ManTech Principal Systems Engineer in Washington, District Of Columbia

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

ManTech is looking for a well-rounded Lead Systems Engineer to be a performer on a small team of three IT professionals. This team will implement and maintain a technical refresh of a secure information sharing system utilized by a program management office (PMO) and its customer sites.

Responsibilities include, but are not limited to:

  • Identify and diagnose complex performance, security, and technical issues

  • Develop and implement solutions across a wide range of technologies

  • Support the development of cyber security, NIST 800 series paperwork

  • Implement and maintain DISA STIG requirements

  • Maintain physical back-end and virtual servers

  • Maintain virtual desktop infrastructure (Microsoft VDI via RDS)

  • Maintain Cisco infrastructure

Position requirements:

  • Bachelor s degree in an IT related field and 7-9 years of IT related experience

  • Current DODD 8140/8570 IATII certification (or higher) required (e.g., CCNA Security, Security+CE, GICSP, GSEC, SSCP, etc)

  • Experience with Windows Server 2012 R2, Hyper-V, Active Directory, SAN,SQL 2008 or 2012

  • Understanding of HP data storage (HPE StoreVirtual, iSCSI)

  • Experience maintaining teleconferencing infrastructure (Cisco)

  • Ability to work earlier customer hours (e.g., 0700-1500 ) at primary site in NW DC

  • Ability to travel to CONUS secondary sites, should not exceed 10% annually

Position pluses:

  • CASP, CISA, CISSP, GCED, or GCIH certifications

  • Experience with Cisco IOS

  • Experience with Windows Server 2016, SQL 2016, SharePoint 2016,and other related technologies

  • Experience supporting Risk Management Framework (RMF) and InTrust

  • Experience developing IT checklists, SOPs, guides, etc.

  • Experience supporting IT acquisitions and logistics

Security Requirements:

  • US citizenship with an Active TS clearance

  • Valid US driver s license


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


See Qualifications

Years of Experience

11-13 years w/High School Diploma, 05-07 years w/Bachelors Degree, See Qualifications

Position Type





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.

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 Waretime 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.

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