Senior DevOps Engineer: Cloud, Security & CI/CD (Hybrid)

Oxford Dynamics Limited; United Kingdom; Hybrid; GBP 90,000 - 130,000; Full time

Benefits offered by this job

Flexible & Hybrid working pattern

Private healthcare

Company pension

29 days holiday plus public holidays

Job summary

Oxford Dynamics Limited seeks a Senior DevOps Engineer to own end-to-end cloud systems, focusing on AWS, Kubernetes and modern CI/CD. You will drive secure, scalable infrastructure and champion cost-efficient platforms while aligning with industry standards.

You will design, implement and audit multi-account environments, automate delivery pipelines, mentor teams and ensure high availability in production environments.

Qualifications

• Proven experience in DevOps / SRE with AWS cloud engineering.
• Expert in AWS core services (EC2, VPC, IAM, S3, ALB/ELB, CloudFront, ECR/ECS) and security tooling (GuardDuty, IAM Identity Center, CloudWatch).
• Strong Kubernetes (EKS/OpenShift) administration, Helm packaging and service-mesh know-how.
• 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.

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, registries and service meshes; create pipelines for zero-touch deployments.
• Security hardening – lead security posture reviews and implement security tooling.
• SRE & monitoring – uphold SLAs via observability stacks and proactive alerting.
• Collaboration & enablement – automate tasks, mentor developers and promote DevSecOps across teams.
• Policy & audit ownership - steward audits to remain compliant with industry standards.
• Backup & DR - design AWS Backup plans, run annual restore drills, maintain RPO/RTO dashboards.
• Capacity & cost optimisation - monitor capacity and apply cost-saving measures.
• Drift detection - manage Terraform/Helm drift alerts and image pipelines with Inspector v2.
• Incident & hot-fix response - coordinate emergency changes, rollbacks and post-incident reviews.

Skills

DevOps

SRE

AWS cloud engineering

Kubernetes administration

CI/CD engineering

Scripting Bash/Python/Go

Security tooling

Cost optimisation

Tools

AWS

Kubernetes

Helm

Terraform

CloudFormation

Docker

GitHub Actions

Argo CD

GuardDuty

CloudWatch

Nexus

Prometheus

Karpenter

Compute Optimizer

Job description

Oxford Dynamics Limited seeks a Senior DevOps Engineer to own end-to-end cloud systems, focusing on AWS, Kubernetes and modern CI/CD. You will drive secure, scalable infrastructure and champion cost-efficient platforms while aligning with industry standards.

You will design, implement and audit multi-account environments, automate delivery pipelines, mentor teams and ensure high availability in production environments.