Microsoft 365 Systems Administrator

BizFirst; McLean (VA); Hybrid; USD 90,000 - 130,000; Full time

Benefits offered by this job

401(k) matching

Tuition reimbursement

Competitive bonus opportunities

Paid leave & holidays

Hybrid work arrangements

Job summary

BizFirst is seeking a Microsoft 365 Systems Administrator to support a dispersed workforce of 100+ users. You will administer GCC High environments, manage Entra ID, and handle Tier 1–2 requests while ensuring strong customer satisfaction.

The role includes onboarding/offboarding, endpoint security, and Power BI reporting. Ideal candidates have 5+ years in IT support, deep Microsoft 365/Azure AD expertise, scripting skills, and experience with Windows and macOS.

Qualifications

• Bachelor's degree or equivalent professional experience.
• Minimum five years of professional IT support or systems administration.
• Expertise with Azure Active Directory and Entra ID, Microsoft 365 administration.
• Experience with endpoint management tools (Intune / SCCM).
• Scripting experience with PowerShell, Terraform, or Python.
• Experience supporting Windows and macOS environments.

Responsibilities

• Administer and support Microsoft GCC High environments, including 365 apps.
• Install, configure, and maintain Office applications across platforms.
• Manage user accounts, licensing, and access using Entra ID and Azure AD.
• Document incidents, requests, and procedures in the ITSM system.
• Monitor endpoint security, updates, antivirus, and compliance standards.
• Provide Tier 1 and 2 support for ~100 end users.
• Deploy and manage Windows PCs and Apple Macs.
• Collaborate with vendors and internal stakeholders to resolve issues.
• Assist with onboarding/offboarding and account provisioning.
• Develop reports and dashboards using Power BI.

Skills

Microsoft 365 admin

Entra ID / Azure AD

PowerShell scripting

Terraform

Python

Intune / SCCM

Power BI

Customer service

Education

Bachelor's degree in IT/CS or equivalent experience

Tools

Power BI

SharePoint

Microsoft 365 admin tools

Job description

BizFirst is assisting our client with recruiting a Microsoft 365 Systems Administrator to provide technical support and systems administration for a geographically dispersed workforce of over 100 employees. You will administer the Microsoft 365 tenant in GCC High, manage Entra ID identity policies, maintain end-user devices, and handle Tier 1 and Tier 2 support requests while delivering a high level of customer satisfaction.

Ourclient is a technology integrator that supports government customers with ITmodernization, performance engineering, and cybersecurity. Its engineeringteams collaborate on complex technical programs in a culture of innovation,continuous improvement, and professional development.

Occasional evening and weekend work is required for emergency support, scheduled maintenance, and critical outages.

What You Will Do

Administer and support Microsoft GCC High environments, including Microsoft 365 applications and services.

Install, configure, and maintain Microsoft Office applications across all supported platforms.

Manage user accounts, permissions, licensing, and access using Active Directory, Microsoft Entra ID (Azure AD), and Microsoft 365.

Document incidents, service requests, resolutions, and technical procedures in the IT service management system.

Monitor and maintain endpoint security, software updates, antivirus, and compliance standards.

Provide Tier 1 and Tier 2 technical support for approximately 100 end users; troubleshoot hardware, software, operating system, network, printer, and peripheral issues.

Deploy, configure, maintain, and manage the lifecycle of Windows PCs and Apple Mac computers.

Collaborate with vendor support and internal stakeholders to resolve technical issues efficiently.

Assist with employee onboarding and offboarding, including workstation setup and account provisioning.

Develop reports and dashboards using Microsoft Power BI or similar business intelligence tools.

Support IT asset management, inventory tracking, and technology refresh initiatives.

Participate in system upgrades, infrastructure projects, and process improvement initiatives.

Required Qualifications

Bachelor's degree in Information Technology, Computer Science, or a related field, or equivalent professional experience.

Minimum of five years of professional IT support or systems administration experience.

Competency in Microsoft Azure Active Directory, Microsoft Entra ID (Azure AD), and Microsoft 365 administration.

Knowledge of endpoint management tools such as Microsoft Intune or Microsoft Endpoint Configuration Manager.

Practical, hands‑on experience automating systems administration with PowerShell, Terraform, Python, or similar scripting techniques.

Experience managing Tier 1 and Tier 2 service desk operations.

Experience supporting both Windows and macOS operating systems.

Excellent troubleshooting and analytical skills, strong verbal and written communication skills, and outstanding customer service and interpersonal skills.

Ability to prioritize multiple support requests while meeting service level expectations.

Helpful Experience

The following qualifications are preferred, not required:

Basic SharePoint administration and content development.

Exposure to Power Platform and a desire to learn Power Automate.

Experience securing Microsoft 365 for NIST SP 800-171 compliant handling of Controlled Unclassified Information (CUI).

Preferred Certifications

The following certifications are preferred, not required:

CompTIA Security+ and CompTIA Network+.

Microsoft Certified: Endpoint Administrator Associate (MD-102); Identity and Access Administrator Associate (SC-300); Azure Administrator Associate (AZ-104).

Microsoft Certified: Security, Compliance, and Identity Fundamentals (SC-900).

Microsoft 365 Certified: AI Services Administrator Associate.

Other relevant certifications include Administrator Expert, Azure Solutions Architect Expert, Team Administrator Associate, and Microsoft 365 Copilot and Agent Administration Fundamentals.

What We Are Looking For

You bring excellent problem-solving and root cause analysis abilities, strong organizational and documentation skills, and the ability to work independently with minimal supervision. You have a team‑oriented, customer‑first approach, adapt to changing priorities and emerging technologies, and exercise professionalism and discretion when handling sensitive information. You are comfortable working in a fast‑paced, collaborative environment supporting a geographically dispersed workforce.

Benefits Provided by Our Client

Medical, dental, and vision coverage.

Employer matching contributions to a 401(k) retirement plan.

Competitive compensation and bonus opportunities.

Support for continuing education and professional growth, including tuition reimbursement.

Paid leave and holidays.

Hybrid working arrangements, consistent with the onsite requirements above.

BizFirst LLC is an Equal Opportunity Employer and does not discriminate on the basis of race or ethnicity, religion, sex, national origin, age, veteran status, disability, or genetic information, or any other reason prohibited by law in employment.

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