Java Developer - eDV

Scot Lewis Associates Limited; London; On-site; GBP 50,000 - 70,000; Full time

Job summary

A leading company in the defence sector is seeking a skilled Java Developer in London. The successful candidate will design and develop secure systems that support national safety initiatives. This position offers competitive salary and opportunities for professional growth with cutting-edge technologies in a collaborative environment.

Benefits

Competitive salary with performance-based bonuses

Opportunities for professional development

Collaborative work environment

Qualifications

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

Responsibilities

• Design, develop, and maintain Java-based applications.
• Collaborate with teams on software development lifecycle.
• Ensure code quality and performance through testing.

Skills

Java

Object-oriented programming

Agile methodologies

Databases

Tools

Maven

Jenkins

Git

JIRA

Job description

Java Developer

Location - London

Clearance Required: UK*C DV / EDV

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.

Required Qualifications and 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).

What We Offer:

• Competitive salary with performance-based bonuses.
• Opportunities to work on cutting-edge defence technologies.
• Continuous professional development, training, and certification support.
• A collaborative, purpose-driven work environment where security and mission impact matter.