Daniel Aguirre

• Lead validation, O&M and support of LTE/5G RAN in multi-vendor environments (Nokia & Ericsson).
• Commissioning and support for 5G SA, 5G NSA, and NB-IoT nodes, ENM & NetaC OSS. Second line of troubleshooting for any issues related to the assigned functionality, lead and support to Tier 1 Engineers.
• Integration, commissioning, and troubleshooting of BTS equipment (2G/3G/4G/5G) Support Field Technicians
• HW migration and troubleshooting.
• Writing scripts and integrating new RAN systems for commercial expansions.
• Supporting with 2CC, 3CC, 4CC, 5CC Carrier Aggregation & testing on the Setup
• Supporting with inter-intra frequency Handover & relations for 4G/5G,VoNR, ENDC, EPS Fallback, CMAS Configuration.

• Implemented automated systems to improve accuracy and efficiency of engineering processes.
• Develop & Mop execution for change request by Customer
• Execute Gold Configuration to Lab Nodes for testing

• Executed LTE/5G regression testing and feature validation in lab environments, ensuring reliability and performance of network features.
• Maintained RAN lab network with updated software baselines and configurations, supporting seamless testing and deployment activities.
• Performed log captures and analysis for LTE/5G RAN equipment.
• Troubleshot network issues across transport IMS and EPC layers, restoring service continuity and minimizing downtime.
• Utilized Unix/Linux CLI for system deployment and diagnostics.
• Developed and executed end-to-end test cases based on 3GPP standards, analyzing L1/L2/L3 protocols.
• Collaborated with Ericsson's teams to troubleshoot production faults, opening CSRs for verified solutions.
• Validated carrier aggregation handover scenarios and conducted node audits for configuration integrity.

• Integrated and commissioned Nokia and Ericsson ran equipment for eNodeB and gNodeB.
• Developed and debugged multi-carrier integration scripts to improve system functionality.
• Supported field technicians with BTS troubleshooting and alarm resolution to enhance operational efficiency.
• Conducted health checks and troubleshooting for LTE and WCDMA sites to achieve performance metrics.
• Updated RFDS documentation for DAS and macro site activities to ensure accurate records.
• Executed restoration and troubleshooting for LTE AWS, PCS, GSM Node-B, and eNodeB alarms.
• Performed configuration script verification for Argus, Kathrein, Andrew, and Hexport antennas.
• Executed VoLTE PSAP call tests, generated reports, and communicated findings to AT&T.

• Supported integration of LTE Advanced shared networks (S-RAN, D-RAN, C-RAN)
• Configured and tested Nokia routers and switches for core aggregation
• S-RAN, D-RAN and C-RAN Hubs New Integration and Support for new shared network of 700 MHz in Mexico (Volte) LTE advanced.
• Integration, Commissioning and Troubleshooting for Flexi Nokia eNodeB, Nokia Flexi, Airscale and CORE Virtual Solution for Altan Mx
• Installation, configuration, and testing equipment’s Nokia 7705SAR, 7210SAS, 7250 to aggregation for access and core layers, configuring, software upgrade, cutover, maintaining and troubleshooting.
• Perform Software Upgrades, Call Processing Plan Test & OAM Testing and Troubleshooting for CRAN Hubs
• Initial Tuning, Change requested, change parameters, improve RSSI/VSWR, define external alarms, RET / TMA Scripting.
• Technical support during the integration phase and live sites (commercial equipment) for SRAN CRAN
• Knowledge of Node’s, ALU 7750/7210 router and knowledge for using Netac, SAM, BTS Site manager, MW9500 Nokia, TLU/PMU 1830 TX.

• Conducted performance KPI analysis and troubleshooting using OSS M2000 data to identify affected counters and propose network enhancements.
• Analyzed top offending cells impacting KPIs, including accessibility, retainability, integrity, availability, and mobility.
• Delivered performance reports to AT&T across 40 markets as part of project requirements.
• Executed physical and logical optimizations involving azimuth, electrical and mechanical tilt, and scrambling codes.
• Audited SSV and alarms for LTE/HSDPA/HSUPA statuses while verifying cell status and neighbor lists.
• Created extensive scripts for CSFB reselection and ANR neighboring to prepare for SSV drive tests.
• Performed drive testing with TEMS tools and Genex Probe to assess network performance.
• Provided technical support and training on RF principles to junior engineers while managing vendor relationships.