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# System Admin

- **Company:** Iquasar, LLC.
- **Location:** San Diego, CA, United States (Remote available)
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Secure Shell (SSH), Microsoft Windows, Active Directory, Business Analytics Applications, Apple Mac Systems, Border Gateway Protocol, Ubuntu (Operating System), Cloud Computing, Cyber Security, Information Systems, Computer Engineering, System Configuration, Linux, Hot Standby Router Protocol, Identity and Access Management, Networking Hardware, Internet Protocol Security (IP SEC), Virtual Private Networks (VPN), Network Security, Network Troubleshooting, Linux System Administration, Linux Distribution, Microsoft Office, Network Architecture, Network Monitoring, Network Protocols, Open Shortest Path First (OSPF), Open Systems Interconnection (OSI), Azure Active Directory, Service Pack, Software Engineering, Systems Integration, Data Logging, Network Routers, Diagnostic Tools, Load Balancing, Sysadmin, Grafana, Firewalls (Computer Science), Microsoft InTune, Information Technology, SDN Network, Network Support
- **Published:** August 6, 2026
- **Apply:** https://www.wayup.com/i-j-System-Admin-IQUASAR-LLC-394172843639101/

## About the Role

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 Associate's degree and DoDInst. 8570 IAT Level 2 in lieu of a bachelor's degree; or 8+ years of experience and DoDInst. 8570 IAM Level 2 in lieu of a bachelor's degree; or 4+ years of experience with a master's 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, 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:
Bachelor's degree in electrical engineering, Computer Engineering, Computer Science, Information Technology, or a related quantitative fie

## Description

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


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