Windows Administrator, Senior - L3 - Military veterans preferred

ManTech (


  full-time   employee

Colorado Springs
United States

Secure our Nation, Ignite your Future

Become an integral part of a diverse team while working at an Industry Leading Organization, where our employees come first.  At ManTech International Corporation, you’ll help protect our national security while working on innovative projects that offer opportunities for advancement.

Currently, ManTech is seeking a motivated, career and customer-oriented Senior Windows Administrator, L3 to join our team in Colorado Springs, CO.

Responsibilities include, but are not limited to:

  • Responsible for windows system operations comprising at a minimum, system operations, administration, O&M, and security
  • Support the continuous monitoring and management of enterprise windows systems to include security, capacity, performance, availability, and facility support elements (i.e. power/cooling).
  • Responsible for Windows technical planning, implementation, performance tuning, and recovery/troubleshooting procedures for enterprise systems.
  • Be forward looking, and Identify opportunities to improve and automate the environment and operational efficiency across the Windows enterprise
  • Responsible for the security and management of Windows servers and desktops in all environments, Production and Non-Production.
  • Solve complex integration and technical problems in a dynamic fast-paced environment
  • Work with other System Administrators, DBAs, Network Administrators, Storage Administrators, and application developers to resolve various system issues
  • Support virtualized and physical Windows systems, for both Server and Desktop Windows environments.

Basic Qualifications:

  • A Bachelor's degree or equivalent in Computer Science, Information Systems, Engineering, Business, or other related scientific or technical discipline with 7 or more years related professional experience. (Education can be substituted for 10 years of experience as a Windows professional).
  • MSCA and MCSE Certification or equivalent replacement (Senior Windows Admins – Azure Administrator: Exam AZ-104).
  • This position supports an IT operations environment.  The successful candidate should expect to support work on nights and weekends and may be included in an on-call rotation for after-hours support.
  • Excellent communicator, both verbally and written, with an ability to understand and discuss highly technical subjects to multiple levels of internal and external leadership.
  • Security focused mindset experienced with large scale enterprise deployments of applications and security updates across a diverse multi customer environment.
  • Knowledge and experience installing, configuring, maintaining, and troubleshooting Windows operating systems and applications including Windows Server 2012 - 2019, and Windows 10.
  • Knowledge and experience with installation, configuration, management, and troubleshooting of virtual desktop infrastructure.
  • Experience building and deploying servers in a VMWare virtualized environment.
  • Experience with enterprise software deployment using SCCM/SCOM.
  • Demonstrated experience with PowerShell scripting, server configuration automation, and automated Windows server deployments.
  • Experience and ability to troubleshoot a diverse set of OS and application issues across differing application environments.
  • Deep understanding and experience with Active directory architecture and administration at both the Forest and Domain level.
  • Experience with Microsoft Exchange administration.
  • Ability to maintain documentation reflecting the current operational environment.
  • Functional understanding of basic network infrastructure including switches, firewalls, subnets, and load balancers.

Preferred Qualifications:

  • Experience with SolarWinds monitoring administration
  • Automated Windows deployment using Ansible
  • Experience with Mcafee ePolicy administration
  • Experience with SAN or Network storage setup/administration
  • MSCE Certification
  • ITIL Certification
  • SAFe Certification

Security Clearance Requirements:

  • Active DOD Secret clearance and ability to obtain agency suitability clearance

Physical Requirements:

  • Must be able to type
  • Must be able to lift servers and perform general data center work such as pulling cables, racking and stacking equipment.

For all positions requiring access to technology/software source code that is subject to export control laws, employment with the company is contingent on either verifying U.S.-person status or obtaining any necessary license. The applicant will be required to answer certain questions for export control purposes, and that information will be reviewed by compliance personnel to ensure compliance with federal law. ManTech may choose not to apply for a license for such individuals whose access to export-controlled technology or software source code may require authorization and may decline to proceed with an applicant on that basis alone.

ManTech International Corporation, as well as its subsidiaries proactively fulfills its role as an equal opportunity employer. We do not discriminate against any employee or applicant for employment because of race, color, sex, religion, age, sexual orientation, gender identity and expression, national origin, marital status, physical or mental disability, status as a Disabled Veteran, Recently Separated Veteran, Active Duty Wartime or Campaign Badge Veteran, Armed Forces Services Medal, or any other characteristic protected by law.

If you require a reasonable accommodation to apply for a position with ManTech through its online applicant system, please contact ManTech's Corporate EEO Department at (703) 218-6000. ManTech is an affirmative action/equal opportunity employer - minorities, females, disabled and protected veterans are urged to apply. ManTech's utilization of any external recruitment or job placement agency is predicated upon its full compliance with our equal opportunity/affirmative action policies. ManTech does not accept resumes from unsolicited recruiting firms. We pay no fees for unsolicited services.

If you are a qualified individual with a disability or a disabled veteran, you have the right to request an accommodation if you are unable or limited in your ability to use or access as a result of your disability. To request an accommodation please click and provide your name and contact information.