Building innovative web solutions with modern technologies. Passionate about creating seamless user experiences and scalable applications.
See My PortfolioAbout Me
I'm Leo De Leon, a Computer Information Systems major at Illinois Institute of Technology, passionate about full-stack web development and scalable, user-centered applications. Skilled in Java, Python, JavaScript, and modern frameworks, I focus on responsive design, database optimization, and problem-solving that turns complex challenges into impactful solutions.
Full-Stack Developer
Experienced in building responsive web applications and e-commerce platforms
Problem Solver
Strong foundation in algorithms, data structures, and system design
Team Leader
Proven leadership through volunteer work and collaborative projects
Innovator
Passion for building creative, real-world solutions.
Projects
A collection of my recent work showcasing various technologies and problem-solving approaches
Featured Projects
March 2025 - Present
•Built a responsive e-commerce website for a family business with 100+ product listings.
•Designed a modern UI inspired by leading retail brands (Gymshark, Uniqlo, Off-White) with focus on scalability, accessibility, and mobile-first design.
•Integrated Stripe Checkout for secure online transactions and a seamless payment flow.
November 2024 - October 2025
•Built a fantasy football web app prototype with roster management, draft lobby simulation, player stats, matchups, and league standings, designed to improve NFL Fantasy's user engagement.
•Deployed on Vercel using Next.js, Tailwind CSS, and JavaScript, pitched as a platform upgrade concept to rival Yahoo/ESPN fantasy apps.
Supporting Projects
Nov 2024 – Dec 2024
- • Built a clean, responsive website to showcase professional sneaker restoration services
- • Highlighted before/after visuals and service details with a user-focused layout
Jun 2023 – Aug 2023
- • Designed and developed a travel guide site promoting cultural insights
- • Prioritized accessibility and responsive design for desktop and mobile
Coursework Highlights
- • Student System (Java) - Built a comprehensive student management system with CRUD operations
- • ML Housing Price Predictor (Python) - Developed machine learning model to predict housing prices
- • JavaFX Converter - Created GUI application for unit conversions
- • Bash Automation Scripts - Automated system tasks and file management
- • Data Structures Implementation (Java) - Implemented various data structures from scratch
Skills
Technologies and tools I work with to bring ideas to life
Languages
Frameworks & Tools
Databases
Core Competencies
Collaboration & Design Tools
Education
Illinois Institute of Technology, Chicago, IL
Expected Graduation
December 2025
Minor
Internet Application Development
Relevant Coursework
Certifications
- IBM Z Xplore (Mainframe Fundamentals & Advanced) - In Progress, 2025
- HubSpot CMS for Developers II - Coursework Completed, 2025
Get In Touch
I'm always open to discussing new projects, opportunities, or collaborations