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Windows Engineer

ManTech International

General information Requisition # R68523 Locations USA-VA-Chantilly Posting Date 06/09/2026 Security Clearance Required TS/SCI w/ Poly Remote Type Onsite Time Type Full time Description & Requirements Unlock the secrets of intelligence with MANTECH! Join...

Role overview

Job description

MANTECH seeks a skilled and motivated Windows Systems Administrator to join our team of top Information Technology and Analytic professionals in Chantilly, VA.

You will play a vital role in maintaining and enhancing the Sponsor's Windows environment, contributing to national security through technical excellence. This dynamic role is embedded in an innovative Big Data ecosystem where collaboration and growth are encouraged.

Responsibilities include but are not limited to:

You will help sustain and improve the organization's Windows infrastructure as part of a collaborative systems team. Your focus will span operations, security, and integration of hardware and software.

Research and resolve operating system problems efficiently and accurately in adherence to organizational standards

Troubleshoot operating system issues and collaborate with cross-functional teams including application development and networking

Build and harden Windows servers, establish and manage configuration baselines

Plan, test, install, integrate, and maintain new or updated operating systems

Apply security and firmware patches promptly; assist in maintaining patch management strategies

Test and integrate new hardware and software components

Manage the lifecycle of operating systems

Design interfaces to external systems and maintain thorough documentation on system configurations and processes

Minimum Qualifications

High School Diploma and 7+ years of relevant experience with Windows systems

Experience with complex system architectures and interconnected data environments

Hands-on experience with Active Directory, LDAP, and Centrify for domain management

Experience and proficiency applying security patches within enterprise systems

Experience scripting in PowerShell, VB, or similar tools

Experience and ability to manage environments running Windows Server 2008/2012/2016

Experience with Microsoft System Center Operations Manager (SCOM) and Access Control Service (ACS)

Experience with Microsoft Exchange, Outlook, and antivirus solutions including Symantec and McAfee

Preferred Qualifications

Familiarity with LAN, SAN, TCP/IP, and Cisco network configurations

MCSE or MCITP certifications

Experience with VMware 5+ and a VMWare Certified Professional (VCP) credential

Security Clearance Requirements

An active/current TS/SCI with Polygraph is required.

Physical Requirements

The person in this position needs to occasionally move about inside the office to access file cabinets, office machinery, etc.

Must be able to use hands to operate a computer and other office productivity machinery such as a calculator, copy machine, and computer printer.

The projected compensation range for this position is $128,000.00-$214,400.00. There are differentiating factors that can impact a final salary/hourly rate, including, but not limited to, Contract Wage Determination, relevant work experience, skills and competencies that align to the specified role, geographic location (For Remote Opportunities), education and certifications as well as Federal Government Contract Labor categories. In addition, MANTECH invests in its employees beyond just compensation. MANTECH's benefits offerings include, dependent upon position, Health Insurance, Life Insurance, Paid Time Off, Holiday Pay, short-term and long-term Disability, Retirement and Savings, Learning and Development opportunities, wellness programs as well as other optional benefit elections.

MANTECH considers all qualified applicants for employment without regard to disability or veteran status or any other status protected under any federal, state, or local law or regulation.

If you need a reasonable accommodation to apply for a position with MANTECH, please email us at careers@mantech.com and provide your name and contact information.