Summary
Overview
Work History
Education
Skills
Volunteer Experience
Languages
Timeline
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Santiago Castellanos

Grand Rapids,MI

Summary

Motivated student-athlete holding three Bachelor of Science degrees in Economics, Management, and Marketing, and currently pursuing a Master's degree in Data Science and Data Analytics. Skilled in SQL, Python, and experienced with data analysis and visualization tools such as Power BI, Tableau, and Smart Simple. Proven ability to contribute to cross-functional projects, deliver actionable insights, and demonstrate strong communication, analytical, and leadership skills.

Overview

3
3
years of professional experience

Work History

Content Creator Support Intern

TikTok
05.2025 - 08.2025
  • Analyzed performance data to match creators with high-potential products and boost sales.
  • Collaborated with global brands on campaign execution and creator alignment for key product launches.
  • Conducted bilingual (English/Spanish) support calls to strengthen creator relationships and optimize content performance.
  • Supported top-performing creators with 1:1 content strategies, driving GMV growth and exceeding $150K monthly targets.
  • Collaborated with global brands on campaign execution and creator alignment for key product launches.

IT Student Support

Cornerstone University
Grand Rapids, Michigan
08.2022 - 05.2025
  • Worked diligently and successfully to troubleshoot and repair computer problems.
  • Maintained classroom technology through frequent check-ins and service calls.
  • Implemented projects regarding setups of operating systems for users.
  • Microsoft Office suite support

Data Analyst Intern

RDV Corporations
05.2024 - 12.2024
  • Implemented advanced Excel functions, Power BI, Smart Simple and Sales Force for data processing.
  • Conducted reconciliation of accounting data and identified inconsistencies.
  • Created and refined data reports and dashboards for financial and operational review.

Marketing Intern

The Timothy Group
01.2024 - 05.2024
  • Assisted in email campaign strategy and client outreach with the senior sales team.
  • Created CRM reports on campaign performance and customer service.
  • Contributed to market research projects including competitor analysis, surveys, and data interpretation.
  • Developed insights into customer behavior and market trends through research and reporting.

Management Intern

Stanford University Athletics
05.2023 - 08.2023
  • Assisted in managing project timelines, budgets, and resource planning.
  • Facilitate effective communication across teams by coordinating meetings and strategic planning sessions.
  • Participated in decision-making processes, contributing to operational strategies.

Education

Master of Science - Data Science and Analytics

Grand Valley State University
Allendale, MI
05-2027

Bachelor of Science - Economics, Management, Marketing

Cornerstone University
Grand Rapids, MI
05-2025

Skills

  • Data analysis
  • Project management
  • Data visualization
  • Business and market analysis
  • Tableau
  • Power BI
  • Salesforce
  • Smart Simple
  • MATLAB
  • Python
  • R Studio
  • SQL
  • AI tools
  • Stata
  • E-commerce
  • CRM
  • Sprout
  • Team leadership
  • Problem solving

Volunteer Experience

  • USTA wheelchair | August 2024 | Cincinnati, OH
  • USTA para-standing | August 2024 | Cincinnati, OH
  • The Salvation Army | December 2021 | Grand Rapids, MI

Languages

  • English, Fluent
  • Spanish, Fluent

Timeline

Content Creator Support Intern

TikTok
05.2025 - 08.2025

Data Analyst Intern

RDV Corporations
05.2024 - 12.2024

Marketing Intern

The Timothy Group
01.2024 - 05.2024

Management Intern

Stanford University Athletics
05.2023 - 08.2023

IT Student Support

Cornerstone University
08.2022 - 05.2025

Master of Science - Data Science and Analytics

Grand Valley State University

Bachelor of Science - Economics, Management, Marketing

Cornerstone University