Senior Software Developer – SC Cleared

Searchability; Worcester, Woking; Hybrid; GBP 60,000 - 80,000; Full time

Job summary

A leading technology firm in the UK is seeking a Senior Software Development Engineer to work on mission-critical defence projects. The role involves contributing to complex software delivery across various technology domains, including communications and cyber systems. Candidates should have strong software development skills in Java, Spring, and React, along with experience in Agile environments. This position offers a hybrid work model and opportunities for innovation in advanced engineering.

Qualifications

• Strong understanding of the full Software Development Life Cycle.
• Experience designing and developing complex software systems.
• Ability to understand and influence system architecture and design.

Responsibilities

• Contribute to the delivery of complex software projects across the full development lifecycle.
• Design, develop, and test software in line with industry best practices.
• Influence and support system architecture and design decisions.
• Promote and embed modern development practices to ensure high-quality outcomes.

Skills

Java

Spring

React

Test-Driven Development (TDD)

Agile delivery

Source control and delivery tooling

Tools

GitLab

Jira

Job description

Senior Software Development Engineer – SC Cleared

Role: New permanent Opportunity for a Senior Software Developer to work on a range of Mission-Critical Defence projects

Location: Worcestershire, Woking, or Bristol (Hybrid)
Clearance: SC Clearance required for UK Defence Projects

Email: [e-mail]

Phone: [phone]

The Opportunity

We are seeking a Senior Software Development Engineer to join a highly skilled engineering team working on advanced, mission-critical systems. This role offers the opportunity to contribute to cutting-edge technology programmes spanning defence, security, and complex system integration, working across the full software lifecycle from early concept through to production.

You will collaborate with multidisciplinary technical teams, influence system design decisions, and help shape how high-quality software is delivered in complex environments.

The Role

As a Senior Software Development Engineer, you will support development activities across a wide range of advanced technology domains, including:

• Radio Frequency and Optical Communications
• RADAR and Electronic Warfare
• Cyber and Cryptographic Systems
• Global Navigation Satellite Systems
• Joint, Air, Land, and Maritime platforms

Projects range from early proof-of-concept demonstrators to fully deployed production systems, offering exposure to varied levels of technical maturity.

Key Responsibilities

• Contribute to the delivery of complex software projects across the full development lifecycle
• Design, develop, and test software in line with industry best practices
• Influence and support system architecture and design decisions
• Promote and embed modern development practices to ensure high-quality outcomes
• Collaborate closely with other engineering teams and customer-facing technical groups
• Build strong relationships within the customer and stakeholder community

Essential Experience

• Strong understanding of the full Software Development Life Cycle
• Experience designing and developing complex software systems
• Ability to understand and influence system architecture and design
• Proficiency with Java, Spring, and React
• Experience with Test-Driven Development (TDD)
• Strong background in Agile delivery (Scrum, CI/CD, BDD)
• Experience using source control and delivery tooling such as GitLab and Jira

Why Apply?

This is an opportunity to work at the forefront of advanced engineering, contributing to technologies that have real-world impact. You’ll be part of a forward-thinking environment that values innovation, technical excellence, and the courage to tackle complex challenges.