Mission Support and Test Services, LLC
Systems Administrator with Security Clearance
Mission Support and Test Services, LLC, Chicago, Illinois, United States, 60290
Overview
Systems Administrator with Security Clearance
– Mission Support and Test Services, LLC. Must be a US citizen. The Senior M365 Administrator provides leadership in the design, deployment, administration, and sustainment of the Microsoft 365 environment supporting the Department of Energy Office of Science. This role encompasses management of Exchange Online, Teams (including voice services), SharePoint Online, OneDrive, and Azure Active Directory (Entra ID). The Senior M365 Administrator ensures the secure, compliant, and efficient operation of all M365 services, aligned with DOE standards, federal policies, and cybersecurity requirements. This position is on-site at either DOE Headquarters in Chicago, IL, supporting mission-critical operations and driving continuous improvement across the M365 platform.
Responsibilities
Administer and optimize Microsoft 365 services, including Exchange Online, Teams (with voice), SharePoint Online, OneDrive, and Azure AD / Entra ID.
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 in response to 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 PowerShell 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.
Knowledge / Skills
Microsoft 365 administration (Exchange Online, Teams, SharePoint Online, OneDrive)
Azure AD / Entra ID (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
PowerShell scripting and automation for M365
Microsoft Graph API (preferred)
Intune administration (preferred for device compliance if applicable)
Strong documentation and process development skills
Understanding of federal compliance frameworks (NIST 800-53, FIPS 140-3, FedRAMP)
Education / Experience
Bachelor’s degree in Information Technology or related field, or equivalent work experience
Extensive experience in M365 and enterprise messaging administration
Certifications
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)
Working Conditions
Responsibilities may require 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.
Location & Employment Type
Location: Chicago, IL (Onsite)
Employment type: Full-time
Client: DoE (Department of Energy)
Referrals increase your chances of interviewing at Mission Support and Test Services, LLC by 2x.
#J-18808-Ljbffr
– Mission Support and Test Services, LLC. Must be a US citizen. The Senior M365 Administrator provides leadership in the design, deployment, administration, and sustainment of the Microsoft 365 environment supporting the Department of Energy Office of Science. This role encompasses management of Exchange Online, Teams (including voice services), SharePoint Online, OneDrive, and Azure Active Directory (Entra ID). The Senior M365 Administrator ensures the secure, compliant, and efficient operation of all M365 services, aligned with DOE standards, federal policies, and cybersecurity requirements. This position is on-site at either DOE Headquarters in Chicago, IL, supporting mission-critical operations and driving continuous improvement across the M365 platform.
Responsibilities
Administer and optimize Microsoft 365 services, including Exchange Online, Teams (with voice), SharePoint Online, OneDrive, and Azure AD / Entra ID.
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 in response to 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 PowerShell 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.
Knowledge / Skills
Microsoft 365 administration (Exchange Online, Teams, SharePoint Online, OneDrive)
Azure AD / Entra ID (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
PowerShell scripting and automation for M365
Microsoft Graph API (preferred)
Intune administration (preferred for device compliance if applicable)
Strong documentation and process development skills
Understanding of federal compliance frameworks (NIST 800-53, FIPS 140-3, FedRAMP)
Education / Experience
Bachelor’s degree in Information Technology or related field, or equivalent work experience
Extensive experience in M365 and enterprise messaging administration
Certifications
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)
Working Conditions
Responsibilities may require 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.
Location & Employment Type
Location: Chicago, IL (Onsite)
Employment type: Full-time
Client: DoE (Department of Energy)
Referrals increase your chances of interviewing at Mission Support and Test Services, LLC by 2x.
#J-18808-Ljbffr