JOB DETAILS

Windows & Linux System Administrator

CompanyINFORMATION SYSTEMS SOLUTIONS, INC
LocationSan Diego
Work ModeOn Site
PostedAugust 15, 2026
About The Company
ISS is an innovative information technology (IT) services and solutions provider to the Department of Defense (DoD) and other federal government agencies. We provide expert systems integration and administration, network engineering, software development, information assurance, and project management support. ISS employees are skilled professionals dedicated to providing the highest quality support and services. We are committed to the success of our customer’s mission and experienced in "Meeting Critical Goals on Time Throughout the World."​ Why Work For ISS? At Information Systems Solutions (ISS), we pride ourselves on providing an employee-focused and family first environment. Being a small business, we take the time to get to know our employees and have a vested interest in helping them achieve their career goals. We work to schedule regular social gatherings within the company to foster camaraderie. ISS values their employees by providing a comprehensive benefits package that includes a fully vested 401(k) matching program, coverage of family medical deductibles, spot bonuses, and educational assistance to further your career.
About the Role

Description

Information Systems Solutions (ISS) is looking for a candidate to provide Windows & Linux System Administrator to support on the Research, Development, Test, and Evaluation (RDT&E) network and in separate secure enclaves supporting NIWC PAC. The selected candidate will ensure existing infrastructure remains secure and assist with the design and engineering of new capabilities. 


This position is 100% onsite.

Specific job duties include, but are not limited to the following:

· System Administration to include Windows 11 and RHEL

· Developing and using PowerShell and bash scripts

· Providing technical engineering and design reviews for current and new infrastructure.

· Hardening servers to DISA standards (compliance with STIG, CTO, and other guidance)

· Automation using Ansible playbook. 

· Maintaining asset tracking database, working with team to develop SOPs

· Assisting with obtaining quotes and procuring assets from vendors

· Assisting with shipping equipment to remote teams


Why Work For ISS?

At ISS we pride ourselves on providing an employee-focused and family first environment. Being a small business, we take the time to get to know our employees and have a vested interest in helping them achieve their career goals. We work to schedule regular social gatherings within the company to foster camaraderie. ISS values their employees by providing a comprehensive benefits package that includes a fully vested 401(k) matching program, coverage of family medical deductibles, spot bonuses, and educational assistance to further your career.

Requirements

Clearance Level

Secret


Certifications (IAT Level II)

One of the following:

· Security+ CE

· GIAC Security Essentials Certification (GSEC)

· Security Certified Network Professional (SCNP)

· System Security Certified Practitioner (SSCP)


Required Skills

· 3+ Years of Experience with Windows Systems

· 3+ Years of Experience with RHEL Systems

· Developing and using PowerShell and bash scripts

· Experience with the IAVM process (STIGs and patches)


Desired Skills

  • Windows/RHEL System Administration Experience
  • Automation using Ansible playbook. 
  • Experience with endpoint security
Key Skills
Windows 11RHELPowerShellBashAnsibleSystem administrationSTIG complianceIAVM processInfrastructure designAsset trackingEndpoint securityTechnical engineering
Categories
TechnologySecurity & SafetyEngineeringGovernment & Public Sector
Benefits
401(k) matching programFamily medical deductible coverageSpot bonusesEducational assistance
Job Information
📋Core Responsibilities
The system administrator will manage and secure Windows and Linux infrastructure within RDT&E networks and secure enclaves. Responsibilities include hardening servers to DISA standards, automating tasks with Ansible, and providing technical engineering support.
📋Job Type
full time
💰Salary Range
$105,000 - $115,000
📊Experience Level
2-5
💼Company Size
165
📊Visa Sponsorship
No
💼Language
English
🏢Working Hours
40 hours
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