Buy & Sell App
Branding, Website Design, Development
View case studyI design products end-to-end — research, flows, interaction, and visual systems — and then build them myself in React Native, Swift, and Next.js. Fourteen years taking ideas from first sketch to App Store, including the SERHANT platform behind a $45M Series A.
Recent work Beckon, a voice assistant that lives in the Mac notch and returns hotel research with real prices and links in about 16 seconds; Afterhours, a live-viewfinder vintage-camera iOS app on the App Store; GetPeter, a Chrome extension that tailors résumés per role and autofills ATS applications; ClassCrafter, an AI-powered curriculum generator; and Hanii, a calmer dating app for people tired of endless swiping.
Designed in Figma, built by hand; AI-augmented where it earns its keep.
I'm a product designer who ships the code. For over 14 years I've taken products from user research and wireframes to production, so the details that make a design feel right never get lost in a hand-off, because there isn't one. I work closely with founders and early-stage teams who want one person to own the whole experience.
User interviews, usability testing, flows, and wireframes through to high-fidelity prototypes. My redesign work for A4Tech lifted engagement 30%, cut bounce rate 20%, and raised onboarding completion 40%.
Interfaces, motion, and component systems that stay consistent from Figma to production. I build design systems that teams keep shipping on after I leave, across web, mobile, and native desktop.
React Native and Swift apps with camera pipelines, live shaders, video, and real-time features. I build the design I drew, performance and native feel included, and ship it to the App Store myself.
Next.js, TypeScript, Supabase, and Stripe, from database design to subscriptions, in-app purchases, and creator payouts. Paywalls and checkout are design problems too; I own them from layout to webhook.
Six products I designed and built end-to-end, from first wireframe to release — three React Native iOS apps, a native macOS voice assistant, a desktop market-intelligence platform, and a Chrome extension. Five are live in the hands of real users today; the sixth is in active development.

Peter was a breath of fresh air when it comes to developers. He was quick, professional and took all of my comments into consideration. The end result exceeded my expectations.
Danny Courisou – Managing DirectorI can’t thank you enough for having no life the last 3 months to seriously improve our user experience and mobile. I appreciate your dedication and efforts immensely
Marshall – CEO and Founder, AquariumHubMr. Garcia did a fantastic job creating a design for our application, on demand with a great turnaround time. His work has exceeded our expectations and we would recommend him without hesitation to anyone looking for a great designer. His code was clean, concise, and easy to work with, and he was very communicative throughout the process. Thanks, Peter!.
REDACTED - NDAI'm currently open to senior product design and founding design-engineer roles where I can own a product's experience from research to release.
Early-stage startups (Pre-seed to Series A)
Product-driven teams building consumer apps