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Merito Group

Systems Administrator

Merito Group, Tysons Corner, Virginia, United States

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Recruiting Manager-TS Clearance (active) U.S.-based (as applicable)

As we're growing, we have an urgent need for an experienced

Microsoft 365 System Administrator

to help operate and secure our newly established

Microsoft 365 Government Community Cloud (GCC)

environment. Since this is on a cleared facility you MUST BE a US CITIZEN.

With more than 25 years of experience delivering complex construction and infrastructure programs, combining industry expertise with modern technology to support teams across the U.S. As a multi-year ENR Top 100 CM/PM firm, we continue to invest in secure, scalable platforms that support how our people work today—and where we’re headed next.

About the Role This is a

hands‑on, senior‑level Microsoft 365 role

supporting a 200+ employee organization. You’ll own tenant configuration, security posture, governance, and automation while partnering closely with IT leadership, internal support staff, and a third‑party MSSP.

The ideal candidate has experience supporting

Microsoft Government Cloud (GCC or GCC High)

and understands environments that handle

Controlled Unclassified Information (CUI) .

What You’ll Do

Administer and harden

Microsoft 365 GCC

Secure identity with

Entra ID , Conditional Access, MFA, PIM, and Identity Protection

Manage devices with

Intune

and

Windows Autopilot

Deploy and operate

Microsoft Defender

(Endpoint & Office 365)

Configure

Microsoft Purview

(DLP, retention, sensitivity labels, eDiscovery)

Govern Teams, SharePoint, OneDrive, and external collaboration

Build PowerShell / Graph automation for reporting, compliance, and remediation

Maintain tenant baselines, documentation, and audit evidence (NIST SP 800‑171)

Integrate and secure third‑party SaaS applications via SSO

Act as an escalation point for the Helpdesk and MSSP

5–7+ years administering Microsoft 365 in a mid‑size environment

Must be US Citizen

Experience with

GCC or GCC High , or implementing

NIST SP 800‑171

controls

Strong experience with Intune, Defender, Entra ID, Exchange Online, Teams, and Purview

Comfort with automation, documentation, and security‑first operations

Experience supporting remote and hybrid workforces

Nice to Have

Microsoft certifications (Endpoint, Security, Identity)

Experience with Microsoft Sentinel, Intune Suite, or Copilot for Security

Tenant migrations, domain changes, or hybrid identity projects

Seniority level Mid‑Senior level

Employment type Full‑time

Job function Information Technology

Industries Construction and Technology, Information and Media

Benefits

Medical insurance

Vision insurance

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