Summary
Software Engineer with 9 years of hands-on experience across diverse tech stacks, from early-stage startups to FANG-scale systems. Adept in designing and delivering robust software solutions using modern languages, frameworks, and cloud platforms.
Open to impactful work.
Skills
Programming Languages: TypeScript, Python, C/C++, Ruby, Java, MATLAB
Tools & Platforms: Bazel, PostgresSQL, Mercurial, Git, Pands, Raylib, XCode
Web Frameworks: Django, Rails, React, Flask
DevOp: Plummi, Heroku, DigitalOcean, AWS, Google Cloud
Language: English, Korean, Japanese
Experience
San Francisco, CA, USA
SOFTWARE ENGINEER
Oct, 2024 - Present
- Took initiative on Channel Value Rule, targeting the 16% of ad traffic with both app and web destinations to improve value attribution and ROI.
- Built full-stack features using React and Hack/GraphQL, contributing to scalable, production-ready systems.
- Partnered with data science to design A/B tests and analyze revenue impact of ads destination.
- Proposed and implemented alpha improvements to internal testing infrastructure, reducing test time by 50% and enhancing developer velocity.
Toronto, ON, Canada
TECHNICAL LEAD ENGINEER
July, 2023 - Sept, 2024
- Implements bazel structure for the company for TypeScript and JavaScript code base for hermiticity and stablishing standards for JavaScript and
- TypeScript testing and code structures.
- Led a team of five engineers in building GraphQL endpoints for client-facing applications using Apollo and AppSync, supporting over 2000 RPS and auto scaling depending on request values.
- Improved application response times by up to 85% for graphQL response by updating database schema and SQL queries, eliminating N+1 queries and lack of indexes.
- Developed CI/CD pipelines for backend structures.
- Designed infrastructure for pub/sub, caching, and media processing logic.
Toronto, ON, Canada
SOFTWARE ENGINEER
Feb, 2022 - July 2023
- Implements and maintained new features relating to App Script across google workspace platform including Gmail, sheets, and Docs.
- Improved a response time and render time of App Script hover card components.
- Collaborated with a team of developers to ensure timely and accurate delivery of features.
- Conducted user testing and gathered feedback to iterate on features for optimal user experience.
Toronto, ON, Canada
SOFTWARE ENGINEER
December, 2020 - Jan, 2022
- Maintained Amazon amplify apps to create and deploy React web applications for companies such as NBA, Tinder, and other companies for COVID-19 at-home test kits.
- Implemented a script that helps accurately access and refund unused covid test kits; helping company save up to 200,000 USD.
- Created several Rails controllers for internal purposes; mocking end to end user experience for QA, mass refund features for CX department, and more, ultimately reducing support tickets amount by 50 percent.
- Implemented an audit table to help debug problems and logged which process was responsible for the change of the record using PaperTrail gems
Oakville, ON, Canada
SOFTWARE ENGINEER
October, 2018 - October, 2020
- Constructed RESTful API endpoints in multiple different frameworks such as Django, Ruby on Rails, and Flask and automated API documentation process using swagger.
- Designed custom rake tasks for importing production data into newly updated data structure to meet client's needs.
- Maintained or updated staging/productions servers. Debugged problems in production postgres database using ssh and postgres console on Heroku or AWS servers
- Collaborated in creating automation python scripts for websites and application using selenium covering for QA eliminating 80% of QA's manual work
Oakville, ON, Canada
SOFTWARE ENGINEER
September, 2019 - October, 2020
- Developed custom Shapley value regression model to calculate importance of independent variables of data sets using sklearn, pandas, and numpy.
- Created custom image uploader to Amazon s3 bucket using boto3 library.
- Built RESTful API application using Flask framework and automated extensive API documentation pages using flask-restplus, pytest, and swagger, covering 95% of the code base.
- Created an interactive graph using D3.js in Vue.js with data from Flask backend API.
Education
University of British Columbia
Kelowna, British Columbia
BACHELOR OF SCIENCE IN PHYSICS
2014 - 2018