Eduardo Lopez
Full Stack Software Engineer. Building scalable, modern, and efficient software solutions.
What I Do
I specialize in creating high-performance web applications from front to back, focusing on clean architecture and user-centric design.
Frontend Development
Crafting responsive and dynamic user interfaces with modern frameworks like React and Next.js.
Backend Engineering
Building robust server-side logic and APIs using Node.js, Nest.js and Java
Cloud & DevOps
Deploying and managing scalable applications on cloud platforms like AWS and Vercel.
Featured Projects
Transportation Module | GroTool LLC
A platform to manage transportation logistics, keeping track of each car's status, maintenance schedules and documents due dates. Additionally, it includes a driver management system to make a daily follow-up of each driver's activities.
- Authentication
- Realtime data synchronization
- Responsive design
Currency Exchange Module | Bioonix
Developed a currency exchange module that enables users to convert funds at optimal rates, dynamically sourcing the best prices based on specific search criteria.
- Data encryption
- Realtime currency prices conversion
- Interactive Dashboard
Services Tracker | Tutenlabs
Engineered a real-time tracking system using the Google Maps API to provide customers with live employee location updates and accurate arrival estimates.
- Real-time tracking system
- Location suggestions
- Google Maps integration
Invoice Digitization | Intelix Synergy
Invoice digitization system that sends bulk invoices to different customers and scans barcode to extract information from the invoices.
- Bulk email delivery
- Barcode scanning
- Bulk invoices scanning
My Experience
Backend Developer
Epayco By Davivienda | Medellín, Antioquia, Colombia
- Developed real-time antifraud systems for fintech payment platform using NestJS, TypeORM, MySQL and MongoDB.
- Implemented transaction validation engines with whitelist/blacklist controls and rule-based filters for fraud detection.
- Utilized Redis for optimized caching and performance in high-volume transaction processing.
- Applied Chain of Responsibility and Factory patterns with SOLID principles to build scalable, maintainable solutions.
Full Stack Developer
GroTool, LLC | Florida, USA
- Successfully migrated the SaaS platform from Angular to React, improving the user experience and increasing scalability to reduce maintenance time.
- Engineered and deployed a comprehensive file and image management architecture utilizing AWS S3 to handle high-volume digital assets. This resulted in optimized load performance for end-users and enhanced system scalability.
- Developed a highly available report generation module using NestJS (TypeScript) and a modular architecture. The implementation improved data delivery efficiency.
Backend Engineer
Bioonix | Panama City, Panama
- Developed a user authentication system using OAuth, NestJS, and MongoDB.
- Created an asset conversion module to ensure optimal conversion rates from currency to crypto, based on user preferences.
- Reduced endpoint response times from 1 minute to 1 second by implementing caching strategies and optimizing database queries.
Full Stack Developer
Tutenlabs | Santiago, Chile
- Improved product quality and performance by implementing unit and stress testing, achieving over 85% code coverage.
- Contributed to the development and redesign of the SaaS platform using a micro-frontend architecture, enhancing modularity and reducing cross-team dependencies.
- Built a dynamic survey system, enabling clients to gather direct feedback from their customers.
Application Analyst
Intelix Synergy | Valencia, Venezuela
- Digitized documents and integrated barcode scanning for bulk email delivery, improving processing time and reducing human error.
- Maintained and resolved issues to ensure platform quality and stability.
- Managed databases by creating scripts to regularize and clean data across various client schemas.
Tech Stack & Tools
The technologies and tools I use to bring innovative and scalable projects to life.
Frontend
Backend
Herramientas y Otros
Let's Work Together
Do you have a project in mind? I'd love to hear about it. Complete the form and I'll get in touch with you soon.
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