Senior EKS Platform Engineer
We are seeking a Senior EKS Platform Engineer to own autoscaling, policy governance and release automation for a Kubernetes estate running on Amazon EKS. This role covers pod and node autoscaling enablement, admission-time policy enforcement through Gatekeeper and OPA, and GitOps release management built on Argo CD and Terraform. Delivery is AWS cloud-native, with multi-architecture node pools and custom tooling in scope.
Responsibilities
- Enable and tune horizontal and vertical pod autoscaling so workloads track demand without over-provisioning
- Configure Karpenter provisioners for node lifecycle and right-sizing against workload requirements
- Validate autoscaling behavior across multi-architecture node pools spanning AMD64 and ARM64
- Author Gatekeeper constraints and constraint templates that enforce cluster policy at admission time
- Implement mutating admission configuration so policy defaults apply consistently across namespaces
- Operate GitOps release management through Argo CD, including promotion gates and automated rollback paths
- Maintain Terraform modules that provision cluster infrastructure and policy baselines reproducibly
- Extend custom tooling supporting the release process to reduce manual intervention
Requirements
- 3+ years of experience with Amazon Elastic Kubernetes Service (EKS) and Kubernetes
- Expertise in Karpenter for node lifecycle management and workload right-sizing
- Expertise in Argo CD and Terraform for GitOps release management and infrastructure automation
- Advanced knowledge of Open Policy Agent for admission-time policy enforcement
- English proficiency at B2 level or higher
Nice to have
- Familiarity with AWS Cloud Development Kit
- Understanding of Argo Rollouts and Helm
- Background in CI/CD
