Senior DevOps Engineer

Senior DevOps Engineer AWS / Kubernetes / DevSecOps Location: Greater Oxford Area Hybrid

Contract: Permanent

Working Pattern: Flexible & Hybrid

Salary: Competitive

Security Clearance: UK security clearance eligibility required (British Passport + 5 years of continuous residency in the UK)

About the Role We are working with a fast-growing UK technology company developing advanced AI and robotics systems for defence, national security, critical infrastructure and other mission-critical environments.

The business is looking for a Senior DevOps Engineer to take ownership of the cloud and platform infrastructure underpinning its next generation of AI products.

This is a hands-on senior engineering position for someone with deep expertise across AWS, Kubernetes, infrastructure as code, CI/CD and cloud security .

You'll be responsible for designing, building and maintaining highly available infrastructure, automating software delivery, strengthening cloud security and helping establish the operational processes required to support a growing technology organisation.

You'll have genuine ownership of the platform and the opportunity to influence architecture, engineering standards and DevSecOps practices across the wider team.

What You'll Be Doing

Cloud & Infrastructure Architect, implement and maintain multi-account, multi-region AWS environments .

Build and manage infrastructure using Terraform, Terraform Cloud, Helm and CloudFormation .

Design scalable, secure and highly available cloud-native infrastructure.

Manage container registries and supporting platform services.

Maintain and improve on-premises infrastructure where required.

Kubernetes & Platform Engineering Administer and optimise Kubernetes environments , including AWS EKS and OpenShift.

Manage Helm-based application deployments and platform configuration.

Support service-mesh technologies and distributed application architectures.

Build robust container platforms using Docker and related technologies.

Develop automation to reduce operational overhead and improve platform ...