Mohsin N.

I’m a Full-Stack Developer with 5+ years of experience building scalable web and mobile applications. I specialize in MERN (MongoDB, Express, React, Node.js), React Native, and Flutter, with strong database expertise in MySQL and PostgreSQL. I build secure, scalable, and user-friendly applications using MERN (MongoDB, Express, React, Node.js), Next.js, React Native, and Flutter. From MVPs to enterprise-ready apps, I deliver fast, reliable solutions aligned with your business goals. 🚀 What I Can Build for You 🌐 SaaS Development (MERN, Next.js): Subscription systems, dashboards, automated billing (Stripe, PayPal, Apple Pay 📊 B2B Platforms: Enterprise tools, workflow automation, secure APIs, real-time analytics 🛒 Marketplaces & Multi-Vendor Platforms: Vendor onboarding, geo-features, inventory sync, Stripe Connect 📱 Mobile App Development: React Native & Flutter apps, iOS & Android, cross-platform solutions, PWAs 🎨 UI/UX Design: Figma wireframes & prototypes, responsive & mobile-first design ⚙️ Backend & API Engineering: REST APIs, GraphQL, authentication (JWT, OAuth2, Firebase Auth), microservices ☁️ Cloud & DevOps: AWS, Docker, Kubernetes, GitHub Actions, Vercel, DigitalOcean 🗄️ Database Architecture: PostgreSQL, MySQL, MongoDB, Firebase | migrations & performance tuning 🔒 Security & Compliance: Role-based access, OAuth2, PCI-DSS-compliant payment flows 🛠️ Technical Expertise Frontend: React.js, Next.js, Vue.js, Angular, Redux, Tailwind CSS, Material UI Backend: Node.js, Express, REST APIs, GraphQL, Redis, microservices Mobile Apps: React Native, Flutter, Swift, Kotlin, PWA (Progressive Web Apps) Databases: MongoDB, PostgreSQL, MySQL, Firebase Payments: Stripe, PayPal, Apple Pay, subscriptions, invoicing, webhook automations Cloud & DevOps: AWS, Docker, Kubernetes, GitHub Actions, Vercel, DigitalOcean, CI/CD Testing & Quality: Jest, Cypress, Unit Testing, E2E Testing, TDD Design & Collaboration: Figma, Trello, Notion, ClickUp 📌 Recent Projects Healthcare EMR Platform (Web + Mobile App): Developed a secure Electronic Medical Records system with role-based access, patient portals, doctor dashboards, appointment scheduling, and HIPAA-compliant data storage. Mobile apps built in React Native & Flutter for seamless cross-platform use. SaaS Subscription Platform (MERN + Next.js): Automated billing, Stripe integration, role management, dashboard Multi-Vendor Marketplace (MERN): Geo-enabled vendor sync, real-time dashboards, Stripe Connect payments Cross-Platform Mobile App (React Native + Flutter): Subscriptions, onboarding flows, push notifications, REST API integrations Enterprise Admin Dashboard (React + Node.js): Analytics dashboards, reporting workflows, secure role-based access 🎯 Why Clients Choose Me ✔ Specialized in SaaS, marketplaces, B2B platforms, and mobile app development ✔ Proven track record: MVP → scale-up → enterprise production apps ✔ Clean, maintainable, and documented code for long-term success ✔ US time-zone overlap & agile communication ✔ End-to-end ownership → Architecture → UI/UX → Backend → Mobile → Deployment 👉 If you need a SaaS MVP, marketplace platform, or mobile app, I’ll deliver a secure, scalable, and growth-ready solution tailored to your business. Let’s build your next project together!