? 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 strong VoIP/SIP fundamentals and relevant practical projects may also be considered.

? Walk-in Interview Details

Date: 29 August 2026

Time: 11:00 AM – 3:00 PM

Position: VoIP Engineer

Experience: 1+ Year

Open Positions: 5

Employment Type: Full-Time

Work Mode: In office

? Interview Venue

First Floor, NX ONE, T1, 117 & 118

Greater Noida West, Ghaziabad

Ithaira, Uttar Pradesh – 201318

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 (Noida)
🏢 StarTelelogic
📍 Noida