Luis Carlos Madera Guerrero
@luiscarlosmaderaguer
Data Analyst focused on database management, Excel insights, and customer support.
What I'm looking for
I bring more than 3.2 years of experience in data management and analysis, databases, and customer service through e-mails. I’m comfortable turning raw information into organized records and actionable insights using structured Excel workflows.
I’ve supported back-office operations such as bank dispute resolution, document validation, and data validation. I also handle customer service support (tickets, e-mails) and maintain accurate communication to keep processes moving smoothly.
In my roles, I managed databases, created conditional Excel tables, and worked with inventories—supervising and archiving information when needed. I’ve also contributed in administrative environments by running PC general use tasks and applying Microsoft Office tools.
Most recently, I’ve expanded into logistics-focused customer service and commercial support, including document validation, route tracking, invoice tracking, and cold sales of transport and freight services. With my English skills (B2+ and advanced), I aim to keep growing in a dynamic, professional team.
Experience
Work history, roles, and key accomplishments
Carrier Sales Specialist
Gentle Lean Solutions Group
Jun 2025 - Jan 2026 (7 months)
Handled customer service in logistics, performing cold sales calls and phone/email support while validating documents and managing routing. Tracked routes and monitored invoices for transportation and freight services.
Inventory & Excel Admin
Universidad Mayor de Cundinamarca
Apr 2024 - Feb 2025 (10 months)
Managed Excel-based operations for inventory administration, including creation and supervisory archival tasks. Supported information organization and warehouse/inventory related documentation workflows.
Data Analyst / Archivist
Data & Datos S.A
Mar 2024 - Apr 2024 (1 month)
Provided customer service support and handled archival/data organization tasks in a data-focused role. Supported information management with Excel and administrative documentation workflows.
Data Analyst
Teleperformance Colombia
Aug 2023 - Mar 2024 (7 months)
Validated documents and analyzed account-related data for USA card/accounts, supporting customer requests. Maintained Excel usage for medium-level data handling and reporting.
Data Analyst
Data & Datos S.A
Jan 2022 - Aug 2023 (1 year 7 months)
Managed databases and medium-level Excel reporting for agro-business product import/export records, including data entry and administrative email/voice support. Performed back-office tasks and customer service support related to data and documentation.
Education
Degrees, certifications, and relevant coursework
Universidad de La Sabana
Data management & analysis
2023 - 2024
Studied data management and analysis, including databases, and provided customer service through email during 2023–2024.
Gimnasio Santa María del Alcázar
High School
2011 - 2022
Completed high school studies at Gimnasio Santa María del Alcázar from 2011 to 2022.
Availability
Location
Authorized to work in
Job categories
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