Senior Software Engineer — Secure Defence Systems

Cyber Security training courses; Salisbury; On-site; GBP 60,000 - 85,000; Full time

Benefits offered by this job

Specialist allowance £2,758 annually

Job summary

Dstl is seeking a Senior Software Developer to join a multidisciplinary team at Porton Down, Salisbury. You will design, build and deliver secure, scalable software solutions for critical national security and defence outcomes, working with engineers, scientists and operational stakeholders.

You will influence technical directions, contribute to architecture decisions and mentor colleagues while championing modern software engineering practices across the full development lifecycle.

Qualifications

• Degree in a STEM subject or equivalent relevant experience.
• Experience programming in Python, C, C++, Java, Go or Rust.
• Strong understanding of software engineering best practices including testing and maintainability.
• Experience using Git and collaboration platforms like GitHub or GitLab.
• Experience working in Linux environments and scripting.
• Experience in Agile or iterative development.

Responsibilities

• Design, develop and maintain high-quality software applications and capabilities.
• Translate user needs and technical requirements into practical software solutions.
• Contribute to software architecture, design decisions and technology selection.
• Build secure, scalable and maintainable systems using modern engineering practices.
• Develop and support software throughout the lifecycle and ensure quality.

Skills

Python

C

C++

Java

Go

Rust

Git

GitHub/GitLab

Linux

Agile

Debugging

Software architecture

Education

Degree in STEM-related subject

Tools

Git

GitHub/GitLab

Job description

Dstl is seeking a Senior Software Developer to join a multidisciplinary team at Porton Down, Salisbury. You will design, build and deliver secure, scalable software solutions for critical national security and defence outcomes, working with engineers, scientists and operational stakeholders.

You will influence technical directions, contribute to architecture decisions and mentor colleagues while championing modern software engineering practices across the full development lifecycle.