Sr. Network Administrator

About the role

We are looking for an experienced Sr. Network Administrator to lead the design, delivery, and ongoing support of a resilient enterprise network environment. This position plays a key role in maintaining secure, high-performing connectivity across sites while strengthening infrastructure reliability and operational readiness.

Responsibilities

• Architect, deploy, and administer enterprise network infrastructure to support availability, performance, and future growth across multiple locations.
• Configure and maintain core networking platforms, including routers, switches, wireless solutions, firewalls, and load balancing technologies.
• Track network health through proactive monitoring, analyze trends, and take corrective action to prevent service disruption.
• Investigate and resolve advanced connectivity, latency, and security issues using structured troubleshooting methods.
• Work with infrastructure, cloud, and application teams to deliver network support for projects, upgrades, and operational initiatives.
• Apply and enforce network security standards, including firewall policy management, segmentation, and access controls.
• Contribute to disaster recovery and business continuity planning by validating network resilience and recovery procedures.
• Maintain clear technical documentation covering network topology, configurations, standards, and support processes.
• Evaluate and support enterprise technologies such as Cisco Nexus, Fortinet FortiGate, F5 load balancers, cloud networking in Azure, and emerging platforms under consideration.
• Assist with network automation efforts and operational efficiency improvements using tools such as Ansible when applicable.

Requirements

• Proven experience administering enterprise networks with strong hands-on knowledge of Cisco routing and switching environments.
• Expertise with Cisco Nexus platforms and broad understanding of wireless networking technologies.
• Practical experience managing Fortinet FortiGate firewalls and implementing secure network policies.
• Knowledge of F5 load balancing solutions, including advanced application delivery and security features.
• Solid understanding of dynamic routing protocols and best practices for scalable network design.
• Experience supporting cloud networking components within Microsoft Azure environments; exposure to additional cloud platforms is beneficial.
• Strong analytical and problem-solving skills with the ability to diagnose and resolve complex network issues.
• Excellent communication and documentation skills, with the ability to collaborate effectively across technical teams.

Benefits

• Medical, vision, dental, and life and disability insurance.
• Eligibility to enroll in the company 401(k) plan for contract/temporary professionals.

All applicants applying for U.S. job openings must be legally authorized to work in the United States.