Open to opportunities

Jesús Hernández

@jesusahb

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Hi, I'm a Mathematics Student getting into Data, to accomplish the goal of becoming the greatest AI/ML Engineer.

Venezuela

Message

What I'm looking for

I seek a data-focused role where I can build ETL pipelines, ensure data integrity, apply statistical rigor, and deliver insights to drive business decisions.

I’m in love with numbers and the color blue, I’m also autodidact and got to learnt everything by myself in the past months, I’m currently a junior Data Analyst but I already stepped into Data Science and I’m planning to stay there for a long time, until I’m ready to go for AI/ML Engineering. As of now, I made 2 projects related to Data Analysis, one where I help a simulated business get their own data pipeline and I included business insights to improve sales and retention, and I also did a SaaS Tech project where mathematical thinking and validation were the main goal to achieved.

Experience

Work history, roles, and key accomplishments

Data Analyst (Project)

SaaS Retention Engine

Jan 2026 - Feb 2026 (1 month)

Engineered an end-to-end pipeline simulating 600 user logs into a PostgreSQL star schema, used Pearson correlation and p-value analysis to link profile completion with user lifespan and built SQL CTEs to identify a critical churn window in Month 1.

Python NumPy Scipy SQLAlchemy PostgreSQL

Retail Analytics Analyst

Lumina Fashion Group

Jan 2026 - Jan 2026 (0 months)

Designed and implemented a star schema to unify four data domains, sanitized 1,000+ records to produce a zero-bias dataset, and identified discount inelasticity leading to a proposed 15% margin optimization roadmap.

Star Schemas SQLAlchemy Python Data Cleaning ETL Reporting

Bilingual Data Support

Select Portfolio Servicing

Apr 2022 - Jul 2025 (3 years 3 months)

Managed CRM databases and verified accuracy for 500+ client records weekly, developed productivity tracking tools, and resolved 100+ client communications daily in English and Spanish while improving appointment completion to 30%.

CRM Management SQL Reporting Python Bilingual Support ETL