Principal Software Engineer (DevSecOps)

United States Digital Space LLC; Luton; Hybrid; GBP 54,000 - 70,000; Full time

Job summary

The Principal Software Engineer (DevSecOps) role within the company UK focuses on accelerating secure software delivery across defence and security programmes. You will shape and evolve the enterprise DevSecOps capability, enabling teams to deliver features rapidly, reliably and securely.

You will champion modern engineering practices, drive automation, and embed security across the software development lifecycle, mentoring teams to improve outcomes and operational excellence.

Qualifications

• Experience delivering software in a complex engineering environment.
• Hands-on CI/CD practices and tooling experience.
• Knowledge of cloud, on-prem and hybrid environments with security considerations.
• Experience with enterprise DevOps and DevSecOps tools.
• Background in software/platform engineering or IT operations.
• Experience with requirements/configuration/version control tools.
• Knowledge of infrastructure-as-code, automation and deployment tech.
• Experience in Agile development environments.
• Strong communication skills to mentor and influence teams.
• Passion for automation and engineering excellence.

Responsibilities

• Contribute to delivery and evolution of the enterprise DevSecOps platform.
• Mentor teams adopting DevSecOps practices and tools.
• Plan and implement DevSecOps across cloud, on-prem and hybrid environments.
• Design, deploy and maintain development, test and production environments.
• Drive automation across software delivery and infrastructure provisioning.
• Develop and maintain CI/CD pipelines and deployment processes.
• Apply change, configuration and release management practices.
• Support deployed services ensuring performance, security and availability.
• Collaborate with engineers and stakeholders to improve delivery capability.
• Champion secure-by-design principles across the SDLC.

Skills

CI/CD practices

DevSecOps

Cloud and hybrid environments

Infrastructure as code

Agile development

Mentoring

Security by design

Automation

Education

Degree in Computer Science or related discipline

Tools

CI/CD tooling

Version control

Job description

Salary Range: £54,000 - £70,000

the company UK operates a grade-based salary framework with broad bands. The salary range shown reflects the approved grade band for this role, or a narrower hiring range published within that band, and is benchmarked against the external market. Exceptions above the standard range are managed through governance controls to protect internal equity.

Your Impact

As a Principal Software Engineer (DevSecOps), you will play a key role in accelerating the delivery of secure, high-quality software across the company's defence and security programmes. You will help shape and evolve our enterprise DevSecOps capability, enabling teams to deliver features and updates rapidly, reliably and securely.

Working within our software engineering community, you will champion modern engineering practices, drive automation, and embed security throughout the software development lifecycle. Through your technical leadership and mentoring, you will help build a collaborative DevSecOps culture focused on innovation, continuous improvement and operational excellence.

What You'll Do

• Contribute to the delivery and evolution of the company's enterprise-wide DevSecOps platform.
• Support and mentor teams adopting DevSecOps practices, tools and ways of working.
• Contribute to the planning and implementation of DevSecOps capabilities across cloud, on-premises and hybrid environments.
• Design, deploy and maintain development, test and operational environments.
• Drive automation across software delivery and infrastructure provisioning to improve quality, consistency and efficiency.
• Develop and maintain automation frameworks, CI/CD pipelines and deployment processes.
• Apply effective change, configuration and release management practices.
• Support deployed services, ensuring high levels of performance, security and availability.
• Collaborate with engineers, platform teams and stakeholders to improve delivery capability and engineering practices.
• Champion secure-by-design principles across the software development lifecycle.

What You'll Bring

You will have a degree in Computer Science, Software Engineering, Systems Engineering, or a related discipline, together with experience delivering software solutions within a complex engineering environment.

We are looking for candidates who can demonstrate:

• Experience designing, building and operating secure-by-design environments.
• Hands-on experience with Continuous Integration and Continuous Delivery (CI/CD) practices and tooling.
• Knowledge of cloud, on-premises and hybrid environments, including associated security considerations.
• Experience with enterprise DevOps and DevSecOps tools supporting modern software delivery.
• A background in software engineering, platform engineering, IT operations or a related discipline.
• Experience with requirements management, configuration management and version control tools.
• Knowledge of infrastructure-as-code, automation and deployment technologies.
• Experience working within Agile development environments.
• Strong communication skills with the ability to mentor and influence technical teams.
• A passion for automation, continuous improvement and engineering excellence.

Security Clearance

This role is subject to pre-employment screening in line with the UK Government’s Baseline Personnel Security Standard (BPSS). An additional range of Personnel Security Controls referred to as National Security Vetting (NSV) may apply, this could include meeting the eligibility requirements for The Security Check (SC) or Developed Vetting (DV). For more information and guidance please visit: https://careers.uk.the company.com/gb/en/security-and-vetting

Primary Location

GB - Luton - Cap. Green 300

Additional Locations

GB - Basildon, GB - Edinburgh, GB - Lincoln, GB - Newcastle, GB - Southampton

Contract Type

Permanent

Hybrid Working

Hybrid