Muhammad Abdul Rehman S.

I help startups, founders, and growing teams build production-ready SaaS platforms, AI-powered web apps, healthcare systems, dashboards, and backend products using React, Node.js, and Next.js with a focus on shipping reliable software that improves operations, reduces manual work, lowers long-term costs, and supports business growth. I’m a Top Rated Upwork developer with 100% Job Success, 1000+ Upwork hours, and 6+ years of full-stack engineering experience building real-world applications for healthcare, fintech, e-commerce, real estate, booking systems, AI tools, and business platforms. Business value I focus on My goal is not just to write code. My goal is to help you turn technical work into measurable business value: faster launches, smoother user experiences, lower operational costs, better internal workflows, scalable architecture, and software that can support paying users, staff, admins, and long-term growth. What I can help you build: - SaaS MVPs and production web apps that can launch faster and scale cleanly - AI-powered dashboards, chatbots, and internal tools that reduce manual work - Healthcare and telehealth platforms with secure, role-based workflows - React / Next.js frontends focused on usability, speed, and conversion - Node.js / NestJS / Express backends designed for performance and maintainability - Admin dashboards, customer portals, and multi-role systems that improve team efficiency - Stripe, PayPal, subscriptions, and third-party API integrations that support monetization - AWS deployment, Docker, CI/CD, performance optimization, and long-term maintenance - Bug fixing, scaling, and takeover of existing React/Node.js codebases without creating more technical debt Healthcare & Telehealth Platforms Built systems like Cost Savy, including patient, doctor, admin, and PMS portals, appointment booking, video consultation flows, APIs, AWS deployment, role-based access, reminders, inventory workflows, and reporting. For telehealth platforms, I have also worked with custom WebRTC-based video consultation flows, helping reduce dependency on expensive per-minute third-party video services like Twilio and making high daily video-call volume more cost-efficient to operate at scale. AI-Powered Applications Built practical AI features, including RAG-based document chat apps, AI chatbots, OpenAI/GPT integrations, vector search, Qdrant, speech-to-text, text-to-speech, Groq, ElevenLabs, LangChain, and custom AI workflows. These tools help businesses automate repetitive tasks, improve knowledge access, and create smarter user experiences. SaaS, Dashboards & Backend Systems Built and maintained admin dashboards, customer portals, payment systems, subscription flows, REST/GraphQL APIs, role-based permissions, reporting, CMS-style admin panels, and cloud deployments. These systems help businesses manage users, content, payments, analytics, and daily operations from one reliable platform. Core stack React.js, Next.js, TypeScript, JavaScript, Node.js, NestJS, Express.js, Python/FastAPI, PostgreSQL, MongoDB, MySQL, Redis, Qdrant, Firebase, Supabase, OpenAI API, LangChain, AWS, Docker, Stripe, PayPal, WebRTC. What makes my work different I do not just complete tickets, I think through product flow, architecture, edge cases, scalability, performance, security, user experience, cost-efficiency, and business impact. Clients usually hire me when they need someone who can take ownership, communicate clearly, solve complex technical problems, improve existing systems, and ship reliable software without unnecessary delays or technical debt. Whether you are building a new SaaS MVP, improving an existing React/Node.js app, adding AI features, automating operations, reducing infrastructure costs, or scaling a production platform, I can help you plan, build, deploy, and maintain it properly. Send me a message, and I’ll help you choose the cleanest technical path forward.