ABOUT ME.

Senior Full-Stack Developer with 8+ years delivering high-performance, user-centric applications across web, mobile, and desktop. Expert in React, Next.js, and TypeScript; adept with Node.js and Python, designing scalable APIs and cloud-native architectures (AWS Amplify, Cognito, Lambda, GraphQL). Led payment platforms and fraud-resistant integrations (3DS, PayPal, Nexio, Kount, WorldPay) and migrated REST services to GraphQL to accelerate response times and streamline data access. Known for rigorous testing (Jest, pytest), clean architecture, and cross-functional collaboration to ship secure, scalable solutions aligned with business goals.

Ernesto Nuñez Marrero, Full Stack developer in Santo Domingo, Dominican Republic

BASED IN

Santo Domingo, Dominican Republic

MY JOURNEY

01

The Foundation

Started my coding path with low-level systems and strong fundamentals, building a deep understanding of how software interacts with hardware.

  • C/C++ Fundamentals
  • Algorithm Design
  • Memory Management

02

Frontend Specialization

Fell in love with the visual side of the web. Focused on React, motion design, and building polished interfaces that scale.

  • React & Next.js
  • Animation (GSAP)
  • UI/UX Architecture

03

Full Stack Mastery

Bridging the gap between beautiful frontends and robust backends. Currently building distributed systems and cloud-native apps.

  • Node.js
  • PostgreSQL / Redis
  • AWS Cloud Architecture

PHILOSOPHY & METHODOLOGY

I believe software should be as delightful to read as it is to use. My approach centers on clarity, performance, and long-term maintainability.

Performance First

Optimizing the critical rendering path and aiming for near 100/100 Lighthouse scores.

Scalable Design

Building modular systems that grow with business requirements.

CORE METHODOLOGY

SOLID DRY ATOMIC

PERSONAL INTERESTS

RETRO GAMING

OPEN SOURCE

SYNTH DESIGN

FILM PHOTOGRAPHY

UNIX RICE

LET'S BUILD THE FUTURE TOGETHER.