DevOps Engineer

DevOps EngineerMANTECH seeks a motivated, career and customer-oriented DevOps Engineer to join our team in Herndon, Virginia. In the role of DevOps Engineer, you will be responsible for the end-to-end management of our bare-metal Linux and Kubernetes infrastructure. You will drive innovation by seamlessly integrating GPU-accelerated nodes and streamlining application deployments through automated GitOps workflows. Your expertise in Kubernetes and infrastructure automation will directly enable our high-performance computing capabilities within highly secure, air-gapped environments.Responsibilities include but are not limited to:Administer, secure, and maintain bare-metal servers running Enterprise Linux 8 and 10.Provision, upgrade, and manage multi-cluster Kubernetes environments utilizing Rancher.Deploy and manage core Kubernetes resources by developing scalable YAML manifests and Helm charts, including StatefulSets, Deployments, DaemonSets, ConfigMaps, Secrets, and Persistent Volumes.Build and maintain GitOps-driven deployment pipelines and automated cluster synchronization using ArgoCD.Integrate and maintain standard CI/CD pipelines and version control workflows via Git.Document all work in JIRA and ConfluenceMinimum Qualifications:High School Diploma and 4+ years of Linux system administration experience.Experience in Enterprise Linux.2+ years of hands-on Kubernetes experience, or an active Certified Kubernetes Administrator (CKA) credential1+ years' experience managing version control workflows, repository management, and CI/CD pipeline integrations using GitLab or Bitbucket.Preferred Qualifications:Bachelor's Degree in Computer Science or relevant technical field.Experience deploying, patching, and maintaining Linux and Kubernetes infrastructure within an air-gapped network environment with zero internet connectivity.Experience implementing GitOps-driven deployment pipelines and automated cluster synchronization via ArgoCD.Experience configuring Kubernetes worker nodes with NVIDIA GPUs, including the installation and troubleshooting of the NVIDIA Container Toolkit, CUDA drivers, and GPU operators.Experience utilizing bare-metal IPMI/iLO/iDRAC for out-of-band server hardware management, remote console/firmware management, and telemetry monitoring.Experience handling multi-cluster administration, ingress control, and configuring RBAC security policies via RancherClearance Requirements:Current/active TS/SCI with polygraph clearance is required.Physical Requirements:The person in this position must be able to remain in a stationary position 50% of the time.