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R3 LLC · 2 days ago

System Administrator

McLean, VA

Full-time

Hybrid

Mid, Senior Level

$90K/yr - $110K/yr

7+ years exp

R3 LLC is committed to providing best-in-class IT solutions and is seeking a talented Senior Systems Administrator to join their team. In this role, you will manage and support Microsoft-based systems, oversee incident resolution, and lead infrastructure improvement initiatives while ensuring operational consistency through documentation and best practices.

ConsultingNetwork SecurityProfessional Services

Comp. & Benefits

No H1B

U.S. Citizen Only

Hiring Manager

Alexis Van Bevers

Responsibilities

Provide ongoing support and mentorship to junior staff and peers

Manage incident and problem resolution, including root cause analysis

Handle hardware and software troubleshooting, end-user support, and ticket handling

Manage and implement assigned project-based solutions, communicating progress to stakeholders

Develop and maintain knowledge base articles and run books

Assist in planning, installation, and support of client cloud systems infrastructure

Support on-premises hardware and software and cloud-based devices and related software

Troubleshoot and resolve issues related to client infrastructure

Participate in on-call, after-hours, and weekend support as needed

Qualification

AzureMicrosoft 365IntuneDefender for EndpointWindows ServerActive DirectoryTCP/IP networkingITILMCPNetwork troubleshooting

Required

7+ years of experience administering Microsoft Microsoft-based solutions and products: Azure, Microsoft 365, Intune, Defender for Endpoint, Teams, Exchange Online, Windows Server, Active Directory, etc

U.S. Citizen (Federal client requirement)

Bachelor's degree in information technology/security, Computer (Information) Science, Management Information Systems, or related discipline Or 10+ years of demonstrated experience in systems administration with a focus on Microsoft and Cloud Technologies

Preferred

Preferred certifications: MCP, Microsoft Certified: Azure Solutions Architect Expert, Azure Administrator Associate, Azure Virtual Desktop Specialty

Familiarity with industry best practices and standards (ITIL, ISO 20000-1, CMMI-SVCs) a plus

Technical knowledge of tools like ConnectWise Automate, Hudu, Mimecast, Meraki, etc

Familiarity with network troubleshooting

Knowledge of TCP/IP networking and related network services (i.e. DNS, SMTP, DHCP, etc.)

Benefits

Comprehensive medical, dental, and vision insurance plans to keep you and your family healthy.

401(k) with company match to help you plan for the future.

Flexible time off policies to ensure you maintain a healthy work-life balance.

We offer many remote opportunities, allowing you to work wherever you want.

We are committed to creating a positive impact on society and contributing to a better world--we're involved in our community and encourage our employees to do the same.

We strive to be better and encourage our employees to do the same by offering training incentives and bonuses to help you and your career grow.