Senior Platform Engineer

About the role

Second Front Systems is seeking a Platform Engineer to support the deployment and scaling of the Game Warden platform for UK government and defence. You will play a pivotal role in managing secure cloud infrastructure and DevSecOps pipelines within classified and air-gapped environments. This role requires a candidate who can balance technical innovation with the rigorous security and compliance standards necessary for national security missions.

Responsibilities

• Support the security and operations of Game Warden across air-gapped and classified environments.
• Build and manage CI/CD pipelines that integrate DevSecOps best practices.
• Integrate and maintain SIEM and security tooling to ensure observability and compliance.
• Build and implement scalable, secure cloud infrastructure using Kubernetes and Pulumi.
• Work cross-functionally to assess infrastructure needs and deliver on product roadmap milestones.
• Document infrastructure and internal procedures to ensure secure, repeatable, and auditable deployments.
• Collaborate with defence and government stakeholders to provision secure cloud resources.
• Contribute to R&D and experimentation to advance platform capabilities in disconnected environments.

Required skills

• DevSecOps
• Systems Engineering
• Cloud-native platforms
• AWS
• Azure
• GCP
• Kubernetes
• Docker
• Golang
• CI/CD
• SIEM
• REST APIs
• Microservice patterns

Nice to have

• MOD Secure by Design
• JSP 453
• NCSC Cloud Security Principles
• NIST 800-53
• GitLab
• Google Workspace
• Slack

Qualifications

• 5–7+ years of relevant experience in DevSecOps, systems engineering, and software development
• UK national or dual national eligible for Developed Vetting (DV) clearance

Certifications

• AWS Solutions Architect
• Google Solutions Architect
• Azure Solutions Architect

Benefits

• Private healthcare
• Pension scheme
• Wellness perks
• Equity incentive plan
• Technology and home-office stipend
• Annual professional development budget
• Flexible paid time off
• Enhanced parental leave
• Referral bonus scheme

About the Company

Second Front Systems (2F) is a defence technology company dedicated to fast-tracking government access to disruptive, commercially-proven technology for national security missions. Their Game Warden platform is a fully managed and compliant DevSecOps environment that accelerates the accreditation and deployment of SaaS applications for government use.