Sophia Castillo
Full-Stack
Engineer
Web Developer
I help entrepreneurs, content creators, and businesses turn their ideas into something extraordinary. Operating out of D.C., 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!
Currently working remotely from Washington, D.C.
My journey as a software engineer started in a very unexpected way. I began my career as an actor, where I fell in love with storytelling, creativity, and human connection. Just like in acting, web development demands discipline, curiosity, and constant learning — and that’s what pulled me in. Now, I bring that same creative energy into my work as a developer, blending imagination with technical skill.
Languages: JavaScript, TypeScript, Dart, Python
Frontend: React.js, Next.js, React Native, Flutter, Tailwind CSS
Backend: Node.js, Express.js
Databases & Auth: Firebase, MongoDB, NoSQL
Cloud & DevOps: AWS
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
Rachael Johnson - HMUA
Rachael Johnson is a Los Angeles-based hair & makeup artist offering expert cuts, color, blowouts, wedding packages, and makeup for photoshoots, glam, SFX, and special events.
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.
SaaS Projects
StellaFlex Fitness
A wellness-focused blog using Next.js and Sanity. Features real-time previews and flexible content editing for creators passionate about health and fitness.
Erin Jade's Artist Page
Step into the world of Erin Jade, a Los Angeles-based visual artist. This page is a space to connect more personally with Erin and the heart behind her art.
File Uploader
Upload your PDFs and let our chatbot handle the rest— summarize, answer questions, and make static documents interactive.
You’ve Got Questions — I’ve Got the Code
