JT4, LLC provides engineering and technical support to multiple western test ranges for the U.S. Air Force, Space Force, and Navy under the Joint Range Technical Services Contract, better known as J-Tech II. JT4 develops and maintains realistic, integrated test and training environments and prepares our nation's war-fighting aircraft, weapons systems, and aircrews for today's missions and tomorrow's global challenges.
JOB SUMMARY - ESSENTIAL FUNCTIONS/DUTIES
We are seeking a highly skilled Senior Systems Administrator with deep expertise in managing secure, enterprise-grade IT environments within federal or DoD frameworks. This individual will:
- Provide Tier III technical support, conduct root cause analysis, and implement sustainable solutions for complex system issues.
- Administer Windows and Linux servers--including strong working knowledge of Red Hat Enterprise Linux--Active Directory forests, and virtualization platforms (VMware, Hyper-V), ensuring compliance with federal cybersecurity mandates.
- Ensure security and compliance across classified and unclassified systems using DoD STIGs, RMF, and maintain ATO status through patching, hardening, and vulnerability remediation.
- Maintain rigorous documentation for configuration baselines, change control, and audit readiness.
- Collaborate with federal stakeholders and cybersecurity teams to translate operational needs into secure, compliant technical solutions.
- Support system onboarding and enterprise integration, ensuring smooth deployment aligned with agency directives.
- Automate system provisioning and compliance tasks using scripting languages such as PowerShell, Bash, or Ansible.
- Possess working knowledge of Cisco and Juniper network switches, supporting secure network configurations, troubleshooting connectivity issues, and contributing to overall infrastructure resilience.
REQUIREMENTS - EDUCATION, TECHNICAL, AND WORK EXPERIENCE
BENEFITS
- Medical, Dental, Vision Insurance
- **Benefits Active on Day 1
- Life Insurance
- Health Savings Accounts/FSA's
- Disability Insurance
- Paid Time Off
- 401(k) Plan Options with Employer Match
- JT4 will match 50%, up to an 8% contribution
- 100% Immediate Vesting
- Tuition Reimbursement
OTHER RESPONSIBILITIES
Will be asked to make functional the initiatives established by management and will coordinate with other organizations as affected by upgrades, capabilities, policy and procedures. Each employee must read, understand, and implement the general and specific operational, safety, quality, and environmental requirements of all plans, procedures, and policies pertaining to their job.WORKING CONDITIONS
This position involves work typical of an office environment with no unusual hazards. There is occasional lifting (up to 20 pounds), constant sitting and use of a computer terminal, constant use of sight abilities while writing, reviewing, and editing documents, constant use of speech/hearing abilities for communication, and constant mental alertness.
DISCLAIMER
The above statements are intended to describe the general nature and level of work being performed by personnel assigned to this classification. They are not intended to be construed as an exhaustive list of all responsibilities, duties, and skills required of persons so classified.
Tasking is in support of a Federal Government Contract that requires U.S. citizenship. Some jobs may require a candidate to be eligible for a government security clearance, state-issued driver's license or other licenses/certifications, and the inability to obtain and maintain the required clearance, license or certification may affect an employee's ability to maintain employment.
SCC: CSAN6, JIT13, A1412TW
Top Skills
What We Do
JT4 provides engineering and technical support to multiple western test ranges for the U.S. Air Force and U.S. Navy under the Joint Range Technical Services Contract, better known as J-Tech II. Ranges supported by JT4 include the Nevada Test and Training Range (NTTR), the Space Test and Training Range (STTR) at Schriever Air Force Base, the Utah Test and Training Range (UTTR), the Air Force Test Center 412th Test Wing (412TW) at Edwards Air Force Base, and the Navy China Lake Ranges (CLR) including Pt. Mugu, California.
