Bilal Tarhini

• Overall in charge of managing infrastructure assets and budgets (OPEX, CAPEX). • Playing a pivotal role in increasing revenue by recommending new ideas as well as developing business cases based on commercial requirements. • Key player in the planning, design and implementation a DDOs Solution for MTN Liberia. • Delivery of a standardized MTN Liberia IP network on best practice (IP multilayer, Dynamic Routing, Capacity, Security). • Successful Virtualization of the infrastructure of MTN Liberia. • Spearheading the IT transformation project and development of Geo redundancy plan for MTN Liberia. • Meticulously preparing the IT infrastructure for all charging nodes and IP MPLS for core nodes. • Establishing partnerships with all business Stakeholders, resulting in prompt service delivery for EBU customers. • Consistently achieving SLA through provision of support to all related EBU customer’s activities and projects. • Instilling confidence and satisfaction in EBU customers with the service by building professional relationships. • Serving as First Responder for all Security incidents in MTN Liberia. • Forming part of the vendor selection panel and effectively selecting several vendors across MTN group. • Orchestrating a seamless rollout of a full ISP infrastructure by deploying different technologies.

• Successfully led a cross-functional team of 20 including Field engineers, IT Support, Network team, Internet Support team. • Rolled out project for linking the ACE Fiber Optic Cable including contract negotiations, Prices and SLA. • Developed and deployed project to provide WLAN incorporated with Disaster Recovery Solution for Ecobank, connecting 40+ branches and ATMs. • Oversaw an ISP network (Wi-Fi) with 50+ Access Points covering 70% of the populated area in Liberia. • Engineered execution of a Lottery Project providing connectivity to 1k+ POS via Data SIM cards on the GPRS Network. • Designed and executed whole network infrastructure setup (Cabling, Networking, Labeling, Switching with different VLans, Security using 2 firewalls ASA 5525X,Routers to connect to the internet via 2 Link) • Devised and deployed the IT infrastructure (Servers HP G8, VMware ESXI, Mail, FTP, Storage, Backup, Radius, QOS).

• Promoted from Customer Support Specialist and NOC Engineer within 2 years of hire (Jan 2005 – Jan 2007) to become Senior Network and Systems Engineer. • Ensured proper configurations execution and recommended efficiency improvement & streamlining by monitoring network capacity. • Successfully performed many VoIP & telephony products testing and evaluation plus platforms interoperability testing. • Took charge of LAN, WAN network hardware and software evaluations, testing and deployment. • Drove the development, support and management of LAN, WAN, and IP protocols including EIGRP and BGP.

2007 Xplorium offshore - Member of Comium group - BEIRUT, Lebanon Providing on-call and email support for our retail and wholesale customers and following up customer's complaints. Troubleshooting customer's trouble tickets related to our broadband telephony, callback and calling cards services. Perform remote troubleshooting and diagnostics and resolving technical problems. Provisioning, configuration and installation for VoIP products such as ATA, IP Phones, Soft phones, FXO and FXS gateways. Creation of batches, accounts, rate and routing tables on the network VoIP platforms. Setup, configuration and monitoring for the VoIP and telephony platforms such as Sysmaster VM2000 and SM7000, PortaOne PortaSIP and PortaBilling, Voipswitch, Asterisk, AddPac Gateways. Monitoring the voice network servers, gateways and components using several network monitoring tools such as Solarwinds Orion, What's up, local access to srevers for service and application monitoring. Reporting and escalation of network problems and documenting the appropriate action procedure. Performing routes quality tests, troubleshooting calls and routes failures and reporting to carriers. Configuration and administration of AddPac call manager in addition to creating Voice VPN interconnections to multiple remote sites.