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# Software Engineer - High Security Clearance

- **Company:** Open Source Recruitment Limited
- **Location:** Cheltenham, UK
- **Salary:** £50,324.0
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), JavaScript (Programming Language), PHP (Programming Language), C Sharp (Programming Language), Software Quality, Code Review, Software Debugging, Python (Programming Language), Ruby, Software Engineering, TypeScript, SC Clearance, Programming Languages
- **Published:** October 25, 2026
- **Apply:** https://www.adzuna.co.uk/jobs/details/5329641702

## About the Role

We are seeking a Software Engineer with top-level security clearance to contribute to our critical projects. The ideal candidate will have a background in software development and a proven ability to work in high-security environments, with a focus on utilising a variety of technologies., 1. Proficiency in one or more programming languages, including but not limited to Python, Java, C#, JavaScript, TypeScript, Ruby, PHP, or Go.

 2. Strong problem-solving skills and the ability to work in a dynamic, fast-paced environment.
 3. Excellent communication and collaboration skills.

Security Clearances:

The candidate must possess one or more of the following top-level security clearances:

 1. SIA DV (Security Industry Authority Developed Vetting)
 2. Cheltenham DV (Developed Vetting specific to Cheltenham)
 3. MI5 DV (Military Intelligence, Section 5 Developed Vetting)

## Description

1. Design, develop, and implement software solutions, ensuring alignment with organisational objectives.
 2. Collaborate with cross-functional teams to define, design, and ship new features and enhance existing ones.
 3. Conduct code reviews to ensure code quality, reliability, and maintainability.
 4. Troubleshoot, debug, and optimise the performance of applications.
 5. Ensure adherence to software quality and security standards.
 6. Keep abreast of the latest industry trends and technologies.
 7. Provide technical guidance and mentorship to other engineers.