
David Antonio
Web Developer specializing in React and Nextjs
Habilidades

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Portfólio
Experiência profissional
DESARROLLADOR WEB
Freelance Web Designer • Período integral
Feb 2026 - Feb 2026 • 0 mos
Co-developed NextFit, a SaaS platform designed to help gyms manage their daily operations through a centralized digital solution. The platform includes membership management, customer tracking, payment and cash flow management, scheduling, employee management, marketing campaigns, and business reports. I contributed to the development and improvement of the platform, including a major UI redesign, performance enhancements, and landing page improvements focused on usability and SEO. The technology stack includes Next.js, NestJS, PostgreSQL, and Prisma, with Mercado Pago integration for payments.
Desarrollador Full Stack
Freelancing Career • Período integral
Jul 2025 - Feb 2026 • 7 mos
Developed a business landing page and contributed to building a management system for SCARS, an automotive workshop. The landing page was designed to strengthen the workshop's online presence and showcase its services, while the management system helped digitize internal operations and organize business processes. My work combined frontend development, practical functionality, and user-focused design to support the workshop's digital transformation.
Desarrollador FrontEnd
Freelance Web Designer • Período integral
Feb 2025 - Jul 2025 • 5 mos
Worked at Energreen as a Frontend Developer, contributing to the development of digital solutions through interface implementation and hands-on coding. I was responsible for developing part of the user interface, writing code, and supporting the improvement of existing systems to enhance usability and performance. My work involved implementing UI components, translating requirements into functional interface elements, and helping optimize internal processes through practical software solutions. I also provided technical support, allowing me to understand system behavior, troubleshoot issues, and contribute to reliable day-to-day operations. This experience strengthened my frontend development, problem-solving, and technical support skills while giving me practical experience building and improving digital products.