Senior Network Operation Voip Engineer

Job Description 7+ years of hands-on VoIP engineering experience, with a strong focus on carrier SIP trunking and interoperability. Expert-level knowledge of SIP signaling (INVITE, BYE, REGISTER, re-INVITE, UPDATE, PRACK, REFER, etc.), SDP negotiation, RTP/RTCP, and SIP headers. Proven ability to troubleshoot complex SIP interoperability issues across different carrier platforms and SBCs.Strong experience with Session Border Controllers (SBCs) and SIP proxies (e.g., Ribbon, AudioCodes, Oracle/Acme Packet, OpenSIPS,Kamailio, etc.). Proficiency with diagnostic tools: Wireshark, sngrep, Homer/HEP, SIPp, Empirix, etc. Solid networking knowledge: IP, DNS, subnetting, VLANs, routing protocols. Strong Linux administration skills for VoIP applications and troubleshooting. Excellent written and verbal communication skills. Job Description - Grade Specific Focus on Digital Continuity and Manufacturing. Develops competency in own area of expertise. Shares expertise and provides guidance and support to others. Interprets clients needs. Completes own role independently or with minimum supervision. Identifies problems and relevant issues in straight forward situations and generates solutions. Contributes in teamwork and interacts with customers.