Data Scientist at Klarna and Masters Student at UCLA studying Applied Statistics. My skill set is primarily based around Python, R, and SQL.Feel free to reach out at johnny.shan@gmail.com!
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Data ScientistPlaystationSan Francisco, Ca, Us -
Data ScientistKlarna Oct 2021 - PresentLos Angeles, California, United States− Used Python to build and deploy ML models that scored transactions based on their likelihood of being fraudulent, leading tothe prevention of over $300,000 in fraud losses over a span of 6 months− Conducted performance analysis to evaluate the need for model replacement and completed retraining on underperformingmodels, resulting in monthly savings of $4,000− Evaluated the efficacy of third-party vendor data to assist in determining domain budget allocation, then implemented theexternal data into the fraud policy, saving $600,000 in potential fraud losses− Identified fraud patterns by running queries, creating visualizations, and dashboarding to produce fraud policy changes thatprotect the company from fraudulent customers− Collaborated with legal and compliance teams to explain model architecture and variable importances in a non-technicalmanner to ensure fair lending practices -
Solutions Architect InternAmazon Web Services (Aws) Jun 2020 - Sep 2020Virtual− Worked 1-on-1 with a client to deliver a machine learning solution to help identify potential hurricanes using AWS services− Delivered presentations to clients and team members detailing machine learning capabilities on AWS− Gained experience working with cloud solution strategies and obtained AWS Certified Cloud Practitioner certification -
Data ScientistCalifornia Cybersecurity Institute Sep 2019 - Jun 2020San Luis Obispo, California− Designed machine learning model to identify potential cases of human trafficking− Wrote data scraping scripts to gather and store data in computable formats− Delivered reports and public presentations documenting the results of various projects -
Instructional Student Assistant – Data StructuresCal Poly Slo Csse Department Jan 2019 - Jun 2019San Luis Obispo, California Area− Instructed students on implementing various data structures in Python− Assisted students in analyzing and debugging Python code− Held office hours to provide students with additional feedback and aide
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Instructional Student Assistant – Statistical Inference For ManagementCal Poly Slo Statistics Department Sep 2018 - Jun 2019San Luis Obispo, California Area− Aided Professors in grading and critiquing undergraduate students’ coursework− Computed scores and analyzed data on Excel spreadsheets using macros and formulas
Jonathan Shan Education Details
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Applied Statistics
Frequently Asked Questions about Jonathan Shan
What company does Jonathan Shan work for?
Jonathan Shan works for Playstation
What is Jonathan Shan's role at the current company?
Jonathan Shan's current role is Data Scientist.
What schools did Jonathan Shan attend?
Jonathan Shan attended University Of California, Los Angeles, California Polytechnic State University-San Luis Obispo.
Who are Jonathan Shan's colleagues?
Jonathan Shan's colleagues are Marlinde P., Tarnesea Elder, Marta Gonzalez De Galdeano, Rahul Saini, Joakim Westgren, Karl Ruprecht, Sugandha Chaudhary.
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Jonathan Shan
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