Senior Platform Engineer (United Kingdom)
Second Front Systems3 months ago
London, United KingdomSenior
Responsibilities
- Support the security and operations of the Game Warden platform across air-gapped and classified environments.
- Build and manage secure CI/CD pipelines incorporating DevSecOps practices throughout the software development lifecycle.
- Build and maintain scalable cloud infrastructure using Kubernetes and Pulumi, with Go-based implementation.
- Integrate and maintain SIEM, monitoring, alerting, and observability tooling.
- Collaborate with government and defence stakeholders to provision secure cloud resources and satisfy deployment and accreditation requirements.
- Document infrastructure, procedures, and deployments to ensure secure, repeatable, and auditable operations.
- Contribute to platform R&D and experimentation in secure and disconnected environments.
- Help shape the UK DevSecOps strategy and infrastructure standards.
Requirements
- 5–7+ years of relevant experience in DevSecOps, systems engineering, and software development.
- Senior-level experience designing and building cloud-native platforms using AWS, Azure, or GCP.
- Experience with Kubernetes, Docker, and cloud-native application orchestration.
- Strong proficiency in Golang or similar programming languages.
- Experience deploying systems in air-gapped or classified environments.
- Experience building secure CI/CD pipelines and integrating security throughout the SDLC.
- Hands-on experience implementing or managing SIEM, monitoring, and alerting systems.
- Understanding of REST APIs, authentication flows, event-driven architecture, and microservice patterns.
- Familiarity with MOD Secure by Design, JSP 453, NCSC Cloud Security Principles, and NIST 800-53.
- Strong written and verbal communication, documentation, independent working, and prioritization skills.
- Proficiency using AI tools such as Claude and Gemini for coding, debugging, documentation, research, and problem-solving with appropriate human oversight.
- Certified AWS, Google, or Azure Solutions Architect certification.
- Prior experience in UK defence, national security, or regulated government environments.
- Experience with UK accreditation and risk-management processes, early-stage or high-growth startups, GitLab, Google Workspace, and Slack.
- Candidates must hold or be eligible to obtain Developed Vetting clearance and meet UK nationality and residency requirements.
Benefits
- Private medical, dental, and optical healthcare.
- Pension scheme with employer contribution.
- Wellness perks including fitness and mental health resources.
- Equity incentive plan and referral bonus scheme.
- Technology and home-office stipend.
- Annual professional development budget.
- Flexible paid time off plus UK public holidays.
- Enhanced parental leave.
- Primarily remote, UK-based work with travel expenses covered and frequent travel to customer and partner sites.
- Full-time permanent position; classified or air-gapped work requires on-site presence at accredited facilities.
Categories
About Second Front Systems
Second Front Systems builds a SaaS/PaaS platform that streamlines software accreditation, hosting, and continuous delivery on government and classified networks, helping vendors achieve ATO and FedRAMP/DoD IL compliance. It sells to U.S. defense and civilian agencies and to commercial ISVs entering regulated markets, supporting environments used by the DoD, UK Ministry of Defence, and NATO. The company is privately held and headquartered in Wilmington, Delaware.