David Castillo Email & Phone Number

New York, Ny, Us

New York, Ny, Us

• Performed data processing which consisted of munging, cleaning, feature extraction, exploratory data analysis and feature engineering.• Built the appropriate models(e.g. machine learning/neural networks) in order to address data science problems that could lead to better decision making and/or predictions. • Presented data using python visualization libraries such as Matplotlib and Seaborn to differing ranges of technical and non-technical audiences.Projects:• Obtained inference on 20,000 web-scraped Reddit posts by extracting NLP features and using classification models to get insight between coffee and tea users. • Used musical data to build a neural network that could then be leveraged to learn music and generate new notes. • Forecasted home sales by feature engineering and using supervised learning techniques.• Analyzed SAT and ACT testing scores in order to gauge the relationship between participation rates and testing scores through the 50 states.

Bellevue, Wa, Us

● Established metrics and objectives for the sales team, using Power BI and Excel, resulting in 5 goals being consistently met at ~105% to target.● Conducted workshops on best practices for sales, using Dale Carnegie principles, and Kaizen, leading to ~15% less escalations from year before, and a decrease in ~$1.5K in credits.● Ensured compliance with the Operations Department leading to the resolution of discrepancies that shifted losses from my company to the logistic company in the average amount of ~$15K a year.● Conducted training, using Dale Carnegie principles, and Kaizen, leading to 40+ personnel having promotions or improving ability to meet their targets.

Data Science Immersive, Data Science

Master Of Business Administration - Mba, Accounting And Finance

Political Science(B.A), Political Science And Government

Microsoft Dev 211 Certificate, Web Development