Salary: £100,000 - 100,000 per year
Requirements
- Proven professional experience in DevOps, SRE or Cloud Engineering, with recent hands-on AWS experience.
- Expert knowledge of core AWS services including EC2, VPC, IAM, S3, ALB/ELB, CloudFront, ECR/ECS and Control Tower.
- Strong experience with AWS security tooling, including GuardDuty, IAM Identity Center and CloudWatch.
- Significant experience administering Kubernetes, particularly EKS and/or OpenShift.
- Strong knowledge of Helm and Kubernetes application deployment.
- Experience building and administering on-premises Kubernetes environments.
- Experience with Nexus or comparable enterprise artifact repositories.
- Strong Infrastructure as Code experience with Terraform, Terraform Cloud and/or CloudFormation.
- Strong containerisation experience using Docker and Docker Compose.
- Excellent Linux systems administration skills.
- Strong CI/CD experience with GitHub Actions and Argo CD.
- Experience implementing SAST and DAST within software delivery pipelines.
- Strong scripting and automation skills using Bash, Python and/or Go.
- Experience delivering secure, highly available and cost-efficient cloud platforms.
- Experience implementing SSO across enterprise and industry-standard software platforms.
- A strong understanding of infrastructure security, reliability and operational best practice.
- Applicants must be eligible to obtain UK security clearance.
- Hold a UK passport.
- Have 5 years of continuous UK residency.
- Be eligible for BPSS and SC clearance.
- Active, transferable SC clearance is particularly attractive; DV clearance is an additional advantage.
- Experience with MLOps or LLMOps, SageMaker, Kubeflow or ZenML would be advantageous.
- Extensive on-premises Kubernetes deployment experience would be advantageous.
- Experience with Prometheus or comparable observability platforms would be advantageous.
- Experience with AWS Karpenter or AWS Compute Optimizer would be advantageous.
- Experience operating highly distributed systems would be advantageous.
- Familiarity with ISO 27001, NIST SSDF, OWASP SAMM or similar security frameworks would be advantageous.
- Understanding of GDPR fundamentals would be advantageous.
- Experience working within defence, national security, critical infrastructure or other regulated environments would be advantageous.
- Strong communication skills and the ability to work collaboratively in a small engineering team.
- Ability to work independently, take ownership and support or mentor other engineers.
Responsibilities
- Design, build 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.
- 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 reliability.
- Design and maintain modern CI/CD pipelines using GitHub Actions and Argo CD.
- Enable automated, repeatable and low-risk deployments.
- Implement GitOps practices where appropriate.
- Automate repetitive operational processes using Bash, Python or Go.
- Support zero-touch deployment and infrastructure provisioning.
- Lead cloud security and infrastructure posture reviews.
- Implement and maintain AWS security best practices across IAM, networking and workloads.
- Work with services such as GuardDuty, CloudWatch and IAM Identity Center.
- Integrate SAST and DAST practices into development and deployment pipelines.
- Maintain secure software supply chains, including AMI and container image scanning.
- Implement and monitor infrastructure and application security controls.
- Support the organisations ongoing compliance and certification requirements.
- Establish and maintain observability across distributed systems.
- Develop proactive monitoring, alerting and performance-tuning strategies.
- Help maintain service-level objectives and platform availability.
- Investigate and resolve infrastructure and application incidents.
- Coordinate emergency changes, hot fixes and rollbacks.
- Lead post-incident reviews and implement improvements to prevent recurrence.
- Design and maintain AWS Backup strategies.
- Establish and test disaster recovery processes.
- Run regular restore and recovery exercises.
- Maintain appropriate RPO/RTO reporting and dashboards.
- Ensure critical infrastructure can be recovered reliably when required.
- Monitor infrastructure utilisation, availability and capacity.
- Lead regular capacity and availability reviews.
- Identify opportunities for AWS cost optimisation.
- Make effective use of AWS Compute Optimizer, Savings Plans and Graviton.
- Balance performance, availability, security and cost when making infrastructure decisions.
- Support regular technical and security audits.
- Maintain infrastructure provenance and configuration records.
- Implement infrastructure drift detection across Terraform and Helm.
- Help ensure engineering practices remain aligned with relevant industry standards.
- Work with development teams to embed DevSecOps practices throughout the software lifecycle.
- Take ownership and work independently across multiple technical areas when required.
- Communicate clearly with technical and non-technical stakeholders and work directly with clients when necessary.
Technologies
- AI
- AWS
- Bash
- CI/CD
- Cloud
- CloudWatch
- DevSecOps
- DevOps
- Docker
- EC2
- GitHub
- GitOps
- Helm
- IAM
- Support
- Karpenter
- Kubeflow
- Kubernetes
- Linux
- MLOps
- Nexus
- OWASP
- OpenShift
- Prometheus
- Python
- Robotics
- Security
- Terraform
- Architect
More
We are a fast-growing UK technology company developing advanced AI and robotics systems for defence, national security, critical infrastructure and other mission-critical environments. This is a senior, hands-on DevOps engineering role with genuine ownership of our cloud and platform infrastructure, the opportunity to influence architecture and DevSecOps practices, and a clear path towards technical or design leadership. You will work in a small, highly collaborative engineering team with flexible hybrid working in the Greater Oxford Area. Benefits include a competitive salary, company pension with employer contribution, private healthcare, 29 days annual leave plus public holidays, and the chance to work on advanced AI, robotics and cloud infrastructure in a role with significant technical ownership.
last updated 40 week of 2026