Systems Administrator Security Clearance

Must Be An US Citizen

The Senior M365 Administrator leads the design, deployment, administration, and sustainment of the Microsoft 365 environment for the Department of Energy Office of Science. The role is based on‑site at DOE Headquarters in Chicago, IL, and supports mission‑critical operations while driving continuous improvement across the M365 platform.

• Administer and optimize Microsoft 365 services, including Exchange Online, Teams (with voice), SharePoint Online, One Drive, and Azure AD / Entra .
• Manage and enforce Conditional Access policies, MFA, and identity protection in accordance with DOE cybersecurity policies.
• Oversee external sharing settings and guest account lifecycle management, including Azure AD B2B configurations.
• Maintain Exchange hybrid configuration and ensure proper mail flow, policy management, and routing.
• Configure and support calendar sharing, resource mailboxes, distribution groups, shared mailboxes, and dynamic groups.
• Provide Tier III support for M365‑related incidents, coordinating with Tier I/II teams as necessary.
• Perform monthly server patching of Azure and on‑premises infrastructure.
• Develop and maintain M365 governance, security, and compliance policies, including DLP, retention, and sensitivity labels.
• Conduct eDiscovery searches, content searches, and provide results for legal or compliance requests.
• Create, maintain, and deliver reports on M365 service health, usage, licensing, and compliance posture.
• Plan and implement M365 service updates, feature deployments, and lifecycle management activities.
• Automate administrative tasks using Power Shell and Microsoft Graph API.
• Collaborate with cybersecurity, networking, and operations teams to ensure secure integrations and compliance.
• Provide input on M365 roadmap planning and service improvement initiatives.

• Microsoft 365 administration (Exchange Online, Teams, SharePoint Online, One Drive)
• Azure AD / Entra  (hybrid identity management, Conditional Access, MFA, SSO)
• Exchange Hybrid architecture and mail routing
• Microsoft Teams (including voice features, number assignment, policies)
• Azure AD B2B / guest access management and governance
• Calendar sharing configurations, shared mailboxes, dynamic distribution groups
• Information Protection (DLP, sensitivity labels, retention policies)
• Compliance center, eDiscovery, and content search features
• Power Shell scripting and automation for M365
• Microsoft Graph API (preferred)
• Intune administration (preferred)
• Strong documentation and process development skills
• Understanding of federal compliance frameworks (NIST 800-53, FIPS 140‑3, FedRAMP)

• Bachelor’s degree in Information Technology or related field, or equivalent work experience.
• Extensive experience in M365 and enterprise messaging administration.

• Microsoft 365 Certified:
  Enterprise Administrator Expert
• Microsoft Certified:
  Azure Administrator Associate
• Microsoft Certified:
  Identity and Access Administrator Associate
• ITIL® 4 Foundation (preferred for federal process alignment)

• Strong communication skills for both technical and non‑technical audiences.
• Proactive follow‑up and accountability without reminders.
• Multitasking ability and productivity within time frames.
• Technical proficiency and problem‑solving skills.
• Self‑motivation and independent initiative.
• Team collaboration and leadership communication.
• Customer‑service orientation and attention to detail.
• Adaptability to changing priorities and requirements.

• Occasional evening or weekend work with little advanced notice.
• Available for on‑call 24x7 support as part of a rotation for critical Office of Science IT infrastructure services.