Location: Central London, Greater London - United Kingdom Type: Permanent
Senior Platform Engineer (DV Cleared)
Locations: Corsham or London (onsite)
Clearance: Active MoD Developed Vetting (DV) required
Salary: Competitive (up to ~£80,000 depending on experience + Bonus)
Overview
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.
Key Responsibilities
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
Technical Requirements
Active DV clearance (essential)
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