I am a Data Analyst with a strong foundation in mathematics and engineering, skilled at turning complex datasets into clear, actionable insights through statistical analysis, ETL automation, and data visualization. I have experience working with operational, customer service, and transactional data to support informed decision-making and streamline processes. I’m passionate about building analytical workflows that improve business performance and operational efficiency. My engineering mindset helps me tackle large-scale data challenges and solve real-world problems with practical, scalable solutions. As an advocate for knowledge sharing, I am committed to mentoring teams and fostering a collaborative environment where interdisciplinary ideas flourish. I’m excited to apply my technical and analytical skills in challenging projects, collaborating with cross-functional teams to deliver data-driven outcomes. I continuously pursue learning in machine learning, NLP, and data engineering to create scalable, maintainable solutions that drive business value.

Alexander Sandoval

I am a Data Analyst with a strong foundation in mathematics and engineering, skilled at turning complex datasets into clear, actionable insights through statistical analysis, ETL automation, and data visualization. I have experience working with operational, customer service, and transactional data to support informed decision-making and streamline processes. I’m passionate about building analytical workflows that improve business performance and operational efficiency. My engineering mindset helps me tackle large-scale data challenges and solve real-world problems with practical, scalable solutions. As an advocate for knowledge sharing, I am committed to mentoring teams and fostering a collaborative environment where interdisciplinary ideas flourish. I’m excited to apply my technical and analytical skills in challenging projects, collaborating with cross-functional teams to deliver data-driven outcomes. I continuously pursue learning in machine learning, NLP, and data engineering to create scalable, maintainable solutions that drive business value.

Available to hire

I am a Data Analyst with a strong foundation in mathematics and engineering, skilled at turning complex datasets into clear, actionable insights through statistical analysis, ETL automation, and data visualization. I have experience working with operational, customer service, and transactional data to support informed decision-making and streamline processes. I’m passionate about building analytical workflows that improve business performance and operational efficiency. My engineering mindset helps me tackle large-scale data challenges and solve real-world problems with practical, scalable solutions. As an advocate for knowledge sharing, I am committed to mentoring teams and fostering a collaborative environment where interdisciplinary ideas flourish.

I’m excited to apply my technical and analytical skills in challenging projects, collaborating with cross-functional teams to deliver data-driven outcomes. I continuously pursue learning in machine learning, NLP, and data engineering to create scalable, maintainable solutions that drive business value.

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Experience Level

Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate

Language

English
Advanced
Spanish; Castilian
Fluent

Work Experience

Data Analyst at CENCORA (World Courier de Colombia S.A.)
January 1, 2022 - April 1, 2023
Analyzed customer service, operational, and transactional datasets to identify performance trends and process inefficiencies. Built custom NLP pipelines to extract insights from customer service datasets, reducing manual data processing time by 40%. Developed automated ETL pipelines for cleaning, preprocessing, and aggregating data for reporting and analysis. Optimized relational database queries and ensured data integrity across operational systems.
Head of Mathematics & Technology Department at San Juan de Dios School
July 1, 2016 - December 1, 2021
Led the Mathematics & Technology Department in driving a significant increase in student participation in STEM-related extracurricular activities while improving overall student performance on national assessments for two consecutive academic years. Taught mathematics, statistics, physics, and electronic systems, incorporating computational tools to enhance STEM learning. Enhanced student engagement and mastery of computer science and programming fundamentals by designing data-driven academic programs.
Applied Mathematics and Computer Science Teacher at Los Robles School
January 1, 2011 - December 1, 2012
Introduced data-driven teaching methods, incorporating computational tools and software to facilitate a deeper understanding of applied mathematics, statistics, and computer science concepts. Developed and implemented interactive learning strategies that encouraged student engagement in mathematical modeling, algorithm design, and coding, significantly improving their problem-solving and critical-thinking skills. Managed the school’s server infrastructure, overseeing log maintenance, ensuring smooth operation, and troubleshooting technical issues to maintain optimal performance.

Education

M.S. Data Science & Engineering at The City College of New York
August 1, 2023 - May 1, 2025
B.S. Electronic Engineering at Universidad Cooperativa de Colombia
July 1, 2012 - April 1, 2016
B.S. in Teaching Electronics at Universidad Pedagógica Nacional
July 1, 2005 - December 1, 2010

Qualifications

Google Analytics Certification
January 1, 2025 - January 16, 2026
Diploma: Data Science with Python
May 1, 2022 - January 16, 2026

Industry Experience

Education, Professional Services, Software & Internet, Media & Entertainment, Transportation & Logistics