• Worked on a consulting project to improve job marketplace content based filtering and job classifier.• Built a job recommendations web app “Skill Essence”. Automatically extracted the underlying skill requirement based on unstructured plain text of job description (www.skillsessence.com).• Cleaned data retrieved from PostgreSQL database and from web scraping. • Consolidated multiple data sources, and developed semi-supervised learning strategies to classify 1 million job listings into 900 standard occupations and 16 career clusters.• Predicted skills and ratings for each job listing using Stochastic Gradient Descent Regression, and recommended similar jobs using k nearest neighbors.• Designed and built a web app using Flask, Bootstrap, and Javascript deployed on AWS.