109 open roles

ME00696-Senior Windows System Administrator

Open Posted today

At a glance

Type
Full Time
Location
Maryland
Posted
Oct 12, 2026
Company size
Startup (1-50)
Industry
Technology/Software

About the role

Job Summary

Seeking a senior Windows System Administrator to join a high‐performing Agile team operating within the Scaled Agile Framework (SAFe) in support of a complex, fast‐paced program

The selected candidate will provide daily systems administration and operations and maintenance support across multiple systems with a broad geographic footprint

Key responsibilities include responding to system engineering requests that support operational requirements, as well as engineering, deploying, and sustaining new capabilities within the environment

Primary Responsibilities

  • Maintaining multiple virtual server clusters and addressing system scan findings, vulnerability management patching, and Active Directory configuration issues
  • Using enterprise monitoring tools to detect, assess, and respond to alerts
  • Providing technical support to partner workgroups on overlapping efforts while maintaining strong interdepartmental collaboration
  • Managing Information Assurance Vulnerability Alerts (IAVAs) and system security scanning in accordance with applicable System Security Plans, ensuring vulnerabilities are identified and remediated quickly and accurately
  • Initiating IAVA responses and system security scans, completing remediation actions, deploying patches and security updates to designated sites, and executing monthly security scans
  • Identifying and resolving hardware and software problems
  • Proactively notifying customers when test infrastructure delays may affect their ability to complete business functions on time and communicating system outages and publishing status updates to users, as needed
  • Authoring and maintaining clear, accurate, and concise documentation
  • Responding to calls and emails in a timely and professional manner
  • Planning and implementing IT enhancements and supporting project‐related work
  • Responding to system administration, operations, and maintenance issues on an on-call basis when required

Required Qualifications

  • Must have active Top Secret/SCI clearance with NSA Full Scope Polygraph
  • Must have at least 7 years of Windows administration experience
  • Must have at least 7 years of experience in information security management, with demonstrated expertise in security governance, risk management, compliance, and operational security functions
  • Must have at least 5 years of experience with each of the following:
  • Implementing and managing Windows Active Directory and DNS environments
  • Creating and managing Group Policy Objects (GPOs)

Microsoft SCCM

  • Microsoft Exchange administration and Exchange Management Shell
  • Must have experience with Windows Command Line, PowerShell, and PowerShell scripting
  • Strong understanding of advanced security protocols, standards, and information security principles is a must

Experience with software and security architectures

  • Hands‐on experience with IAVA management
  • Hands‐on experience supporting users, optimizing system operations, and monitoring enterprise IT systems
  • Commitment to best practices, including compliance with maintenance windows and change control procedures
  • Familiarity with Windows and Linux operating systems, VMware, and networking technologies including switches, routers, LANs, and cabling
  • Must have strong analytical skills, attention to detail, and the ability to work effectively both independently and as part of a team

Desired Qualifications

  • Bachelor's degree in Computer Science, Information Technology, or a related technical field and 12 years of prior relevant experience
  • Experience documenting and supporting security accreditation and certification activities
  • Experience with network security technologies, including multi‐domain solutions, PKI, SSPs, and vulnerability assessments
  • Experience with data center design and configuration, including rack‐and‐stack, power planning, and equipment placement

Experience with VMware

  • Experience using automation tools such as Ansible or SaltStack
  • Experience serving in a System Administrator role supporting software configuration management and development environments
  • Exempt hourly position. 11 paid holidays, minimum of 3 weeks PTO, company sponsored group medical plan, company paid dental, vision, life insurance, and STD/LTD plans. Salary is dependent upon the candidate’s experience and qualifications.

About Momentum Engineering

Momentum Engineering
Technology/Software · Startup (1-50)
109 open roles

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