Exchange Systems Administrator SME

D2 Technical Services•Alexandria, VA

1d•Onsite

About The Position

D2 is seeking an Exchange Subject Matter Expert to support a large enterprise IT contract for the Department of Defense. The role develops and implements on-premises Microsoft Exchange solutions across small, medium, and large enterprise environments using physical and virtual server technologies. Solutions include Microsoft Exchange 2019 and 2025 SE on-premises, M365 Exchange Online, and hybrid environments spanning different classifications, scopes, resiliency needs, and mission requirements. The SME provides systems and software administration in a large, multi-enclave enterprise and works with a team to meet mission and customer needs. Work includes technical planning for hardware and software upgrades; reviewing implementation and upgrade guides; producing SOPs and other operations documentation; analyzing and allocating requirements with operations staff; and conducting technical assessments, integration support, functionality and security testing, and quality assurance of production implementations. The role may also require server configuration, reboots, and other remedial actions. This is a 100% on-site position supporting a 24/7/365 mission environment. The employee must be able to provide on-call support for after-hours outages. An active TS/SCI clearance is required; the position requires TS/SCI with CI Poly or TS/SCI and willingness to obtain a Poly. US citizenship is required.

Requirements

Active TS/SCI security clearance; TS/SCI with CI Poly is required, or TS/SCI with willingness to obtain a Poly.
US citizenship.
A Bachelor's degree with 12 years of relevant experience, a Master's degree with 10 years, an Associate's degree with 14 years, or a high school diploma with 16 years.
Meet DoDM 8140.03 (previously DoD 8570) IT System Administrator Intermediate certification requirements, such as Cloud+, GICSP, SSCP, Security+ CE, GSEC, or higher.
Experience interacting with service lanes to handle service inquiries and problems.
Extensive experience as a Tier 2/3 System Administrator.
Extensive experience with Office 365 and Microsoft Exchange 2016, 2019, and 2025 SE.
Extensive knowledge of email journaling solutions.
Extensive experience with Exchange PowerShell or other scripting languages for automation.
Experience resolving highly complex problems using technical knowledge, factual reasoning, and interpretation of problem indicators.
Experience developing and implementing upgrades to newer Exchange versions.
Experience directing migrations between on-premises Exchange and M365 Exchange Online.
Time-management skills and ability to work independently within an IT service management/ticketing system such as ServiceNow.
Strong oral and written communication skills, including experience briefing senior government and military officials.
Leadership and mentoring skills to guide and improve team skills.
Ability to work effectively on a team and support peers to improve processes and results.
Ability to triage and classify incidents and prioritize work accordingly.
Extensive experience planning, deploying, and documenting patch and configuration updates.
Extensive knowledge of disaster recovery and high availability for large, dispersed enterprise environments.
Extensive experience with log reviews, incident analysis, issue-trend identification, and problem analysis.
Experience with server/system patch management methodologies.
Ability to work on-site and provide on-call support for after-hours outages.

Nice To Haves

An in-scope Counterintelligence Polygraph completed within the past five years.
Microsoft Certified Solutions Expert (MCSE) or Microsoft Certified System Administrator (MCSA) certification.
Experience troubleshooting in a Trellix/Windows Defender security environment.
Experience with backup and restore procedures using NetBackup, VMware snapshots, or other backup solutions before major changes or upgrades.

Responsibilities

Provide Tier 2/Tier 3 administration support for implementation, troubleshooting, maintenance, and monitoring of physical and virtual servers.
Remotely log into servers to perform software configuration, reboots, and other remedial actions as needed.
Distinguish isolated user problems from enterprise-wide application or system problems; advise operations staff on root cause and recommended fixes, and document resolutions.
Collaborate with peers and other service lanes to analyze network latency and address slow connections and user experience issues.
Collect data, conduct analysis, and develop and implement solutions under Problem Management guidelines.
Establish and maintain availability and capacity management solutions using lessons learned and business practices.
Provide follow-up reports covering technical findings, feedback, and resolution steps for root cause analysis, operational assessment, and process improvement.
Support customer requirements in a 24/7/365 mission environment and provide on-call support during after-hours outages.
Update operations and monitoring documentation for 24/7/365 IT Operations Center personnel.
Troubleshoot email routing and service disruptions affected by cybersecurity tools and policies, ensuring implementations and integrations do not impact customers.
Oversee day-to-day Exchange Online operations within an Office 365 hybrid/cloud environment.
Manage roles, services, and permissions in accordance with Government Service Owner and Cyber Security mandates.
Create, test, and implement PowerShell scripts to automate and standardize routine tasks and monitoring.
Plan and conduct technical work for hardware and software upgrades; review implementation and upgrade guides and generate SOPs and other operations documentation.
Perform requirements, functional, and allocation analysis with operations staff to meet upgrade timelines.
Conduct technical assessments, integration support, system functionality and security compliance testing, and quality assurance of production implementations.