Systems Administrator
Tenaxtech· enterprise· Defense & Space· Oct 19, 2026 · 9d ago
Horsham, Pennsylvania
In office
Full-time
Senior
$121K–$180K est.
3+ years exp
Job description
Systems Administrator - TS/SCI
Job Description
TENAX Technologies is seeking a Systems Administrator to support the Air National Guard (ANG) Remotely Piloted Aircraft Special Operations Center (RPA-SOC).
This is a hands-on technical position supporting mission-critical IT infrastructure used in 24/7/365 RPA operations . The Systems Administrator will work with physical and virtual servers, VMware, Active Directory, enterprise storage, Windows systems, backups, patching, cybersecurity requirements, and specialized mission systems in a secure environment.
This position is ideal for a cleared IT professional who enjoys troubleshooting complex systems, working directly with customers and technical teams, and taking ownership of issues from identification through resolution.
Salary Range: $70,000-$85,000 per year
Starting salary is based on experience, certifications, technical background, and overall qualifications. Most qualified candidates can expect a starting salary between $70,000 and $80,000 , with compensation toward the upper end of the range available for candidates with advanced certifications, extensive experience, or highly relevant technical expertise.
Key Responsibilities
Administer and maintain Windows servers, workstations, virtual machines, storage systems, and software supporting RPA operations.
Perform Active Directory administration , including user accounts, permissions, Group Policy, and related Windows services.
Administer and troubleshoot VMware virtualized environments , including ESXi, vCenter, and virtual servers.
Maintain SAN/storage, backups, data retention, and system recovery capabilities .
Troubleshoot server, workstation, hardware, software, network, storage, and application issues.
Install, configure, patch, upgrade, and maintain physical and virtual systems.
Perform system backups and maintain configurations for critical equipment.
Support STIG compliance, vulnerability remediation, IAVA requirements, patching, and DoD cybersecurity requirements .
Troubleshoot Dell and other commercial server, workstation, and storage hardware.
Support specialized video encoding, decoding, recording, and communications systems .
Configure and maintain systems to meet security baselines and operational requirements.
Work directly with military personnel, Government customers, engineers, and other technical staff to troubleshoot issues and maintain mission availability.
Required Qualifications
3-5+ years of Systems Administration or related IT experience preferred.
Hands-on experience with Windows Server and Windows workstations .
Experience with Active Directory administration .
Experience working in VMware or other virtualized server environments .
Experience with servers, storage/SAN technologies, backups, software installation, and patching.
Working knowledge of computer networking and network-connected systems.
Understanding of cybersecurity practices and maintaining secure IT environments.
Strong troubleshooting and problem-solving skills.
Ability to work independently and as part of a technical team.
Ability to communicate effectively with technical personnel, users, military leadership, and Government customers.
Clearance & Certification Requirements
Candidates must meet both requirements to be considered:
Active Top Secret (TS) security clearance with eligibility for TS/SCI access.
Current CompTIA Security+ CE or equivalent DoD 8140 IAT Level II certification.
Preferred Qualifications
Experience or certifications in any of the following are a plus:
VMware vSphere / ESXi / vCenter
Microsoft Windows Server
Active Directory / Group Policy
SAN and enterprise storage
Dell server and storage hardware
Backup and recovery solutions
ACAS / vulnerability management
STIG implementation and remediation
Network administration and troubleshooting
Video encoding/decoding systems
CCNA
VMware VCTA or VCP
Microsoft Administrator certifications
CompTIA Server+
Other relevant systems, networking, virtualization, or cybersecurity certifications
Why Join TENAX?
This is not a typical corporate Systems Administrator position. You'll support a unique, mission-focused environment where your technical work directly contributes to Air National Guard RPA operations.
The position provides exposure to a broad range of technologies, including systems administration, virtualization, enterprise storage, networking, cybersecurity, video systems, and specialized mission technologies .
You'll also work alongside experienced Systems Administrators, Network Administrators, engineers, military personnel, and Government customers while continuing to develop your technical skills.
Benefits
TENAX Technologies offers a comprehensive benefits package, including:
401(k)
401(k) matching
Health insurance
Dental insurance
Vision insurance
Health Savings Account (HSA)
Flexible Spending Account (FSA)
Life insurance
Paid time off
Parental leave
Tuition reimbursement
Employee referral program
Retirement benefits
Schedule
Full-time, on-site position.
The RPA-SOC operates 24/7/365. Depending on the assigned shift and mission requirements, schedules may include:
Day shift
Evening shift
Night shift
10-hour or 12-hour shifts
Work Environment
This is an in-person position supporting systems within a secure facility . Work is primarily performed in an office and technical environment. The position may occasionally require lifting equipment weighing up to approximately 30 pounds.
Job Type: Full-time
Salary: $70,000-$85,000 per year
Work Location: In person
Required Certification
CompTIA Security+ CE or equivalent DoD 8140 IAT Level II certification
Required Security Clearance
Active Top Secret (TS) with eligibility for TS/SCI
Application prep
Use the role’s language and application details while tailoring your materials.
- Platform
- bamboohr
- Effort
- medium
Benefits
Benefits detected in the listing.
Health Insurance
Dental
Vision
401(K)
Paid Time Off
Parental Leave