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Sr. Windows System Admin​/Helpdesk- TS​/SCI W​/Poly - Littleton

Job in Littleton, Arapahoe County, Colorado, 80161, USA
Listing for: Lockheed Martin Corporation
Full Time position
Listed on 2026-07-08
Job specializations:
  • IT/Tech
    Systems Administrator, IT Support
Job Description & How to Apply Below
Position: Sr. Windows System Admin/Helpdesk- TS/SCI W/Poly - Littleton, CO
Job Description

Our employees are the core of everything we do, and they are helping the future arrive. As a leading technology innovation company, our team of over 100,000 employees work with our partners around the world to bring the latest technology to our customers' toughest challenges. Headquartered in Bethesda, MD, Lockheed Martin has employees based in all 50 states and more than 570 facilities that span 70 countries.
This Enterprise Operations (EO) position supports the Lockheed Martin Space division located in Denver, CO. The selected candidate will be responsible for providing support to the critical Programs that the Special Programs Division are responsible for. This IT professional will ensure that the Lockheed Martin IT systems are managed, controlled, and compliant with the Corporate Information Protection Manuals (CIPM). This includes upgrades, operations and maintenance, hardware and software installations, domain accounts, password issues and service requests (Servers, Workstations, and Storage).

This position provides Windows System Administration services including installation, integration and configuration of Windows, VMWare, and Hyper-V servers, as well Helpdesk services in support of the Stinger net Portfolio. This includes upgrades, operations and maintenance, hardware and software installations, backups, inventory, and service requests in the support of program area IT environments at the Waterton, CO campus.

Basic Qualifications

Must have an active TS/SCI clearance with a CI Poly
U.S. Citizenship required for access to the work facility
IAT II certification (Security+, etc.)
Excellent communication skills

Experience with Active Directory, roaming profiles, and user creation

Experience with desktop operating system, updates, and patching troubleshooting

Experience with hardware movement, installation, and accountability
Experience performing Commercial Off the Shelf (COTS) software installations and support
Experience working in a teaming/collaborative environment
Knowledge of network support in a classified environment (encryption, etc.)
Experience using Microsoft Endpoint Configuration Manager (MECM/SCCM)
Microsoft Service Manager experience / Service Now
Experience maintaining asset records for desktop hardware
Ability to lift 50 pounds

Desired skills

Knowledge of National Industrial Security Program Operating Manual (NISPOM), Risk Management Framework (RMF) and Security Technical Implementation Guide (STIG) Requirements

Experience with storage technologies (i.e., Net App, Nimble, Racktop)
Knowledge of Scripting and Automation (i.e., Ansible, Power Shell, Scorch/Runbooks, Terraform, Chef, Puppet)
Experience working in heavy virtualized environments/private clouds (HyperV, VMware, Azure local, KVM, Nutanix)
Knowledge/understanding of Domain Name Services (DNS)
Managing advanced clusters and virtual desktop environments (RDS, Horizon View, Xen desktop)
Capable of supporting multiple tasks and customers with competing deadlines concurrently
Ability to create documentation, processes, and procedures to ensure risk reduction
Self-motivated, customer focused, and proactive

EEO

Lockheed Martin is an equal opportunity employer. Qualified candidates will be considered without regard to legally protected characteristics.
The application window will close in 90 days; applicants are encouraged to apply within 5 - 30 days of the requisition posting date in order to receive optimal consideration.

*

At Lockheed Martin, we use our passion for purposeful innovation to help keep people safe and solve the world's most complex challenges. Our people are some of the greatest minds in the industry and truly make Lockheed Martin a great place to work.

With our employees as our priority, we provide diverse career opportunities designed to propel, develop, and boost agility. Our flexible schedules, competitive pay, and comprehensive benefits enable our employees to live a healthy, fulfilling life at and outside of work. We place an emphasis on empowering our employees by fostering an inclusive environment built upon integrity and corporate responsibility.

If this sounds like a culture you connect with, you're invited to apply for this role. Or, if you are unsure whether your experience aligns with the requirements of this position, we encourage you to search on Lockheed Martin Jobs, and apply for roles that align with your qualifications.

Other Important Information

By applying to this job, you are expressing interest in this position and could be considered for other career opportunities where similar skills and requirements have been identified as a match. Should this match be identified you may be contacted for this and future openings.

Work Schedule Information

Lockheed Martin supports a variety of alternate work schedules that provide additional flexibility to our employees. Schedules range from standard 40 hours over a five day work week while others may be condensed. These condensed schedules provide employees with additional time…
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