Caio Costa
Rio de Janeiro, Brazil
Summary
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SeniorCaio Costa is an AI Application Architect and senior JavaScript engineer with over a decade of experience designing scalable frontends, design systems, and end-to-end solutions for international products. He specializes in React/Vue, TypeScript, test automation (Jest, Playwright) and frontend–backend integration, and is known for refactoring legacy code into maintainable systems and shipping high-performance user experiences. At CostaWeb he combined Spec-Driven Development and prompt engineering to dramatically shorten development lifecycle and built a high-concurrency Node.js collaboration system; previously he led performance and testing initiatives for a Node.js platform serving 130M+ users. Comfortable working across the stack, he also architects secure on-prem workflows integrating multiple LLMs and designs robust data ingestion pipelines for complex datasets. A hands-on mentor and process improver, he repeatedly reduces build and delivery friction while keeping a strong focus on UX and visual consistency.
10 years of coding experience
12 years of employment as a software developer
English, Portuguese
Github Skills (40)
component-based10
js8
neumorphism8
react8
javascript7
typescript7
frontend7
wearables6
pony5
api5
dog5
database-api4
directus4
filemaker4
iot-framework4
Programming languages (2)
Github contributions (5)
CaioCosta/martelo
May 2018 - Oct 2018
Contributions:111 commits, 13 pushes, 4 branches in 5 months
dogandpony/sushi-bazooka
Jun 2018 - Jul 2020
Component-based JavaScript library
Contributions:459 commits, 14 PRs, 184 pushes in 2 years 1 month
neumorphismreactcomponent-basedjavascript-libraryjs
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