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Containerization Specialist
24 hours ago
Job Title: Containerization Specialist
Warner Bros. Discovery is looking for a talented Containerization Specialist to join our Direct to Consumer (DTC) Operational Engineering team. This role involves designing, building, and operating a secure, efficient, and scalable container runtime platform using Kubernetes and other related technologies.
Key Responsibilities
- Design and implement automated processes for upgrading Kubernetes clusters, ensuring seamless execution and minimizing downtime.
- Develop and maintain tools for scanning clusters for remediation opportunities, defining actions, and executing them.
- Collaborate with the team to identify automation opportunities, reducing toil needed during cluster upgrades, impacting hundreds of clusters with up to a thousand nodes.
- Implement regular security patch rollouts to Kubernetes nodes (EC2 AMI updates), ensuring PCI compliance and continuously improving automation tooling.
- Participate in cost optimization efforts, leveraging expertise to tweak Karpenter node scaling strategies, increase pod bin-packing efficiency, select optimal node families, and identify over-scaled infrastructure.
- Contribute to automating new Kubernetes cluster creation, bootstrapping critical platform capabilities, and enabling faster time-to-market for new tenants.
Requirements
- At least 1-2 years of Kubernetes experience.
- At least 1-2 years of AWS experience.
- At least 2-3 years of software development, infrastructure management, or operations experience.
- Proficiency in writing code for automation in Python, Bash, or Go.
- Experience with designing infrastructure CI/CD pipelines using Jenkins or GitHub Actions.
- Familiarity with Infrastructure as Code (IaC) using Terraform.
- Understanding of Helm templating for Kubernetes manifests.
- Knowledge of GitOps tooling like ArgoCD or Flux.
- Experience with rolling out infrastructure changes to production through change management workflows.
- Understanding of how to monitor metrics during change rollouts.
- Strong ownership mentality during rollouts, stop/rollback, and fix if problems occur or escalate to management/on-call if getting stuck.
- Understanding of how running workloads may be affected by cluster changes or node rotations.
- Willingness to communicate with service development teams to understand their challenges when reporting problems during maintenance windows.
- Ability to define and measure KPIs and honor SLAs for infrastructure maintenance.
- Experience with Git and GitHub PR workflows.
- Experience working with Agile – Sprints, Epics/Stories, Jira.
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