
Alaa Hesham
VoIP Infrastructure Engineer Asterisk Vicidial Linux SIP
Habilidades

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Experiencia laboral
Self Employed
Trabajador autónomo • 7 yrs 6 mos
Founder & VoIP Infrastructure Lead | NajmX LLC
Dec 2022 - Present • 3 yrs 6 mos
Led VoIP infrastructure operations for multi-branch contact center environments. Managed Asterisk, Vicidial, SIP trunking, and call routing systems in production. Administered Linux servers (RHEL / Ubuntu) and ensured system reliability and performance. Worked on VoIP optimization, call quality improvements, and STIR/SHAKEN call authentication implementation for production environments.
Co-Founder & Technical Lead | In-Call Outsourcing LLC
Dec 2018 - Dec 2022 • 4 yrs
Co-founded and led technical operations for a 150+ agent, multi-site contact center (2 locations). Designed and maintained VoIP infrastructure including SIP routing, PBX systems, and centralized call gateway architecture. Managed Linux servers and Active Directory services to ensure system stability and uptime. Supported network infrastructure (core, distribution, access layers) and ensured operational continuity across sites.