Justin Lee
Senior Software Engineer at Klaviyo
Somerville, Massachusetts, United States
Summary
👤
Senior🎓
Top SchoolJustin Lee is a Senior Software Engineer with 11 years of experience building backend-first systems and turning complex problems into simple, maintainable solutions. He’s worked across startups and scale-ups—most recently at Klaviyo’s ventures team after leading sustainability-focused backend and occasional full-stack work at Indigo—and has deep experience productionizing ML models, distributed runtimes, and microservices. Comfortable spanning data science, geospatial/financial systems, and low-level architecture, he pairs practical engineering with a habit of continuous learning (MS in CS from Georgia Tech). Based in Somerville, MA, Justin brings both hands-on implementation and cross-functional collaboration to projects that move from prototype to production.
11 years of coding experience
7 years of employment as a software developer
Master of Science - MS Computer Science, Master of Science - MS Computer Science at Georgia Institute of TechnologyBachelor of Science - BS Computer Science & Physics, Bachelor of Science - BS Computer Science & Physics at Tufts University
english & chinese (mandarin and cantonese)
Github Skills (70)
fastapi10
python10
json-schema10
swagger10
rest-api10
openapi10
async10
swagger-ui10
api10
rest10
json10
redoc10
starlette9
state-diagram9
state-machine9
Programming languages (7)
Github contributions (5)
justinttl/nvim-config
Jun 2024 - Jan 2026
A launch point for your personal nvim configuration
Contributions:2 PRs, 18 pushes, 1 branch in 1 year 7 months
justinttl/deep3d-tf
Sep 2017 - Sep 2017
Contributions:8 commits, 1 push, 1 branch in 5 days
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