Kubernetes & OpenShift Administrator

VMC Soft Technologies, Inc; Rosemead (CA); On-site; USD 120,000 - 170,000; Full time

Job summary

VMC Soft Technologies in Rosemead, CA seeks a hands-on Kubernetes & OpenShift Administrator to deploy, manage, upgrade, and troubleshoot enterprise container platforms on Linux. You will implement GitOps, CI/CD pipelines, Helm, Argo CD, and Nexus, ensuring secure, highly available clusters and reliable software delivery.

Responsibilities include platform lifecycle, OpenShift operators, ACM multicluster management, automation scripts in Bash/Groovy, and collaboration across DevOps and application

Qualifications

• Hands-on administration of Kubernetes and Red Hat OpenShift clusters.
• Experience with OpenShift Operators and high-availability container platforms on Linux.
• Strong Linux troubleshooting, logging, and performance analysis.

Responsibilities

• Deploy, configure, upgrade, and troubleshoot Kubernetes and OpenShift clusters on Linux.
• Manage OpenShift environments, including ACM multi-cluster management and Operators.
• Lead application onboarding with Helm, Argo CD, Git, and GitOps workflows.

Skills

Kubernetes administration

OpenShift administration

Linux administration

Argo CD

GitOps

Helm

Jenkins & Groovy

Nexus

Bash scripting

Networking & certificates

Tools

ACM (Advanced Cluster Management)

OpenShift Operators

Nexus Repository

Jenkins CI/CD

RHEL Linux

Docker

Job description

Kubernetes & OpenShift Administrator

Location: Rosemead, CA

Role Overview

We are seeking a hands-on Kubernetes & OpenShift Administrator to deploy, administer, upgrade, and troubleshoot enterprise container platforms and their underlying Linux environments. The role combines platform operations, GitOps, CI/CD automation, and application onboarding to maintain secure, highly available, fault-tolerant clusters and support reliable software delivery. The ideal candidate brings practical administration experience across both Kubernetes and Kubernetes & OpenShift Administrator strong troubleshooting skills, and the ability to collaborate with application and infrastructure teams.

Key Responsibilities

• Platform deployment and lifecycle management: Install, configure, administer, upgrade, and troubleshoot Kubernetes and Red Hat OpenShift clusters on Linux, maintaining cluster health, availability, performance, and security.
• OpenShift administration: Manage OpenShift Container Platform (OCP) environments and Operator installations and upgrades; support multicluster management using Advanced Cluster Management (ACM), where applicable.
• Application onboarding and GitOps: Manage application configuration, packaging, and deployments using Helm charts, Argo CD, Git, and GitOps workflows.
• CI/CD engineering: Build and maintain Jenkins pipelines using Groovy and shared libraries; integrate source control, Nexus repositories, and Kubernetes/OpenShift deployment workflows. Support GitHub CI/CD where applicable.
• Troubleshooting and incident resolution: Diagnose and resolve cluster, application, and infrastructure issues involving pods, services, ingress, networking, DNS, certificates, container runtimes, and deployment pipelines.
• Automation and artifact management: Develop Bash and Groovy scripts to automate deployment, integration, monitoring, and routine operations; manage build artifacts, container images, and dependencies using Nexus and Git repositories.
• Linux administration: Install, configure, upgrade, and troubleshoot Red Hat Linux systems; perform system monitoring, log analysis, and performance tuning supporting container platforms.
• Platform security: Apply role-based access control (RBAC), network policies, and applicable pod security controls to support secure cluster and workload operations.
• Modernization and delivery practices: Support migration of monolithic applications to microservices on Kubernetes/OpenShift and establish consistent containerization, CI/CD, and automated testing practices.
• Collaboration and knowledge sharing: Work with application, DevOps, and infrastructure teams to resolve deployment dependencies and operational issues; mentor junior team members and share platform administration practices.

Required Technical Skills & Experience

• Strong hands-on administration experience with both Kubernetes and Red Hat OpenShift, including cluster installation, configuration, upgrades, ongoing operations, and troubleshooting.
• Experience administering OpenShift Operators and supporting highly available, fault-tolerant container platforms on Linux.
• Strong Linux administration and troubleshooting skills, particularly with Red Hat Linux, including system logs, monitoring, and performance analysis.
• Practical experience with Argo CD, GitOps, Helm, and Git for application configuration, packaging, and repeatable deployments.
• Experience building and maintaining Jenkins CI/CD pipelines, including Groovy scripting and shared libraries.
• Experience with Nexus Repository for build artifacts, dependencies, and container image management.
• Strong Bash and Groovy scripting skills for deployment and operational automation.
• Solid understanding of containerization, Docker concepts, container runtime fundamentals, Kubernetes networking, pods, services, ingress, DNS, and certificates.
• Working knowledge of RBAC, network policies, and pod security controls applicable to Kubernetes/OpenShift environments.
• Demonstrated ability to troubleshoot complex application and infrastructure issues and collaborate effectively across technical teams.

Preferred Platform Experience

• Administration of RKE2-based Kubernetes environments.
• Installation and operation of Advanced Cluster Management (ACM) for OpenShift multicluster management.
• Installation and administration of OpenShift clusters (multi-nodes).
• Installation and upgrade support for IBM Cloud Pak applications on OpenShift.
• GKE setup and operational support.
• Experience with GitHub CI/CD and automated testing integration.
• Installation and configuration of Linux/CentOS guest operating systems in VMware ESXi environments.
• Migration of monolithic applications to containerized microservices and mentoring junior administrators.