Voip Engineer (Free-switch)

Job Description

?? Hiring: VoIP Engineer (FreeSWITCH Specialist) ?? Location: Ahmedabad ?? Company: iGuru Software Services Pvt. Ltd. ?? Employment Type: Full-time About the Role We are seeking a highly skilled and motivated VoIP Engineer with deep expertise in the FreeSWITCH open-source communication platform . In this role, you will design, develop, deploy, and maintain our Voice over IP (VoIP) infrastructure. You?ll play a key role in ensuring the high availability, scalability, and performance of our telephony systems, building custom call flows , and integrating third-party APIs and services . Key Responsibilities Design, implement, and manage VoIP solutions using FreeSWITCH , ensuring reliability, availability, and security. Configure and optimize dial plans, call queues, IVRs , and call-handling logic. Troubleshoot and resolve complex VoIP issues (e.g., call quality, routing, signaling) using Wireshark, sngrep, tcpdump , etc. Develop custom modules and applications in Lua, Python, C/C++, or JavaScript . Integrate FreeSWITCH with CRMs, databases (MySQL/PostgreSQL), and RESTful APIs . Monitor and maintain system performance with tools like Prometheus, Grafana, and syslog . Implement security best practices ?firewall configuration, TLS encryption, and anti-fraud measures. Collaborate with software developers, network engineers, and support teams to deliver robust communication solutions. Maintain detailed documentation for configurations, procedures, and troubleshooting. Stay current with VoIP and real-time communication trends and technologies. Required Qualifications & Skills Bachelor?s degree in Computer Science, IT, Telecommunications , or related field (or equivalent experience). Proven experience as a VoIP Engineer / Telecommunications Engineer . Deep expertise in FreeSWITCH , including XML/Lua dial plans and module configuration. Strong knowledge of SIP, RTP, WebRTC protocols. Proficiency in Linux system administration (Debian/Ubuntu/CentOS). Experience with Lua, Python, or Perl for call flow logic and automation. Solid understanding of TCP/IP, UDP, DNS, NAT traversal, QoS . Proficiency with Wireshark, sngrep, tcpdump for troubleshooting. Familiarity with MySQL/PostgreSQL integration. Strong analytical, problem-solving, and communication skills. Preferred Skills (Nice to Have) Experience deploying FreeSWITCH in cloud environments (AWS, Azure, GCP). Background in call center or service provider settings. Knowledge of VoIP security frameworks such as STIR/SHAKEN . Experience with automated testing for VoIP systems (e.g., SIPp). ? Why Join iGuru At iGuru, you?ll work in a collaborative, growth-oriented environment where innovation is encouraged, and technical excellence is valued. You?ll have the opportunity to build high-performance communication systems that power next-generation business solutions.