# Calvin Choi

> Software Engineer

Location: New York, New York, United States
Profile: https://flows.cv/calvinchoi

My website: ccalvin.com

## Work Experience
### Software Engineer @ Block
Jan 2021 – Present | New York, New York, United States

### Teaching Assistant @ University of Toronto
Jan 2021 – Jan 2021 | Toronto, Ontario, Canada
- Facilitated learning of a web development course by leading a class of over 30 students.
- Taught JavaScript, React, and MongoDB.

### Emerging Machine Learning Developer @ Block
Jan 2020 – Jan 2020 | Toronto, Ontario, Canada
- Deployed the company’s first deep learning model to production using Google’s AI Platform, increasing automation of customer service by ~4%.
- Created new data pipelines to produce and aggregate data for the machine learning engineers.
- Developed a computer vision powered voice-bot which greets employees as they enter the office.

### Teaching Assistant @ University of Toronto
Jan 2020 – Jan 2020 | Toronto, Ontario, Canada
- Facilitated learning of an introductory computer science course by leading a class of over 30 students.
- Taught fundamental concepts on data structures, algorithms, and object-oriented programming.

### Emerging Machine Learning Developer @ Dessa
Jan 2019 – Jan 2020 | Toronto, Canada Area
- Developed a Python SDK to save machine learning model artifacts to redis using Flask and Docker, used by hundreds of AI researchers.
- Integrated graphing libraries into the user interface using React to visualize parameter-metric correlations from machine learning models.

### Junior Software Developer @ PolicyMe
Jan 2019 – Jan 2019 | Toronto, Ontario, Canada
- Created an end-to-end RPA pipeline using React.js, PostgreSQL, Python, Selenium, and AWS Elastic Beanstalk to automate form submissions and save 20+ hours of weekly manual labour.
- Integrated email validation using React.js, Redux, and Kickbox to prevent fraudulent information from polluting the data pipeline.

### Teaching Assistant @ University of Toronto
Jan 2019 – Jan 2019 | Toronto, Ontario, Canada
- Facilitated learning of an introductory computer science course by leading a class of over 30 students.
- Taught fundamental concepts on data structures, algorithms, and object-oriented programming.

### Android Developer @ Computational Cognitive Development Lab
Jan 2018 – Jan 2019 | Toronto, Canada Area
- Designed and developed an Android application to manage psychological experiments for use in current world-leading cognitive research, integrating computer vision models using TensorFlow Lite.

### Lab Data Scientist @ Duncan Lab
Jan 2018 – Jan 2018 | Toronto, Ontario, Canada
- Rewrote a part of the pipeline for eye-tracking experiment data using pandas to improve speed efficiency of data flow by 10x.


## Education
### Bachelor of Science - BS in Computer Science, Cognitive Science
University of Toronto
Jan 2016 – Jan 2021


## Contact & Social
- LinkedIn: https://linkedin.com/in/calvin-choi
- Website: https://ccalvin.com/

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Source: https://flows.cv/calvinchoi
JSON Resume: https://flows.cv/calvinchoi/resume.json
Last updated: 2026-03-23