Enterprise Systems Administrator MDX - SSFB/HSV

The Enterprise Systems Administrator is part of Amentum’s Missile Defense Division and directly supports the Missile Defense Agency (MDA). The candidate will:

• Administer, maintain, and troubleshoot Windows Server environments, including Windows Server 2022 and Windows Server 2025, supporting enterprise applications and infrastructure services.

• Perform operating system and application maintenance; account and access management; patching; vulnerability remediation; Security Technical Implementation Guide (STIG) compliance; configuration management; and general systems administration.

• Support virtualized, hybrid-cloud, and Software as a Service (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-based 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.

Resumes, in month and year format, must be submitted with application in order to be considered for the position. The selected candidate may be assigned as an employee for one of our teammate companies.

• Must have 1, or more, year of directly related experience

• Must have experience administering and maintaining Microsoft Windows Server environments, preferably including Windows Server 2022 and/or Windows Server 2025.

• Must have experience implementing defined cybersecurity controls, vulnerability remediation, system hardening, and Security Technical Implementation Guide (STIG) compliance activities.

• Must be familiar with Kubernetes concepts, including deployments, services, namespaces, role-based access control, configuration management, monitoring, and troubleshooting.

• Must be familiar with supporting cloud-hosted or Software as a Service (SaaS) applications, including service monitoring, tenant administration, access management, and incident coordination.

• Must have strong troubleshooting, technical documentation, customer-support, communication, and teamwork skills.

• Must be able to adapt to changing priorities and learn emerging technologies.

• Must have experience supporting Microsoft Azure, Amazon Web Services (AWS), or hybrid-cloud environments.

• Must have experience with scripting and automation, preferably PowerShell; familiarity with Python, Bash, Ansible, Terraform, or equivalent tools.

• Must have experience establishing, maintaining, and following documented technical processes and procedures.

• Must have an approved DoD 8570/8140-aligned Level II certification, such as CompTIA Security+ CE or higher, as required by the contract.

• Must have an active DoW Secret Security Clearance

Desired Requirements:

• Have 1, 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, Amazon Web Services (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 with BMC Helix/Remedy or comparable IT service-management tools.

• Experience establishing, maintaining, and following documented technical processes and procedures.

• Relevant technical certifications in Microsoft Windows Server, Azure, AWS, Kubernetes, containers, virtualization, or automation.

This position will be posted for a minimum of 3 days. If a candidate has not been selected at that time, it will continue to be posted until a suitable candidate is selected or the position is closed.

Our health and welfare benefits are designed to support you and your priorities. Offerings include:

• Health, dental, and vision insurance
• Paid time off and holidays
• Retirement benefits (including 401(k) matching)
• Educational reimbursement
• Parental leave
• Employee stock purchase plan
• Tax-saving options
• Disability and life insurance
• Pet insurance

Note: Benefits may vary based on employment type, location, and applicable agreements. Positions governed by a Collective Bargaining Agreement (CBA), the McNamara-O’Hara Service Contract Act (SCA), or other employment contracts may include different provisions/benefits.