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System Administrator

Job in San Diego, San Diego County, California, 92189, USA
Listing for: Guidance Consulting
Full Time position
Listed on 2026-01-12
Job specializations:
  • IT/Tech
    Cybersecurity, Network Security, IT Support, Systems Engineer
Salary/Wage Range or Industry Benchmark: 125000 - 150000 USD Yearly USD 125000.00 150000.00 YEAR
Job Description & How to Apply Below

Training and simulation for military missions

Mission Support

Expertise to help agency and program office mission success

Digital Solutions

Advancing the efficiency, transparency and accessibility of services

Supporting complex and mission-critical operations

Cybersecurity

Supporting the security and integrity of critical systems and data

C5

ISR

Supporting situational awareness, decision-making and mission success

Contract Vehicles

Agency-Specific IDIQs

Indefinite Delivery Indefinite Quantity contracts

Multi-agency acquisition vehicles

GSA Schedules

Access a wide range of services

Small Businesses Partnerships

CSA started as a service-disabled veteran owned small business (SDVOSB).

Client Solution Architects (CSA) is currently seeking a Systems Administrator to support a program at San Diego, CA.

For nearly 50 years, CSA has delivered integrated technology and operational support services to meet the defense and federal sector's most complex enterprise needs. Working from operations centers and shipyards to training sites and program offices, CSA deploys experienced teams, innovative tools and proven processes to advance federal missions.

This position is contingent on contract award.

How Role will make an impact (Duties and Responsibilities):

Network Infrastructure:

  • Computer networking concepts, protocols, and security methodologies
  • Local Area Network/Wide Area Network (LAN/WAN) architecture and pathways
  • Bandwidth management principles and techniques
  • Network traffic flow (TCP/IP and OSI model)
  • Performance tuning tools and techniques
  • Remote access technologies
  • Virtual Private Network (VPN) security
  • Network protocols (TCP/IP, Dynamic Host Configuration Protocol (DHCP), Domain Name System (DNS), directory services)
  • Common network tools (e.g., ping, trace route, nslookup)
  • File system implementations (e.g., New Technology File System (NTFS), File Allocation Table (FAT), Extended File System (EXT))
  • Virtualization technologies and virtual machine management

Security Expertise:

  • IT security principles and methods (e.g., firewalls, demilitarized zones (DMZs), encryption)
  • Network security architecture concepts (topology, protocols, defense‑in‑depth)
  • Cybersecurity principles, threats, and vulnerabilities
  • National and international cybersecurity laws, regulations, and policies
  • Organizational IT user security policies (e.g., account management, access control)
  • Data security standards (PII, PCI, PHI)
  • System administration, network, and operating system hardening techniques
  • Software‑based computer protection tools (e.g., firewalls, antivirus, antispyware)
  • Knowledge of transmission records (Bluetooth, Radio Frequency Identification (RFID), Infrared (IR) transmission, Wi‑Fi, etc.) and jamming techniques

System Administration:

  • Server and client operating systems
  • Systems administration concepts and best practices
  • System/server diagnostic tools and fault identification
  • Operating system command line/prompt (e.g., ipconfig, netstat, dir, nbtstat)
  • System maintenance procedures (cleaning, disk checks, reboots, backups, etc.)
  • (4) Cloud Computing:
  • Cloud computing service models (SaaS, IaaS, PaaS)
  • Cloud security strategy and architecture
What you’ll need to have to join our award‑winning team (Minimum LCAT Requirements):
  • Clearance:
    Must possess and maintain an active Secret Clearance
  • Four (4) years of experience in systems management experience
  • IAT II Certification

This job description is not designed to cover or contain a comprehensive listing of activities, duties, or responsibilities that are required of the employee. Duties, responsibilities and activities may change or new ones may be assigned at any time with or without notice.

Applicants may need to meet eligibility requirements for access to classified information; an active United States Department of Defense security clearance or the ability to obtain one may be required for this role.

As a federal contractor, CSA will abide by the client’s infectious disease protocols.

WE BELIEVE great companies know who they are and what they stand for. CSA’s common purpose and core values were purposefully developed to create a culture focused on unlocking the full potential of our people—so they are inspired to solve our…

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