Principal Platform Engineer (AWS)

Job summary

The Principal Platform Engineer shapes cloud and platform engineering strategy while building secure, scalable platforms and developer tooling for government and regulated-industry software. The role covers AWS architecture, internal developer platforms, CI/CD and infrastructure automation, AI/ML and LLM infrastructure, and improvements to security, reliability, developer productivity, and cloud costs.

Qualifications

• Extensive experience designing and architecting production-grade AWS environments.
• Hands-on experience building internal developer platforms, self-service infrastructure, and reusable engineering capabilities.
• Expertise in DevOps, CI/CD, and Infrastructure as Code.
• Experience with microservices, containers, serverless technologies, and distributed systems.
• Experience managing AI/ML infrastructure and LLM platforms.
• Programming and automation skills using Python, Go, or Java.
• Understanding of cloud security, identity and access management, networking, and compliance frameworks.
• Experience with Backstage or similar developer portal technologies.
• Ability to influence technical strategy, mentor engineers, and collaborate with senior stakeholders.
• Valid NV1 clearance or ability to obtain one.

Responsibilities

• Define architecture, standards, and roadmaps for AWS platforms, DevOps tooling, and internal developer platforms.
• Build scalable self-service infrastructure and developer tooling.
• Establish practices for CI/CD, Infrastructure as Code, repository management, and deployment automation.
• Design and manage infrastructure for AI/ML workloads, LLM platforms, model deployment, and AI service orchestration.
• Embed security, governance, scalability, and operational resilience into platform architecture and engineering practices.
• Influence architectural decisions and mentor engineers across product teams.
• Improve platform efficiency, reliability, and AWS resource utilisation.
• Evaluate emerging cloud, platform engineering, and AI technologies.

Skills

Languages

Industry

Security clearance

Relocation