Rony CozziFull stack developer · UX/UI designer

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Profile

Portfolio · 2026

Rony Cozzi

Full stack developer · UX/UI designer

I design interfaces and build web products: frontend, APIs and data with Next.js, TypeScript and PostgreSQL.

Córdoba, Argentina · UTC-3 · Remote

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Stack and capabilities

From the screen to the database

I design and build a complete feature: interface, frontend, API, data, testing and deployment.

  • UX/UI design

    • Information architecture
    • Flows and screens
    • Design tokens
    • Typography and color
    • Responsive
    • Accessibility AA
    • Interactions

  • Frontend

    • HTML5
    • CSS3
    • JavaScript
    • TypeScript
    • React
    • Next.js
    • Tailwind CSS

  • Backend

    • Node.js
    • REST APIs
    • PostgreSQL
    • Prisma
    • SQL
    • Validation with Zod
    • Login and users

  • Delivery

    • Git and GitHub
    • GitHub Actions
    • Vercel
    • Docker
    • Vitest
    • Playwright
    • SEO and performance
    • AI-assisted workflow

Featured projects

Featured projects

Websites, systems and digital experiences.

JAC Studio homepage with a metallic ring on a dark background.

My studio, with Tomás Abalos

Design, web development and systems for brands and businesses. At JAC Studio, we work with you from the first idea through launch.

Tell us about your projectExplore JAC Studio

Other projects

  1. Visit site
  2. Visit site GitHub repo
  3. Visit site
  4. Visit site
  5. Visit site

Experience

Product and engineering experience

Architecture, interfaces and full stack development. My most recent work first.

  1. Sept. 2026

    Co-Founder & Lead Product Engineer · JAC Studio

    I lead product and technology: architecture, full stack development, PostgreSQL, automation, CI/CD and delivery quality.

  2. Sept. 2025

    Full stack product developer · Independent

    I design and build complete web systems remotely: flows, interfaces, APIs, data, testing and deployment.

Education

  • Since 2023

    Full Stack training · Coderhouse

    Frontend and backend development training, in progress. Continuous learning applied to projects.

Contact

Let's talk

Let's discuss product, development or a collaboration. Business websites and systems are handled through JAC Studio.

What happens next

  1. I read your message and reply myself within a few business days.
  2. We review the context, needs and scope.
  3. We arrange a conversation and agree on the next step.

This is where I'll reply.

What you need, what you want to achieve and the context. A short overview is enough.

Reply within a few business days

I only use your details to reply to you. I don't share them or add you to any list.

Professional profiles