Senior Systems / DevSecOps Engineer (Travel) - Active TS/SCI with Polygraph Clearance

Senior Systems / DevSecOps Engineer

Clearance: Active TS/SCI with Polygraph
We are seeking an experiencedSenior Systems / DevSecOps Engineer to support the administration, integration, deployment, and sustainment of complex Linux-based systems in a mission-critical environment. The ideal candidate will have strong experience acrossLinux systems administration, networking, Kubernetes, containerization, cloud environments, and DevSecOps automation.

This position supports the installation, configuration, integration, testing, and ongoing maintenance of enterprise and mission systems across development, test, laboratory, and operational environments. The successful candidate will work across infrastructure and application layers to troubleshoot complex issues, improve system reliability, and support new system deployments.

Responsibilities

• PerformLinux systems administration, configuration, troubleshooting, upgrades, and maintenance.
• Travel as required to support information system installation, maintenance, integration, and troubleshooting.
• Support system installation, integration, configuration, testing, deployment, and sustainment activities.
• Design, configure, and maintain network infrastructure supporting distributed systems.
• AdministerLAN/CAN/WAN environments and troubleshoot network connectivity and performance issues.
• Configure and optimize network connectivity between front-end and back-end systems.
• Work withCisco and Arista network equipment.
• Design and implement solutions involving a variety of network and infrastructure components.
• Deploy and maintain applications usingDocker and Kubernetes.
• Configure and administer Kubernetes clusters with an emphasis onhigh availability, scalability, security, and reliability.
• Support containerized applications and cluster orchestration across development, test, and operational environments.
• Build and maintainCI/CD pipelines using tools such as Jenkins and GitLab.
• Develop and maintainInfrastructure as Code (IaC) using Ansible and/or Terraform.
• Develop automation and system administration scripts usingPython and Bash.
• Monitor and troubleshoot hybrid cloud and virtualized environments.
• Participate in system integration, testing, deployment, and operational troubleshooting.
• Investigate system and network problems, identify root causes, and implement corrective actions.
• Support mission-critical systems and respond to operational discrepancies as required.
• Create and maintain technical documentation, system configurations, and deployment procedures.
• Provide24/7 on-call support for critical operational issues.

Required Qualifications

• 12 years of experience supporting software and system deployments, Linux system administration, containerization, cloud deployments, and DevSecOps environments.
• Strong hands-on experience administeringLinux, preferably RHEL/CentOS.
• Recent hands-on experience withKubernetes within the last 3 years.
• Recent experience withcluster orchestration within the last 3 years.
• Recent experience withcontainerization within the last 3 years.
• Experience withDocker and Kubernetes in production or mission-critical environments.
• Experience with network administration, configuration, and troubleshooting.
• Experience withCisco and Arista network devices.
• Experience withPython and Bash scripting.
• Experience withJenkins, GitLab, or similar CI/CD platforms.
• Experience withAnsible and/or Terraform for infrastructure automation.
• Experience supportingcloud, hybrid-cloud, and virtualized environments.
• Ability to troubleshoot complex issues across operating systems, networks, containers, and infrastructure.
• Ability to support24/7 on-call operations for critical system discrepancies.
• Willingness to travel for system installation, maintenance, and troubleshooting.

Education

• Bachelor of Science in Engineering, Computer Science, or a related technical discipline.
• Four additional years of relevant experience may be substituted for a Bachelor's degree.
• AMaster of Science in Engineering or Computer Science may substitute for two years of required experience.

Certifications

• ActiveIAT Level II / DoD 8570-compliant certification, such asSecurity+.
• CCNA certification required.

Clearance Requirements

• Active TS/SCI clearance with a polygraph.
• Polygraph must have been completedwithin the last seven years.

This is a hands-on engineering position requiring recent Kubernetes and containerization experience, strong Linux administration skills, and the ability to work across networking, cloud, and DevSecOps environments.