Leon

Experienced machine learning scientist, ex Amazon researcher

What I can help you with

Machine learning idea validation;
Building a machine learning, AI system with minimal cost;
Building recommendation engine;
Fund raising;
Hiring a machine learning engineering team;
Preparing a data scientist job interview;


About me

Experienced data scientist and entrepreneur with 10+ years of industrial experience;
Built large scale machine learning systems at top tier tech companies;
Raised 1 million dollars from venture capitals and created a startup company in machine learning;
Founding member of Amazon Ads;
Interviewed thousands of candidates for Data Scientist, data analyst, software engineer, researchers jobs.


Work Experience

Amazon
3 years

Research Scientist

Researcher on Amazon Ads and Retail team


Additional

Hands on with data, many years of SQL experience in RDBMS (Postgres, MySQL), big data (Hive, Spark, Hadoop); data analytics (R, Python) and data visualization (D3,Tableau); engineering development (Scrum, Git, Jira).

Strong technical and engineering background, filed and invented multiple patents. A strong bias towards actions attitude, experienced in scaling up prototypes (MVPs) to web scale products that handle large scale customer demand with cloud platforms such as AWS and Heroku.

Industrial experience: iOS, Advertising, App Store, Education, Music, Books, E-Commerce, Automobile, Display Ads, Search Ads, TV Ads, SEM, SEO, Startup

Area of expertise: Machine Learning, Text Mining, Realtime Pricing, Natural Language Processing, Consulting, Hiring, team building

Tech stack: Python (Django), R, SQL, Apache Spark, Hive, Hadoop, AWS, EMR