Zaqueu Nilton

I’m a full-stack developer passionate about creating modern, functional solutions. I build with JavaScript, TypeScript, Node.js, and Kotlin, with a strong focus on scalable, reliable systems.

At Elânia Moda Íntima, I architected a digital catalog using Next.js, Turso, and Cloudflare Workers. I also developed a mobile management application (React Native/Expo) for real-time inventory, pricing, and product control.

In my personal work, I built the WhatsApp Bot back end by developing a Tic-Tac-Toe engine in C integrated into a Node.js environment. I optimized communication with custom JSON parsing to support high-performance logic handling.

I’ve shipped AI and product-focused projects like an AI Token Chatbot with multi-model support and a USDC-based credit system on the Base network, including encrypted chat history. I also created Lou, an e-book reader using the Gutendex API with EPUB reading, highlight/annotation tools, and cloud-synced progress. Through open-source libraries like Lowdeep and Isthor, I focus on developer experience and type safety with Zod, plus resilient patterns such as self-healing LLM validation and reactive UI updates.