Simera Professional Key (SPK)

Gerardo Andrés R

Colombia

Senior Frontend Developer

$ 3,200/month

6 yrs exp

Full Stack Developer with 5+ years building scalable web and mobile applications. Specialized in React, Next.js, Node.js, and TypeScript with proven expertise in performance optimization, API integration, and clean architecture. Strong track record delivering production-ready features in fast-paced environments.

Skills

  • CSS
  • CSS3
  • Git
  • HTML
  • HTML5
  • JavaScript
  • MongoDB
  • Node.js
  • PostgreSQL
  • React
  • Typescript
  • JavaScript ES6
  • BackEnd Developer
  • c# Developer
  • ExpressJS
  • Full Stack
  • Full Stack Developer
  • GraphQL
  • Jest
  • React Native
  • ReactJS
  • RESTful APIs
  • Security Best Practices
  • Fullstack
  • Nuxt.js
  • Nest.js
  • Next.js
  • Express
  • Next js
  • Playwright
  • press
  • Express.js
  • REST APIs
  • Full Stach
  • Fullstack developer
  • Tailwind CSS
  • Agile (Scrum, Kanban)
  • Fullstack Development
  • Full Stack Development
  • Type Script
  • SCSS

Gerardo Andrés R

Colombia

Senior Frontend Developer

$ 3,200 /month

Part Time: $ 470/month

6 yrs exp

Full Stack Developer with 5+ years building scalable web and mobile applications. Specialized in React, Next.js, Node.js, and TypeScript with proven expertise in performance optimization, API integration, and clean architecture. Strong track record delivering production-ready features in fast-paced environments.

Skills

  • CSS
  • CSS3
  • Git
  • HTML
  • HTML5
  • JavaScript
  • MongoDB
  • Node.js
  • PostgreSQL
  • React
  • Typescript
  • JavaScript ES6
  • BackEnd Developer
  • c# Developer
  • ExpressJS
  • Full Stack
  • Full Stack Developer
  • GraphQL
  • Jest
  • React Native
  • ReactJS
  • RESTful APIs
  • Security Best Practices
  • Fullstack
  • Nuxt.js
  • Nest.js
  • Next.js
  • Express
  • Next js
  • Playwright
  • press
  • Express.js
  • REST APIs
  • Full Stach
  • Fullstack developer
  • Tailwind CSS
  • Agile (Scrum, Kanban)
  • Fullstack Development
  • Full Stack Development
  • Type Script
  • SCSS

Senior Frontend Developer

Seeed
January 2023 - present

• Developed scalable frontend applications using React and TypeScript in production environments • Built and optimized Next.js components with CMS integration, improving Core Web Vitals and SEO • Implemented reusable design system components using Tailwind CSS and modern UI patterns • Integrated REST APIs with proper error handling and authentication middleware • Improved application performance through code optimization and best practices • Collaborated with backend teams to ensure seamless data flow and API integration

Full Stack Developer

Freelance
January 2022 - present

• Built and maintained full-stack web applications using React, Next.js, Node.js, and TypeScript • Designed and integrated REST APIs with proper authentication and input validation • Implemented security best practices including JWT authentication and error handling middleware • Created reusable UI components and scalable frontend architectures • Optimized frontend performance and user experience across multiple projects • Translated client business requirements into technical solutions with direct communication

Frontend / Mobile Developer (React Native)

Bitpoint
January 2021 - December 2022

• Developed mobile applications using React Native and TypeScript • Built data-driven dashboards with React.js and state management • Integrated APIs and managed application state for dynamic interactions • Contributed to performance improvements and enhanced user experience

Smart Scores

Communication
80
Role Fit
95
Adaptability
80
Problem-solving
90
Simera English
80
Professional Presence
80
Drive/Initiative
90

Smart Skills

beta