Building impactful web experiences for global audiences.
With over 5 years of expertise, I bring innovation, adaptability, and a user-focused approach to every project.
Recent Projects
Global Streaming Community
A groundbreaking platform connecting musicians with global audiences. Built with Next.js, Spring Boot, and PostgreSQL, the system enables artists to promote their tracks, analyze engagement, and grow their reach. Hosted on DigitalOcean, the project also includes a browser extension to automate playback and engagement.
Role
Fullstack Developer, Project Manager
Deliverables
Web Development, API Integration, Web Extension Development
Company
Freelance
Movistar Prepaid Packages Col
A high-performance platform designed to efficiently manage Movistar's prepaid packages, serving over 1 million monthly users. The platform enables users to seamlessly check, purchase, and manage data, minutes, and SMS packages. The project included a full migration from React to Next.js, enhancing performance and user experience. The frontend interacts with robust backend services built in Spring Boot and C#, ensuring real-time synchronization with Movistar's internal systems. Additionally, the platform is fully mapped in Google Analytics for detailed monitoring of user behavior, enabling data-driven strategic decisions.
Role
Front-End Developer, Migration Leader
Deliverables
Frontend in NextJS, Integration with Spring Boot and C# APIs, Full Mapping in Google Analytics
Company
Movistar - Telefónica
Concentrése Movistar Prepaid Col
An interactive experience developed as part of a promotional campaign for Movistar Prepaid Colombia, aimed at attracting new customers and engaging existing ones. The game challenges users to match all pairs of cards in the shortest time possible to compete for an iPhone. Built with Next.js, the platform delivers optimal performance and a seamless user experience. The interface was thoughtfully designed to be mobile-friendly and visually engaging. The solution is hosted on Movistar's reliable infrastructure and fully integrated with Google Analytics to track performance and user engagement.
Role
Front-End Developer
Deliverables
Memory Game in NextJS, Google Analytics Integration
Company
Movistar - Telefónica
What others have to say
Joan, excellent work! Thank you for taking on challenges with the best attitude and for believing that everything is possible 🙌🏽 Your motivation within the team inspires us to improve and grow. You are amazing 👊🏼 Joan Sebastian #recognition What would we do without you and your #greatteamwork?
Grace Villaquiran
Product Owner - Telefónica Colombia
I want to express my heartfelt congratulations for the excellent work done in developing our website. Your dedication, professionalism, and attention to detail have exceeded our expectations. Every aspect of the design and functionality reflects an exceptional level of quality. I greatly appreciate your commitment and effort to understand our needs and translate them so creatively and effectively....
William Viera
CEO - Global Streaming Community
Joan! I acknowledge the great work you have contributed to the team. Every challenge that comes your way has been handled and solved seamlessly. You have demonstrated remarkable professionalism and a strong sense of ownership with our company. Thank you for your excellent developments!
Juan Ballesteros
Senior Developer - Telefónica Colombia
Working with you has been an exceptional experience. The websites for Jurídicos Asociados and Abogados Cali exceeded all our expectations, combining professional design with flawless functionality. Thanks to your dedication and vision, we now have platforms that perfectly reflect our identity and services.
Jorge Cediel
Lawyer - Jurídicos Asociados
Joan is an exceptional professional who has transformed our online presence. The JJ Security website is now a powerful marketing tool that reflects our mission and values. His user-centered approach and ability to translate our ideas into effective digital solutions have been fundamental to the success of our business.
Jairo Jimenez
Owner - JJ Security Group
Joan, excellent work! Thank you for taking on challenges with the best attitude and for believing that everything is possible 🙌🏽 Your motivation within the team inspires us to improve and grow. You are amazing 👊🏼 Joan Sebastian #recognition What would we do without you and your #greatteamwork?
Grace Villaquiran
Product Owner - Telefónica Colombia
I want to express my heartfelt congratulations for the excellent work done in developing our website. Your dedication, professionalism, and attention to detail have exceeded our expectations. Every aspect of the design and functionality reflects an exceptional level of quality. I greatly appreciate your commitment and effort to understand our needs and translate them so creatively and effectively....
William Viera
CEO - Global Streaming Community
Joan! I acknowledge the great work you have contributed to the team. Every challenge that comes your way has been handled and solved seamlessly. You have demonstrated remarkable professionalism and a strong sense of ownership with our company. Thank you for your excellent developments!
Juan Ballesteros
Senior Developer - Telefónica Colombia
Working with you has been an exceptional experience. The websites for Jurídicos Asociados and Abogados Cali exceeded all our expectations, combining professional design with flawless functionality. Thanks to your dedication and vision, we now have platforms that perfectly reflect our identity and services.
Jorge Cediel
Lawyer - Jurídicos Asociados
Joan is an exceptional professional who has transformed our online presence. The JJ Security website is now a powerful marketing tool that reflects our mission and values. His user-centered approach and ability to translate our ideas into effective digital solutions have been fundamental to the success of our business.
Jairo Jimenez
Owner - JJ Security Group
About
I'm Joan Oviedo - a skilled web developer crafting impactful digital experiences from Cali, Colombia.
Hey there! I'm Joan Oviedo, a freelance web developer based in Cali, Colombia. With over 5 years of experience, I specialize in building dynamic and user-centered websites that leave a lasting impression. My expertise includes React, Next.js, and other modern technologies to bring your digital vision to life.
From sleek portfolios to robust applications, I ensure to exceed client expectations by delivering responsive, SEO-friendly, and high-performing websites. I prioritize understanding your goals to create solutions tailored to your needs.
Living in Cali, I draw inspiration from its vibrant culture and dynamic tech scene. Let's collaborate and bring your ideas to life through exceptional digital experiences!
Work Experience
Telefónica Colombia (through Stefanini, DISC IT, and VASS)
INDRA - ENAIRE
Prevalentware SAS
Grupo AFL
GEMDA
El Roble
Skills
Here, I showcase the tools and programming languages I work with. From React to TypeScript, each skill reflects my ability to deliver robust and dynamic digital solutions.
Next.js
HTML5
CSS3
JavaScript
TypeScript
React
Node.js
Python
Azure
Docker
Jest
Git
Figma
Tailwind CSS
