Network & Voice Engineer

Apex Tool Group is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, national origin, religion, age, color, sex, sexual orientation, gender identity, disability, or protected veteran status.

Reporting to the Manager of Network and Telecom Infrastructure, this position will be part of a strong team that works closely with internal colleagues and vendors to maximize network, voice, and unified communications system efficiency, consistency, and availability. This role functions as a Network & Unified Communications Engineer, with a strong emphasis on voice engineering, call routing, and cloud-based communications solutions.

This role is responsible for the design, implementation, and support of both enterprise network infrastructure and voice/unified communications (UC/UCaaS) platforms across a global enterprise environment in Apex, NC. This role will play a key part in supporting and evolving the organization’s voice environment from on-premises systems to modern cloud-based platforms.

• Design, implement, and support enterprise voice and unified communications (UC/UCaaS) platforms across on‑premises and cloud environments.
• Serve as a subject matter expert for voice systems, supporting design decisions, troubleshooting, and platform evolution.
• Configure, troubleshoot, and maintain enterprise network infrastructure, including routers, switches, wireless systems, firewalls, and SD‑WAN technologies across multi‑vendor environments (e.g., Cisco, Aruba, Palo Alto, Velo Cloud).
• Support day‑to‑day network and voice operations, including incident response, ticket resolution, and outage management.
• Design and support enterprise wireless and secure access solutions, including controller‑based and cloud‑managed environments, as well as network access control platforms (e.g., Cisco WLC, Aruba Central, Clear Pass).
• Monitor and resolve network and voice incidents, including proactive performance analysis and operational troubleshooting.
• Manage network and voice infrastructure projects from planning through implementation and maintaining accurate system documentation.
• Administer and support Cisco Unified Communications Manager (CUCM) and related voice applications, including lifecycle management, upgrades, and migration to cloud‑based platforms such as Webex Calling and Ring Central CX.
• Design and maintain dial plans, call routing logic, and number normalization for multi‑site environments.
• Configure and support voice signaling protocols (SIP, H.323, MGCP) and ensure interoperability across systems and providers.
• Troubleshoot voice issues across the full call path, including endpoints, call control, gateways, signaling, and media quality (latency, jitter, packet loss).
• Manage voice connectivity including SIP trunking, PSTN integration, and coordination with telecom carriers.
• Implement and maintain Quality of Service (QoS) policies to support voice and real‑time communications.
• Design and implement secure network infrastructure and controls, including firewalls, VPN, and access management capabilities to protect enterprise systems.

• B.S. or B.A. in a technical field or relevant combination of education and experience (may consider 10 years of relevant experience in lieu of degree).
• 7+ years of experience implementing, administering, and troubleshooting enterprise network and voice infrastructure.
• Strong understanding of network security concepts including firewalls, VPNs, and access control.
• Strong understanding of enterprise networking, including routing, switching, TCP/IP, and dynamic routing protocols (OSPF, EIGRP, BGP).
• Experience designing, supporting, and troubleshooting enterprise voice and unified communications systems (UC/UCaaS) platforms including dial plans, call routing, and protocols such as SIP, H.323, and MGCP.
• Experience with SIP trunking, PSTN connectivity, and telecom carrier integrations.
• Exposure to cloud‑based voice and contact center platforms (e.g., Webex Calling, Ring Central CX) preferred.
• Experience supporting collaboration technologies including…