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Senior Telecom / UCaaS Engineer

3B Staffing LLC

Senior Telecom / UCaaS Engineer


On-site (New Jersey or Boston - 4 days/week)
12+ Months Contract (Extension possible)

Interview Process: 2 Rounds (1st Remote, 2nd On-site)
GC, USC

Senior Telecom/UCaaS Engineer with expertise in Avaya, SIP/PSTN, IVR/call flows, CCaaS (Five9/NICE/Verint), UCaaS (Teams/Zoom Phone), SIP trunking, networking (QoS/VLAN), troubleshooting tools (Wireshark/SolarWinds), and cloud voice migrations.



Required Qualifications

  • 5+ years of experience in Telecom, Voice Engineering, or UC/CC platforms
  • Strong experience with Avaya (Communication Manager, Aura, CMS)
  • Hands-on experience with CCaaS platforms (Five9, NICE, Verint, etc.)
  • Experience with UCaaS platforms (Microsoft Teams Phone, Zoom Phone)
  • Strong understanding of SIP, PSTN, IVR, and call routing
  • Experience with SIP trunking, number porting, and carrier management
  • Networking fundamentals (QoS, VLANs, RTP, DNS, DHCP)
  • Experience with troubleshooting tools (Wireshark, SolarWinds)
  • Strong communication and stakeholder management skills
Preferred Qualifications

  • Experience with cloud migration (on-prem → UCaaS/CCaaS)
  • Knowledge of APIs and integration frameworks
  • Experience in large enterprise environments
Vacancy posted 4 days ago
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