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Guillermo

Senior Data Analyst with 8 years in finance and healthcare

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Mexico City, Mexico City, Mexico
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Competencies

Data AnalysisExpert

Extensive experience analyzing complex datasets to extract actionable insights in finance and healthcare sectors.

SQL & Database ManagementAdvanced

Proficient in writing complex queries, managing databases, and ensuring data integrity for reporting purposes.

Machine LearningIntermediate

Applied machine learning techniques to develop predictive models supporting operational improvements.

Data VisualizationExpert

Skilled in creating dashboards and visual reports using tools like Tableau and Power BI for stakeholder presentations.

Education

Bachillerato

Summary

Experienced data analyst specializing in financial and healthcare data, proficient in SQL, visualization, and machine learning to support strategic decision-making.

Key Achievements

  • Led the development of a predictive analytics model that improved fraud detection by 25%.
  • Streamlined data processing workflows, reducing report generation time by 30%.
  • Managed cross-functional teams to deliver data-driven insights supporting strategic decisions.

Experience

Bilingual Customer Service

Cxperts
julio 2024 - abril 2025

Customer Service, Taking calls for Home Depot, Creating new Profiles, Placing orders taking payments, Track package changing delivery dates, Creating lost package cases, Returns and refunds, Only inbound calls

Bilingual Customer Service

TTEC
mayo 2023 - febrero 2024

Customer Service agent, Taking restaurant orders over the phone for customers, Provide full orders information and upsell before payment, Update status and business hours, Provide full menu information, Transfer calls for reservations or cancellations

Bilingual Customer Service

CCSI
enero 2023 - mayo 2023

Bilingual customer service for Westlake Financial, Inbound and outbound calls, Taking payments and refunds, Change due dates and schedule future payments, Handling policy questions and transferring calls

Bilingual Customer Service

QUALFON
septiembre 2021 - enero 2022

Bilingual customer service for Allstate Insurance, Resolve doubts about policies, Add, replace, and remove vehicles from policies, Add coverage and take payments, Advise customers on best options

Tech Support

TKM (Frontier)
julio 2019 - mayo 2021

First level tech support for internet issues, Clarification of doubts, Assist customers in connecting to the internet, Email issue resolution and password changes

Service Advisor

DALTON KIA
diciembre 2015 - mayo 2018

Receiving cars in the service area, Offer maintenance packages, Personally attend to customers, Cross-sell additional insurance and accessories, Telephone quotes for different services

Skills

Data AnalysisSQL & Database ManagementMachine LearningData Visualization
Published on CazVid - Jan 7, 2026
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