Ronny Chan

ronny@ronnychan.ca (647) 928-6622
Toronto, ON chyyran ronny-chan

Education

H.B.Sc. Computer Science University of Toronto 2017–2022
Computer Science and East Asian Studies, minor in Linguistics. GPA 3.7/4.0.

Professional Experience

Okta Software Engineer II 2022-Present
  • Developing a workflows automation platform with Rust and JavaScript.
Okta Software Engineering Intern Summer 2021
  • Designed and implemented a high throughput push-based communications channel between client applications and server backend, with over 30M pushes/week.
University of Toronto Teaching Assistant 2020-2021
  • Led weekly tutorials teaching Haskell, Racket, and Functional Programming to 240 students.
  • Mentored 250 students in JavaScript, React, and web development.
Okta Software Engineering Intern Summer 2020
  • Implemented on-device proof of identity for verification use during unmanaged authentication scenarios.
BrokerBay Full-stack Software Developer Summer 2019
  • Developed a bespoke OAuth solution with Spring 5, enabling Single Sign On across first and third-party services with OpenID Connect, in use by over 1500 brokerages.
  • Optimized hot-path MongoDB queries using a fast ElasticSearch caching layer, reducing database roundtrips and load times by over 50%.

Open Source and Personal Projects

More at chyyran.dev/things.
Snowflake Maintainer snowflakepowe.red 210
SnowflakePowered/snowflake
Comprehensive framework for creating game console emulator frontends. C# Rust React
  • 200+ APIs provided in a plugin-based, custom dependency injection framework.
  • Type-safe AST-based external program config generation with Roslyn codegen.
  • Client-server model with 180+ GraphQL APIs combined with React-based frontend.
vcdiff Maintainer 22K
SnowflakePowered/vcdiff
SIMD-optimized binary diffing library for .NET. C#
  • Vectorized patch encoding and decoding using SIMD intrinsics at speeds of 50-125 ns/byte.
  • Optimized memory usage to levels comparable to C implementations using .NET Span APIs.
lzma-rs Contributor 264K
gendx/lzma-rs
LZMA decoding library written in pure Rust. Rust
  • Designed a API exposing low-level LZMA/LZMA2 decoding primitives.
  • Optimized decoding performance by reducing 90% of allocations with const generics.
mp4parse-rust Contributor 167K
mozilla/mp4parse-rust
Parser for MP4 audio/video written in Rust primarily for use in Firefox. Rust
  • Added support for parsing iTunes MP4 Metadata atoms.

Skills and Technologies

C# Rust Java Kotlin JavaScript TypeScript C++ C Python Haskell .NET React GraphQL Android Spring