Aug 24
My resume tool won't rewrite your resume, and that's the feature
Most of the time, my resume tool refuses to rewrite your resume. That is the feature.
5 min read
Writing24 posts · Since 2025
Notes on systems, LLMs, and the industry building them.
I'm Wenhao, a software engineer. I write up system design problems I've worked through, what I'm learning about LLMs, notes from shipping side projects like ResumeMatch, and the occasional take on layoffs and where the industry is heading.
Pinned
Mar 30
Adding a DynamoDB Caching Layer to a Serverless LLM Pipeline
Another late night on Sunday shipping features. This week I added a caching layer to ResumeMatch that drops duplicate analysis latency from 25 seconds…
8 min read
Mar 21
How I Fixed False Negative Keyword Matching in My LLM-Powered Resume Analyzer
Happy Friday! Weekend's almost here, but before I sign off, I wanted to write up a fix I shipped this week for ResumeMatch.
10 min read