• Served as Services Engineer performing site engineering, integration, configuration and support of products and networks in accordance with clearly defined specification in the customer contract.OSS Network Management Solution specific activities:• Customer phone/remote assistance for resolution of complex technical problems of LTE/WCDMA/GSM OSS Network Management systems of all versions for North American and Global customers.• Integration of Radio and Core Network Elements into the OSS for Fault Management, Configuration Management and Performance Management.• Configuration and administration of the OSS for Fault Management, Configuration Management and Performance Management.• Support Service Delivery Manager to comply with ServiceLevel Agreement. Participated in Life Cycle Management activities.• Planned clear communication strategy, together with the Service Delivery Manager, towards the customer. Followed up with customer on CSR (Customer Service Request). • Managed support and system maintenance for customers in WCDMA and LTE Network Management equipment.

• Served as Product Support Engineer responsible for testing, integration and configuration into customer networks of Tekelec Multimedia Messaging (TMM) Platform.• Provided tier 1 & tier 2 supports on TMM products.• Troubleshot system failures, wrote, tested and implemented software fixes.• Served as direct contact and interface with customers.• Created test plans as per customer RFP and SOW to be discussed with customer.Selected Achievements: • Solutions delivered on-time• Established and maintained strong and trusted relationships with Tekelec’s customer and partners.

Main activities and responsibilities:• Provide onsite liaison between Gemini and NII• Coordinate hot fix patches deployment, as part of the planned tasks• Facilitate and project manage major upgrades• Represent Gemini to hold a weekly (or bi-weekly) RT incident review with NII, along with necessary support from Gemini HQ• Provide tier-2 onsite support to resolve Gemini product field issues timely• Collect necessary logs and statistics to expedite the resolution of field issues• Deployment of new product release that contains added features, which includes adding new nodes to the cluster.

• TAC (Technical Assistance Center) Engineer-Level 3, reporting to the TAC Manager.• Responsible for handling aspects of customer support across the Voice Mail Platform, SMS Platform and Whocalled Platform.• Escalation of high-level failures to Tier 3.5 and Tier 4.• Maintenance window execution for updates on Comverse platforms (Voicemail, SMS, MMS, IVR, VoiCD and Whocalled).• Configuration and upgrades (sometimes on site) in voicemail systems for Telmex, Telcel (México), Telefónica Movistar, Colombia Móvil, Vivo, Claro, TIM, Megatel, Telecom Personal, Entel, Comcel (Southamerica), Sprint, Verizon (USA), Digicel, Claro and Cable and Wirleless (Caribbean Region) and prepaid systems.• Redaction of Methods of Procedure (MOPs) and Statements of Work (SOWs).• Verification on laboratory of MOPs on quality assurance area for Verizon Wireless (USA).• Implementation and configuration of prepaid platform (RTBS) for Alltel (USA).

• Operation of prepaid platform.• Activations and upgrades of prepaid accounts for Voice over IP services.• Attendance and solving of failures about traffic termination and quality of service.• Direct attendance of customer IP@phone, managing its Voice over IP accounts.

• Implementation and maintenance of Voice over IP network (H.323).• Long distance links interconnections with national and international carriers in AXE 10. • Validation of Voice over IP for final customers (CPE).• Software upgrades of Voice over IP elements (gateways, gatekeepers, signaling units).• Network equipment inventory, and RMA following with suppliers.

• Operation and supervision of SDH, DWDM and IP networks.• Inspection of AXE 10 Switches and its links.• Attendance of failures and attendance of internal/external customer reports.• Implementation of network performance tools. • Elaboration of traffic and performance network reports.• Training of new employees in the NOC.• Oral presentations about the NOC to customers and investors.