Fabian Lopez 👋

VoIP / IMS Engineer with extensive experience supporting carrier-grade cores and networks across LATAM. Proficient in incident resolution, SLA compliance, multi-country support, and service delivery management for Tier-1 operators, ensuring reliable network performance. Strong expertise in SIP, RTP, DNS, DHCP and VoLTE architecture; complemented by solid practical knowledge of virtualization, TCP/IP, routing, and switching. Trusted to coordinate escalations, lead O&M transitions, and mentor engineers, contributing to seamless service continuity. Key achievement: Contributed to the first virtualized IMS deployment and support for Movistar Colombia.