Network Systems Admin

Job Title: Network & Infrastructure Systems Administrator

Role Overview
We are seeking a versatile Network & Infrastructure Systems Administrator to support the daily operations and long-term stability of our regional enterprise network. In this role, you will work alongside senior IT leadership to design, implement, and maintain a robust infrastructure spanning LAN/WAN, WiFi, and Data Center environments. You will be a key contributor to maintaining secure, high-uptime communications across all business units, handling everything from hardware hardening and patches to voice service integrations and virtualization support.

Key Responsibilities
• Infrastructure Oversight: Assist in the design and ongoing maintenance of LAN, WAN, and WiFi systems. Oversee the daily operations of data center environments to ensure optimal performance and security.
• Network & Voice Services: Administer and troubleshoot voice protocols (SIP, H.323), VoIP systems, and integrated communication platforms. Manage PBX hardware and remote access solutions to ensure seamless connectivity.
• Security & Compliance: Assist with operating system hardening and the deployment of security patches for all network components. Help ensure site-wide compliance with internal security policies and industry regulatory standards.
• Technical Operations: Serve as a primary point of contact for troubleshooting network and storage equipment issues. Participate in an on-call rotation to support after-hours maintenance and urgent infrastructure interventions.
• Systems Administration: Support virtualization, Active Directory management, and enterprise backup/storage solutions to ensure data integrity and system availability.
• Project Support: Contribute to the planning and execution of capacity upgrades and infrastructure expansions. Create and maintain detailed topology diagrams and technical documentation for all system changes.
• Vendor Coordination: Assist in managing vendor relationships and service contracts to ensure technical support aligns with evolving business requirements.

Qualifications & Requirements
• Experience: Minimum of 3 years of relevant experience in network or systems administration.
• Networking Mastery:
• High proficiency in core protocols: TCP/IP, DNS, DHCP.
• Hands-on experience with switches, routers, and Network Access Control (NAC).
• Systems & Voice Expertise:
• Skilled in Active Directory, Virtualization, and Compute/Storage/Backup environments.
• Experience with VoIP, SIP, and enterprise-grade voice services.
• Operational Skills:
• Ability to implement and troubleshoot complex server and network infrastructure.
• Competency in creating professional network topology diagrams and technical runbooks.
• Attributes: Strong collaboration skills with the ability to present technical topics to both IT and business stakeholders; commitment to safe work practices and safety awareness. Equal Opportunity Employer / Disabled / Protected Veterans

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The pay transparency policy is available here:

For temporary assignments lasting 13 weeks or longer, AllSTEM Connections is pleased to offer major medical, dental, vision, 401k and any statutory sick pay where required.

We are committed to working with and providing reasonable accommodations to individuals with disabilities. If you need a reasonable accommodation for any part of the employment process, please contact your staffing representative who will reach out to our HR team.

AllSTEM Connections participates in the E-Verify program in certain locations as required by law. Learn more about the E-Verify program.

We also consider for employment qualified applicants regardless of criminal histories, consistent with legal requirements, including, if applicable, the City of Los Angeles' Fair Chance Initiative for Hiring Ordinance. Pursuant to applicable state and municipal Fair Chance Laws and Ordinances, we will consider for employment-qualified applicants with arrest and conviction records, including, if applicable, the San Francisco Fair Chance Ordinance. For Los Angeles, CA applicants: Qualified applications with arrest or conviction records will be considered for employment in accordance with the Los Angeles County Fair Chance Ordinance for Employers and the California Fair Chance Act.

Additional Skills

(none specified)


AllSTEM Representative Contact Info

Account Executive:


Nichols


Branch Phone:


View phone number on click.appcast.io


Location:


Ontario, CA