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Senior Systems Administrator

POSTED: 5/15/2026

Fulcrum Vets is looking to add a Senior Systems Administrator with expertise in supporting Windows Server Active Directory environments to join our team. This position will play a key role in the management, optimization, securing, and troubleshooting of environments, ensuring seamless and reliable operations for the organization.

This position will be onsite in Chantilly, VA.

Clearance: An active Top Secret/SCI clearance with CI Poly is required. Candidates who do not meet these clearance requirements will not be considered.

Responsibilities:

  • Designing, implementing, and maintaining environments, including vCenter, ESXi hosts, and virtual machines.

  • Performing regular backups, disaster recovery, and high-availability configurations for VMware environments.

  • Troubleshooting and resolving VMware-related issues, including performance bottlenecks, connectivity problems, and resource allocation.

  • Automating routine VMware tasks using PowerCLI and other scripting tools to improve efficiency.

  • Managing, monitoring, and troubleshooting Active Directory (AD) and Group Policy infrastructure.

  • Administering and supporting user and group management, including security and distribution groups within Active Directory.

  • Assisting in the design, implementation, and maintenance of AD services such as DNS, DHCP, and authentication.

  • Configuring and implementing security policies and configurations, including Group Policies.

  • Conducting regular audits and health checks and resolving issues promptly.

  • Overseeing the deployment, configuration, and maintenance of system hardware and software.

  • Ensuring uptime and performance of critical systems, including servers, storage, and network infrastructure.

  • Collaborating with other IT teams to manage system integration, configuration, and upgrades.

  • Providing leadership and mentoring to junior administrators and technical support teams.

  • Implementing security configurations for Active Directory environments and ensuring systems meet industry standards and compliance requirements.

  • Regularly reviewing security logs and identifying and addressing potential vulnerabilities or weaknesses.

  • Responding promptly to escalated system and infrastructure incidents and providing root cause analysis.

  • Creating and maintaining comprehensive documentation for systems architecture, processes, and configurations.

  • Preparing reports on system performance, resource utilization, and incident resolution for management.

 

Required Qualifications:

  • Active TS/SCI with active CI Polygraph clearance.

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

  • Extensive experience with Active Directory, including user/group management, Group Policy, and DNS/DHCP.

  • Strong knowledge of Windows Server and client operating systems.

  • Experience with PowerShell scripting for automation, management, and reporting.

  • Expertise in troubleshooting and resolving complex system issues in hardware and software.

  • Strong knowledge of IT security principles, including encryption, firewalls, and intrusion detection/prevention.

  • Experience with backup and disaster recovery strategies.

  • Full-time work in a Sensitive Compartmented Information Facility (SCIF) is required, with flexible hours.

 

Desired Qualifications:

  • Strong analytical and troubleshooting skills with a detail-oriented focus on high-quality results.

  • Excellent communication and interpersonal skills, with the ability to work independently as well as part of a team.

  • Ability to manage multiple projects and prioritize tasks effectively.


Click on the blue "Submit My Resume" below to start the process, or email gene.walker@fulcrumvets.com.

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