About Me
Here's a bit more about me and what I bring to the table
My Story
I'm a frontend software engineer who loves to design and build innovative web applications using various technologies. My journey started as an analyst woring with developers on various projects and my curiosity quickly became a passion for creating digital experiences that make a difference.
When I'm not coding, you can find me exploring new technologies, contributing to open-source projects, or enjoying a classic film with my "calm" dogs.
I believe in writing clean, maintainable code and creating user experiences that are both beautiful and functional. Let's build something amazing together!
Clean Code
Writing maintainable, scalable code
UI/UX Design
Creating beautiful interfaces
Full Stack
Frontend and backend development
Responsive
Mobile-first approach
Featured Projects
A collection of projects showcasing my skills in frontend development, full-stack applications, and mobile development.
eBay AI Listing Generator
2025-09AI-powered eBay listing generator that takes product photos and outputs professional descriptions, safety details, and market-based pricing (React, Node.js, AWS Rekognition, OpenAI, eBay API).
Twitter Clone
2025-08A basic clone of the famous web app Twitter. Features include user creation and authentication, guest sign in, ability to create and like tweets, ability to upload images, ability to make comments, and dynamic page updates.
Library
2025-08Library is an E-commerce website mockup. The site offers a variety of features including multiple pages, dynamic routing, sorting options, a fully functional cart, and responsive design.
Ultraverse
2025-07The final product of my internship with Frontend Simplified. This internship consisted of converting a static website into a dynamic application using various Node.js libraries such as Axios, Owl Carousel, and Animate on Scroll. Maintained version control with repository branches and pull requests on github.
Coming Soon
TBDMobile Apps coming soon.
Skills & Technologies
The tools and technologies I use to bring ideas to life
frontend
backend
tools
languages
Experience
My professional journey and the impact I've made
Frontend Developer Intern
Skinstric A.I.
Developed responsive React workflows for data capture, image processing, and demographic analysis.
Key Achievements:
- Converted Figma designs into responsive React components
- Implemented multi-step workflow (data capture → image upload → results)
- Integrated Google Cloud Function APIs for data and image processing
- Added client-side form validation and error handling
- Enabled image capture via webcam/mobile
- Displayed AI demographic predictions with editable results
Frontend Developer Intern
Frontend Simplified
Built a responsive React.js NFT platform with Firebase authentication, Firestore database, and REST API integration to display and manage 1,000+ digital assets, achieving fast load times and secure user access.
Key Achievements:
- Developed responsive React components for NFT display
- Integrated REST APIs with Axios for NFT metadata retrieval
- Implemented Firebase Authentication with 500+ registered users
- Managed user data with Firestore Database
- Built 15+ reusable React components with Redux & Material-UI
- Deployed Firebase Cloud Functions for backend operations
- Reduced server response time by 30% for metadata retrieval
- Created mobile-responsive layouts (Flexbox & Grid, 98% compatibility)
- Collaborated in Agile workflow, resolving 40+ Jira tickets in 3 months
- Used Git for version control in a 3-person dev team
Get In Touch
Have a project in mind or just want to chat? I'd love to hear from you!
Let's work together
I'm always interested in new opportunities and exciting projects. Whether you have a question or just want to say hi, I'll try my best to get back to you!
Jnrosero@gmail.com
linkedin.com/in/Jonnyrosero
GitHub
github.com/Jrosero21