Walk-in Interview – VoIP EngineerAbout startelelogic startelelogic is an AI-powered Omnichannel Customer Experience (CX) platform that helps businesses deliver seamless and intelligent interactions across voice, chat, email, WhatsApp, social media, and more . Our platform brings together Conversational AI, Voice AI, AI Agents, automation, analytics, and human-assisted workflows to simplify customer support, sales, and engagement. We are looking for a motivated VoIP Engineer with 1 year of hands-on experience in VoIP and SIP technologies to join our telecom engineering team. The ideal candidate should have practical knowledge of SIP, VoIP call flows, Linux, FreeSWITCH, and/or Kamailio , along with basic programming and scripting skills. The candidate will work on developing, configuring, troubleshooting, and maintaining reliable, carrier-grade VoIP systems. Key Responsibilities Configure, troubleshoot, and maintain FreeSWITCH and Kamailio platforms. Understand and troubleshoot SIP signaling and VoIP call flows . Analyze SIP messages such as INVITE, ACK, BYE, CANCEL, REGISTER, OPTIONS, 200 OK, 4xx, and 5xx responses. Troubleshoot common VoIP issues, including: One-way or no audio Call failures SIP registration issues DTMF problems Codec negotiation issues NAT-related issues Call routing failures Work with SIP trunks, extensions, gateways, DIDs, and VoIP routing . Monitor and troubleshoot production VoIP services. Use tools such as sngrep, tcpdump, Wireshark, netstat/ss , and other Linux utilities for debugging. Work with FreeSWITCH dial plans, XML configurations, and SIP profiles . Assist with Kamailio routing and configuration . Perform SIP trunk testing, call-flow analysis,



and connectivity troubleshooting. Write or modify basic scripts using Python, Lua, Perl, or Bash . Collaborate with senior engineers to implement new VoIP features and telecom integrations. Monitor system performance and help maintain service availability. Document configurations, troubleshooting procedures, and technical changes. Required Skills 1 year of hands-on experience in VoIP/SIP engineering. Basic to intermediate understanding of VoIP and SIP . Hands-on experience with FreeSWITCH and/or Kamailio . Good understanding of Linux . Ability to read and troubleshoot SIP traces and call flows . Understanding of TCP/IP, UDP, DNS, NAT, and basic networking concepts . Basic knowledge of RTP and media flow . Basic programming or scripting knowledge in Python, Lua, Perl, Bash, or Golang . Basic knowledge of C/C++ is an advantage. Strong troubleshooting, analytical, and problem-solving skills. Ability to work effectively in a production telecom environment. Good to Have Experience with OpenSIPS or other SIP proxy technologies. Knowledge of RTP, SRTP, and media handling . Familiarity with SIP over UDP, TCP, and TLS . Knowledge of codecs such as G.711, G.729, Opus, and GSM . Exposure to REST APIs and telecom integrations . Basic understanding of databases such as MySQL, PostgreSQL, or Redis .



Experience with Git and Linux-based development environments . Exposure to Docker, Kubernetes, or cloud-based VoIP deployments is a plus. Education B.Tech/B.E. in Computer Science, Electronics, Electronics & Communication, or Telecommunications is required. BCA, MCA, diploma courses, or other non-engineering qualifications will not be considered. Candidates should have a strong academic foundation in computer networks, telecommunications, Linux, and VoIP/SIP technologies . Fresh B.Tech/B.E. graduates with robust VoIP/SIP fundamentals and relevant practical projects may also be considered. Walk-in Interview Details Date: September 5, 2026, Saturday Time: 11:00 AM – 3:00 PM Position: VoIP Engineer Experience: 1 Year Open Positions: 5 Employment Type: Full time Work Mode: On-site Interview Venue First Floor, NX ONE, T1, 117 & 118 Greater Noida West, Ghaziabad Ithaira, Uttar Pradesh – What You Will Work On As a VoIP Engineer at startelelogic , you will work on real-world telecom and carrier-grade communication systems , including VoIP infrastructure, SIP routing, FreeSWITCH, Kamailio, SIP trunks, carrier connectivity, call routing, troubleshooting, and AI-powered customer experience platforms . This role provides an opportunity to gain hands-on experience across VoIP, CCaaS, CPaaS, AI-powered communications, and cloud communication technologies while working with a growing telecom technology company. ⚠️ Important Please bring an updated copy of your resume/CV and be prepared for a technical discussion/interview focused on VoIP, SIP, Linux, FreeSWITCH, Kamailio, and networking fundamentals .

📌 Walk-in Interview – VoIP Engineer (Uttar Pradesh)
🏢 StarTelelogic
📍 Uttar Pradesh