At Sipfront, I designed and troubleshot SIP-based communications and automated voice-testing systems across signaling, media, codecs, and network behavior. I built and maintained test environments using SIPp, Baresip, Asterisk, Kamailio, and RTPengine.
I investigated difficult call and media failures by following captures, logs, and metrics through endpoints, proxies, media engines, PBXs, and container and network layers. I also extended Baresip and RTPengine repositories and backend components, and contributed to an in-house Voice AI agent for automated testing.
At Blueface, Comcast, I managed and optimized telephony infrastructure and built automated device configuration and voice-testing tools, including a Python SIP/RTP/SDP stack. I also led, mentored, and hired the L3/NOC team and drove root-cause investigations across Operations and Development.
Earlier, at Imagine, I designed and deployed call-center and carrier-switch infrastructure, and developed a CloudPBX platform. At VeleviSA, I rolled out a reseller MVNO service and developed a call-cost analysis tool; I also worked on ISP infrastructure, live streaming, and Video on Demand.
