What are the responsibilities and job description for the Security Network Administrator position at JENSEN INFRASTRUCTURE?
WHAT YOU’LL BE DOING
Join a team that keeps critical infrastructure running strong. As a Security & Network Administrator at Jensen Infrastructure, you’ll take ownership of the systems that power our operations—balancing hands-on network administration with cybersecurity expertise. You’ll manage firewalls, VPNs, and connectivity across multiple sites, safeguard company data, and help strengthen our overall security posture.
This role is ideal for a proactive IT professional who loves solving complex problems, thrives in a fast-moving environment, and wants to make an immediate impact while continuing to grow technically.
A highlight of your day-to-day will include:
- Maintaining and securing network infrastructure, including firewalls, switches, routers, and VPNs.
- Monitoring system health, applying patches, and implementing security controls across servers and endpoints.
- Investigating, documenting, and resolving security incidents with a focus on continuous improvement.
- Managing user access, MFA, and conditional access policies within Microsoft Entra ID (Azure AD).
- Supporting and optimizing LAN/WAN/Wi-Fi performance across multiple locations.
- Participating in disaster recovery testing, backup validation, and infrastructure upgrades.
- Leading the company’s IT Security Awareness Program.
WHO WE ARE LOOKING FOR
- Bachelor’s degree in IT, Computer Science, or equivalent experience.
- 3–5 years in network and/or security administration, ideally in a multi-site environment.
- Strong knowledge of LAN/WAN, VPN, VLANs, DNS, DHCP, and wireless networking.
- Experience configuring and securing Microsoft Entra ID, Azure AD, and Microsoft 365.
- Proven troubleshooting, analytical, and communication skills.
- Preferred: familiarity with OT/ICS networks, SIEM platforms (Sentinel, Splunk), and certifications such as Security , Network , or CCNA.
ALL ABOUT JENSEN INFRASTRUCTURE
Like you, our founder, Don Jensen was looking for a way to support his family, so he started his Company in 1968. Since its founding, we’ve supported communities across Nevada, California, Arizona, Washington, and Hawaii.
Jensen i likely impacts your daily life. We build culverts to drain water from your neighborhoods, underground utility boxes to hold cables, and manholes to allow workers access to the sewers deep below the roads we drive on. And that’s just a small sample of what we do at Jensen daily.
When you work at one of Jensen’s many locations, you will enjoy the close relationships and camaraderie of a small company while being part of a larger, well-established, growing company.
We are committed to ensuring employment practices that promote equal opportunities. Please let us know if you require any reasonable accommodations during your interview.
Additional Compensation and Benefits: Jensen Infrastructure offers various competitive benefits, including medical, dental, vision, life insurance, disability insurance, PTO, and 401k. The successful candidate may also be eligible to participate in Jensen’s annual incentive program, subject to the rules governing such programs. (Incentive awards, if any, will depend on various factors, including, without limitation, individual and company performance.)