Open to opportunities

Jovan Espinosa

@jovanespinosa

Message

Junior data scientist skilled in Python, ML modeling, and data storytelling to deliver business insights.

Mexico

Message

What I'm looking for

I seek a junior/mid-level data role where I can apply ML modeling, ETL and data storytelling in a collaborative team that values learning and impact.

I am a junior data scientist with hands-on experience from an intensive bootcamp, building end-to-end projects in Python, scikit-learn and SQL that focus on supervised learning, model evaluation, and optimization. I apply statistical analysis, hypothesis testing, and robust data wrangling to produce reproducible ML pipelines and actionable data storytelling.

My background combines practical project work—classification and regression models, handling imbalanced datasets, and ETL pipelines—with professional experience leading training, improving quality processes, and driving measurable operational improvements. I am eager to contribute project-proven skills to solve business problems and deliver data-driven insights.

Experience

Work history, roles, and key accomplishments

Current

Business Process Operator

Current

Tata Consultancy Services

Sep 2015 - Present (10 years 4 months)

Led onboarding and training for new insurance agents and improved operational consistency by editing SOPs and quality guidelines, reducing policy processing errors by 25% and increasing productivity by 30%.

Quality Assurance SOP Development Onboarding Process Improvement Insurance Operations

Prospection Agent & Coordinator

Casas Javer

Feb 2015 - Jul 2015 (5 months)

Increased qualified sales leads by 40% through targeted outreach and coordinated logistics and shift planning for promotional teams, enabling higher client contact rates and improved conversion via feedback-driven script adjustments.

Lead Generation Sales Coordinator Campaign Execution Scheduling Sales Outreach Performance Tracking Communication

Bilingual Sales Agent

Budget Car Rental

Jul 2014 - Jan 2015 (6 months)

Streamlined contract closing processes to reduce wait time by 15% and improved customer satisfaction by delivering clear multilingual service on insurance, billing, and vehicle condition issues.

Bilingual Customer Service Sales Contract Processing Customer Satisfaction Multilingual Communication

Hispanic Bilingual Agent

Teleperformance

Jul 2012 - Feb 2014 (1 year 7 months)

Provided bilingual technical support and customer service handling 80+ interactions daily, improved billing accuracy and achieved a 92% average customer satisfaction in monthly QA evaluations.

Technical Support Bilingual Support Customer Service Billing QA Troubleshooting Communication

Education

Degrees, certifications, and relevant coursework

Tripleten

Data Science Boot Camp, Data Science

2024 - 2025

Completed an intensive Data Science bootcamp covering supervised learning, model evaluation, preprocessing, and end-to-end project work using Python and scikit-learn.