Exchange Systems Administrator SME

D2 Technical Services•Alexandria, VA

11h•Onsite

About The Position

D2 Technical Services is seeking an Exchange Subject Matter Expert to support a large enterprise IT contract for the Department of Defense. This on-site role provides Exchange systems and software administration in a large, multi-enclave enterprise environment. The SME develops and implements on-premises Microsoft Exchange solutions across physical and virtual server environments, including Exchange 2019 and 2025 SE, Exchange Online, and hybrid configurations spanning varied classifications, scales, resilience needs, and mission requirements. The role supports technical planning for hardware and software upgrades, reviews implementation and upgrade guides, develops SOPs and other operational documentation, and works with operations staff on requirements analysis and upgrade timelines. Responsibilities also include technical assessment, integration support, system testing for functionality and security compliance, and quality assurance of production implementations. The administrator works with a team to meet mission needs and may configure software, remotely access servers, reboot systems, and perform other remedial operations work. The position supports Tier 2/Tier 3 administration, troubleshooting, maintenance, and monitoring; Exchange Online oversight in an Office 365 hybrid/cloud environment; email routing and service continuity; role, service, and permission management; and PowerShell automation. The role supports a 24/7/365 mission environment and may require on-call assistance for after-hours outages. An active TS/SCI clearance is required; the posting also specifies TS/SCI with CI Poly, or TS/SCI with willingness to obtain a polygraph.

Requirements

Active TS/SCI security clearance; the posting specifies TS/SCI with CI Poly, or TS/SCI and willingness to obtain a polygraph.
U.S. citizenship.
Bachelor's degree with 12 years of relevant experience, Master's degree with 10 years, Associate's degree with 14 years, or high school diploma with 16 years.
At minimum, a DoDM 8140.03 (previously DoD 8570) IT System Administrator Intermediate certification, 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/Tier 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 scripting and automation.
Experience resolving highly complex problems using technical knowledge, factual reasoning, and interpretation of problem indicators.
Experience developing and implementing solutions for upgrades to newer Exchange versions.
Experience directing migrations between on-premises Exchange and Microsoft 365 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 skill composition.
Ability to work effectively within a team and support peers to improve processes and results.
Ability to triage and properly 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.

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.
Plan hardware and software upgrades, review implementation and upgrade guides, and develop SOPs and other documentation for operations and maintenance.
Conduct requirements analysis, functional analysis, and requirements allocation with operations staff to meet upgrade timelines.
Perform technical assessments, integration support, system functionality and security-compliance testing, and quality assurance of production implementations.
Distinguish isolated user problems from enterprise-wide application and system problems; advise operations staff on root causes and recommended fixes, and document resolutions.
Collaborate with peers and service lanes on network latency analysis and user experience issues.
Collect data, conduct analysis, and develop and implement solutions in support of 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 Exchange Online systems in an Office 365 hybrid/cloud environment.
Manage roles, services, and permissions according to Government Service Owner and Cyber Security mandates.
Create, test, and implement PowerShell scripts to automate and standardize routine tasks and monitoring.
Perform technical software configuration, server reboots, and other remedial actions as required.
Plan, deploy, and document patches and configuration updates; support server and system patch management.
Review logs, analyze incidents, identify issue trends, and conduct problem analysis.
Support disaster recovery and high availability for large, dispersed enterprise environments.