Bayview Secondary School

The Johns Hopkins University

Senior Machine Learning Engineer at Affirm

Affirm

Senior Machine Learning Engineer

Building Affirm's ML Platform 1 hyperparameter at a time.

Software Engineer - Machine Learning

Machine Learning in Healthcare:
-  Implemented front and back-end product features, which led to an improvement in end-user adoption from 75% to 90%
-  Created a reproducible analysis of application and clinical metrics to demonstrate efficacy of the product over 1 year of deployment.
-  Gathered user feedback and data insights, wrote feature specs addressing them, and managed the product development cycle.

Stealth Mode Startup Company

Product Engineer

I worked in the Machine Learning and Healthcare Lab (PI: Dr. Suchi Saria) on two research projects:

Active Learning for Building an EHR-based Phenotyping Algorithm
-  Created, implemented, and tested a new machine learning algorithm using Python, ScikitLearn, and Jupyter on real-world EHR data.

User Study of a Deployed Machine Learning System for Sepsis Diagnosis
-  Wrote and conducted user interviews for gathering qualitative data. Generated research ideas and developed initial codes from interview transcripts.

Research Assistant

I worked in the lab of Dr. Jennifer Elisseeff on two independent research projects:

Bayesian Networks for Predicting Recovery from Surgery
-  Created and implemented a new machine learning model of surgical recovery time using immune cell data. Results were presented at several conferences and won $2500 grant. Technologies used: Python, C++, Keras, Scikit-Learn

RNA-seq Data Exploration and Visualization Pipeline
-  Implemented a cloud-based data pipeline that processed and visualized 1TB of RNA-seq data. Used pipeline to generate and test research hypotheses. Technologies used: R, AWS EC2, Python, ggplot2, matplotlib

Research Software Engineer

Global Hand Initiative is a social venture 3D printing prosthetic limbs and empowering communities across the world with this technology.

Tony Wang