Step into the world of web development and discover how ideas transform into impactful digital solutions. Join me on this journey where technology and creativity come together to bring unique projects to life.
Creating bespoke web applications for various projects, from landing pages to complex platforms, ensuring a seamless user experience and optimal performance.
Maintenance, support, and optimization services to keep applications up-to-date, secure, and adaptable to new technological and business needs.
Developing applications with scalable architectures, optimizing performance, and ensuring the project can seamlessly expand as it grows.
Comprehensive advice on technology selection, infrastructure planning, and best practices to ensure long-term project sustainability and success.
In web development, having an in-depth understanding of various technologies is essential for building efficient, scalable, and customized solutions. Throughout my career, I have worked with a wide range of tools, languages, and frameworks that enable me to tackle projects of varying complexity. Below, I highlight the key technologies I use to carry out my work.
The essential foundations for building robust and scalable web applications, using technologies such as HTML, CSS, JavaScript, and TypeScript. These are the backbone of the modern web, ensuring accessibility, design, and functionality.
Creating dynamic and engaging user interfaces using technologies like React.js, Next.js, Astro, and Tailwind CSS. These tools enable the development of interactive and optimized applications with a focus on user experience and performance.
Developing business logic and managing data using Node.js, Express.js, Nest.js, Prisma ORM, as well as PostgreSQL and MongoDB databases. These technologies allow for scalable and efficient solutions.
Ensuring code quality with unit testing tools like Vitest, documenting components and APIs with Storybook and OpenAPI (Swagger), and guaranteeing service interoperability with clear and well-structured documentation.
Utilizing technologies like Docker and AWS to create and deploy applications in scalable environments, while also optimizing performance and reliability in the cloud.
Channel Payments · Full-time
As a Senior Frontend Developer, I led the development of a web application using Vite.js and React.js, enabling clients to: - View transactions with basic and advanced filters. - Request refunds easily. - Manage users and assign custom roles. - Configure webhooks triggered by specific events. - Generate and manage API keys. - Create, schedule, and save reports as reusable templates. The dashboard followed a custom design system, adhering to guidelines provided by the design team in Figma. Additionally, I developed a Next.js application to integrate payment methods into other applications. We chose Server Components and Server Actions to provide an added layer of security for sensitive payment data, ensuring client trust. Both projects were built with a scalable design system: - Components created from scratch with TailwindCSS. - Packaging optimized with Vite.js configured for libraries. - Documentation maintained in Storybook, ensuring consistent and collaborative development.
Freelancer
Creation of websites and web applications tailored to each client's specific needs. From static sites to dynamic platforms, each project is designed to deliver functionality and customization. Designing attractive, user-friendly interfaces with a focus on user experience. The solutions implemented ensure accessibility, compatibility, and efficient performance on any device. Using modern technologies to develop scalable and robust projects. Also offering maintenance and updates for existing projects, ensuring continuous operation and alignment with each client's objectives.
Matic.io · Full-time
I worked on the development of applications and libraries to provide a comprehensive payment processing service, enabling our clients’ customers to view transactions, integrate payment gateways, and configure custom webhooks. Applications developed: - Matic Portal: A multitenant platform where our clients could manage transactions, switch between tenants, handle user administration, and more. Each tenant had its own subdomain. - Matic Account: A Single Sign-On (SSO) application that centralized login and shared sessions across all tenants where the user had permissions. - Matic Client: A user interface integrated via an SDK, used by our clients' customers to incorporate payments into their products. Libraries developed: - Matic Core: A UI component library built with MUI and customized to match the company’s brand identity. - Matic SDK: A public library enabling our clients to integrate payments into their products. This SDK validated user-generated keys, embedded an iframe with the Matic Client interface, and handled event-based communication to send resulting information back to the client.
Explore a diverse collection of projects developed with modern technologies, each designed with a focus on performance, usability, and innovation. From dynamic web applications to personal blogs, these projects reflect a commitment to quality, creativity, and seamless user experiences. By leveraging cutting-edge tools and best practices, each project brings unique ideas to life in a functional and engaging way.
Admin dashboard for a multiplatform game, enabling player, clan, item, and update management with real-time metrics.
Nuestras Hojas Amarillas is a personal blog built with Astro.build and TailwindCSS, focusing on performance. DatoCMS streamlines content management for easy creation and editing of posts.
Explore my articles on web development, best practices, emerging technologies, and real-world experiences. I compare tools, share insights, and dive into topics that can help you enhance your skills as a developer.
"Juan brought a wealth of knowledge and experience to our team, contributing to the development of several key projects during his time here. One of Juan’s key strengths is his ability to tackle complex challenges with a thoughtful and analytical approach. He consistently demonstrated a strong understanding of frontend requirements, and his ability to guide team members through intricate technical problems was a valuable asset. Juan’s strong work ethic and determination make him a valuable addition to any team. I believe he can be a strong contributor in any environment."
"Juan is an exceptional collaborator and a highly competent developer with versatile skills. His collaborative nature is reflected in his seamless integration into various areas, demonstrating his competence in development. What stands out about Juan is his visionary approach; he leverages his experience to visualize beyond immediate goals. His commitment to teamwork is commendable, as he not only focuses on his personal goals but also actively contributes to the achievement of team objectives. It has been a pleasure working with Juan, and I confidently recommend him for any project or team that requires a dedicated and forward-thinking professional."
"During all the time I’ve worked with Juan, I’ve learned a lot from him. He has a great ability to learn new things and read documentation, which these days is not common. He has really good skills not only as a Frontend developer but also a lot of knowledge about DevOps and Backend. We worked together on the Frontend side, but in our team, he was also the DevOps leader. In my personal opinion, Juan is a fantastic candidate every team would desire to have."
"Juan is a good teammate and a great developer. He is always willing to collaborate with all areas and has demonstrated capabilities to work in backend, frontend, mobile development, and devops. But he never puts boundaries for himself, always seeing beyond. He is a committed person in a team and is not focused only on his goals but on the entire team's objectives. I am happy to have worked with him."
"Juan is an excellent professional, I have worked with him in numerous projects where he performed the role of frontend programmer and has always provided great value in his role, his work is impeccable, and he always gives his best to achieve results. In this last year, he showed interest in the Devops area and has managed his role quite well, he is self-taught and a fanatic about bringing new ideas to the company. For me, he has been a key piece in my team."
"I have known Juan since before he started his career, and I can only say amazing things about him. He is an excellent workmate, self-taught, competitive, responsible, and above all, a very high-level developer. At work, he always helps his team improve in any way he can. Without a doubt, Juan is one of the best colleagues and friends I have ever had."
"Juan is very responsible and enthusiastic in everything he does. He has a wide range of knowledge and an incredible willingness to learn. It is very nice to have someone so enthusiastic and friendly on any team. I have a lot to thank him for as I learned a lot from him."
"Juan has worked with me on multiple projects over the years. During this time, he has been an excellent developer, highly capable and skilled. A valuable member for every team, who loves challenges, always enthusiastic, highly motivated to expand his knowledge in various fields of his career. Highly recommended."