eDV Java Developer - Contract

Scot Lewis Associates Limited; Cheltenham; On-site; GBP 100,000 - 125,000; Full time

Job summary

A leading company in the Defence and National Security sector is looking for a skilled Java Developer. You will contribute to mission-critical systems supporting national safety and operational capabilities, requiring a strong technical background and experience in secure environments.

Qualifications

• 3+ years experience in Java development required.
• Strong understanding of object-oriented programming and design patterns.
• Ability to work in high-assurance environments.

Responsibilities

• Design, develop, and maintain Java-based applications for secure systems.
• Collaborate with cross-functional teams including system architects and cybersecurity specialists.
• Ensure code quality and security compliance through rigorous testing.

Skills

Java (SE/EE)

Object-oriented programming

Agile methodologies

Maven

Jenkins

Git

JIRA

Databases (PostgreSQL, Oracle, MySQL)

Compliance

Job description

Java Developer

Location - Cheltenham

Clearance Required: UK*C DV / EDV

£600 - £700 per day - 12 month contract

About the Role:

We are seeking a skilled Java Developer to join our growing team supporting projects in the Defence and National Security sector. You will work on mission-critical systems that support national safety, intelligence, and operational capabilities. This role demands a combination of strong technical skills and an understanding of working within secure, regulated environments.

Key Responsibilities:

• Design, develop, and maintain Java-based applications for secure systems. Participate in the full software development lifecycle: requirements gathering, analysis, design, development, testing, and deployment.
• Collaborate with cross-functional teams including system architects, cybersecurity specialists, and data analysts.
• Ensure code quality, security compliance, and performance through rigorous testing and review processes.
• Support integration with existing defence systems and third-party tools.
• Write and maintain documentation in line with secure software engineering practices.

Skills:

• Proven experience in Java (SE/EE) development (typically 3+ years).
• Strong understanding of object-oriented programming and design patterns.
• Familiarity with agile methodologies
• Proficiency in tools such as Maven, Jenkins, Git, and JIRA.
• Good understanding of databases (e.g., PostgreSQL, Oracle, MySQL).
• Ability to work in high-assurance environments with strict compliance standards.

Desirable:

• Active security clearance (UK*C / EDV).
• Experience in defence, intelligence, or national security projects.
• Knowledge of messaging systems (Kafka, JMS), microservices architecture, or container technologies (Docker, Kubernetes).
• Familiarity with cloud platforms used in secure environments (e.g., AWS GovCloud, Azure Government).