Muhammad Hamas Usmani

Senior Telephony Engineer: Full-lifecycle telephony solutions (systems, tools, documentation). Team project participation. Requires customer focus, business/team goal understanding, proactive communication, strong coding/design skills, development/debugging proficiency, independent design, dependency identification, product knowledge, code review/sign-off. Writes specs, executes roadmaps. Designs/implements solutions. Manages Kong gateway (R&D, upgrades, vulnerability remediation)

As Telephony Engineer, I built resilient processes (design to implementation): lab/system configuration, CTI integration, test tools, documentation. Contributed to team projects, prioritized tasks, participated in core processes. Met commitments, took ownership, delivered on time. Used debugging tools, navigated codebases, debugged code. Well-documented, tested code minimized errors. Understood/adjusted designs, independently designed/completed tasks, solving known problems.

Led 24/7 operations for VoIP (Elastix/Vicidial), private cloud (ESXi), and network infrastructure (Cisco/Ubiquiti). Managed Linux servers, databases (PostgreSQL/MongoDB), and hosted apps with PRTG monitoring. Oversaw VoIP campaigns (Asterisk/Vonage/8x8), resolving voice quality and CRM issues. Supervised 5-member team, established escalation protocols, and collaborated with developers on deployments/QA

Designed Azure-based Docker/Kubernetes labs to showcase containerization, automating infrastructure tasks. Managed Linux servers (Nagios/PRTG), ESXi VMs, and VoIP systems (Elastix/Vicidial) for high availability. Configured Asterisk, Grandstream IP phones, and ensured business continuity. Supported Cisco/Maipu network devices, vCenter, and Microsoft AD.

Managed nationwide/international VoIP POPs on Juniper, Cisco, and CentOS 6, ensuring 24/7 uptime. Configured Asterisk 1.4 (SIP/SS7) for resilient call routing. Monitored QoS via NMS, analyzing ASR, TG utilization, and call metrics. Troubleshot SS7/SIP issues, traced calls, and liaised with global partners. Built HA systems, managed BGP, and aligned technical solutions with business needs.

Delivered on-site technical support for corporate clients, resolving internet issues (slow/no browsing, latency) across Fiber, Radio, and LTE-A. Installed & configured P2P Radio/LTE-A links, ensuring LOS for optimal QoS. Decommissioned networks, managed routers (Linksys/MikroTik), and troubleshot Cisco switches via serial. Deployed LTE-A for Mobilink customers.

Provided L1 technical support to corporate clients, resolving internet issues (slow/no browsing, latency) across Radio, Fiber, WiMAX, and LTE-A. Conducted remote troubleshooting, escalated complex cases with diagnostic traces, and monitored outages. Managed ticketing systems, ensured timely complaint resolution, and prepared shift reports with metrics.

I constructed 6 Devices along with 3 more group members which were able to communicate without any backbone network or server. The medium of communication is voice.