Charlie became part of Chime in 2021.

Software engineer and data scientist for Verily’s Clinical Data team, focusing on better health outcomes for patients with chronic diseases.Eng lead for an external analytics partnership. Developed internal Python libraries and guidelines for handling messy electronic health record data and medical coding schemes. Designed, conducted, and delivered external analyses of medical records for ~15M patients using the Python data science stack (Jupyter, numpy, pandas…).Eng lead of the clinical data ingestion process for a multi-company venture focused on improving diabetes outcomes. Designed and built HIPAA-compliant data ingestion, storage, and access procedures on the Google Cloud Platform stack. Coordinated contractual obligations, timelines, legal requirements, and security procedures across four external partners and multiple internal departments. Successfully ingested sensitive records for 1M+ patients.

Machine learning and Android engineer for Google Play Entertainment. Trained large-scale neural networks to identify previous non-spenders most likely to become paying users. Trained large-scale logistic regression models for personalized content reranking on Entertainment Home; managed and analyzed experimental launches to tens of millions of users. Developed Android client features for Google Play and backend features for digital content prototypes.

Early engineer on the Android platform team for Google Play Education. Designed, built, launched, and maintained NFC-based system for mass setup of student Android devices (reduced tablet setup time from 3-5 min to <5 seconds). Built and maintained a multi-device testing harness for operating-system features. Developed a passion for enabling technology use in developing-country education and prototyped a p2p network system for classroom file sharing in low-connectivity environments.

Senior tutor for the SAT, GRE, and GMAT. Trained new tutors in curriculum design and lesson planning.

Conducted research on the early development of reasoning about goal-directed agents. National Science Foundation Graduate Fellowship recipient.

Conducted and published research on the social psychology of human-robot interaction. Worked with a multidisciplinary team to investigate the use of social robots as therapeutic aids for children with autism.