I’m Ruisheng Zhao — a mobile-first, cross-platform developer who thrives at the intersection of performance and product experience. With a background spanning Objective-C to Flutter, and React Native to Next.js, I’ve spent the past decade building real-world, production-grade apps — some used by millions, others powering health platforms where reliability is mission-critical.
Over the years, I’ve led teams, shipped dozens of features, and scaled mobile infrastructures. At So-Young, I directed iOS engineering across multiple product lines and reduced our app size by over 40MB while keeping our crash rate under 0.02%. At AiNaDoctor, I’m currently building a full-stack healthcare SaaS platform from the ground up, bridging mobile UX with backend data pipelines powered by Prisma, PostgreSQL, and Python.
I’m also a practitioner of edge-native AI. I’ve implemented lightweight ML systems like MovePose, optimized TensorFlow Lite inference for iOS, and recently built multimodal retrieval pipelines using OpenCLIP and FAISS — enabling fast semantic search over visual content in retail and medical contexts. I care deeply about building efficient, meaningful software that doesn’t just work, but feels great to use.
I don’t think resumes or tech stacks alone define a developer. What matters to me is how fast I can understand a problem, design a solution, and bring it to life — cleanly, scalably, and with empathy for the people using it.