Sr. Network Administrator

Long-term contract (12–24 months) with potential for extension. Primarily remote with onsite availability required for data center upgrades, infrastructure projects, and other business needs. The role may transition to a hybrid schedule in 2027.

About The Company

Our client is a well-established nonprofit organization with a highly available enterprise technology environment and a significant on-premise infrastructure footprint. The internal IT team supports business-critical systems across networking, virtualization, servers, storage, security, and disaster recovery. This position will join a collaborative infrastructure team and work closely with Information Security, Desktop Support, and other technology groups on both day-to-day operations and modernization initiatives.

Responsibilities

• Administer and support enterprise Cisco routing, switching, LAN/WAN, wireless, and VPN environments.
• Configure and maintain Cisco Firepower firewalls, access control rules, NAT policies, VPN connectivity, and network security configurations.
• Troubleshoot complex network performance and connectivity issues and perform detailed root cause analysis.
• Maintain VMware virtual infrastructure, including hosts, virtual machines, vCenter, resource allocation, and system health.
• Participate in VMware upgrade, patching, and lifecycle initiatives across enterprise environments.
• Assist with evaluating future virtualization platforms and potential alternatives to existing technologies.
• Support Windows Server environments and related enterprise infrastructure services.
• Maintain and troubleshoot enterprise storage solutions, including SAN environments.
• Lead or participate in disaster recovery planning, testing, documentation, and validation exercises.
• Partner with Information Security teams to address vulnerabilities, remediation activities, and infrastructure security concerns.
• Serve as a senior escalation resource for complex networking and infrastructure issues.
• Support Cisco hardware refreshes, switch replacements, server upgrades, and other lifecycle management initiatives.
• Contribute to backup, recovery, and business continuity processes.
• Participate in infrastructure modernization efforts involving server, storage, networking, virtualization, and security technologies.
• Create and maintain technical documentation, architecture diagrams, procedures, and recovery plans.
• Provide hands-on support during scheduled data center maintenance, upgrades, and infrastructure changes.

Requirements

• 6+ years of hands-on enterprise Cisco networking experience.
• Extensive experience administering Cisco routers and switches.
• Strong hands-on experience with Cisco Firepower firewalls.
• Advanced knowledge of routing, switching, VLANs, VPNs, ACLs, NAT, and network security concepts.
• Recent experience administering VMware environments in an enterprise setting.
• Experience supporting VMware vCenter and ESXi environments, including upgrades, patching, or maintenance.
• Strong Windows Server administration experience.
• Previous involvement with disaster recovery planning, testing, and business continuity initiatives.
• Demonstrated ability to troubleshoot complex network and infrastructure issues.
• Experience supporting primarily on-premise enterprise infrastructure.
• Ability to work independently and take ownership of high-priority infrastructure issues.
• Strong documentation, communication, and collaboration skills.
• Bachelor's degree in Information Technology, Computer Science, or a related field, or equivalent professional experience.

Preferred Qualifications

• Experience with HP or HPE SAN/storage technologies.
• Knowledge of Windows Server 2016, 2019, and 2022.
• Familiarity with Microsoft Exchange and Microsoft 365.
• Exposure to Entra ID and Azure environments.
• Experience with enterprise patch management solutions.
• CCNA or CCNP certification.
• VMware certification.
• Experience supporting infrastructure within regulated or compliance-driven organizations.
• Background working within professional services, IT consulting, or technology service provider environments.
• Experience supporting large on-premise server and data center environments.

Benefits

• Medical, dental, and vision coverage.
• 401(k) retirement plan.

Pay

$45-55/hr W2

Perks

• Long-term contract opportunity with potential extension.
• Opportunity to take ownership of a mature Cisco enterprise environment.
• Hands-on involvement with Cisco Firepower, routing, switching, VMware, Windows Server, storage, and disaster recovery.
• Participate in major VMware upgrades and virtualization strategy initiatives.
• Exposure to infrastructure modernization and data center lifecycle projects.
• Work across networking, virtualization, server, security, and storage technologies.
• Join a collaborative internal IT organization where senior infrastructure expertise will have immediate impact.
• Primarily remote schedule while remaining involved in meaningful onsite infrastructure projects.