M365 Systems Administrator Sr Principal
Job in
Herndon, Fairfax County, Virginia, 20171, USA
Listed on 2026-06-15
Listing for:
General Dynamics
Full Time, Part Time, Seasonal/Temporary
position Listed on 2026-06-15
Job specializations:
-
IT/Tech
Systems Administrator, Network Administrator, Systems Engineer, IT Support
Job Description & How to Apply Below
Location:
USA VA Herndon
Full Part/Time:
Full time
Job Req: RQ222130
Type of
Requisition :
Regular
Clearance Level Must Currently Possess:
None
Clearance Level Must Be Able to Obtain:
None
Public Trust/Other
Required:
None
Job Family:
IT Infrastructure and Operations
Job Qualifications:
Skills:
Collaboration, Microsoft Administration, Microsoft Teams, System Administration, Telecommunication Systems
Certifications:
None
Experience:
8 + years of related experience
US Citizenship
Required:
No
Job Description:
SYSTEMS ADMINISTRATOR SR PRINCIPAL
Advance how our customers operate while you advance your career. Join GDIT as a Systems Administrator Sr Principal and build an impactful career in enterprise IT, collaborating with people who are driven and resourceful like you.
MEANINGFUL WORK AND PERSONAL IMPACT
As a Systems Administrator Sr Principal at GDIT, your work will have a meaningful impact on GDIT's mission. You will be central to the design, implementation, and support of Unified Communications & Collaboration (UCC) platform services, including telephony, voice, conferencing, and Microsoft 365-integrated solutions and services.
Lead/Manage/Support - As a Systems Administrator Sr Principal at GDIT, you will craft innovative solutions to complex challenges, customizing advanced technologies to meet the unique needs of our clients. Specializing in UC Collaboration and Voice/Telephony services, you'll prioritize enhancing the end-user experience, while we focus on advancing your career growth.
Collaborate with the M365 Services and Database Team to implement and deliver outstanding support for Microsoft 365 Teams, Unified Communications & Collaboration services, Voice, Telephony and related emerging technologies. As a GDIT Systems Administrator Sr Principal you will play a key role in making today secure and tomorrow is smarter.
Drive efforts to enhance and optimize existing technologies, implement new innovative solutions, and collaborate with other teams to integrate systems that improve security, functionality and services for GDIT users.
Our work depends on a Systems Administrator Sr Principal joining our team to design, implement and support Microsoft 365 Teams, Unified Communication Collaboration services, Voice, telephony and related emerging technologies to service, protect and secure GDIT's position in the marketplace.
WHAT YOU'LL NEED TO SUCCEED
Bring your technology expertise and drive for innovation to GDIT. The Systems Administrator Sr Principal must have:
Education:
Bachelor of Arts/Bachelor of Science or an equivalent combination of Technical Training, Certification(s) and additional work experience
Experience:
8+ years of related experience
Technical skills:
Strong background supporting M365 Teams and hands-on experience supporting solutions with Microsoft Entra, Azure AD and AD Connect. Power Shell and Graph scripting. Administration of Session Boarder Controllers. Prior experience supporting telecommunications, networking, and voice communication technologies.
Preferred
Skills:
Telecom Session Boarder Controller (SBC), Proficient with Power Shell, Graph and other scripting skills used to automate processes.
Experience with the installation or support of Unified Communications (UC), VoIP, SIP, PSTN telephony solutions.
Experience with hardware and software testing, integration, installation, configuration and problem solving, especially for Windows 11 clients and Windows Servers
Location:
Must be able to go into the Herndon, VA office a minimum of 3+ days a week
GDIT IS YOUR PLACE
At GDIT, the mission is our purpose, and our people are at the center of everything we do.
Growth: AI-powered career tool that identifies career steps and learning opportunities
Support:
An internal mobility team focused on helping you achieve your career goals
Rewards:
Comprehensive benefits and wellness packages, 401K with company match, and competitive pay and paid time off
Community:
Award-winning culture of innovation and a military-friendly workplace
OWN YOUR OPPORTUNITY
Explore an enterprise IT career at GDIT and you'll find endless opportunities to grow alongside colleagues who share your desire to drive…
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