SIP Developer

Company Profile Quantiphi is an award winning Data Science and Machine Learning Software and Services Company focused on helping organizations translate the big promise of Machine Learning technologies into quantifiable business impact. We were founded on the belief that machine learning and artificial intelligence are transformative technologies that will create the next quantum gain in customer experience and unit economics of businesses. We are one of the five global launch partners for Google in Machine Learning and one of the three global launch partners for Google Cloud Contact Center AI solution. Our signature approach combines ground-breaking machine-learning research with disciplined cloud and data-engineering practices to create breakthrough impact at unprecedented speed. We believe in “Solving What Matters” Company Highlights: • Quantiphi has seen 2.5x growth YoY since its inception in 2013. • Headquartered in Boston, with 4000+ Quantiphi professionals across the globe • Recognized by Everest Group as “Specialist Leader” and “Star Performer” in Analytics and AI Services. • Winner of “Industry Partner of the Year” and “AI/ML partner of the Year” from AWS regional and global team for 2022. • Quantiphi is recognized by Gartner as a leading Vendor for US Healthcare Payers 2022 and for Healthcare Data, Analytics and AI 2022, in the AI strategy category. • Recognized under India's 40 Best Workplaces in Health and Wellness 2022. • Quantiphi has been certified as a Great Place to Work for the third year in a row- 2021, 2022, 2023. Job Description: Responsibilities: • Design and implement telephony integrations using SIP and SIPREC protocols • Configure and manage media servers (FreeSWITCH, Asterisk, RTP Proxy) • Work with SIP proxy servers (Kamailio, OpenSIPS) for call routing and signaling • Build and maintain call recording solutions using SIPREC • Handle WebRTC, RTP streams, and VoIP media processing • Develop automation scripts and services in Node.js, Lua, or Python • Integrate with relational databases (Postgres, MySQL) • Deploy and manage solutions in cloud-native environments (GCP preferred, AWS, Azure) • Ensure high availability (HA) and scalability using HAProxy or load balancers • Collaborate with cross-functional teams for deployment, monitoring, and troubleshooting Required Skills: • Proven practical experience with SIPREC for VoIP call recording • Expertise with FreeSWITCH / Asterisk / RTP Proxy (media servers) • Expertise with Kamailio / OpenSIPS (SIP proxy servers) • Strong knowledge of WebRTC, RTP streams, VoIP signaling and media handling • Experience with Node.js, Lua, or Python for telephony-related development • Database experience with Postgres / MySQL • Hands-on deployment experience in GCP, AWS, or Azure Nice to have skills: • Experience with HAProxy, load balancing, and clustering for high-availability setups