Andrei Calinescu
Frontend Developer at lunit-io
Seoul, Korea, Republic of
Summary
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SeniorAndrei Calinescu is a Senior Frontend Software Engineer with eight years of experience building performant, user-focused web applications and tooling, currently contributing to AI-driven cancer diagnostics at Lunit in Seoul. He combines deep React expertise (Redux, Recoil), robust testing and CI practices (Cypress, Percy), and a background in Python/Node to improve annotation workflows and reduce production bugs—efforts that saved over $50k and halved post-release defects. Trained in genetics and self-taught in full-stack development, he brings a scientific, data-driven mindset to UX and performance optimization, often finding value in small iterative improvements. His career spans startups, education technology, and digital agencies, giving him a rare mix of product, training, and hands-on engineering experience. Outside core engineering, he consults and builds responsive, accessible sites and creates educational content, reflecting a consistent drive to make technology practical and impactful.
9 years of coding experience
Stackoverflow
187reputation
43kreached
6answers
0questions
Github Skills (132)
testing10
certification10
e2e10
javascript10
api10
api-rest10
vscode10
nodejs10
pupeteer10
css10
codebase10
open-source10
math10
react10
uno9
Programming languages (12)
Github contributions (5)
drecali/til
May 2022 - Nov 2022
Contributions:81 commits, 79 pushes, 1 branch in 5 months
Free-Code-Camp-Seoul/fcc-seoul-website
Jul 2020 - Apr 2022
FCC Seoul Website
Contributions:13 reviews, 17 commits, 14 PRs in 1 year 9 months
reactfccseouljekylltypescript
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