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System Admin

Job Location:

San Diego, CA - USA

Hourly Salary: $ 25 - 35

Posted: 14 June 2026 (30+ days ago)

Application Deadline: 11 September 2026

Vacancies: 1 Vacancy

Job Summary

iQuasar is seeking to fill an Systems Administrator in San Diego CA. At iQuasar we strive to provide the next generation of cutting-edge technologies. Our growth means exciting career opportunities for talented professionals in engineering software development and other key areas. We offer competitive compensation and benefits including Health Vision and Dental Insurance a matching 401 (k) plan and other benefits given below excellent training and a vibrant working environment. Our employees are exceptional giving us a competitive advantage by innovating solutions with a strong sense of mission and integrity.

One of our clients in San Diego CA needs a System Admin for a full-time position.

Position: Linux System Admin
Location: San Diego CA
Clearance Level: Secret
Job Type: Part Time (up to $25 hours/week)

JOB DESCRIPTION:

iQuasar is seeking an experienced Information Systems Administrator (SysAdmin) to assist in the design implementation maintenance and support of the corporate network infrastructure in a mission-critical environment. The successful candidate will have a strong foundation in secure network architecture system integration Windows/MacOS/Linux administration and familiarity with Cybersecurity Maturity Model Certification (CMMC) cybersecurity frameworks.

REQUIREMENTS:

Well-versed in Windows Linux and MacOS.
6 years of experience with an Associates degree and DoDInst. 8570 IAT Level 2 in lieu of a bachelors degree; or 8 years of experience and DoDInst. 8570 IAM Level 2 in lieu of a bachelors degree; or 4 years of experience with a masters degree in information systems Computer Science or similar computing focused engineering.
3-4 years of experience managing secure network environments and infrastructure
Deep understanding of networking protocols (e.g. IPSEC HSRP BGP OSPF 802.11 QoS SSH) VPNs and Firewalls
Proficient in both cloud and on-premises environments and establishing a strong software development focused environment at TRABUS
Solid understanding of OSI or TCP/IP models and software-defined networking with Access Control Policies.
Proficiency in managing Windows MacOS and LINUX-based systems
Experience supporting federal systems and complying with federal cybersecurity standard
Familiarity with CMMC Level 2 controls and implementation practices
Experience with network monitoring and diagnostic tools

RESPONSIBILITIES:

Help and assists in configuring and installing various network devices and services (e.g. routers switches firewalls load balancers VPN QoS)
Assist in performing network maintenance and system upgrades including service packs patches hot fixes and security configurations
Assist in the monitoring of network performance and health ensuring continuous system uptime and reliability
Track overall system resource utilization trending and capacity planning using logging and analytical tools such as Intune and Grafana.
Provide Level 2/3 support and troubleshooting for network issues
Perform routine updates and configuration cycles for Windows 11/Server 2016/2019 Ubuntu and other LINUX distributions as well as MacOS systems
Help to administer and support Windows Active Directory Azure Active Directory and Office 365 environments
Configure and manage VPNs (specifically WireGuard VPN) and establish isolated network and safe computing environments
Ensure compliance with configuration and change management processes
Help to implement and support CMMC compliance practices including documentation secure access control and logging of system data and policies.
Work collaboratively with security personnel and vendors for problem resolution and implementation of cybersecurity best practices
Work closely with development teams and platform engineers in deploying robust and CMMC compliant network environments that facilitates efficient software development work

DESIRED:

8 years of experience handling secure networks and infrastructure
Security or equivalent DoDInst. 8570 IAT Level II certification
Advanced LINUX/Unix-based system administration and security hardening experience
Clearance: Active Top Secret or Top Secret Eligible (SCI eligibility preferred).

EDUCATION:

Bachelors degree in electrical engineering Computer Engineering Computer Science Information Technology or a related quantitative fie

If you are interested in this position please send me a copy of your latest resume at / with the information requested below: Also please let me know what time/number is best to call to discuss this great case you are not interested in this position or this is not a right fit for you please feel free to share this opportunity with your friends/networks or anyone you know who may be interested in this position.

Thank you!

Availability to start a new job
Best Rates
Contact #

Please dont hesitate to contact me for any questions you may have. All employment is decided on the basis of qualifications merit and business need.

Regards

Zain Wani

Senior Recruitment Professional
iQuasar LLC
Cleared Recruitment Proposal Development Technology
/
Direct: (703)
Main: (703)Ext. 538

An Equal Opportunity Employer

iQuasar is proud to be an Equal Employment Opportunity Employer. We do not discriminate based on race religion color national origin political affiliation sex sexual orientation gender identity age marital/parental /veteran status disability genetic information membership in an employee organization retaliation military service other non-merit factors or any other applicable characteristics protected by law.

Flexible work from home options available.

Compensation: $25.00 - $35.00 per hour

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