Eduardo Lopez

I’m a Fullstack Developer focused on building scalable systems using React.js, Node.js, and PostgreSQL. I’m passionate about clean architecture, maintainable code, and delivering high-performance solutions, especially where performance and reliability directly improve user outcomes.

At Eficasia Contact Center, I built responsive CRM forms with React.js capturing 500+ daily records, and I optimized data validation to reduce errors by 70%. I engineered survey systems processing 2,500+ submissions monthly, optimizing response time to 300ms with a Node.js backend, and I developed 5+ knowledge base systems for 200+ service stations, cutting support response time by 60%.

Previously at Aspel de México, I orchestrated feature development across 6+ projects, reducing time-to-production by 35% with agile practices. I also architected APIs with NestJS/PostgreSQL for 10K+ daily requests at sub-300ms latency, migrated a legacy website to Next.js/Node.js to reduce load time by 60% and increase organic traffic by 45%, and automated billing workflows handling 500+ daily transactions while reducing processing time by 75%.