Osmar Petry

Luxembourgish-Brazilian Senior Software Engineer with 10+ years building and scaling web and mobile products across EU and US distributed teams. Full-stack delivery across TypeScript and Python: product interfaces in React, Vue and Next.js, backend services with Node.js, FastAPI and Temporal, and the testing, CI/CD and observability practices that keep them reliable in production.

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Write to osmarpetry@gmail.com

Some companies I already worked with

Independent work

Projects, experiments, and assessments.

Selected self-directed builds kept separate from professional company work. The projects page preserves the tier order, but the intent here is independent exploration and implementation range.

Cover image for echo-coach-lingue.

Echo Coach Lingue

Language-learning typing trainer with custom Markdown practice, TTS listening, typing-speed benchmarking, and pronunciation context links through Forvo and YouGlish.

StackReact · Vite · Material UI · Tailwind CSS

Live GitHub
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Roast My Landing

Landing-page audit app that reviews a website and returns three focused tips across marketing, SEO, and performance.

StackNext.js 16 · Lighthouse · OpenAI · Postgres

GitHub
Cover image for chargebee-brevo-sync.

Chargebee Brevo Sync

Webhook-driven billing and CRM sync demo built around Chargebee events, Brevo contact updates, and a stateless Next.js flow.

StackNext.js 15 · TypeScript · Vitest · Playwright

Live GitHub
Cover image for citadel-character-atlas.

Citadel Character Atlas

Responsive Rick and Morty API character browser with GraphQL search, filters, pagination, localization, and a detail drawer.

StackNext.js 15 · GraphQL · Storybook · Playwright

Live GitHub
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Latest writing

Recent posts from the blog.

Short previews from the blog, using the same fast-scanning list rhythm as the rest of the portfolio.

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