I'm Juan Barrios
A Senior Front-End Developer with over 6 years of experience
From UI to backend, I build solutions. Full-stack expertise across platforms. Problem-solver by design. Let's connect now.
About me
- Based in Venezuela
- I'm 25 years old
- My native language is Spanish
- I have a C1 level in English
- I believe in God and I love him
- I love to learn new things
+50
Apps and web sites made with the best practices
+6
Years of experience helping people and companies with my support
User Experience Design©
E-COMM. WWW. 🛒 🤩 Experience
M🛸tion & interactions ⇢ Design
Branding & identify
©'25
✹
Experience (6 Years - 9 Months)
Freelancer
Sep 2019 - Present
FullStack Developer
Freelancer
Sep 2019 - Present
PARQ
Aug 2025 - Present
Front End Developer
PARQ
Aug 2025 - Present
Fithub
Aug 2024 - Jun 2025
Front End Developer
Fithub
Aug 2024 - Jun 2025
Monoma
Mar 2024 - Jul 2024
Front End Developer
Monoma
Mar 2024 - Jul 2024
ASP Consulting
May 2023 - Feb 2024
React Native Developer
ASP Consulting
May 2023 - Feb 2024
Tauros
Nov 2019 - Feb 2023
Front End Developer
Tauros
Nov 2019 - Feb 2023
Freelancer
FullStack Developer
- Providing website or mobile app creation services, consulting and classes, I have created more than 50 websites as a freelancer using Next with Tailwind
PARQ
Front End Developer
- As a full-stack developer, I am responsible for improving and maintaining the back-end microservices built with NestJS and Postgres.
- I dockerized a local environment for each project and connected them to one another.
- I also develop and support various front-end projects using Angular and Next.js.
- Additionally, I support the mobile application, which is used on point-of-sale devices and tablets, using React Native.
Fithub
Front End Developer
- Provided continuous support and enhancement for the company's dynamic e-commerce website.
- Optimized page performance by implementing lazy loading for images (converted to WebP) and requests (using Intersection Observer), and converting several libraries to native code.
- Emulated a Static Site Generator with an Express server to improve performance and added custom SEO
Monoma
Front End Developer
- Developed a CMS from scratch using React, Tailwind CSS, and Vite, prioritizing testing by implementing Jest and Cypress tests and optimizing performance.
- Developed a robust landing page for another client in three days, including desktop and mobile designs and animations, using Next.js, Tailwind CSS, and TypeScript.
ASP Consulting
React Native Developer
- Led the independent development of three mobile point-of-sale applications for diferent countries.
- Implemented a native bridge in React Native to integrate Banesco SDK for payments and Bluetooth printing for invoices.
- Updated an existing university application, modernizing its libraries and design.
- Responsible for launching all applications to app stores.
Tauros
Front End Developer
- Encompassed frontend development, troubleshooting, and implementing new features, primarily utilizing React and Material UI for the user interface.
- Participated in the development of a separate exchange project using Next.js, involving communication with the main project and gaining knowledge in micro frontends.
- Used Storybook for component development and Jest for unit testing in the exchange project.
- Collaborated on mobile application support in React Native, implementing new designs and functionalities and ensuring good development practices.