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Jonathan S
@jsantiagom
Business Consultant and Data Analyst
Mexico
English, Spanish
About me
I'm Jonathan Santiago, a Data Analyst with 7+ years of experience turning raw data into insights. I specialize in Python-based data cleaning, KPI dashboards, and automation. I combine strong technical skills with a clear business focus to deliver clean, reliable, and valuable results. My work includes transforming messy datasets, building custom dashboards, and automating tasks to help clients make informed decisions based on accurate data.
Skills
Jonathan S
Offline •
Average response time: 1 hour
See my services
Marketing Analytics
I will do ecommerce sales analysis to find trends and opportunities
Data Cleaning
I will clean and format your data ready for analysis
Portfolio
Work experience
Independent Data Analyst
Self employed / Freelance • Self-employed
Jun 2023 - Present • 3 yrs 4 mos
Independent analyst delivering data cleaning, exploratory analysis and reporting projects. Focus areas include customer segmentation, sales and inventory analysis, and e-commerce funnel analysis, turning raw data into clear findings and dashboards that guide business decisions. Tools: Python (Pandas), SQL, Excel, Looker Studio.
Data Analytics Consultant
GNP Seguros • Full-time
Apr 2020 - Apr 2023 • 3 yrs
Business Analyst for the insurance portfolio, working with large operational datasets (claims, policies and customers). Cleaned, validated and standardized data from multiple sources, and built automated KPI reports that supported underwriting and business decisions. Tools: SQL, Python (Pandas), Excel, Power BI.
1 Reviews
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1-1 out of 1 Reviews
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enrilole07
United Kingdom
Thanks, Jonathan! The analysis you helped me with exceeded my expectations and was delivered even faster than I anticipated. I really appreciated how professional, friendly, and proactive you were throughout the process, especially with the recommendations and additional tasks you suggested. The quality...
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