Enterprise Systems Administrator MDX - SSFB/HSV

Amentum•Colorado Springs, CO

8d•$90,000 - $110,000•Onsite

About The Position

The Enterprise Systems Administrator is part of Amentum’s Missile Defense Division and directly supports the Missile Defense Agency. The role supports enterprise applications and infrastructure services across Windows Server, cloud and SaaS environments, containers, and Kubernetes platforms. The position is based at Schriever Space Force Base in Colorado Springs, Colorado, or Redstone Arsenal in Huntsville, Alabama; remote work is unavailable. A DoW Secret clearance is required. The role requires a day shift and travel of up to 10%. Occasional after-hours support and participation in maintenance windows are expected. Relocation assistance is unavailable. The selected candidate may be assigned as an employee of a teammate company. The administrator maintains systems’ availability, integrity, performance, and security; implements cybersecurity and configuration requirements; responds to incidents and service requests; documents systems and operational procedures; and coordinates with technical teams to support mission requirements. The position requires at least one year of directly related experience, an active DoW Secret clearance, and an approved DoD 8570/8140-aligned Level II certification such as CompTIA Security+ CE or higher.

Requirements

At least one year of directly related experience.
Experience administering and maintaining Microsoft Windows Server environments, preferably including Windows Server 2022 and/or Windows Server 2025.
Experience implementing defined cybersecurity controls, vulnerability remediation, system hardening, and STIG compliance activities.
Familiarity with Kubernetes concepts, including deployments, services, namespaces, role-based access control, configuration management, monitoring, and troubleshooting.
Familiarity with cloud-hosted or SaaS applications, including service monitoring, tenant administration, access management, and incident coordination.
Strong troubleshooting, technical documentation, customer-support, communication, and teamwork skills.
Ability to adapt to changing priorities and learn emerging technologies.
Experience supporting Microsoft Azure, Amazon Web Services (AWS), or hybrid-cloud environments.
Experience with scripting and automation, preferably PowerShell; familiarity with Python, Bash, Ansible, Terraform, or equivalent tools.
Experience establishing, maintaining, and following documented technical processes and procedures.
An approved DoD 8570/8140-aligned Level II certification, such as CompTIA Security+ CE or higher, as required by the contract.
Active DoW Secret Security Clearance.

Nice To Haves

One or more relevant technical certifications in Microsoft Windows Server, Azure, AWS, Kubernetes, containers, virtualization, or automation.
Experience with BMC Helix/Remedy or comparable IT service-management tools.
Experience supporting Microsoft Azure, AWS, or hybrid-cloud environments.
Experience administering or supporting Kubernetes platforms such as Azure Kubernetes Service, Red Hat OpenShift, Rancher, or comparable enterprise Kubernetes distributions.
Experience supporting Windows and/or Linux containers in enterprise environments.
Experience with scripting and automation, preferably PowerShell; familiarity with Python, Bash, Ansible, Terraform, or equivalent tools.
Experience supporting Infrastructure as Code, configuration management, automated deployments, continuous integration/continuous delivery pipelines, source control, or artifact repositories.
Experience administering or supporting Microsoft 365, Microsoft Entra ID, or comparable enterprise SaaS platforms.
Experience establishing, maintaining, and following documented technical processes and procedures.
Relevant technical certifications in Microsoft Windows Server, Azure, AWS, Kubernetes, containers, virtualization, or automation.

Responsibilities

Administer, maintain, and troubleshoot Windows Server environments, including Windows Server 2022 and Windows Server 2025.
Perform operating system and application maintenance, account and access management, patching, vulnerability remediation, STIG compliance, configuration management, and general systems administration.
Support virtualized, hybrid-cloud, and SaaS environments, including tenant administration, identity and access management, service configuration, monitoring, incident response, and vendor coordination as applicable.
Deploy, configure, maintain, and troubleshoot containerized applications using approved container technologies and registries.
Support Kubernetes platforms and workloads, including application deployments, namespaces, role-based access control, configuration and secret management, monitoring, troubleshooting, and patching.
Support Windows and Linux container workloads in accordance with approved security, operational, and availability requirements.
Assist with automation and repeatable deployment processes using PowerShell, Desired State Configuration, Ansible, Terraform, or equivalent approved tools.
Perform daily monitoring to verify the availability, integrity, performance, and security posture of systems, applications, containers, and associated infrastructure.
Respond to incidents, service requests, and user-support requirements across multiple platforms; document troubleshooting, corrective actions, and lessons learned.
Maintain technical documentation, standard operating procedures, configuration baselines, system diagrams, and recovery procedures.
Coordinate with cybersecurity, network, cloud, application-development, and service-delivery teams to resolve technical issues and support mission requirements.
Participate in maintenance windows and provide occasional after-hours support.
Perform other duties in support of the Service Delivery Team.