Robbins Cortes

Experience

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  Nokia

  Oct 2007 - Jun 2009

  RF Optimization Engineer at Telefonica Colombia

  Customer: Telefonica Colombia• Handling of tools for data collection and post processing.• Statistical monitoring of BSC's, RNC's• DRIVE TEST for monitoring and optimization of the GSM and UMTS network of TELEFONICA MOVISTAR.• Physical adjustments (changes azimuth and titl's antennas).

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  Dico Telecomunicaciones S.A.

  Jun 2009 - May 2012

  RF Optimization Engineer At Telefonica Colombia

  Dico Telecomunicaciones S.A. – Customer: Telefónica Móviles de Colombia • Managed, coordinated and implemented activities and team support for RF optimization of the Eastern region of Colombia• Planned and optimized GSM/UMTS Nokia Network• Carried out neighbor audits and optimization of IRAT, Intra & Inter Frequency HO • Executed parameter audits and standardization for GSM/UMTS/LTE Nokia, Network• Reduced pilot pollution to improve network performance and quality• Generated configuration sheets and CDD’s (Configuration Design Data) for new sites• Activated, configured, and optimized GSM Re-farming for UMTS fourth carrier • Provided support to resolve VIP customer complaints• Recommended physical parameter changes and parameters tuning toimprove KPI’s.• Executed technical site surveys to confirm the best location for RF coverage design and validate the RF feasibility• Handled planning of new sites and revision of possible co-locations on existing sites for a Built-to-suit company Show less

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  Ericsson

  May 2012 - Sept 2016

  Ingeniero Senior RF

  Customer: Telefonica Colombia• Managed, coordinated and implemented activities and team support for RF optimization of the Eastern region of Colombia• Planned and optimized GSM/UMTS/LTE Nokia Network• Carried out neighbor audits and optimization of IRAT, Intra & Inter Frequency HO • Executed parameter audits and standardization for GSM/UMTS/LTE Nokia, Network• Reduced pilot pollution to improve network performance and quality• Generated configuration sheets and CDD’s (Configuration Design Data) for new sites• Activated, configured, and optimized GSM Re-farming for UMTS fourth carrier • Provided support to resolve VIP customer complaints• Recommended physical parameter changes and parameters tuning toimprove KPI’s.• Executed technical site surveys to confirm the best location for RF coverage design and validate the RF feasibility• Handled planning of new sites and revision of possible co-locations on existing sites for a Built-to-suit company Show less

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  Nokia

  Sept 2016 - Dec 2020

  NPO Senior RF consultant at Nokia - Nokia - Claro

  • Optimization of cluster and cities in Colombian Caribbean Cost (RSCP, EcNo, RevLev, RSRP, Pillot Pollution, Overshooting, Trx, PCPICH, MaxTxPower, Events as Call Drops and Access Failures).• Neighbor optimization and monitoring (Intra, Inter, IRAT, LTE Cell).• NW, KPI report - New Features.• TOP OFFENDERS Analysis, action plan and monitoring improvements.• Propagation Delay Analysis (TP vrsnRSCp, TP vrs EcNo) and action plan.• Multi band load balancing audits and implementation for load balance in the entire region• keeping Key Performance GSM, UMTS, LTE, VoLTE Indicators (Accessibility, Retainability, Latency, Throughput).• Ensure utmost network quality during special events including regional festivals,• Recommend physical changes and parameter tuning to improve KPIs. Show less

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  Airspan Networks

  Feb 2021 - now

  Sr. Customer Service Engineer

  Senior Customer Service Engineer II•Facilitate customer and internal escalations by opening Helpdesk tickets as needed and managing the escalation process.•Build and leverage relationships to drive action with internal teams and stakeholders.•Lead internal/external calls with appropriate teams, holding stakeholders accountable to achieve desired results.•Reach out to customers to understand the full complexity of issues, setting expectations via phone calls.•Detail and document scale-up progress through Jira, ensuring clear communication.•Identify when more intervention is required, step in, take control, and drive the issue forward.•Engage with customers, Support Delivery, Customer Success, Engineering, and virtual account teams to ensure expectations are met and status updates are provided.•Monitor escalated cases handled by support engineers, RnD, and Software Verification groups, ensuring prioritization and adherence to processes. And perform regular updates for assigned situations.•Manage critical customer escalations, acting as a point of coordination for critical issues.•Provide feedback to stakeholders on lessons learned through escalations.•Participate in technical calls and troubleshooting bridges, creating informative documentation (MOPs, lessons learned, etc.).•Perform KPI monitoring and generate executive reports.•Set up the network in a lab environment and provide on-call support as required.•Commission and integrate 5G nodes for proof-of-concept projects.•Perform detailed analysis of 4G & 5G wireless protocols and recommend network optimizations to improve performance.•Provide periodic weekend coverage work. Show less