Enrique Ferreiro

UCI, Cuba

Designed a configuration module for a food management system used by 100+ users.

• Reduced code duplication by ~30% with modular, reusable components.
• Improved data reliability (~25% fewer processing errors) with robust validation.
• Built real-time power consumption dashboards, cutting decision-making time by ~20%.

Remote

Built a video marketing platform with real-time lead capture and automated email notifications.

• Drove a 35% increase in lead conversion with real-time capture and notifications.
• Cut lead-generation latency from ~2.8s to under 800ms (~70% faster) on a multi-tenant architecture.
• Reduced feature development time ~40% with a component-based, scalable state architecture.

Remote

Engineered an automated inventory management system with real-time analytics for 1,000+ stock items.

• Built data-driven dashboards with Prisma, cutting manual reporting time by 50%.
• Enforced DDD practices, ensuring 99.9% data integrity during peak load.

Remote

Built a full e-commerce platform supporting 1,000+ products and concurrent users with end-to-end checkout.

• Integrated Stripe payments, cutting failed transactions by ~20%.
• Added Google OAuth, reducing onboarding steps by 40%.
• Applied SOLID and Clean Architecture to decouple layers, accelerating feature delivery by ~25%.

Remote

Designed and launched a real-time towing service platform supporting 1,000+ concurrent users with live driver tracking.

• Improved notification speed by ~50% with an event-driven architecture (SSE + Event Emitters).
• Built a bidding system that increased user engagement by ~30%.
• Added multi-language support and push notifications, increasing retention by ~25%.

Remote

Built a web app for managing EV charging stations supporting 500+ users with real-time reservations.

• Cut API response time ~40% by optimizing GraphQL queries and caching.
• Architected with DDD and dependency injection (Brandi), reducing code coupling ~30%.
• Designed a reservation calendar that cut booking time by ~35%.

Remote

Architected a high-performance enterprise system using DDD and CQRS for scalability and maintainability.

• Built server-rendered interfaces with Next.js 15 App Router, improving SEO and load times.
• Integrated SSE for real-time data and robust auth, ensuring 99.9% consistency.
• Streamlined internal productivity by 30% with modular CRUD and dynamic PDF generation.
• Added automated Jest testing and CI/CD via Vercel.