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# Java Developer | National Security - eSC/eDV Required

- **Company:** IBM
- **Location:** Epsom, United Kingdom
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), Agile Methodology, Amazon Web Services, Automation of Tests, Unit Testing, Microsoft Azure, Cloud Computing, Code Review, Continuous Integration, Relational Databases, DevOps, Gradle, Hibernate (Java), IBM WebSphere MQ, Java Persistence API, Java Web Services, Apache Maven, Enterprise Messaging Systems, Object-Oriented Software Development, OpenShift, RabbitMQ, Mockito, Software Deployment, Software Engineering, SQL Databases, Test-Driven Development (TDD), Spring-boot, Software Security, Backend, Git, Event Driven Architecture, Gitlab-ci, Integration Tests, Kubernetes, Apache Kafka, Cloud Migration, Api Design, Restful APIs, Docker, Microservices
- **Published:** November 13, 2026
- **Apply:** https://www.apply4u.co.uk/jobs/java-developer-national-security-escedv-required/55865663

## About the Role

Spring

Spring Boot

REST APIs

Microservices

Object-Oriented Programming

API development and integration

Maven or Gradle

Hibernate / JPA

SQL and relational databases

Testing & Quality

JUnit

Mockito

WireMock

Unit testing

Integration testing

Test-driven development

Automated testing

Code reviews

Engineering quality practices

Modern Software Delivery

Experience or exposure to technologies and practices such as:
Git

Jenkins

GitLab CI/CD

Docker

Kubernetes

OpenShift

Helm

CI/CD pipelines

Cloud-hosted application environments

Engineering Capability

Strong analytical and problem-solving skills.

Experience diagnosing and resolving software defects and technical issues.

Understanding of secure software-development practices.

Ability to explain technical decisions clearly.

Experience working collaboratively within multidisciplinary delivery teams.

Comfortable working within Agile or hybrid software-delivery environments.

This role is subject to pre-employment screening in line with the UK Government's Baseline Personnel Security Standard (BPSS). An additional range of Personal Security Controls referred to as National Security Vetting (NVS) may apply, this could include meeting the eligibility requirements for The Security Check (SC) or Developed Vetting (DV).
Preferred technical and professional experience Experience with event-driven architectures and messaging technologies such as Kafka, RabbitMQ or IBM MQ.

Exposure to AWS/Azure, Docker, Kubernetes/OpenShift and modern CI/CD environments.

Experience with application modernisation, cloud migration or supporting business-critical applications.

Strong problem-solving skills with a focus on secure, maintainable and reliable engineering.

Comfortable working directly with clients, Product Owners and multidisciplinary delivery teams.

For senior candidates, experience mentoring engineers, leading technical workstreams and influencing design decisions.

Experience within National Security, Public Sector or other high-assurance environments would be advantageous.

## Description

We're looking for Java Developers and Software Engineers at a range of experience levels to join our National Security business, working across secure, enterprise-scale application and modernisation programmes.
This is a hands on engineering role for practitioners who enjoy solving complex problems, building high quality software and working collaboratively with clients, architects, engineers and multidisciplinary delivery teams.
You'll work across modern Java environments, contributing throughout the software development lifecycle from requirements and technical design through to development, automated testing, deployment and production support.
Whether you're an established Senior Java Engineer or earlier in your career and looking to develop within a consulting environment, we're interested in individuals with strong engineering foundations, curiosity and a desire to broaden their technical capability.
Key ResponsibilitiesAs a Java Developer, you will:
Design, develop, test and maintain Java-based applications and services.

Build backend services and REST APIs using Java and frameworks such as Spring and Spring Boot.

Contribute to microservice and distributed application architectures.

Develop clean, maintainable and appropriately tested code.

Participate in technical design discussions and contribute to engineering decisions.

Diagnose and resolve complex software and production issues.

Develop and maintain automated unit, integration and component tests.

Work with CI/CD pipelines and modern software deployment practices.

Collaborate with Architects, DevOps Engineers, Test Engineers, Business Analysts and other Software Engineers throughout the delivery lifecycle.

Support applications through development, testing and production environments.

Contribute to code reviews, engineering standards and continuous improvement.

Engage with client stakeholders to understand requirements and translate them into practical technical solutions.

Support and mentor less experienced engineers where appropriate.

Required technical and professional expertiseWe're interested in candidates who can demonstrate experience across a number of the following areas:
Java Engineering