systems.
• Writing clean, testable code and following TDD principles.
• Working closely with DevOps, Product, and QA teams.

Skills

Java

Spring Boot

PostGres

Kubernetes

TDD

AWS

Agile

Job description

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Java Engineer – Java Developer – PostGres – Kubernetes – Kafka – TDD – 6‑Month Contract – Hybrid (2 days on site, London) – Day Rate: Up to £700 (Inside IR35)

Join a high-performing engineering team working on large-scale, high-availability systems used by millions. This role offers the chance to build and enhance complex backend services in a modern, cloud-native environment.

What you'll be doing:

• Designing and developing performant, scalable backend systems using Java (up to Java 21)
• Working with PostGres
• Building microservices with Spring Boot and related frameworks
• Developing and maintaining RESTful APIs and event-driven systems
• Writing clean, testable code and following TDD principles with a strong focus on unit testing
• Working closely with DevOps, Product, and QA teams to deliver high-quality solutions
• Deploying and supporting services in AWS with tools such as Lambda, ECS, S3, and CloudFormation, along with Kubernetes for container orchestration

What we're looking for (Requirements):

• Strong commercial experience with Java and Spring Boot
• Proven experience designing and maintaining microservices
• Hands‑on experience working with PostGres
• Background working in cloud environments, ideally AWS
• Knowledge of Kubernetes and containerised systems
• Familiarity with CI/CD pipelines and automation tooling
• Strong understanding of software testing, TDD, and unit testing
• Comfortable working within Agile teams
• Clear communication skills and the ability to collaborate effectively in a hybrid setup

If you are an experienced Java Engineer keen to join a modern engineering environment and work on systems that operate at scale, please get in touch for more information.

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