Johnny Chang - Software Engineer at SoFi

Johnny Chang

Software Engineer at SoFi

Taipei, United States

Join Prog.AI to see contacts

Summary

👤

Senior

🎓

Top School

Johnny Chang is a software engineer with a decade of experience building 0→1 products, AI research prototypes, and highly available distributed systems for fintech and healthcare. He has shipped scalable APIs and cloud-native platforms used by millions—most recently contributing to Galileo Financial Technologies’ backend serving 160M+ customers and previously leading core product development at a fintech startup that reduced cloud costs by 50%. Comfortable across Python, Go, Java/TypeScript stacks and all major clouds, he bridges ML/LLM research and production: at CMU he reimplemented Tree-of-Thoughts and built an LLM-powered code review deployed in classrooms. Johnny’s side projects explore practical AI agents (stock recommendation systems) and an AI chatbot with built-in version control, reflecting a bias for applied research and reproducible experimentation. Based in Taipei with international experience, he combines hands-on engineering with measurable product impact and operational rigor.

9 years of coding experience

5 years of employment as a software developer

Bachelor's degree, Mechanical Engineering, Bachelor's degree, Mechanical Engineering at National Taiwan University

Bachelor of Science - BS, Computer Science, Bachelor of Science - BS, Computer Science at Oregon State University

Master of Science - MS, Software Engineering, Master of Science - MS, Software Engineering at Carnegie Mellon University

Chinese, English

Stackoverflow

Stats

1reputation

0reached

0answers

0questions

Github Skills (139)

authentication10

spider10

xadmin10

pip10

scrapyd10

python-development10

django10

voting10

django-project10

openid-connect10

java10

two-factor-authentication10

virtualenv10

packaging10

Programming languages (9)

JavaShellCoffeeScriptC++RustJavaScriptGoRuby

Github contributions (5)

hiimdoublej/django-json-ld

Jan 2019 - Feb 2022

a template tag to help render json-ld structured data.

Contributions:2 reviews, 35 commits, 19 PRs in 3 years 1 month

json-ldrenderstructuredtemplate-tagstructured-data

hiimdoublej/hiimdoublej.github.io

Apr 2018 - Feb 2022

Contributions:11 pushes, 1 branch in 3 years 11 months

Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.

Request Free Trial