Sophia Castillo
Full-Stack
Engineer
Web Developer
I help entrepreneurs, content creators, and businesses turn their ideas into something extraordinary. From sunny California, I team up with clients to whip up smart code and stunning designs. Let’s make something awesome together—working with me means you get a partner who’s all about creating cool stuff and seeing results. Pinky swear!
Working remotely, based in SoCal
My journey into tech started in an unexpected (and kind of magical) way — I began my career as an actor, where I fell in love with storytelling. That same love eventually led me to discover coding, and suddenly I had a new creative outlet: building beautiful, functional things on the web. That pivot from performance to programming gave me a unique edge — blending creative intuition with technical expertise.
As a full-stack developer, I offer end-to-end solutions — from intuitive front-end design to scalable back-end architecture. Whether it’s building custom websites with React, Next.js, and Tailwind CSS, developing mobile apps with React Native or Flutter, or setting up a powerful Shopify or Squarespace store, I make sure every product I touch is fast, secure, and visually compelling.
Suprise!
Hi I'm Joey! I love to appear on my human's video-calls. She always tries to be professional with clients, but I do love to surprise her.
What I Offer
Custom Design & Development
- Fast, SEO-optimized, and mobile-friendly
- Built with performance and scalability in mind
- Includes tools like CMS, booking systems, and more
Shopify & Squarespace E-Commerce
- Custom Shopify storefronts using Storefront API
- Squarespace setup and customization
- Product pages, checkout flows, and style alignment
Mobile App Development
- iOS & Android apps from a single codebase
- Great for small businesses, startups, or content creators
- UI/UX focused and performance-optimized
Website Refreshes & Maintenance
- Monthly updates and fixes
- Light branding support: fonts, colors, Canva templates
- Content updates and technical support
Sleek Code.
Great Results.
Welcome to my showcase! Below, you'll discover a diverse collection of projects that embody my commitment to delivering innovative, high-quality solutions. From dynamic web apps to powerful SaaS platforms, each project reflects my passion for turning complex challenges into creative, precise outcomes. These endeavors not only highlight my technical skills but also my dedication to exceeding client expectations. I'm continually evolving, and so is this portfolio—stay tuned for more!
Websites
Carousel Hair Extensions
A dreamy blend of vintage charm and playful pink. Explore premium hair extensions, cozy apparel, and whimsical vibes by Breanna Calle—where beauty meets bold self-expression.
Beatbike
Get inspired to ride with Beatbike’s sleek studio site. Whether you're new to cycling or a seasoned rider, find classes, instructors, and motivation all in one place.
Sofi Tukker: Developer Edition
A detailed recreation of the Sofi Tukker site using Next.js and TailwindCSS. This project blends precise design execution with vibrant, music-inspired energy.
Disney+ Clone
An interactive movie app powered by OpenAI, Azure, and TMDB. Explore films with real-time AI features and a clean, modern interface built for discovery.
girl in red
An animated artist profile built with Next.js and framer-motion. This project fuses music, art, and storytelling into an immersive digital experience.
StellaFlex Fitness Blog
A wellness-focused blog using Next.js and Sanity. Features real-time previews and flexible content editing for creators passionate about health and fitness.
SaaS Projects
File Uploader
Upload your PDFs and let our chatbot handle the rest—summarize, answer questions, and make static documents interactive. Boost productivity with effortless, AI-powered conversations.
Your Questions, My Expertise
