Senior Platform Engineer - DV Cleared

We are hiring multiple Senior Platform Engineers to join a highly secure Defence and National Security engineering environment, working on complex, mission-critical digital platforms supporting UK government systems.

This is a hands-on engineering role focused on designing, building, automating, and operating modern cloud-native platforms in highly secure environments. You will be part of teams delivering scalable, resilient and secure digital services used in real operational settings., * Lead the design and implementation of platform components across modern digital services

• Build, test, automate and support infrastructure and application services in production environments
• Develop and maintain scalable, secure, and resilient cloud platforms
• Work across engineering, security, product and testing teams in a multi-disciplinary environment
• Implement CI/CD pipelines and modern continuous delivery practices
• Support live services, ensuring availability, performance, and reliability
• Debug and resolve complex issues across distributed systems and infrastructure
• Apply infrastructure-as-code and configuration management tooling
• Contribute to technical design decisions, architecture discussions, and delivery planning
• Mentor and support junior engineers where appropriate

• Strong Linux engineering and troubleshooting experience
• Experience with Kubernetes and containerised environments
• Infrastructure-as-Code experience (e.g. Terraform or similar)
• Strong scripting ability in at least one: Python, Bash, PowerShell, Go, Ruby or Groovy
• Experience with cloud platforms (AWS or Azure)
• Experience operating in live production / service environments
• Strong understanding of networking, system debugging and observability tooling
• Experience with Git and modern version control workflows

Desirable Experience

• Experience in Defence, Government or other highly secure environments
• Exposure to cloud-native SaaS / PaaS platforms
• Experience with automation, monitoring and reliability engineering practices
• Certifications in AWS or Azure (mid-level or above)
• Experience mentoring or guiding junior engineers
• Strong understanding of DevOps and platform engineering best practices