Kristian Leonel

Experienced in designing and implementing production-ready web systems, integrating backend and frontend solutions with a strong focus on scalability, security, and maintainability.

• › Design and develop complete system architectures, defining business logic and scalable structures for full-stack applications.
• › Build backend services and RESTful APIs using Python, including authentication systems, middleware layers, and efficient request handling.
• › Develop modern, responsive interfaces using Astro, React, HTML, CSS, and Tailwind CSS, optimized for performance and user experience.
• › Apply web security best practices to mitigate vulnerabilities such as XSS, CSRF, and SQL injection.
• › Configure server infrastructure and reverse proxies to optimize deployment and service communication.

Ray tracing is a cutting-edge rendering technique that simulates the physical behavior of light to generate highly realistic and visually compelling 3D scenes.

• › Developed a ray tracing engine capable of rendering geometric primitives and realistic material textures, achieving accurate lighting, reflections, and shading effects.
• › Architected a scalable layered system that decouples rendering logic from the application layer, enabling seamless integration across multiple interfaces such as CLI tools and desktop applications.

I collaborated on an open-source project to visually improve my faculty's website.

I developed a multiplayer desktop chess game.

Digital image processing software built with Java, utilizing the Sobel Operator and multi-threading for performance.

• › Structured with MVC architecture to ensure code modularity and separation of concerns.

A high-performance personal website built from scratch using Astro’s island architecture.

• › Implemented Static Site Generation (SSG) to deliver pre-rendered HTML, ensuring near-instant load times.
• › Built a library of reusable components with TypeScript and Tailwind for maintainability and consistency.

Contributing to a web platform for IIMAS, enabling remote access for programming and simulating programmable circuits.

• › Developing the frontend interface using React in collaboration with UI/UX designers.
• › Building robust RESTful APIs with the backend team using Django.