System Administrator

G2 Ops • San Diego, CA

6d • $70,000 - $80,000 • Onsite

About The Position

For this opportunity, we are seeking a highly motivated, team-oriented System Administrator . This exciting position will have the chance to work on just about any aspect there is as it pertains to administering and securing classified LAN/WAN networks, enforcing DoD cybersecurity policies, and ensuring availability and resiliency of mission systems supporting the DoD, while also providing hands-on IT support to our internal team. What does this mean to you? We are seeking expertise in secure network and system administration such as: Proven expertise in administering and maintaining Windows and Linux networks in classified environments . Experience in designing , implementing , and maintaining LAN/WAN equipment ; continuous monitoring , backup , and recovery . Ability to apply DISA STIGs , DCSA/DoD standards , and results from SCAP Compliance Checker (SCC) to achieve secure configurations and compliance . Conducting regular vulnerability scanning and remediation using ACAS/Nessus ; documenting findings and implementing fixes . Configuring and managing endpoint protection and access controls in accordance with DoD requirements . Performing configuration management for systems to ensure updates , patches , and changes are documented and secure . Providing first‑line IT support : troubleshoot Windows 10/11 , M365/O365 , VPN, printers, and peripherals; manage the ticketing system for timely resolution and escalation. Setting up and maintaining workstations and peripherals ; imaging devices and managing hardware lifecycle. Strong collaboration , communication , and customer support skills while working directly with government stakeholders and internal users. At G2 Ops, you can have it all. We offer competitive pay and benefits, but what truly sets us apart is our collaborative culture. Here, you’re never just a payroll number or a cog in the machine; you’re part of a team that ensures every member is set up for success. Our team approach allows for each member to not only provide value with their expertise but also gives them the opportunity to cross-train in other areas in which they have an interest. A t G2 Ops, we don’t just talk about AI, we use it. Our recent company-wide AI usage survey shows over 75% of our team is actively engaging with AI tools , making us a leader in real-world adoption among engineering, cybersecurity, and defense firms. Led by our Director of Operations for Production, the initiative has already identified clear, actionable ways for every role, technical and operational, to harness AI effectively. From engineering automation to proposal generation and risk modeling, G2 Ops is embedding AI directly into how we work. We’re now launching the next phase: AI playbooks, secure tooling aligned with government security protocols, and real-time support for hands-on use across all departments. At G2 Ops, you'll not only work with cutting-edge technology , you'll help define how it's applied in real mission environments. At G2 Ops, we offer a flexible schedule to meet the needs of our team members and customers. Due to the classification level of the projects we support as a Defense Contractor, we cannot offer fully remote opportunities at this time. You will have a shiny desk at our G2 Ops office and the ability to telework with prior approval. We’ve worked hard to create a great culture where our team gets to come to a collaborative, exciting office environment, and we want you to join the fun!

Requirements

• 3+ years of relevant experience
• Must be able to obtain and maintain Active DoD Top Secret Clearance
• Proven expertise in administering and maintaining Windows and Linux networks in classified environments
• Experience in designing, implementing, and maintaining LAN/WAN equipment; continuous monitoring, backup, and recovery
• Ability to apply DISA STIGs, DCSA/DoD standards, and results from SCAP Compliance Checker (SCC) to achieve secure configurations and compliance
• Conducting regular vulnerability scanning and remediation using ACAS/Nessus; documenting findings and implementing fixes
• Configuring and managing endpoint protection and access controls in accordance with DoD requirements
• Performing configuration management for systems to ensure updates, patches, and changes are documented and secure
• Providing first‑line IT support: troubleshoot Windows 10/11, M365/O365, VPN, printers, and peripherals; manage the ticketing system for timely resolution and escalation
• Setting up and maintaining workstations and peripherals; imaging devices and managing hardware lifecycle
• Strong collaboration, communication, and customer support skills while working directly with government stakeholders and internal users

Nice To Haves

• Active DoD Secret or Top Secret level clearance
• Security+ CE or IAT II equivalent

Responsibilities

• Administering and maintaining Windows and Linux networks in classified environments
• Designing, implementing, and maintaining LAN/WAN equipment
• Continuous monitoring, backup, and recovery
• Apply DISA STIGs, DCSA/DoD standards, and results from SCAP Compliance Checker (SCC) to achieve secure configurations and compliance
• Conducting regular vulnerability scanning and remediation using ACAS/Nessus; documenting findings and implementing fixes
• Configuring and managing endpoint protection and access controls in accordance with DoD requirements
• Performing configuration management for systems to ensure updates, patches, and changes are documented and secure
• Providing first‑line IT support: troubleshoot Windows 10/11, M365/O365, VPN, printers, and peripherals; manage the ticketing system for timely resolution and escalation
• Setting up and maintaining workstations and peripherals; imaging devices and managing hardware lifecycle
• Working directly with government stakeholders and internal users

Benefits

• 100% company-paid insurance for medical, dental, and vision for eligible employees and family members
• 100% company-paid insurance for life, short-term (STD) and long-term disability (LTD) for eligible employees
• 401(K) Plan with discretionary employer matching
• 10 paid holidays
• Paid time off (PTO)
• Educational assistance
• Work/life balance
• Family-oriented culture
• Competitive salaries

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Education Level: No Education Listed