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Senior Systems Administrator
- Chantilly, Virginia, United States
- Chantilly, Virginia, United States
À propos
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.
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Compétences linguistiques
- English
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