Senior Microsoft 365 Administrator

Please find the JD below:

Role: Senior Microsoft 365 Administrator

Location - Herndon, VA [hybrid; 3 days/week onsite]
Duration 1+ years

Interview Final onsite

Note: The ideal candidate is a forward-thinking technologist with deep expertise in Microsoft 365, experience driving enterprise-level projects, and a passion for maximizing the value of cloud collaboration tools to support evolving business needs.

Job Summary: The Senior Microsoft 365 Administrator will serve as the technical lead and subject matter expert responsible for overseeing the architecture, implementation, and ongoing optimization of client's Microsoft 365 environment. This strategic role will support major modernization initiatives, lead platform upgrades, and collaborate cross-functionally to ensure secure, reliable, and scalable solutions across Microsoft Exchange Online, SharePoint, Teams, OneDrive, and associated services.

MUST HAVES:

• Bachelor's degree in Computer Science, MIS, or related field (or equivalent professional experience).
• A minimum of seven (7) years of hands-on administration and engineering experience with Microsoft 365 in an enterprise setting.
• Proven experience leading M365 implementations, upgrades, or major configuration projects.
• In-depth knowledge of Exchange Online, SharePoint Online, Teams, OneDrive, Azure AD, and security & compliance features.
• Advanced experience with Power Platform (Power BI, Power Apps, Power Automate).
• Strong PowerShell scripting experience and familiarity with Graph API.
• Demonstrated ability to lead cross-functional projects and interface with senior leadership.
• Excellent communication, documentation, and organizational skills.
• Strong understanding of hybrid environments and integration with on-prem Active Directory and legacy systems.
• Microsoft Certifications (e.g., MS-100, MS-101, SC-300, or equivalent).
• SharePoint 2013+ administration and customization experience.
• Familiarity with Defender for O365, Conditional Access Policies, Sensitivity Labels, and DLP.
• Experience with security auditing, tenant hardening, and compliance configuration.
• Knowledge of networking fundamentals, HTML, JavaScript, and SQL Server is a plus.

Please provide a MS Word resume AND have candidate quantify the following number of years and projects AS WELL AS list technologies used, end client names, certifications, and references

QUALIFICATION

Microsoft Administration number of years

Architecture/Implementation/Optimization of Microsoft 365 environment number of projects

Modernize/Upgrade/Collaborate across Microsoft Exchange Online/SharePoint/Teams/OneDrive solutions and M365 Admin Center number of projects

Own/Implement best practices [identity, access, and compliance policies] Yes/No

Manage tenant-level configurations (including hybrid integrations and licensing strategies) Yes/No

Monitor system health/usage metrics/security compliance Yes/No

Develop/Enforce governance standards/documentation/disaster recovery procedures Yes/No

Mentor junior team members and provide advanced support/escalation Yes/No

Evaluate/Recommend emerging M365 technologies for adoption Yes/No

End-user guidance/training Yes/No

SharePoint 2013+ administration/customization Yes/No

Security auditing/tenant hardening/compliance configuration Yes/No

Networking fundamentals Yes/No

Power Platform [Power BI, Power Apps, Power Automate] number of years

PowerShell scripting number of years

Microsoft Graph API number of years

Defender for O365 [Conditional Access Policies, Sensitivity Labels, DLP] number of years

Microsoft Security & Compliance Center number of years

HTML number of years

JavaScript number of years

SQL Server number of years

Senior Microsoft 365 Administrator for {list client(s)}

Other Microsoft 365 Administration roles include {list client(s)}

Certification

Microsoft 365 Certified: Enterprise Administrator Expert [MS-100/102] Yes/No

Microsoft 365 Mobility and Security [MS-101/102] - Yes/No

Microsoft Certified: Cybersecurity Architect Expert [SC-100] - Yes/No

Microsoft Certified: Security Operations Analyst Associate [SC-200] - Yes/No

Microsoft Certified: Identity and Access Administrator Associate [SC-300] - Yes/No

{list other(s)}

Reference [list names/titles/company emails/company telephones/LinkedIn profiles

Job Responsibilities:

• Lead and drive Microsoft 365 upgrades, migrations, and platform modernization efforts.
• Architect, configure, and maintain secure and resilient Microsoft 365 services, including Exchange Online, SharePoint Online, Teams, OneDrive, and the M365 Admin Center.
• Own and implement best practices around identity, access, and compliance policies using Conditional Access, DLP, Sensitivity Labels, and Defender for Office 365.
• Act as a technical lead for M365-related projects, working closely with internal IT, Security, and business stakeholders.
• Manage tenant-level configurations, including hybrid integrations and licensing strategies.
• Proactively monitor system health, usage metrics, and security compliance via tools like PowerShell, Graph API, and Security & Compliance Center dashboards.
• Develop and enforce governance standards, documentation, and disaster recovery procedures.
• Mentor junior team members and provide advanced support and escalation on complex issues.
• Evaluate emerging M365 technologies and make recommendations for adoption aligned with strategic goals.
• Provide end-user guidance and training on new capabilities to promote adoption and productivity.