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ManTech International Corporation.

Prinicpal Systems Engineer

ManTech International Corporation. - Chantilly, VA

Req ID


Business Title

Prinicpal Systems Engineer





Clearance Level Needed



Systems Development

Job Duties and Responsibilities

Become an integral part of a diverse team that leads the world in Mission, Cyber, and Technology Solutions. At ManTech International Corporation, you will help protect our national security while working on innovative projects that offer opportunities for advancement.

As a Principal Windows Systems Engineer you will perform system engineering functions for the Windows-based platform WAN, Active Directory, VMware, Public Key Infrastructure, Storage Area Networks, Veeam Backup and Replication, VDI, performance monitoring and the supporting infrastructure to comply with applicable standards.

The potential candidate will also have knowledge of Active Directory and related functions such as DNS, DHCP, GPO processing, Exchange, SharePoint, SolarWinds, VSphere 6 to include Site Recovery Manager, Replication, Orchestrator, and Operations Manager.

Responsibilities include but not limited to:

Support connectivity with other domains and the existing systems

Analyze system faults, troubleshoot, and run diagnostic test on operating system and hardware to detect problems

Evaluate and install developed software during various phases of testing

Review and prepare documentation for systems and tests capable of installing and required software

Initiate preventive maintenance on the operation system as well as be capable of repairing system/environment problems

Develop the procedures and be capable of executing existing and developed procedures in order to maintain compliance with mandates and/or vendor-released patches and upgrades

Troubleshoot of system performance and make system modifications to accommodate hardware and software upgrades

Position Requirements:

BA/BS in Computer Science, Information Security, or related field; a Master's degree is preferred

7-9 years of operating system experience with 7-9 years of MS Windows experience

Possess strong technical written and verbal communication skills essential

Networking skills required, with emphasis on security

8570/8140 compliance required certifications (Minimum of Security CE)

Desired certifications include MCSA, MCSE, MCITP, VCP

Security Requirements:

U.S. Citizenship and an active DoD Top Secret clearance based upon a SSBI completed within the last 5 years and SCI eligibility


Requires Bachelors degree (in Computer Science, Math, Electrical Engineering or related field) and seven to nine years of related experience.


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ManTech International Corporation is comprised of approximately 7,300 talented employees who use advanced technology to help government and industry meet some of their greatest challenges around the world. We adhere to the simple, no-nonsense values on which ManTech was founded more than four decades ago, aligning squarely with the mission objectives of our customers. As our customer base continues to expand and diversify, we continue to diversify our workforce and solutions. Nearly half our employees have a military background, and approximately 70 percent hold a government security clearance. As a leading provider of innovative technology services and solutions for the nation's defense, security, health, space, and intelligence communities; we hold nearly 1,100 active contracts with more than 50 different government agencies.

22 days 7 hours ago

ManTech International Corporation.

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Location: Chantilly, VA

Company Profile:
ManTech International Corporation provides technologies and solutions for mission-critical national security programs in the United States and internationally. It offers cyber warfare and cyber defense security solutions and services, such as identifying and neutralizing external cyber attacks; engineering tailored defensive security solutions and controls; managing security operations centers; developing robust insider threat detection programs; and creating enterprise vulnerability management programs. The company also provides information technology (IT) modernization and sustainment services that designs, develops, deploys, modernizes, operates, and maintains IT systems and infrastructure; intelligence/counterintelligence solutions and support; systems engineering; and healthcare analytics, and IT solutions that encompasses health information sharing and clinical analytic solutions. ManTech International Corporation serves the United States federal government intelligence, military, space, civilian agencies, state and local governments, and commercial customers. The company was founded in 1968 and is based in Fairfax, Virginia.