Satyabeer Y.

🤝 100+ clients worldwide 💯 10+ years of industry experience on Upwork 🤓 Expertise in Full-Stack Development, AI/ML Solutions, and Mobile App Development 💎Advanced Automation Solutions using Make .com, Zapier, and n8n 🧑‍💻 Specialised in No-Code & Low-Code Platforms, including Bubble, Webflow 🍾Workflow & CRM Expertise with Monday .com and GoHighLevel (GHL) 📞 AI Voice Agent Development using Vapi, Retell AI, and Bland AI Hey there I’m an expert Mobile App Developer and Full-Stack Engineer specialising in building production-ready iOS and Android applications, AI-powered products, backend systems, automation workflows, and no-code/low-code platforms. My mobile development experience includes Flutter, React Native, Kotlin, Java, Swift, native Android/iOS development, API integration, authentication, payments, real-time features, push notifications, analytics, and GDPR SDK/privacy development and integrations. I also build the backend and AI infrastructure behind mobile and web products using Python, FastAPI, Django, Node .js, REST APIs, PostgreSQL, MongoDB, Firebase, AWS, Docker, and third-party APIs. 📱 Mobile App Development ✅ Flutter ✅ React Native ✅ Kotlin ✅ Java ✅ Swift ✅ Android & iOS ✅ Cross-platform mobile apps ✅ Native mobile development ✅ REST API & backend integration ✅ Firebase ✅ Push notifications ✅ Real-time features ✅ Payment integrations ✅ Authentication & social login ✅ GDPR SDK & privacy development and integrations ✅ Mobile analytics and third-party SDK integrations 🤖 AI & Automation I build practical AI systems rather than just AI demos. ✅ OpenAI / GPT ✅ Claude ✅ AI Agents ✅ RAG systems ✅ LangChain ✅ NLP & Vision ✅ Whisper ✅ AI-powered applications ✅ AI workflow automation ✅ AI voice agents I work with Vapi, Retell AI, Bland AI, Synthflow, OpenAI, Claude, Relevance AI and other AI platforms to build intelligent business workflows and conversational systems. ⚙️ Backend & Full-Stack Development ✅ Python ✅ FastAPI ✅ Django ✅ Node .js ✅ PHP / Laravel ✅ REST APIs ✅ Webhooks ✅ Microservices ✅ API integrations ✅ PostgreSQL ✅ MongoDB ✅ Firebase ✅ AWS / GCP ✅ Docker & CI/CD I specialise in connecting applications, APIs, databases, AI services and third-party platforms into reliable production systems. 🎥 AI Video & Messaging APIs ✅ HeyGen API ✅ AI video generation ✅ AI avatar/video workflows ✅ WhatsApp Business API ✅ WhatsApp Cloud API ✅ WhatsApp automation ✅ WhatsApp webhooks ✅ Twilio ✅ CRM + WhatsApp integrations I can build complete workflows where an event in your application triggers an AI process, generates content/video, communicates with users through WhatsApp, and updates your CRM or backend automatically. 🧩 No-Code & Low-Code Development ✅ Bubble ✅ WeWeb ✅ UNA CMS ✅ Make .com ✅ n8n ✅ Zapier ✅ GoHighLevel ✅ API integrations ✅ Custom workflows ✅ SaaS applications ✅ CRM automation I can develop complete products with no-code/low-code platforms or combine them with custom backend development when more flexibility and scalability are required. 🔗 CRM & Business Automation I have experience integrating and automating: GoHighLevel, HubSpot, ActiveCampaign, Pipedrive, Monday .com, ClickUp, Notion, Airtable, Twilio, Vapi, Retell, WhatsApp and other business platforms. 🚀 Examples of Work • 50K+ user application with AI matching that increased engagement by 40% • Healthcare application with real-time tracking, AI insights and OpenEMR customisations • AI-powered Google Ads optimisation automation • LinkedIn + CRM automation systems • AI-powered SaaS and web applications • Mobile applications connected to custom APIs, AI services and third-party platforms 🛠️ My Approach I don't just write code. I build complete, production-ready systems. Whether you need a mobile app, AI application, backend/API, WhatsApp integration, HeyGen workflow, Bubble/WeWeb/UNA CMS product, automation system, or complete SaaS platform, I can work across the stack and connect all the moving parts. Mobile → Backend → AI → APIs → Automation → CRM → Cloud I can take your product from idea and architecture to development, integrations, testing and production. 📩 Have an app idea, an existing product that needs development, or a complex workflow that needs automation? I can get that done. Cheers Satya