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General information

Requisition #
R60702
Locations
USA-VA-Chantilly
Posting Date
05/23/2025
Security Clearance Required
Top Secret
Remote Type
Onsite
Time Type
Full time

Description & Requirements

Shape the future of defense with ManTech! Join a team dedicated to safeguarding our nation through advanced tech and innovative solutions. Since 1968, we’ve been a trusted partner to the Department of Defense, delivering cutting-edge projects that make a real impact. Dive into exciting opportunities in Cybersecurity, IT, Data Analytics and more. Propel your career forward and be part of something extraordinary. Your journey starts now—protect and innovate with ManTech!

ManTech seeks a motivated, career and customer-oriented Principal Exchange Engineer to join our team in Chantilly, VA. The position is onsite.

Responsibilities include but are not limited to:

  • Responsible for the installation, configuration, maintenance, operations, troubleshooting, and optimizing of Microsoft Exchange server infrastructure.

  • Monitor, document, and report on system utilization and capacity

  • Resolve escalated email routing, connectivity, permissions, and filtering support issues

  • Document processes and procedures and train others

  • Monitor backups and perform periodic test restores

  • Performs break/fix troubleshooting, server/software updates and feature enhancements to MS Exchange and Exchange servers, as well as general IT Windows infrastructure.

  • Designs, develops, tests, debugs and implements Exchange related components, software tools and utilities

  • Ensures that system improvements and patches are successfully implemented and monitored to increase efficiency

  • Generates systems software engineering policies, standards and procedures

  • Requires specialized Exchange expertise and general knowledge of related areas

  • Solves complex problems; takes a broad perspective to identify innovative solutions

  • Works independently, with guidance in only the most complex situations

  • May lead functional teams or projects

Minimum Qualifications:

  • Bachelor’s degree and 7+ years of relevant Microsoft Exchange experience. Additional 4 years of experience can be substituted in lieu of a degree

  • Expert-level knowledge of Microsoft Exchange Server technologies, including on-premise

  • Deep understanding of Active Directory, DNS, and DHCP

  • Experience with Exchange server upgrades, migrations, and deployments

  • Strong troubleshooting and problem-solving skills

  • Knowledge of email security technologies, such as email content filtering

  • CASP+ certification within 6 months of hire

  • DoD 8570 Computing Environment certification within 6 months of hire

Preferred Qualifications:

  • One of the following certifications is desired:  MCSE - Microsoft Certified System Engineer, MCSE - Microsoft Certified Solutions Expert, MCSA - Microsoft Certified Solutions Associate, MCITP - Microsoft Certified Information Technology Professional, VMware VCP - VMware Certified Professional, CCNA - Cisco Certified Network Administrator

  • ITIL Foundations or later certification highly desired

  • Experience using a Service Desk ticketing system, such as TrackIT or ServiceNow

  • Previous customer service experience strongly desired

Clearance Requirements:

  • US Citizenship required and active TS clearance adjudicated within the last 6 years.

  • Candidate must be open to Poly if selected by the customer

Physical Requirements:

  • Must be able to remain in a stationary position 50%.

  • Frequently communicates with co-workers, management, and customers, which may involve delivering presentations; must be able to exchange accurate information in these situations.


ManTech International Corporation 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.