Senior System Administrator

16 hours ago

Hyderabad, Telangana, India Telebu Full time ₹ 15,00,000 - ₹ 25,00,000 per year

As a Senior System Administrator (VoIP) / Telephony Engineer at Telebu, you will be a valuable member of the Communications engineering team. Your main role will involve the development, implementation, and support of IP Telephony technologies such as IVR platforms, Conferencing solutions, Voice engineering integration, VoIP, SIP, WebRTC, and PSTN gateways. Key Responsibilities: - Develop and implement telephony networks with various components like SIP proxies, registrar, media-servers, and billing systems. - Deploy highly scalable, robust, high-availability (HA), and fault-tolerant SIP VOIP/PRI trunking solutions. - Administer SIP and Media Servers, conduct network/protocol level debugging and testing, and troubleshoot and resolve complex problems. - Provide IP Telephony and VoIP Subject Matter Expertise for the company and its managed service providers. - Manage 3rd party telecom carriers and providers. Qualifications Required: - Minimum 5 years of hands-on industry experience in telecommunications. - Strong conceptual knowledge and experience with telephony protocols like SIP, SDP, RTP, SRTP, WebRTC, and audio/video codecs. - In-depth working experience with Kamailio, Freeswitch, SIP stack (Sofia, reSIProcate, PJSIP, etc.), ICE Framework (STUN/TURN), and Linux. - Hands-on experience in writing production quality code using scripting languages like Python, Go, Erlang, etc. - Experience with VoIP testing tools like Wireshark, VoIPMonitor, SIPp, SIPCapture, Homer, etc. Additional Company Details (if present): The company values additional skills such as working knowledge of NoSQL databases like MongoDB, Redis, Cassandra, a passion for VoIP Protocol standards & related RFCs, and experience with virtualization/container-related technologies like Xen, VMware vSphere/ESXi, Docker, Kubernetes.,

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