Agustin Castets
Full Stack Developer
About me
I focus on full stack development and UX/UI design, combining the technical side with the visual aspect of projects. I enjoy learning, experimenting, and understanding how things work — from new technologies and programming languages to topics like artificial intelligence, automation, and experience design. I really enjoy the process of building and improving, both professionally and personally.
Work Experience
Full Stack Developer Freelance
Rio Negro, Argentina - Remote
Summary:
Experienced Full Stack Developer working freelance, creating personalized web solutions for various clients. I specialize in the complete development cycle, from UI/UX design to backend implementation and third-party service integration.
Responsibilities:
- Conceive, design, and develop complete web applications, covering both frontend and backend.
- Collaborate closely with clients to transform their ideas into functional and scalable solutions.
- Implement clean and maintainable architectures to ensure the longevity and ease of future project expansions.
- Ensure the security and reliability of applications, protecting user data and transactions.
Achievements:
- Significantly improved user experience and application performance, achieving a 30% reduction in page load times on key projects.
- Successfully integrated various third-party APIs and external services, such as payment gateways, expanding platform functionalities and automating processes.
- Applied best development practices to ensure robust, efficient, and easily scalable code.
Junior Full Stack Developer@
Buenos Aires, Argentina - Remote
Summary:
Developed and maintained web applications using React.js. Collaborated with the team to implement new features and fix bugs. Strengthened my React skills by working on large team projects.
Responsibilities:
- Developed and maintained interactive user interfaces using React.js.
- Collaborated with designers to translate user designs into functional and styled code.
- Implemented agile development practices to improve team efficiency and the quality of the final product.
Achievements:
- Contributed to several major projects, enhancing the functionality and usability of applications.
- Implemented efficient solutions that optimized application performance, resulting in faster load times.
- Received recognition from the team for my problem-solving ability and commitment to code quality.
Projects
A professional, high-performance template for creative digital studios, GSAP animations, and a complete contact system.
- Modern dark design with high-impact scroll-driven animations.
- Full-stack contact system with server-side validation and email delivery.
Larch Agency is a modern, high-end website template designed for marketing agencies, creative studios, and digital professionals.
- Built with Astro and React.
- Integrated GSAP for smooth animations.
A professional, high-performance digital studio template built for agencies and creative teams who want to lead with impact and cinematic visual edge.
- Features cinematic GSAP animations and smooth scrolling with Lenis.
- Fully type-safe content management system.
Skills and Tools
Astro
Docker
CSS
Express.js
Git
GraphQL
HTML
Java
JavaScript
Maven
MongoDB
Nest.js
Next.js
Node.js
PostgreSQL
React
Spring Boot
Spring Framework
Spring Security
Tailwind
Typescript
Astro
Docker
CSS
Express.js
Git
GraphQL
HTML
Java
JavaScript
Maven
MongoDB
Nest.js
Next.js
Node.js
PostgreSQL
React
Spring Boot
Spring Framework
Spring Security
Tailwind
Typescript
Education
Universidad Nacional de Rio Negro
Certifications
- Udemy
- Devtalles
- Devtalles
- Udemy
- Udemy
- Udemy
- Platzi
- CoderHouse
- CoderHouse
- CoderHouse