Senior Systems Administrator (TS/SCI)

Peraton; Maryland; On-site; USD 112,000 - 179,000; Full time

Job summary

Peraton is seeking an experienced Senior Systems Administrator for an on-site role in Annapolis Junction, MD. The candidate will provide system engineering, application, and hardware support for mission-critical federal systems and must hold an active TS/SCI clearance with polygraph ability.

The role involves Windows server administration, virtualization support on Hyper‑V, and proactive monitoring to ensure security, performance, and data integrity for critical workloads.

Qualifications

• US Citizenship required and active TS/SCI clearance.
• Experience in Windows system administration and security.
• Strong customer support and troubleshooting skills.

Responsibilities

• Provide systems administration, engineering, and hardware support for federal systems.
• Proactively monitor platforms to maintain health and availability.
• Troubleshoot complex integration and data flow issues.
• Administer Windows servers, workstations, and drivers.
• Support virtualization of IAFIS servers on Hyper-V.
• Perform advanced Windows admin tasks and security configurations.
• Manage network connectivity, domains, and remote access.
• Perform system upgrades and patching for servers/desktops.
• Monitor SQL Server databases and Gordano email services.
• Respond to customer support requests and document resolutions.
• Support ad hoc reporting and technical research for the customer.
• Collaborate to maintain secure, reliable systems for federal missions.

Skills

Windows Server administration

System monitoring

Troubleshooting

Network administration

Remote Desktop

Security policies

Education

Bachelor's degree

Master's degree

Associates degree

High School diploma/equivalent

Tools

Microsoft Hyper-V

VMware

SQL Server

Job description

Responsibilities

Peraton has an exciting opportunity for an experienced Senior Systems Administrator to provide system engineering, application and hardware support working with a Peraton Federal Customer in Annapolis Junction, MD. This on-site position offers the right candidate the chance to contribute to important work in support of our country.

The right candidate will hold an active TS/SCI clearance, with the ability to obtain a polygraph if one is not currently held.

Work Location: Annapolis Junction, MD; onsite 5 days a week.

What you will do:

• Provide systems administration, engineering, application, and hardware support for mission-critical federal systems.


• Proactively monitor software and hardware platforms to maintain system health, performance, throughput, and availability.


• Troubleshoot complex system integration and data flow issues, identify disruptions, determine corrective actions, and restore system functionality and data integrity.


• Administer, configure, troubleshoot, and maintain Windows-based servers, workstations, and PCs, including operating systems, applications, hardware, and device drivers.


• Support the virtualization of IAFIS servers onto Microsoft Hyper‑V, including high availability, failover, backup, and system recovery capabilities.


• Perform advanced Windows system administration, including services, scheduled tasks, security policies, firewall and port configurations, registry settings, disk management, and user/group administration.


• Manage network connectivity, domains, users and machines, drive mapping, file permissions and sharing, access controls, and Remote Desktop.


• Perform system upgrades, customizations, vulnerability patching, and ongoing maintenance of servers, workstations, and peripherals.


• Monitor and troubleshoot SQL Server databases, processes, logs, and Gordano email services, including POP/SMTP communication issues.


• Respond to customer support requests by investigating, resolving, communicating, and documenting technical issues through resolution.


• Support ad hoc reporting, planning, and technical research requests from the customer.


• Collaborate with customers and technical teams to maintain secure, reliable, and highly available systems in support of federal mission requirements.

Qualifications

Basic Qualifications:

• Bachelors degree and 8 years of experience, or a Masters degree and 6 years of experience, or an Associates degree and 10 years of experience, or a High School diploma/equivalent and 12 years of experience.


• US Citizenship required.


• Active TS/SCI security clearance required.


• Experience in technical support, network engineering, systems engineering, Windows software engineering, or a related technical field.


• Strong knowledge of Windows operating systems, including system configuration, troubleshooting, services, scheduled tasks, security policies, firewall and port configuration, registry, disk management, and administrative tools.


• Excellent customer support and troubleshooting skills, including the ability to identify problems, communicate clearly with customers, resolve issues in a timely manner, and document solutions.


• Strong understanding of system integration and data flow, including the ability to troubleshoot issues across multiple system components, identify disruptions, determine corrective actions, and restore system functionality and data integrity.


• Experience monitoring system health, performance, throughput, and log files to proactively identify and resolve issues.


• Basic networking and systems administration experience, including network connectivity, domain/machine/user administration, drive mapping, file sharing, and Remote Desktop.


• Experience diagnosing and repairing Windows-based PCs, including hardware replacement, operating system and application installation/configuration, and device driver troubleshooting.


• Familiarity with file and directory permissions, access controls, and Windows security configurations.

Preferred Qualifications

• Active Polygraph level clearance preferred.


• Experience with Cisco switches, firewalls, and firewall rules.


• Experience installing and configuring server operating systems and RAID.


• Experience with virtualization technologies, such as VMware or Hyper‑V.


• Intermediate networking knowledge, including network topologies, communication protocols, and network layers.


• Training or experience with cloud platforms such as AWS or Microsoft Azure.

Peraton Overview

Peraton is a next-generation national security company that drives missions of consequence spanning the globe and extending to the farthest reaches of the galaxy. As the world’s leading mission capability integrator and transformative enterprise IT provider, we deliver trusted, highly differentiated solutions and technologies to protect our nation and allies. Peraton operates at the critical nexus between traditional and nontraditional threats across all domains: land, sea, space, air, and cyberspace. The company serves as a valued partner to essential government agencies and supports every branch of the U.S. armed forces. Each day, our employees do the can’t be done by solving the most daunting challenges facing our customers. Visit peraton.com to learn how we’re keeping people around the world safe and secure.

Target Salary Range

$112,000 - $179,000. This represents the typical salary range for this position. Salary is determined by various factors, including but not limited to, the scope and responsibilities of the position, the individual’s experience, education, knowledge, skills, and competencies, as well as geographic location and business and contract considerations. Depending on the position, employees may be eligible for overtime, shift differential, and a discretionary bonus in addition to base pay.

EEO

EEO: Equal opportunity employer, including disability and protected veterans, or other characteristics protected by law.