Senior Network Administrator | Information Technology

Overview

At Corgan we are passionate about great design but the best thing we build is each other. Here, you’ll find camaraderie and collaboration as abundantly as curiosity and creativity. Corgan is a welcoming and supportive environment that provides significant career advantages. You’ll find room to grow, freedom to explore — and the safety to fail. Thank you for your interest in joining our curious, passionate, hardworking team.

Corgan is actively recruiting a dynamic Senior Network Administrator to join the firm as part of our Shared Services Information Technology team. Tackle these responsibilities alongside a team of creative, highly motivated individuals who are passionate about their work and ready to collaborate to achieve outstanding results. Our ideal team member is passionate and progressively seeking more responsibilities to expand their expertise.

• Participate in an on‑call rotation, after‑hours maintenance, and incident response to ensure continuous network and systems availability.
• Design, implement, and maintain the organization's LAN, WAN, SD‑WAN, and wireless network infrastructure, optimizing for performance and reliability.
• Configure and manage Cisco switches, Palo Alto next‑generation firewalls (or equivalent), and Meraki (Wireless) platforms.
• Implement and troubleshoot dynamic routing protocols (OSPF, BGP, EIGRP) to ensure efficient and resilient network traffic flow.
• Continuously monitor network performance, identify and resolve bottlenecks, and implement proactive measures to maintain network stability.
• Develop and maintain detailed network documentation, including diagrams, configurations, and operational procedures.
• Implement and enforce network security policies and procedures to protect against unauthorized access and cyber threats.
• Monitor network security logs and events, analyze security incidents, and execute appropriate response protocols.
• Champion innovation by staying current with technological advancements and translating them into tangible process improvements that maximize efficiency.
• Assist with incident, change, and capacity management processes related to network and systems infrastructure.
• Manage the full lifecycle of operating systems and application software for networking and systems infrastructure, including installation, maintenance, patching, upgrades, and troubleshooting, to ensure optimal performance and security.
• Perform daily system monitoring, verify system integrity and availability, review system and application logs, and ensure completion of scheduled jobs, including backups.
• Serve as a senior escalation point, providing expert‑level support for complex systems and networking issues.
• Travel to other company offices may be required for specific project or operational needs, estimated at less than 5% annually.

• Bachelor's degree in computer science, MIS or equivalent training or work experience
• Minimum of 7 years of hands‑on experience in network design, implementation, maintenance, and comprehensive documentation.
• Ability to be onsite 5 days per week in Dallas, TX.
• Proficiency in LAN, WAN, SD‑WAN, and wireless network administration, with expertise in Cisco switches, Palo Alto firewalls (or equivalent next‑generation firewalls), and Meraki (MS, MR, and MX platforms).
• Deep understanding of routing protocols, including OSPF, BGP, and EIGRP.
• Solid understanding of network security principles and practices.
• Relevant industry certifications such as CCNA, CCNP, or equivalent cloud networking certifications are highly valued.
• Strong scripting and automation skills using Power Shell, Python, or other relevant languages.
• Experience with Office 365 Administration, Entra, Azure, SCCM, AWS, SQL administration, VMware infrastructure, Microsoft Windows Server, preferred.
• Experience with web server administration (IIS, Apache, Tomcat) is beneficial.
• Excellent interpersonal, organizational and facilitation skills.
• Possess strong problem‑solving, time management, and project management skills.
• Ability to communicate effectively with all levels of business and technical personnel.

• Work at a computer for extended periods.
• Move…