Liam Jeon

About Liam Jeon

I am a software engineer passionate about developing high-performance and efficient…

Experience

1. Software Engineer

   Obsidian

   Oct 2022 — Present

   Product developed under Open Source Labs (opensourcelabs.io)- Implemented GraphQL schemas and resolvers to interface with a PostgreSQL database, allowing for accurate and predictable data retrieval and simplifying logic on the client and server side due to the use of a single endpoint- Improved GraphQL implementations by adding a caching layer that stores previous query results for quick retrieval, optimizing response time and reducing the frequency of database calls while maintaining consistent queries and responses- Used Redis\'s advanced data structures to create a server-side cache that efficiently responds to cached GraphQL queries with redirected memory-based data, evicting cache with Least Recently Used (LRU) or Least Frequently Used (LFU) strategies- Utilized a caching strategy that leveraged Deno\'s GraphQL middleware to dissect query strings into fields, allowing for efficient selective querying and instantaneous cache invalidation for mutation-staled keys- Incorporated React components and hooks to improve performance and implement a modular design pattern, leading to easier refactoring and efficient management of unidirectional data flow- Utilized Oak, one of Deno’s server-side frameworks, and its middleware design pattern to achieve modularity and organization when routing GraphQL queries to either the database or cache- Implemented TypeScript\'s static and strong typing to prevent implicit type coercion, which improved debugging, code readability, and the facilitation of easy code maintenance and refactoring- Revamped developer tools by migrating to manifest 3, which improved privacy and performance and fixed previously dysfunctional windows such as the \"playground\" and \"cache\".

Education

• University of California, Los Angeles

  Bachelor of Arts - BA