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Microsoft 365 Administrator

Harvey Nash
Full TimemidHybrid
Denver, Colorado, USPosted March 19, 2026

Job Description

Summary

We

are looking for a Tier 3 Microsoft 365 Administrator who can provide advanced

support, administration, and engineering for M365 services like SharePoint,

Exchange, and Teams. The ideal candidate should have strong PowerShell skills,

deep expertise in Azure AD/Entra ID, and experience troubleshooting hybrid

environments. This person will act as the escalation point for complex issues,

drive automation and optimization, and ensure security, compliance, and

governance across the M365 ecosystem.

Here

are some of the specific details:

Job Title: Microsoft 365

Administrator

Location:

Denver, CO or Brentwood, TN (Hybrid)

Duration:

Long-term Indefinite Contract

Note:

Candidates must go onsite three days each month - Tuesday, Wednesday, and

Thursday of the second full week. This means they need to be local, as every

month they’ll be required to work onsite during those specific days

Job Summary

We are seeking

a highly skilled Tier 3 Microsoft 365 Administrator to provide advanced

technical support, administration, and engineering for our Microsoft 365

environment. This role serves as the escalation point for complex issues, leads

platform optimization efforts, and partners closely with security, identity,

and infrastructure teams to ensure a secure, scalable, and reliable M365

ecosystem.

Key

Responsibilities

Microsoft 365

Administration & Engineering

·

Administer and

optimize Microsoft 365 services, with deep hands-on ownership of:

o SharePoint Admin Center (Online sites,

permissions, governance, storage, sharing)

o Exchange Admin Center (Online

mailboxes, transport rules, retention, hybrid configurations)

o Teams Admin Center (Policies, voice,

meetings, apps, and integrations)

·

Design,

implement, and maintain M365 configurations aligned with organizational

standards and best practices

·

Manage

tenant-wide settings, service health, licensing, and capacity planning

Tier 3 Support

& Escalation:

·

Act as the

highest-level escalation point for complex M365 incidents and service

degradation

·

Perform root

cause analysis (RCA) and implement long-term corrective actions

·

Engage

Microsoft Premier/Unified Support as needed and manage cases to resolution

Security,

Compliance & Governance:

·

Partner with

security teams to implement and maintain:

o Conditional Access policies

o Data Loss Prevention (DLP)

o Retention and eDiscovery policies

·

Ensure

compliance with organizational and regulatory requirements

·

Support audits

and security reviews related to M365 services

Automation

& Optimization:

·

Develop and

maintain automation using PowerShell, Microsoft Graph, and M365 APIs

·

Improve

operational efficiency through scripting, standardization, and self-service

tooling

·

Evaluate and

deploy new M365 features and capabilities

Collaboration

& Leadership:

·

Mentor Tier 1

and Tier 2 support staff

·

Create and

maintain technical documentation, runbooks, and standards

·

Provide

architectural input for M365-related projects and migrations

Required

Qualifications

·

5+

years of experience administering Microsoft 365 in an enterprise environment

·

Expert-level

experience with:

o

SharePoint

Online and SharePoint Admin Center

o

Exchange

Online and Exchange Admin Center

o

Microsoft

Teams and Teams Admin Center

·

Strong

PowerShell scripting skills for M365 administration

·

Solid

understanding of Azure AD / Entra ID (identity, authentication, and access

management)

·

Experience

troubleshooting hybrid environments (on-prem AD, Exchange hybrid)

·

Strong

analytical, documentation, and communication skills

Preferred

Qualifications

·

Microsoft

certifications (e.g., MS-102, Exchange, Teams, or Security certifications)

·

Experience with

Microsoft Purview, Defender for Office 365, and Intune

·

Familiarity

with large-scale migrations to M365

·

Experience in

regulated or highly secure environments

Working

Conditions:

·

May require

participation in on-call rotation for critical incidents

·

Hybrid or

remote work options depending on business needs

Let

me know if you are interested in this job and/or if

you can assist us by referring someone who is interested in this job, since we

offer the lucrative referral bonuses.

Benefits will also

be available, and details are available at the following link: Harvey Nash Benefits

I am looking forward to speaking with you today.

About us

Harvey Nash is

a national, full-service talent management firm specializing in technology

positions. Our company was founded with a mission to serve as the talent

partner of choice for the information technology industry.

Our company

vision has led us to incredible growth and success in a relatively short period

of time and continues to guide us today. We are committed to operating with the

highest possible standards of honesty, integrity, and a passionate commitment

to our clients, consultants, and employees.

We are part of

Nash Squared Group, a global professional services organization with over forty

offices worldwide.

For

more information, please visit us at https://www.harveynashusa.com/

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