MANTECH

Principal Exchange Engineer

MANTECH  •  Chantilly, VA (Onsite)  •  3 hours ago
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Job Description


General information


Requisition #

R69066

Locations

USA-VA-Chantilly

Posting Date

07/01/2026

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:

  • Install, configure, maintain, and optimize Microsoft Exchange Server environments to ensure reliable and secure messaging infrastructure

  • Troubleshoot complex mail flow, connectivity, permissions, and filtering issues, escalating when needed and resolving high-impact incidents

  • Lead the development and documentation of system processes and train team members to ensure operational consistency and knowledge transfer

  • Monitor performance, capacity, and backups; perform test restores and implement system updates, patches, and improvements

  • Design and implement Exchange-related components, tools, and enhancements to support enterprise infrastructure and collaboration

  • Contribute to strategic planning, solve complex technical problems, and lead Exchange engineering projects or functional teams when required

Minimum Qualifications:

  • Bachelor’s degree and 7+ years of relevant Microsoft Exchange experience; an Associates degree with additional 2+ years of experience, or a High School Diploma with an additional 4+ years of experience may be substituted for a Bachelors degree

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

  • Experience with Active Directory, Domain Name System (DNS), and Dynamic Host Configuration Protocol (DHCP)

  • Experience performing Exchange server upgrades, migrations, and deployments

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

  • IAT Level III/DoD 8140 Advanced certification, e.g., SecurityX or CASP+ 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 v.3 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:

  • Must have a current and active Top Secret clearance, and be willing and able to obtain a polygraph

Physical Requirements:

  • The person in this position must be able to remain in a stationary position 50% of the time.

  • Occasionally move about inside the office to access file cabinets, office machinery, or to communicate with co-workers, management, and customers, via email, phone, and or virtual communication, which may involve delivering presentations.


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.
MANTECH

About MANTECH

MANTECH is more than a technology company. We are a company dedicated to service, and we consider our work a part of the public trust. The people of MANTECH are privileged to work for the security of the United States, the welfare of our service members and veterans, the protection of our communities, and the cause of better health care.

We have served the nation for more than 57 years, and in that time we have continually changed and grown to provide the technology that government needs to meet new challenges. We seek people with the same strong ethic of service, creativity, energy, and dedication to serving our country.

We are comprised of more than 9,800 talented employees around the world. Nearly 40% of our employees are veterans. Many others come from the Intelligence Community, Homeland Security and federal civilian agencies. We understand our customers’ challenges because we know their world firsthand.

When Federal managers and military leaders face tough challenges in cyber, data collection & analysis, enterprise IT or systems and software engineering, they turn to MANTECH to get the job done right. These professionals trust MANTECH and stay with us for years because we understand their needs and tackle their most complex challenges head on. They know that reaching their goal is our ultimate objective.

Industry
IT & Software
Company Size
10,000+ employees
Headquarters
Herndon, Virginia
Year Founded
1968
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