Senior System Administrator

ADP, Inc.; Herndon (VA); On-site; USD 90,000 - 130,000; Full time

Job summary

Visionary Solutions, LLC is seeking a Senior Systems Administrator in Herndon, VA to lead enterprise Windows Server, AD, virtualization, and cloud infrastructure. This role reports to IT leadership and requires active TS/SCI clearance, DoD RMF knowledge, and hands-on expertise across on-premises, cloud, and hybrid environments.

The ideal candidate will design, implement, and optimize server platforms, storage, backup, and security controls, mentor junior staff, and collaborate with network and

Qualifications

• Bachelor's degree in computer engineering, computer science or related field; substitutions possible.
• 8+ years in computer systems, networking and IT configuration.
• Proof of certifications such as Security+, CISSP, CASP+, CCNA, Azure, or AWS required.
• DoDD 8140/8570 IAT level I or IAM level III certification required.

Responsibilities

• Administer and maintain enterprise Windows Server environments.
• Manage Active Directory, Group Policy, DNS, DHCP and identity services.
• Administer VMware vSphere and Proxmox virtual infrastructure.
• Support Microsoft Azure and Microsoft 365 cloud services.
• Develop automation scripts (PowerShell, etc.) and perform security remediation.

Skills

Active Directory

PowerShell

Python

Cloud services

VMware vSphere

Linux/UNIX

Networking (LAN/WAN)

Azure

Education

Bachelor's degree in computer engineering or related field

Tools

Veeam

Proxmox

Microsoft 365

Job description

If you are unable to complete this application due to a disability, contact this employer to ask for an accommodation or an alternative application process.

Senior System Administrator

Full Time Herndon, VA, US

4 days ago Requisition ID: 1018

Overview:

Job Title: Senior Systems Administrator

Work Location: Herndon, VA

Security Clearance: Active TS/SCI

Schedule: Full-Time

FLSA Status: Exempt

Due to the nature of the work and contract requirements, U.S. citizenship is required.

Responsibilities:

We are seeking an experienced individual to join our teams as a Senior Systems Administrator. This position will report directly to the Director of Information Technology (IT) and work within IT department. The Senior Systems Administrator is responsible for the administration, maintenance, security, and performance of the enterprise server infrastructure. This position provides advanced technical support for Windows and virtual server environments, Active Directory services, enterprise storage, backup and recovery, and cloud-integrated infrastructure.

Other responsibilities may include:

• Administer and maintain enterprise Windows Server environments.
• Install, configure, monitor, and support physical and virtual server infrastructure.
• Manage Active Directory, Group Policy, DNS, DHCP, and identity services.
• Administer VMware vSphere and Proxmox virtual infrastructure.
• Support Microsoft Azure and Microsoft 365 cloud services.
• Perform operating system upgrades, patch management, and security remediation.
• Monitor system performance, availability, and capacity using enterprise monitoring tools.
• Troubleshoot complex server, storage, virtualization, and operating system issues.
• Maintain enterprise backup, disaster recovery, and business continuity solutions.
• Implement and maintain cybersecurity best practices in accordance with DoD RMF standards.
• Develop PowerShell and other automation scripts to streamline administration and operational tasks.
• Coordinate server builds, migrations, upgrades, and infrastructure refresh projects.
• Create and maintain technical documentation, architecture diagrams, and standard operating procedures.
• Collaborate with network engineers and cybersecurity personnel.
• Participate in scheduled maintenance windows and provide after-hours support as required.
• Mentor junior administrators and provide technical leadership on infrastructure initiatives.

Qualifications:

• Bachelor's degree in computer engineering, computer science, information technology, or related field required; additional work experience and/or education can be substituted and considered in lieu of degree.
• Eight (8) or more years of experience in computer systems, networking and information technology configuration.
• Proof of continued education, such as hardware and/or software certifications (Security+. CISSP, CASP+ CE, CCNA, Azure, AWS, etc.) required.
• Minimum DoDD 8140/8570 certification of Information Assurance Technical (IAT) - level I or Information Assurance Management (IAM) - level III
• Experience with Microsoft 365, Active Directory, Virtual hypervisors (such as Vsphere), Linux/UNIX administration, LAN/WANs
• Experience with software development (Scripting, Python, Java, etc.) preferred/desired.
• Extensive knowledge of cloud, on-premises, and hybrid services, as well as infrastructure and security domains.
• Strong analytical and problem-solving skills, with the ability to identify issues, analyze root causes, and develop practical solutions.
• Must be able to lift/carry/move up to 50lbs.
• Ability to thrive in a fast-paced, dynamic startup environment and manage multiple priorities with competing deadlines.
• Must be able to obtain or verify an active TS/SCI security clearance.
• Must be able to pass a background check and drug test.

Preferred Qualifications:

• CompTIA Security+ or equivalent security certification.
• Experience supporting enterprise storage technologies (SAN/NAS).
• Experience with Veeam enterprise backup and disaster recovery solutions.
• Experience with PowerShell scripting and infrastructure automation.

Physical Requirements:

The work is performed in an office environment and is primarily sedentary in nature. The individual will be required to remain in a stationary position for prolonged periods of time and alternate between different stationary positions. The individual must also be able to move about the office at times. This position requires the ability to communicate frequently. This position may occasionally require the ability to ascend stairs, reach, stoop, kneel, lift light to medium objects, view and operate a computer, keyboard, telephone, and other office equipment and to withstand moderate noise and temperatures.

This position does require travel between various customer sites, in addition to travel for customer meetings, and other government and/or contractual needs.

Visionary Solutions EEO:

Visionary Solutions, LLC. is committed to utilizing technology to transform real-world problems into innovative solutions. By ensuring we provide the right resources at the right time, our purpose as a partner is to provide experience from idea to application, encompassing a wide range of complex systems and utilizing technical skills, hands-on experience, and critical thinking abilities to achieve our customer’s success. We are always on the search for dedicated and passionate people to join our team.

Visionary Solutions is an Equal Opportunity Employer (EEO), focused on creating a culture of trust, equity, and inclusion. All qualified applicants are invited to apply to our openings and will receive equal consideration for employment, regardless of race, color, gender identity, religion, age, sex, sexual orientation, national origin, disability status, veteran status, or any other characteristic protected by law. In doing so, we affirm our commitment to foster a workplace e nvironment free from unlawful discrimination, harassment, and retaliation.