Hybrid

Network Administrator III

Robert Half

Pittsburgh, PAvia Robert Half

We are looking for an experienced Network Administrator III to support and enhance a complex manufacturing technology environment in New Castle, Pennsylvania. This role is responsible for maintaining reliable infrastructure across multiple locations, with a focus on network performance, systems stability, and secure access to critical business services. The ideal candidate brings advanced technical depth across enterprise platforms and a practical approach to improving uptime, scalability, and operational resilience.

Responsibilities

  • Manage enterprise network and infrastructure operations across multiple sites, ensuring dependable connectivity, performance, and availability.
  • Administer core technologies including Cisco-based networking, servers, virtualization platforms, cloud-connected services, and security tools.
  • Maintain and optimize VMware environments, storage systems, and Microsoft enterprise platforms such as Active Directory and Office 365.
  • Strengthen infrastructure security by configuring firewalls, applying hardening standards, and supporting identity and access management controls.
  • Oversee backup and recovery processes to protect business-critical systems and improve disaster readiness.
  • Troubleshoot escalated infrastructure issues, identify root causes, and implement lasting technical solutions.
  • Support hybrid and cloud integrations that extend enterprise services while maintaining compliance and operational efficiency.
  • Contribute to unified communications administration, including platforms such as Cisco Call Manager, when needed.
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