Job Description

Walk-in Interview – VoIP EngineerAbout startelelogic

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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.

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Our platform brings together Conversational AI, Voice AI, AI Agents, automation, analytics, and human-assisted workflows to simplify customer support, sales, and engagement.

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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.

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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.

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Key Responsibilities

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- Configure, troubleshoot, and maintain FreeSWITCH and Kamailio platforms.
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- Understand and troubleshoot SIP signaling and VoIP call flows.
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- Analyze SIP messages such as INVITE, ACK, BYE, CANCEL, REGISTER, OPTIONS, 200 OK, 4xx, and 5xx responses.
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- Troubleshoot common VoIP issues, including:
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- One-way or no audio
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- Call failures
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- SIP registration issues
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- DTMF problems
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- Codec negotiation issues
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- NAT-related issues
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- Call routing failures
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- Work with SIP trunks, extensions, gateways, DIDs, and VoIP routing.
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- Monitor and troubleshoot production VoIP services.
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- Use tools such as sngrep, tcpdump, Wireshark, netstat/ss, and other Linux utilities for debugging.
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- Work with FreeSWITCH dial plans, XML configurations, and SIP profiles.
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- Assist with Kamailio routing and configuration.
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- Perform SIP trunk testing, call-flow analysis,



and connectivity troubleshooting.
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- Write or modify basic scripts using Python, Lua, Perl, or Bash.
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- Collaborate with senior engineers to implement new VoIP features and telecom integrations.
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- Monitor system performance and help maintain service availability.
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- Document configurations, troubleshooting procedures, and technical changes.
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Required Skills

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- 1+ year of hands-on experience in VoIP/SIP engineering.
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- Basic to intermediate understanding of VoIP and SIP.
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- Hands-on experience with FreeSWITCH and/or Kamailio.
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- Valuable understanding of Linux.
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- Ability to read and troubleshoot SIP traces and call flows.
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- Understanding of TCP/IP, UDP, DNS, NAT, and basic networking concepts.
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- Basic knowledge of RTP and media flow.
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- Basic programming or scripting knowledge in Python, Lua, Perl, Bash, or Golang.
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- Basic knowledge of C/C++ is an advantage.
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- Strong troubleshooting, analytical, and problem-solving skills.
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- Ability to work effectively in a production telecom environment.
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Good to Have

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- Experience with OpenSIPS or other SIP proxy technologies.
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- Knowledge of RTP, SRTP, and media handling.
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- Familiarity with SIP over UDP, TCP, and TLS.
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- Knowledge of codecs such as G.711, G.729, Opus, and GSM.
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- Exposure to REST APIs and telecom integrations.
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- Basic understanding of databases such as MySQL, PostgreSQL, or Redis.
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- Experience with Git and Linux-based development environments.
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- Exposure to Docker, Kubernetes, or cloud-based VoIP deployments is a plus.
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Education

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- B.Tech/B.E. in Computer Science, Electronics, Electronics & Communication, or Telecommunications is required.
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- BCA, MCA, diploma courses, or other non-engineering qualifications will not be considered.
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- Candidates should have a strong academic foundation in computer networks, telecommunications, Linux, and VoIP/SIP technologies.
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- Fresh B.Tech/B.E. graduates with strong VoIP/SIP fundamentals and relevant practical projects may also be considered.
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Walk-in Interview Details

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Date: September 5, 2026, Saturday

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Time: 11:00 AM – 3:00 PM

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Position: VoIP Engineer

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Experience: 1+ Year

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Open Positions: 5

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Employment Type: Full-Time

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Work Mode: On-site

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Interview Venue

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First Floor, NX ONE, T1, 117 & 118

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Greater Noida West, Ghaziabad

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Ithaira, Uttar Pradesh – 201318

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What You Will Work On

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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.

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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.

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Important

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- 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.
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📌 Walk-in Interview - VoIP Engineer (Noida)
🏢 StarTelelogic
📍 Noida