Principal Engineer (Cloud) – AWS

Overview

Join QinetiQ, a defence technology leader, to shape cloud foundations for critical systems. In this role you will lead the cloud strategy, architect multi-region AWS environments, and advise engineering leadership. You will mentor engineers, foster a culture of peer review and operational excellence, and drive cross‑functional collaboration. You will optimise costs, build internal developer platforms and CI/CD pipelines using IaC tools, and align cloud work with product roadmaps. This role offers high-impact work in a mission-driven environment with a focus on reliability and security.

Pay / Benefits

• matched pension with life assurance
• generous holiday allowance
• Health Cash Plan
• Private Medical Insurance
• Dental Insurance
• volunteering opportunities

Responsibilities

• Architect complex, multi-region AWS environments aligned with business goals
• Evaluate emerging AWS services and tools to shorten time-to-market
• Guide technical decision-making across engineering squads
• Maintain modular codebases using Terraform/AWS CDK/Pulumi
• Architect internal developer platforms and enterprise-grade CI/CD frameworks
• Implement AWS cost optimisation and resolve performance bottlenecks in microservices, databases, and networks
• Provide technical leadership and mentorship to senior, mid-level and junior engineers
• Participate in on-call rota to maintain service availability

Key requirements

• Extensive experience in AWS cloud infrastructure
• Expert knowledge of AWS ecosystem including complex networking and security configurations
• Strong Infrastructure as Code and configuration management expertise
• Proficiency in at least one modern programming language (Python, Go, Java, or Node.JS)
• Experience leading large technical projects and cross-team collaboration
• Proven track record designing, deploying and maintaining large-scale distributed systems

• leadership
• cross-functional collaboration
• mentorship
• Terraform
• AWS CDK
• Pulumi

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