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Systems Administrator T4

3Core Systems, Inc

Posted 8 days ago

About this role

Job Title: Systems Administrator T4

Location:  Herndon, VA (Hybrid: 3 days/week onsite: Tuesday, Wednesday, Thursday)

Duration : 6 months

Description:

*Candidate MUST be a US citizen*

Microsoft 365 Administrator

The ideal candidate is a reliable, hands-on Microsoft 365 administrator with strong troubleshooting skills, experience managing daily operational tickets, and the ability to maintain service excellence during a high-priority compliance initiative. A collaborative team player who can quickly adapt to existing processes and providing consistent support is essential.

Key Responsibilities:

  • Provide day-to-day technical support for Microsoft 365 services, including Exchange Online, SharePoint Online, Teams, OneDrive, and the M365 Admin Center.
  • Manage and resolve operational tickets related to user access, mailbox issues, file sharing, Teams functionality, and general M365 platform support.
  • Monitor system health and service status using the M365 Admin Center, Security & Compliance dashboards, and other monitoring tools.
  • Assist with user provisioning, license assignments, and basic identity and access management tasks.
  • Support implementation and maintenance of security and compliance policies, including Conditional Access, DLP, Sensitivity Labels, and Defender for Office 365.
  • Collaborate with IT, Security, and business stakeholders to ensure continuity of Microsoft 365 services during a critical compliance initiative.
  • Document support activities, configurations, and troubleshooting steps to maintain knowledge base and operational continuity.
  • Escalate complex or unresolved issues to senior administrators or vendors as needed.
  • Provide end-user guidance and basic training on Microsoft 365 capabilities to promote productivity and adoption.
  • Assist with routine maintenance tasks, system updates, and minor configuration changes as directed.

Qualifications :

  • Bachelor’s Degree in Computer Science, MIS, or related field (or equivalent professional experience).
  • 5–7+ years of hands-on administration experience with Microsoft 365 in an enterprise setting.
  • Strong troubleshooting skills with Exchange Online, SharePoint Online, Teams, OneDrive, and Azure AD.
  • Experience managing daily operational tickets and providing end-user support.
  • Familiarity with security and compliance features within Microsoft 365.
  • PowerShell scripting experience and familiarity with Graph API preferred.
  • Excellent communication, documentation, and organizational skills.
  • Understanding of hybrid environments and integration with on-prem Active Directory and legacy systems.
  • Ability to work independently and adapt quickly to existing processes and procedures.
  • Knowledge of AI capabilities within Microsoft 365.

Desired Skills:

  • Microsoft Certifications (MS-102, SC-400, or equivalent).
  • SharePoint Online administration and customization experience.
  • Experience with Microsoft Defender for O365.
  • Knowledge of Information Protection, sensitivity Labels, and DLP (Policies for email, endpoints, and cloud apps).
  • Familiarity with Data Governance (Retention labels, records management, and audit logs).
  • Experience with Microsoft Purview for compliance monitoring and reporting.
  • Basic scripting and automation skills (PowerShell, Graph API).
  • Experience supporting hybrid environments with on-premises Active Directory integration.

Job details

Workplace

Office

Location

Herndon, United States

Job type

Contract

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