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Juan David GuerreroJG
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Juan David Guerrero

@juandavidguerrero

Junior Data Scientist turning data into actionable insights with Python, SQL, and machine learning.

Colombia
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What I'm looking for

I’m currently seeking a Junior Data Scientist or Data Analyst position where I can apply Python and SQL to deliver actionable insights—combining statistical rigor, clear visualization, and machine-learning results that support strategic decisions.

I’m a Junior Data Scientist with experience in statistical analysis, advanced data wrangling, and developing actionable insights using Python, SQL, and analytical methodologies. I enjoy translating complex data into clear conclusions that support strategic decision-making.

I’ve built hands-on projects in machine learning, hypothesis testing, data visualization, and multivariable analysis using real-world business datasets. From revenue optimization to churn prediction, I focus on turning analysis into measurable commercial and customer outcomes.

My prior experience as a Data & Accounting Analyst strengthened my quantitative thinking, numerical precision, and my ability to identify patterns, inconsistencies, and optimization opportunities. I’m currently seeking a Junior Data Scientist or Data Analyst position where I can keep delivering practical insights with rigorous, data-driven methods.

Experience

Work history, roles, and key accomplishments

PA

Data & Accounting Analyst

Proper AI

Feb 2024 - Aug 2025 (1 year 6 months)

Analyzed daily accounting data to identify inconsistencies and reduce reprocessing, improving the reliability of financial records. Cleaned and structured financial information to improve monthly closing times and supported strategic decisions with detected behavioral patterns.

PL

Accounting Data Assistant

Profesionales de la Salud y Cía Ltda

Jan 2022 - Feb 2024 (2 years 1 month)

Organized large volumes of financial data to optimize record-keeping and performed bank reconciliations with discrepancy detection. Prepared management reports with interpretative analysis to support operational and financial oversight.

Education

Degrees, certifications, and relevant coursework

TripleTen logoTR

TripleTen

Data Scientist Program, Data Science

Completed a Data Scientist Program with a planned completion in 2026.

Universidad Autónoma de Bucaramanga logoUB

Universidad Autónoma de Bucaramanga

Business Administration, Business Administration

2021 -

Studied Business Administration at Universidad Autónoma de Bucaramanga starting in 2021.

Tech stack

Software and tools used professionally

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