Projects 4 Experience StackSoftware, product, and business I work from problem framing to production, connecting architecture, product, design, and business to build software that can evolve.
Featured repositories Updated in 2026 Carlos Ferrer Online — Four Eras of the Web A curriculum and portfolio interpreted through four eras of the Web.
A personal project: mine end to end, from the content model to the four interfaces.
Next.js React TypeScript CSS Tailwind CSS Vitest PlaywrightView project Underground PB A platform for Paraíba’s independent scene, with a show calendar, bands, releases, news, and scene history.
An original project: I conceived, designed, and built the platform, and still maintain it, at Byte Criativo.
View project Festival Alumiô Website for the music, art, and gatherings festival in João Pessoa’s Historic Center, with the program, cultural circuit, and memories of past editions.
Website development for Festival Alumiô.
Next.js React TypeScript CSS PlaywrightView project Byte Criativo — the software house’s digital presence Presents services and portfolio, and walks visitors through to the conversation about their project.
An original project: I conceived, designed, and built my own company’s site.
View project I lead the software house while remaining hands-on: I work directly across strategy, architecture, product, design, and engineering.
Product strategy and architecture Backend, frontend, and infrastructure UI/UX and application design Automation and integrations Custom solutions and continuous evolution I run Jampa Ruby, Paraíba’s local Ruby and Ruby on Rails community: I organize its meetups and talks, and take the stage as a speaker too.
Organizing meetups and talks Speaking on Ruby and Ruby on Rails I built web applications for academic journals, events, and scientific groups, and contributed plugins to Public Knowledge Project software.
Scholarly publishing applications Plugins for OJS, OMP, and OPS (PKP) REST architecture and APIs Java, JavaScript, SQL, HTML, and CSS Backend Web applications, APIs, and business rules.
Ruby Ruby on Rails Python Django REST APIs Web architecture Frontend Accessible, responsive, product-led interfaces.
JavaScript TypeScript React Next.js HTML CSS Tailwind CSS HTMX Data Application data modeling and persistence.
Infrastructure / DevOps Pragmatic delivery, observability, and operations.
Linux Git GitHub Docker Cloudflare Render Vercel AI & automation AI applied to real products and workflows.
OpenAI APIs LLMs AI Agents LangChain AI-assisted development AI integrations Product From problem and prototype to production solution.
Product architecture UI/UX Application design Prototyping Automation Integrations Postgraduate degree in Software Engineering Faculdade Focus
2023 Web Development bootcamp Le Wagon
2022 Associate degree in Systems Analysis and Development Universidade Estácio de Sá
2021 Bachelor of Laws Centro Universitário de João Pessoa (UNIPÊ)
2016 README.md Four interfaces. One content model. One codebase.
Next.js · React · TypeScript · CSS · Vitest · Playwright
contribution graph (decorative)