RAJESHBHAI K.Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Oct 20, 2026.

🟢 Available for Work | 🏆 Certified Senior Full Stack Developer | SaaS | API | AI Automation 👋 Hi, I’m a Senior Full Stack Developer with 9+ years of experience building scalable SaaS platforms, high-performance APIs, and AI-powered automation systems. I specialize in transforming complex business requirements into secure, production-ready, and scalable applications running on modern cloud infrastructure. 👉 I help startups and enterprises build systems that are fast, reliable, and future-ready. 💡 What I Can Do for You ✔ End-to-end SaaS development (MVP → Scale) ✔ Backend architecture & high-performance APIs ✔ Modern frontend development (React / Next.js) ✔ AI-powered automation & workflows (OpenAI / GPT) ✔ Cloud-based scalable systems (AWS / Serverless) 🏆 Proven Experience & Impact Delivered scalable healthcare platforms with clinical workflows, document processing, and secure data handling (HIPAA-aware architecture) Built AI-powered medical document systems (CPT / ICD / SNOMED automation, intelligent extraction, workflow routing) Developed fintech & enterprise-grade applications with secure transactions, RBAC, and optimized backend performance Designed multi-tenant SaaS platforms supporting thousands of users Implemented event-driven architectures (SQS, async processing) for scalability Built AI automation systems reducing manual work by 40–70% Worked with clients across US, UK, Canada & Australia with ⭐⭐⭐⭐⭐ feedback 🤖 AI / LLM & Automation Expertise OpenAI (GPT-4 / GPT-4o) integration for: Document analysis & intelligent data extraction Healthcare automation (CPT / ICD mapping) AI chatbots & assistants End-to-end AI workflows: Document → Classification → Structured Data → Task Creation Smart automation pipelines for: Healthcare workflows (PCP, MD, RC routing systems) Prompt engineering & optimization for high accuracy Real-world AI integration in production SaaS systems ⚡ Core Technical Expertise 🔹 Backend Development Node.js, Express.js REST API, GraphQL, Microservices Authentication (JWT, RBAC, Cognito) 🔹 Frontend Development React.js, Next.js Responsive UI, reusable components Redux / Context state management 🔹 Database MongoDB, PostgreSQL, MySQL DynamoDB, Redis, Supabase, Firebase 🔹 Cloud & DevOps AWS (Lambda, API Gateway, S3, EC2, Cognito, SES) Docker, CI/CD, GitHub Actions Serverless architecture 🔥 Specializations ✔ SaaS Product Development ✔ API Development & 3rd-party Integrations (Stripe, Twilio, etc.) ✔ Healthcare & Clinical Systems ✔ AI Automation & Smart Workflows ✔ Scalable Backend Architecture 💎 Why Clients Choose Me ✔ Clean, scalable & production-ready code ✔ Strong problem-solving & system design skills ✔ Fast delivery with high quality ✔ Clear communication & regular updates ✔ Long-term support & reliable collaboration 📩 Let’s Work Together If you’re looking for someone who can understand your business and build scalable, AI-powered systems, I’m here to help. 👉 Send me a message — let’s discuss your project.