Arthur Cavini

Senior Front End Developer

Build a decentralized social app on Nostr with TypeScript, Svelte and SvelteKit over secure WebSockets. Delivered real-time chat in two weeks with no prior Nostr/Web3 experience. Own AWS Amplify deploys and GitHub Actions CI (Cypress e2e, AI PR review). Built RAG pipelines, MCP servers, fine-tuning and Cursor/Claude/Figma/Meet/Jira/Slack integrations as internal AI-assisted dev tooling.

SvelteSvelteKitTypeScriptNostrWebSocketsAWS AmplifyGitHub ActionsCypress

Senior Full Stack Developer

BTG Pactual Bank

Converted a legacy HTML and C# application to React with TypeScript for the bank's internal insurance platform for farmers. Built a reusable Storybook-documented UI component library, RESTful Node.js/Nest.JS APIs with Redis, Jest tests and feature flags; managed AWS pipelines and mentored 5 developers.

ReactTypeScriptstyled componentsStorybookJestExpressAWS

Front End Developer

Delivered custom front-end solutions for various clients using JavaScript, React, HTML5, and CSS3.

JavaScriptReactHTML5

Senior Full Stack Developer

Modernized a legacy JavaScript/jQuery sales-tracking tool for sales executives into a React + TypeScript web app. Built a UI library with Styled Components; unit tests with Jest and automated e2e with Cypress; mentored developers. Maintained a Node.js/Nest.JS API in TypeScript with Redis for caching and session storage, and fixed bugs on a React Native (TypeScript) app.

ReactTypeScriptstyled componentsJestCypressNodeExpressReact Native

Full Stack Developer

InstaCarro

Built a car-sales e-commerce platform from the ground up with Next.js, TypeScript, and Bootstrap, with Jest unit tests and Cypress e2e. Helped the backend team implement and maintain API routes with Node.js/Nest.JS and Redis in TypeScript.

Next.jsTypeScriptBootstrapJestCypressNodeExpress