Barcelona, Spain
Agustin LopezFull Stack JavaScript Developer
I build scalable web & mobile products with React, Next.js and Node.js.
// about
Who I am
Full Stack JavaScript Developer with 3+ years building scalable web and mobile applications using React, Next.js and Node.js.
Currently leading development at agriNews, owning the full product lifecycle from architecture design to production deployment.
Strong focus on performance, scalability and business impact — improving system performance and handling high-traffic APIs.
// experience
Where I've worked
Lead Full Stack JavaScript Developer
2024 — PresentagriNews (Grupo de comunicación agriNews SL)·Barcelona, SpainCurrent
- ▹Led development of cross-platform mobile apps (iOS & Android) with React Native, incl. auth and push notifications.
- ▹Owned end-to-end product lifecycle: architecture design, development and deployment.
- ▹Designed scalable REST APIs with Node.js and Express, cutting response times 30% and handling 1,000+ req/min.
Full Stack Developer (React / Node)
2022 — 2024Tecnosapiens·Buenos Aires, Argentina
- ▹Built scalable REST APIs with Node.js and Express using JWT auth and security best practices.
- ▹Developed frontend apps with React and Next.js, applying SSR and performance optimizations.
Front-End Developer (React)
2022 — 2022Escribanía Bustamante Zambon·Córdoba, Argentina
- ▹Built responsive, accessible interfaces with React and Material UI.
- ▹Collaborated in agile environments delivering features aligned with client requirements.
// projects
Selected work
FeaturedTimpzo
Live ↗Scalable multi-tenant SaaS booking platform for service businesses — appointment scheduling, availability and role-based access.
Next.jsNode.jsPostgreSQL (Neon)Multi-tenantRBAC
// skills
Toolbox
Frontend
ReactNext.jsReact NativeTypeScript
Backend
Node.jsExpressREST APIs
Databases
PostgreSQLMongoDBSQL
Tools
GitCI/CDFirebaseVercel
Concepts
Scalable ArchitecturePerformanceAPI Design
// contact