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Adeonir KohlAK
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Adeonir Kohl

@adeonir

Frontend and Design Engineer, 6+ years in React, Next.js, and TypeScript. I own features end to end, build design systems, and work AI-native.

Brazil
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Frontend and Design Engineer with 6+ years building web products with React, Next.js, and TypeScript. I like to own features end to end: understanding the problem, deciding what to build with product and design, shipping it, and monitoring it in production.

I use AI agents like Claude Code and Codex every day to plan, build, debug, test, and review. I set them up with my own skills, rules, context files, and harness configuration, and connect them to MCP servers to reach external tools and docs.

At Jaya Tech, I worked on the product team of a US client. I migrated a microfrontend from React 18 to 19 and from Next.js 13 to 15, and built components for a shared React and TypeScript library published as a package for the platform's microfrontends.

At Joyjet Digital, a French agency, I designed the architecture for a migration from Vue to React and TypeScript in a Turborepo monorepo and documented the conventions that guided the following modules. Lazy loading and code splitting in the migrated modules cut initial load time by 2 seconds.

Before frontend, I spent over a decade as a graphic designer. Today I build accessible interfaces and the design systems behind them. I'm interested in Frontend Engineer and Design Engineer roles.

Experience

Work history, roles, and key accomplishments

JT

Frontend Engineer

Jaya Tech

Jan 2026 - Sep 2026 (8 months)

Maintained the component library and account management microfrontend for a US client. Migrated a microfrontend from React 18 to React 19 and Next.js 13 to Next.js 15, and built user preference and filter configuration features.

FI

Frontend Developer

Finbits

Jan 2022 - Jun 2022 (5 months)

Built the CSV import and export feature with report generation, integrating the GraphQL API with Apollo Client. Maintained components built with Ant Design and Styled Components.

Education

Degrees, certifications, and relevant coursework

Adeonir hasn't added their education

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