I’m a developer who likes building useful web stuff and sharing what I learn.
Mostly TypeScript across React/Next.js, Vue/Nuxt, Angular, and Node.js.
Madrid-based, open to remote EU. Always happy to pair, review, or chat.
I’m looking to contribute more to the community — picking up good first issues and joining cool projects around the world.
Website • Email • LinkedIn • Public repos
- Dollar — personal finance app (clean architecture + charts).
- Fix It Now — small MVP for home repairs (Next.js + AWS). Help wanted for booking flows.
- QA Frontend Tools — unify Playwright/Cypress/Selenium behind a Cucumber-style facade.
- Udima — I’m working on a v2 to improve load speed and add requested features.
Languages
TypeScript, JavaScript, Python, HTML/JSX, CSS/Sass.
Frontend
React 18, Next.js (App Router), Vue 2/3, Nuxt 3, Angular 16, Tailwind CSS, shadcn/ui, Storybook, Vite, Webpack, Framer Motion, GSAP, Three.js / React Three Fiber (R3F).
Mobile / Hybrid
Ionic (Angular).
Backend & APIs
Node.js, Express, Fastify, Python (Django), REST, GraphQL, WebSockets.
Auth & Payments
NextAuth, OAuth/JWT, Stripe.
Data & Storage
PostgreSQL, MySQL, MongoDB, Prisma, TypeORM, Redis.
Cloud & DevOps
AWS — Lambda, API Gateway, S3, CloudFront, Route53, RDS/Aurora, DynamoDB, Cognito, IAM;
Docker, Nginx, Linux; Terraform, AWS CDK; GitHub Actions (CI/CD); Vercel, Netlify, Supabase.
Testing & QA
Vitest, Jest, Testing Library, Playwright, Cypress, Selenium, Cucumber/Gherkin, E2E test strategy.
Tooling & Workflow
Turborepo (monorepos), pnpm/npm/, ESLint, Prettier, Conventional Commits, Commitlint, Husky, Git/GitHub, Github Actions.
- Dollar — budgets, accounts, CSV import/export, monthly & annual stats, and AI-driven insights.
- fix-it-now — booking & matching; Next.js Server Actions; Supabase; Stripe; NextAuth; Vercel; GitHub Actions.
- Tostariac — product site for a biscuit brand (Nuxt 3, Netlify, Resend, GSAP).
- Udima — university site: degrees, master’s, etc. Performance and features for the new v2.
These are some personal/freelance highlights. I’ve also contributed to employer projects—ping me if you want more examples.
- Be kind, explain trade-offs, leave things better than you found them.
- Keep PRs small. Tests describe behavior. Comments explain why.
- Performance budgets: aim for solid LCP/INP/CLS, measure before/after.
- Accessibility isn’t optional.
Contributing
- I welcome issues, ideas, and tiny PRs (typos included!).
- New to OSS? Check good first issues:
- Testing strategy (unit/e2e), CI basics, DX improvements
- Next.js performance & data fetching
- Clean/hexagonal ideas applied to frontends
- AWS basics for small apps
- Portfolio: https://pedroarenas.dev
- Email: antonioaren2@gmail.com
- LinkedIn: https://linkedin.com/in/antonioaren