Freelancers using Xcode in San FranciscoFreelancers using Xcode in San Francisco
Product Designer crafting intuitive and human interfaces.
    $5k+
    Earned
    3x
    Hired
    5.0
    Rating
    20
    Followers
Product Designer crafting intuitive and human interfaces.
Design System for iOS, Web, Mobile + Promo videos
    47
    Followers
Design System for iOS, Web, Mobile + Promo videos
Cover image for Portfolio website design
I designed and
Portfolio website design I designed and built my own portfolio in Next.js, React, and Tailwind so the site itself shows how I work, not just the case studies inside it. It is an interactive site with case studies, about, and blog. Visitors can move through shipped product work, including PetCard, where I helped ship a real product using AI as a design collaborator. The goal was a clean, conversion-minded site that feels simple and makes the work easy to understand. Live site: summerchang.co (http://summerchang.co)
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43
Cover image for You met someone great.
Now you're
You met someone great. Now you're spelling your LinkedIn. Put your card on a NFC chip. They tap. All your social links open in one place. NFCtree. Free on the App.
1
71
Cover image for I rebuilt the NFCtree website
I rebuilt the NFCtree website to match the new app. Same colors, same fonts, same textures, from one design system. ⠀ I explored layouts in Paper first. Looked at how Anchor, ugly.cash (http://ugly.cash) and Klarna handle scrolling. Picked one. ⠀ Then I designed it in Figma. Claude Code turned it into code. Pushed to GitHub. Vercel published it. ⠀ The scroll motion is CSS only. It turns off when reduced motion is on. ⠀ Does your website look like your product?
12
17
1.3K
Product Designer & Engineer | Mobile Apps
    49
    Followers
Product Designer & Engineer | Mobile Apps
San Francisco based Design Engineer / Motion Designer
    $10k+
    Earned
    1x
    Hired
    15
    Followers
San Francisco based Design Engineer / Motion Designer
Cover image for Currently building the Duolingo of
Currently building the Duolingo of habit tracking apps. I'm responsible for all the product development, UI/UX, animations, and front-end.
0
232
Cover image for After exploring a range of sci-fi interface concepts, I shif...
After exploring a range of sci-fi interface concepts, I shifted toward a neomorphic approach to bring in more tactility and depth. The goal was to make the EV display feel less abstract, something more intuitive, approachable, and human to interact with. This evolved into my most in-depth Rive project to date. With more time, I would have expanded it further by adding additional modes and translating the experience into a fully realized 3D scene. The quality of work others submitted was incredibly inspiring and pushed me to think bigger about what’s possible. As a solo designer, I’d love to collaborate with other Rive artists in the future and build on ideas like this together.
1
4
413
Cover image for I've been obsessed with HMI
I've been obsessed with HMI since I was a kid. The level of work I've seen from this contest is on another level. Currently working on a piece that I hope to finish this weekend
5
33
874
Cover image for Juniper AI launch video. #motiondesign
Juniper AI launch video. #motiondesign #2Danimation #UI #animation
1
256
Full-stack developer
    21
    Followers
Full-stack developer
Cover image for Glo is a wellness and
Glo is a wellness and fitness app designed to help users build healthier daily routines through personalized yoga, meditation, Pilates, and fitness classes. The platform provides on-demand classes led by expert instructors, personalized recommendations, guided programs, and wellness content that users can access anytime and across multiple devices.
15
415
Cover image for 🚨 Your database query works…
🚨 Your database query works… but it’s taking 3 seconds? Before rewriting the whole backend, check your database indexes. One missing index can turn a fast query into a slow one as your data grows. Optimize the query before optimizing everything else. ⚡ Have you checked your database indexes recently? 👇
5
407
Cover image for Found a bug that only
Found a bug that only happened in production. The code looked fine locally. The real problem? A missing environment variable. Lesson: Always check your production environment variables before rewriting working code. 😅 Have you ever spent hours debugging something that turned out to be a simple configuration issue?
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547
Cover image for 🚨 A bug that looks
🚨 A bug that looks like a frontend problem might actually be your backend. I once spent time checking UI code, only to find the real issue was an API returning the wrong data. When debugging, I always check the full data flow: Frontend → API → Backend → Database Debug the source, not just the symptom. 🔍 Have you ever found a backend bug while fixing a frontend issue?
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764
Product designer & iOS engineer for polished apps
New to Contra
Product designer & iOS engineer for polished apps
Cover image for Runrate is a personal finance
Runrate is a personal finance app that helps people see their future account balance before bills and paydays hit. I worked across product design, native iOS implementation, account connection flows, forecasting UX, and launch support. The project shows my ability to turn a complex financial problem into a calm, visual consumer app: connecting accounts, modeling upcoming bills, surfacing low-balance moments, and helping users make better timing decisions before money gets tight.
1
66
Cover image for Storyluxe is a social design
Storyluxe is a social design app that made polished, editorial story templates accessible to millions of creators. I worked across product design, native iOS implementation, template and editing workflows, subscriptions, growth, QA, App Store presentation, and release support. The project shows my ability to ship consumer creative tools at scale: translating a strong visual brand into an intuitive mobile editor, refining monetization and onboarding, and supporting a product used by millions.
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65
Cover image for LUXE Studio is a photo
LUXE Studio is a photo and video editing app built around focused tools instead of one crowded editor. I worked across product design, native iOS implementation, subscriptions, QA, localization, App Store presentation, and release support. The project shows my end-to-end mobile product workflow: shaping the app experience, shipping polished editing features, refining launch assets, and supporting the product through release.
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178
Bold design & art across print, code, and concept worlds
Bold design & art across print, code, and concept worlds
Masters in Software Engineering | Python & Data
Masters in Software Engineering | Python & Data