Security Network Administrator

JENSEN INFRASTRUCTURE • Reno, NV

80d

About The Position

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.

Requirements

• 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.

Nice To Haves

• Familiarity with OT/ICS networks.
• Experience with SIEM platforms (Sentinel, Splunk).
• Certifications such as Security+, Network+, or CCNA.

Responsibilities

• 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.

Benefits

• Medical insurance
• Dental insurance
• Vision insurance
• Life insurance
• Disability insurance
• PTO
• 401k
• Eligibility for annual incentive program

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Education Level: Bachelor's degree
• Number of Employees: 501-1,000 employees