.png)


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.