Senior Devops Engineer

📋 Job Overview

Oxford Dynamics is at an inflection point. We operate in some of the most complex and high-stakes environments in the world defence - national security, AI and robotics. The decisions we make now will define not just how fast we grow, but who we become. You will work closely with the whole team. You will be trusted with judgment calls. You will influence the business. And you will see the impact of your work every day.

🏢 About Oxford Dynamics

Founded in 2019, Oxford Dynamics is a fast-growing UK frontier technology company developing both digital and physical AI systems built to operate in dynamic, mission-critical environments. At the core of everything we build is AVIS™ (A Very Intelligent System), our orchestration platform: the intelligence layer that fuses multi-modal data, including text, imagery, telemetry and sensor feeds, so operators can interrogate complex information at speed and make better decisions under pressure. AVIS™ powers our digital decision products, such as ORION for multi-source decision-to-effect, and it powers our physical platforms, including STRIDER for CBRN operations and BARBARIAN for explosive ordnance disposal. The same brain reasons across the screen and the machine.

We work where wrong decisions can be catastrophic, partnering with defence and security organisations internationally to help protect nations, infrastructure and lives.

🎯 The Role

Oxford Dynamics is a small team who rely on a collaborative and positive approach and so the right attitude for this role is equally as important as experience. We are at an important stage and time in our growth, and as a Senior DevOps Engineer you will be an essential part of our success.

✅ Key Responsibilities

• End-to-end cloud ownership – architect, implement and maintain multi-account, multi-region environments using IaC (Terraform, Helm).
• Platform reliability & automation – manage Kubernetes clusters (EKS/OpenShift), container registries and service meshes; create GitHub Actions / Argo CD pipelines for zero-touch deployments.
• Security hardening – lead security-posture reviews, implement GuardDuty, CloudWatch and IAM best practices.
• SRE & monitoring – uphold SLAs through observability stacks, proactive alerting and performance tuning of distributed systems.
• Collaboration & enablement – automate repetitive tasks, mentor developers and champion DevSecOps best practice across teams.
• Policy & audit ownership - steward the regular audits we need to put in place to remain compliant with industry standards ensuring provenance.
• Backup & DR - design AWS Backup plans, run annual restore drills, maintain RPO/RTO dashboards.
• Capacity & cost optimisation - run the monthly Capacity & Availability Checklist; leverage Compute Optimizer, Savings Plans and Graviton.
• Drift detection - operate Terraform/Helm drift alerts, AMI & container image pipelines with Inspector v2 scanning.
• Incident & hot-fix response - coordinate emergency changes, rollbacks and post-incident reviews

📌 Required Qualifications

• Proven experience in DevOps / SRE, with recent focus on AWS cloud engineering.
• Expert in AWS core services (EC2, VPC, IAM, S3, ALB/ELB, CloudFront, ECR/ECS, Control Tower) and security tooling (GuardDuty, IAM Identity Center, CloudWatch).
• Strong Kubernetes (EKS/OpenShift) administration, Helm packaging and service-mesh know-how.
• Strong on-prem Kubernetes setup and administration
• Solid Nexus experience
• Proficient in IaC (Terraform, Terraform Cloud, CloudFormation), containerisation (Docker, Docker Compose) and Linux systems.
• Solid CI/CD engineering with GitHub Actions and Argo CD.
• Experience integrating SAST and DAST best practices.
• Scripting in Bash and Python or Go for automation
• Demonstrated success delivering cloud cost-optimisation and high-security solutions for enterprise clients
• Expertise in implementing SSO across a variety of industry standard software

⭐ Desirable Experience

• Experience with MLOps/LLMOps (Softwares such as Sagemaker, Kubeflow or ZenML)
• Deployment of on-premise Kubernetes
• Prometheus (or other stacks) observability
• Experience with AWS Karpenter & Compute Optimizer
• Compliance literacy - ISO 27001, NIST SSDF/OWASP SAMM, GDPR basics

🎁 Benefits

Join the most exciting growth area in the UK: AI and robotics. Every member of the Oxford Dynamics team has a major impact on the products and services we provide. Regardless of job title, you will have a significant role to play in our success.

🛂 Visa & Eligibility

No specific visa or eligibility information provided.