David Mendoza-Chavez

• Analyzed telecommunications systems to improve communication efficiency across the district.
• Developed and implemented VoIP network solutions on both legacy and new voice system platforms.
• Configured complex voice traffic routing including SIP, VPN, and multicast distribution.
• Collaborated with IT teams to troubleshoot connectivity issues and maintain system performance.

Deployed SME VoIP systems—including SIP, paging, and video endpoints—and optimized telephony platforms to improve voice traffic efficiency.

Resolved complex telecommunications and media streaming disruptions in collaboration with IP voice service providers.

Trained the end user on how to use features such as conference call setup, automatic call distribution, and park and page.

Executed routing and switching enhancements to optimize performance of large-scale enterprise networks on Cisco and Juniper platforms.

Professional level knowledge of routing protocols including OSPF, EIGRP, BGP, as well as interaction with core routing/ traffic handling such as ISIS and MPLS.

Accessed various network devices/ systems for trouble isolation in all layers of the OSI model with heavy focus in layers 1 through 4.

Provided proactive network monitoring to identify potential issues; take corrective action as required.

Installed, repaired, and maintained voice, broadband, and fiber optic network services for residential and business customers.

Deployed and configured modems, routers, switches, and voice/VoIP equipment.

Traced and diagnosed connectivity failures using specialized testing devices (e.g., butt sets, tone generators, continuity testers). Performed field repairs on damaged lines and replaced aging or malfunctioning network infrastructure.