DevCrew

Are you building a SaaS platform, mobile app, or scalable web product and need a developer who delivers clean architecture, not just working code? Hi, I'm Raja Hussnain Ali a Top-Rated with 100% JSS Full Stack Developer with 6+ years of experience building production-grade web and mobile applications for startups, enterprises, and global brands. My work is live across the App Store and Google Play including apps for PETA, Calo, and multiple SaaS products with thousands of active users. I don't patch problems. I architect systems built to scale. What I Build: Web & SaaS Applications End-to-end development using React.js, Next.js, Node.js, and MongoDB. From MVP to enterprise. I handle frontend, backend, APIs, auth systems, admin dashboards, and cloud deployment. Mobile Apps (iOS & Android) Cross-platform React Native apps with native integrations, Firebase backends, real-time features, and full App Store / Google Play deployment. I've shipped apps in fitness, productivity, lifestyle, e-commerce, and meditation categories. Shopify & E-Commerce Shopify Plus customization, 3D/AR product visualization, custom bundle builders, Liquid theme development, and Storefront API integrations that increase AOV and reduce returns. Backend & API Engineering Secure REST and GraphQL APIs, JWT/OAuth2 authentication, microservices, real-time data sync with Socket io, and async workflows built for high-traffic production. Live Apps I've Shipped 1. Calo(work with) — Nutrition & meal planning app (App Store + Play Store, 100K+ users) 2. United — Family task & parenting coordination app (iOS + Android) 3. Empathize by PETA — Guided meditation app (iOS, Health & Fitness) 4. MoyaStudio — Yoga & pilates class booking app (iOS, Sports) 5. Rita's Convention — Event companion app (iOS + Android, Business) 6. ACDC EV — Real-time EV charger locator with map & navigation (iOS + Android) 7. TODAS — Google Ads training platform with real-time admin chat (MERN) 8. V4H2O — AI-powered nutrition tra