Member of the Analytics Team, responsible for maintaining and updating executive, fraud prevention, marketing, and customer tracking dashboards in Google Data Studio. Designed and optimized custom SQL queries in Google BigQuery. Managed BigQuery operational costs through query optimization and table partitioning strategies. Administered and integrated multiple data sources in Google Data Studio, including SQL queries, BigQuery datasets, Google Sheets, and CSV files using advanced data blending techniques. Monitored Jira ticket compliance and task tracking processes to ensure proper BI workflow execution. Updated ETL processes in Pentaho for Legacy system integrations. Developed Python-based applications for commission and recharge calculations tailored to enterprise clients such as Nestlé. Supported structured data reconciliation within the Google Cloud Platform Lakehouse environment and unstructured data validation from internal servers. Designed and organized data layers in Google Cloud Storage following the Medallion Architecture framework (Bronze, Silver, and Gold layers) for Lakehouse implementation. Developed Machine Learning models for customer churn prediction through research, testing, and deployment of sequential and parallel modeling approaches aimed at reducing false positives. Temporarily assumed team leadership responsibilities during the immediate supervisor’s vacation periods.

Member of the Data Mining team, responsible for generating actionable insights through statistical analysis and data modeling to support credit risk management. Responsible for executing and maintaining a daily automated email application. In charge of verifying daily updates of management dashboards in Microsoft Fabric, through the configuration of cluster-type gateways. Implemented machine learning models to predict customer churn rate. Validated machine learning models using supervised learning techniques and cross-validation in Python, ensuring avoidance of model overfitting. Designed and maintained advanced SQL queries using operational CTEs to perform data integration and cross-functional analysis for areas such as Marketing and Operations. Automated data verification processes by developing Python programs, integrating Data Warehouse connections, Excel report ingestion, and SQL query execution. Developed ETL-type automation processes in Python for data loading into the Business Intelligence Data Warehouse. Produced technical documentation and training videos for the developed applications. Supported the IT Infrastructure and Operations team during the migration to a new incremental Data Warehouse architecture. Responsible for validating data loads and ensuring data integrity within the Data Warehouse. Supported portfolio change management and operational restructuring of regional management teams through Power Apps–based solutions. Monitored Data Warehouse connectivity and availability using Windows Command Prompt (CMD) diagnostic tools.

Member of the AQP Project Team, responsible for verifying the proper installation and commissioning of 4G sites, including both pole-mounted and tower-based deployments, ensuring compliance with technical and quality standards. Performed engineering office–based technical validation of 4G site installations executed by field teams, verifying operational components such as ODU, IDU, CSU, battery racks, dry contacts, grounding bars, and lightning protection systems, for accurate registration in the BTS Management system. Recorded photographic installation evidence through virtual checklists in the BTS Management platform covering infrastructure (antenna supports, dual grounding bars, lightning protection, grounding pits), microwave systems with proper labeling (ODU, IDU, RRU, CSU, SRT, coaxial cables), and transmission parameters (NetTracK measurements, electrical tilt, noise floor). Supported the monthly expense planning process by consolidating operational costs (field technicians’ travel allowances and accommodation), as well as completing 4G site electricity consumption tables for monthly financial closure. Uploaded expense planning and forecast documentation to VOffice for review and approval by Vietnamese General Management. Monitored and controlled 4G site electricity consumption through monthly utility bill analysis (SEAL). Optimized maintenance route planning in Arequipa through direct coordination with site landlords, improving operational efficiency and time management.

Designed electromagnetic sensors on flexible polyimide substrates using silver nanoparticle and graphene inks. Designed and printed multigenerational Single Band and Ultra-Wideband (UWB) antennas. Performed measurement and characterization of UWB sensors, resonators, and antennas using Rohde & Schwarz Vector Network Analyzers (VNAs). Conducted direct dielectric property measurements of samples using a DAK probe. Executed VNA calibration procedures including short circuit, open circuit, and 50-ohm load calibration (Rohde & Schwarz). Performed UWB sensor measurements in water samples containing cadmium, arsenic, and copper for sensor calibration and validation. Attended technical training sessions in English with French suppliers for proper operation of the printing equipment. Operated additive manufacturing equipment for mass printing of antennas and sensors. Responsible for identifying, documenting, and reporting printer performance issues. Performed preventive maintenance with remote support from French manufacturers, conducted in English. Developed technical manuals and training videos for university staff.

Continuously updated and improved course materials for class delivery. Developed didactic and hands-on instructional materials to teach students from all academic faculties. Designed the microcontroller course content matrix and presented it to the School Director for approval. Participated in monthly academic coordination meetings.