DevOps Engineer

DevOps EngineerDevOps Engineer Company: LCS Defense Clearance: Active TS/SCI with Full-Scope Polygraph required Experience: 5+ years of relevant DevOps engineering experience Location: Jessup, MD; Arlington, VA; Herndon, VA OR Denver, COPosition Overview LCS Defense is seeking a DevOps Engineer to build, maintain, and operate a classified development environment (CDE) and unclassified development infrastructure. This role supports AWS infrastructure, GitLab administration, CI/CD pipelines, developer workstations, and incident response. The engineer will maintain reliable development services in both standard and air-gapped environments, including a logically isolated environment in an AWS Secret Cloud region.Key ResponsibilitiesDeploy and maintain AWS infrastructure using AWS Cloud Development Kit (CDK) in TypeScript and scripting, including cloud networking configuration.Configure and maintain a logically isolated classified development environment in an AWS Secret Cloud region.Administer, upgrade, and troubleshoot GitLab in standard and air-gapped configurations, including pipelines, runners, user access, and version control management.Support GitLab upgrades to current versions, including planning, validation, and troubleshooting.Manage the GitLab runner fleet and resolve traffic and capacity issues to maintain healthy CI/CD pipelines.Respond to Severity 2 (Sev2) incidents affecting development infrastructure, driving triage, mitigation, and root cause resolution.Monitor system health and perform routine patching and updates across hosted services.Provision, patch, and maintain developer desktops and workstations, including Amazon WorkSpaces and DevDesktop environments.Manage engineering software tools and licensing, including SolidWorks, Altium, Cameo, and ANSYS HPC.Implement and validate two-person, malware-scanned ingress and egress pipelines for transferring data and packages across the classified boundary.Build and maintain air-gapped package mirrors for Linux/GNU packages, Python packages, Rust crates, operating system repositories, and Docker images.Establish package mirror refresh schedules and track Common Vulnerabilities and Exposures (CVEs) and software licenses.Required QualificationsActive TS/SCI clearance with Full-Scope Polygraph.At least 5 years of relevant DevOps engineering experience.Experience deploying and maintaining AWS infrastructure using CDK in TypeScript, scripting, and cloud networking configuration.Experience supporting isolated AWS environments, including classified development infrastructure.Experience administering, upgrading, and troubleshooting GitLab, including air-gapped deployments.Experience managing CI/CD pipelines and GitLab runner fleets.Strong Linux and Windows administration skills, including Linux command-line tools and shell scripting.Experience monitoring infrastructure, applying patches, and maintaining developer workstations.Experience responding to infrastructure incidents and performing root cause analysis.Experience provisioning WorkSpaces or comparable developer desktop environments.Experience managing engineering software tools and licensing.Experience implementing controlled data transfers and maintaining air-gapped package repositories, including vulnerability and license tracking.