Network Administrator

San Gabriel/Pomona Regional Center; Pomona (CA); On-site; USD 90,000 - 120,000; Full time

Job summary

San Gabriel/Pomona Regional Center (SG/PRC) is a private, non-profit agency contracted with the State of California to support individuals with developmental disabilities. The Network Administrator will manage, secure, and optimize our network infrastructure to ensure reliable operations across multiple sites.

Under the Information Technology Manager, you will design and maintain LAN/WAN, configure routers, firewalls, VPNs, monitor performance, and enforce security standards, with emphasis on

Qualifications

• Bachelor's degree or equivalent with relevant certifications.
• 5+ years of network administration experience.
• Strong knowledge of TCP/IP, DNS, DHCP, and SNMP.

Responsibilities

• Design, implement, and maintain LANs/WANs and wireless networks.
• Configure routers, switches, firewalls, VPNs; monitor performance.
• Maintain network documentation and procedures.
• Perform backups and recovery testing for business continuity.
• Enforce security policies; manage security appliances.
• Collaborate with IT team and vendors; provide end-user training.
• Support AD, DNS, DHCP, email security, and endpoint protection.

Skills

Network administration

TCP/IP/DNS/DHCP

Security policies

Windows/Linux

Documentation

Education

Bachelor's degree in Computer Science / Information Technology or related field

5+ years of network administration experience

Tools

Azure

AWS

Active Directory

DNS/DHCP servers

VPNs

Job description

The Organization

San Gabriel/Pomona Regional Center (SG/PRC) is a private, non-profit agency that is contracted with the State of California, Department of Developmental Services (DDS) to provide services and supports to individuals with intellectual and developmental disabilities. We proudly serve 30 cities across the Foothill, Pomona, and El Monte Health District within Los Angeles County. Our services span the full lifespan from infants and toddlers, school-age children, and transition-age youth to adults and aging adults. At SG/PRC, our work is guided by compassion, collaboration, integrity, and a shared commitment to making a meaningful difference in the lives of the individuals and families we serve.

The Position

Under the direction of the Information Technology Manager, the Network Administrator is responsible for managing, maintaining, and securing the organization's network infrastructure and systems. This role ensures the availability, performance, and security of all network and security systems to support business operations effectively.

Essential Job Functions

• Design, implement, and maintain local area networks (LANs), wide area networks (WANs), and wireless networks.


• Configure, manage, and support routers, switches, firewalls, VPNs, and other network infrastructure.


• Monitor network performance, troubleshoot issues, and optimize configurations for reliability and efficiency.


• Maintain network documentation, including diagrams, device configurations, procedures, and key processes.


• Perform regular backups of network configurations and conduct recovery testing to support business continuity.


• Implement and enforce security policies, procedures, and standards to safeguard networks and systems.


• Configure, monitor, and manage firewalls, intrusion detection and prevention systems (IDS/IPS), and other security appliances.


• Perform vulnerability assessments and penetration testing to identify security weaknesses and recommend remediation measures.


• Respond to security incidents, conduct investigations, and implement solutions to mitigate risks.


• Apply patches, updates, and security fixes to systems, applications, and hardware.


• Manage user access controls, including VPN permissions and remote access, in accordance with organizational security policies.


• Assist in managing servers, virtual machines, and storage systems; maintain Active Directory, DNS, DHCP, and other network services; and support email security, antivirus, and endpoint protection solutions.


• Support compliance with applicable industry regulations, standards, and organizational policies, including HIPAA, ISO, and PCI DSS, as applicable.


• Maintain network and security logs, generate performance and incident reports, conduct audits and risk assessments, and recommend improvements.


• Collaborate with internal IT team members, vendors, and service providers; provide occasional technical support and training to end users as needed; contribute to management-level reporting; and perform other related duties as assigned.

Requirements

Employment Standards

• Bachelor's degree in Computer Science, Information Technology, or a related field, with relevant certifications, or a high school diploma or equivalent with at least five years of network administration experience, relevant coursework, and certifications.


• 3-5 years of experience in network administration or a related field.


• Strong knowledge of network protocols, including TCP/IP, DNS, DHCP, and SNMP.


• Experience configuring and supporting routers, switches, firewalls, and VPNs.


• Experience with network monitoring and troubleshooting tools.


• Knowledge of security protocols and best practices, including firewalls, intrusion detection systems, and VPNs.


• Familiarity with Microsoft Azure, Microsoft Entra, Azure DevOps, and related technologies.


• Excellent communication, teamwork, and organizational skills, with the ability to work independently and manage multiple priorities in a fast-paced environment.

Certifications (Preferred)

• CCNA or CCNP (Cisco Certified Network Associate/ Professional)


• CompTIA Security+ or Network+


• CISSP (Certified Information Systems Security Professional)


• CEH (Certified Ethical Hacker)

Other Essential Requirements

• Valid driver's license with an acceptable driving record.


• Employees using a personal vehicle for agency business must maintain the required minimum automobile liability insurance.

Knowledge and Abilities

• Proficiency in configuring and managing network switches, routers, and firewalls.


• Familiarity with VPN technologies and remote access solutions.


• Knowledge of security frameworks and best practices, including NIST and CIS.


• Experience with SIEM tools, intrusion detection and prevention systems (IDS/IPS), and vulnerability scanning tools.


• Proficiency in Windows and Linux operating systems.


• Hands-on experience with cloud platforms, such as Microsoft Azure and AWS, and hybrid environments.

Physical Demands & Work Environment

• Work primarily in an office environment, with occasional work in server rooms, data centers, or other locations containing network equipment.


• Ability to travel between work locations as needed to install, inspect, maintain, or troubleshoot network equipment.


• Occasional walking, standing, bending, or reaching when installing or servicing network hardware.


• Ability to sit for extended periods and operate a computer for network monitoring, troubleshooting, documentation, and reporting.


• Clear verbal communication in person, by phone, and through virtual meetings.


• Occasional lifting, pushing, or pulling of computer equipment and networking devices weighing up to 25 pounds.


• Adequate visual acuity to read documentation, monitor computer screens, and review detailed network configurations and system alerts.


• Work in a typical office setting with standard lighting, temperature, and moderate noise levels, with occasional exposure to equipment noise or varying temperatures in server rooms.


• Employees are expected to follow safe and ergonomic work practices.

Reasonable accommodation may be provided to enable individuals with disabilities to perform essential job functions.