Sr. VoIP and Network Engineer Job at Insight Global, Cornelius, NC

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  • Insight Global
  • Cornelius, NC

Job Description

Insight Global is hiring a full-time Sr. Voip and Network ENgineer for a client in Cornelius, NC. We are seeking a highly capable engineer to own and support a distributed VoIP platform built on OpenSIPS, FreeSWITCH, and FusionPBX, along with the underlying network infrastructure.
This role requires someone who can troubleshoot issues end-to-end - across SIP signaling, media (RTP), and network layers - not just follow runbooks.

Day to Day Operations Include:
VoIP / SIP Platform
• Administer and optimize OpenSIPS (dispatcher, routing, health checks, clustering)
• Manage FreeSWITCH and FusionPBX environments (dialplans, gateways, registrations)
• Troubleshoot SIP and RTP issues (one-way audio, call failures, NAT issues)
• Analyze call flows using tools like Wireshark, tcpdump, or sngrep
Networking
• Configure and troubleshoot switches, routers, firewalls, and SD-WAN appliances
• Work with VLANs, routing, NAT, ACLs, and QoS
• Diagnose packet-level issues impacting SIP/RTP traffic
• Ensure reliable connectivity across multi-site environments
Systems
• Linux administration (Debian/Ubuntu)
• Manage iptables/firewall rules and persistence
• Work with MySQL-backed services
• Support high availability and clustered systems

We are a company committed to creating diverse and inclusive environments where people can bring their full, authentic selves to work every day. We are an equal opportunity/affirmative action employer that believes everyone matters. Qualified candidates will receive consideration for employment regardless of their race, color, ethnicity, religion, sex (including pregnancy), sexual orientation, gender identity and expression, marital status, national origin, ancestry, genetic factors, age, disability, protected veteran status, military or uniformed service member status, or any other status or characteristic protected by applicable laws, regulations, and ordinances. If you need assistance and/or a reasonable accommodation due to a disability during the application or recruiting process, please send a request to HR@insightglobal.com.To learn more about how we collect, keep, and process your private information, please review Insight Global's Workforce Privacy Policy:


Required Skills & Experience
• Strong hands-on experience with SIP and VoIP systems
• Experience with OpenSIPS or Kamailio
• Experience with FreeSWITCH and/or FusionPBX
• Solid networking background (routing, switching, firewalls)
• Ability to troubleshoot using packet captures and SIP traces


Nice to Have Skills & Experience
• Experience with OpenSIPS clustering and replication
• Experience with SBCs or carrier integrations
• Familiarity with SIP reputation, call analytics, or telecom environments


Benefit packages for this role will start on the 1st day of employment and include medical, dental, and vision insurance, as well as HSA, FSA, and DCFSA account options, and 401k retirement account access with employer matching. Employees in this role are also entitled to paid sick leave and/or other paid time off as provided by applicable law.

Job Tags

Full time

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