Saifullah A.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 8, 2026.

🏆 Built and scaled WAWCD, an AI-powered WhatsApp CRM SaaS, to 25K+ active users and approximately $150K in annual revenue. Developed AI features including smart reply generation, message rewriting, conversation summaries, automated responses and intelligent workflows, alongside bulk messaging, contact management, templates and synchronization. Built with Next.js, TypeScript, Tailwind CSS, Node.js and AI/LLM integrations. 🏆 Helped build Wedlii, Australia's first AI-powered wedding planner, helping couples discover venues, vendors and inspiration while organizing their big day with smart planning tools. Led its development using Node.js, Nest.js, React and PostgreSQL, ensuring a seamless and scalable platform that efficiently handles user data and optimizes user experience. 📈For me, it’s all about results and creating value. You can find plenty of experienced developers around, who can do the development job for you, but what I care about most is how I can contribute to your project's and business's growth. 🎯I specialize in Full-stack development | AI/LLM integration | API integration | DevOps practices | UX/UI design and development | Database architecture | Responsive web design | Real-time communication solutions | Testing and QA | Agile project management | Performance optimization | Problem solving | Client-focused partnership | Technical consulting | User experience advocacy 🛠️My Expertise ✔Languages and Frameworks: HTML/CSS, Javascript, ReactJS, NodeJS, ExpressJS, TypeScript, GraphQL, NextJS, React Native, Redux ✔IDEs: Visual Studio Code ✔Project Management Tools: Asana, Pivotal Tracker, Trello, Jira, Slack, Teamwork, Flow ✔Web Services: Heroku, Docker, Digital Ocean Services, AWS S3, Google Cloud Storage, AWS EC2, AWS Lambda, Firebase, CI/CD ✔AI Development Tools: Claude (Anthropic), Cursor AI, GitHub Copilot, ChatGPT/OpenAI API, Windsurf, Claude Code ✔AI & Machine Learning: OpenAI API (GPT-4/4o), LangChain, RAG pipelines, vector databases (Pinecone, Weaviate), prompt engineering, AI agent development, NLP, chatbot design, embeddings, AI-assisted automation workflows ✔Relational Databases: PostgreSQL, MySQL ✔Non-Relational Databases: MongoDB ✔E-commerce Platforms: Shopify, BigCommerce ✔Search Engines: Elastic Search ✔Web Real-Time Communication: PubNub, Socket,io ✔Authentication: Auth0, OpenID Connect, JWT ✔Testing Tools: Mocha, Jasmine, Jest ✔Payment Gateways: Stripe, PayPal ✔AI Chatbot Builder and Messaging Services: Twilio, Twilio Programmable Messages ✔Social Integrations: Google OAuth, Facebook, Twitter ✔Mailing Services: SendGrid, Mailchimp ✔Locations: Google Maps 🤝🏽I focus on understanding your needs and delivering high-quality results that truly support your goals. Let’s build something meaningful together 🙌