Ahsan T.

I build complete technology products, from AI models and intelligent agents to backend systems, web and mobile applications, automation, cloud infrastructure, and production deployment. I’m an AI and Full Stack Systems Engineer who works across the entire product lifecycle. I can take a concept from architecture and AI or ML development through backend engineering, web and mobile development, integrations, cloud infrastructure, automation, and production. What makes my approach different is that I don’t only build for clients. I build and operate my own products, so I understand what it takes to turn an idea into a real product, including architecture, scalability, security, user experience, AI behavior, infrastructure, cost, reliability, and long term maintainability. AI, Machine Learning and Intelligent Systems I build Generative AI and Agentic AI systems using OpenAI, Claude, Gemini, LangGraph, LangChain and Hugging Face. My experience includes multi agent systems, RAG applications, embeddings, semantic search, vector databases, AI assistants, recommendation systems, conversational intelligence, prompt engineering, context management, memory systems and token optimization. I also work across Machine Learning and Deep Learning with PyTorch, TensorFlow and Scikit learn, including NLP, Transformers, BERT, RoBERTa, Computer Vision, OpenCV, MediaPipe, feature engineering, feature selection, anomaly detection, classification and predictive modelling. My research experience includes Federated Learning, Byzantine robust aggregation, adversarial attacks, AI security and reproducible ML experimentation. Backend and Systems Engineering I build production backends with Python, FastAPI, Django and Django REST Framework, including REST APIs, WebSockets, asynchronous systems, microservices, background workers, queues and event driven architectures. I work with PostgreSQL, MySQL, SQLite, MongoDB, Redis and Supabase, and build multi tenant SaaS platforms with RBAC, JWT, OAuth2 and SSO. Web and Mobile Development I build complete applications using React, React Native, JavaScript, TypeScript, HTML and CSS, including responsive web applications, cross platform mobile applications, real time interfaces, chat systems, dashboards and API driven products. Automation and Integrations I design intelligent business automation using n8n, Zapier, Make and Voiceflow, connecting CRMs, ERPs, communication platforms and internal systems. My integration experience includes Twilio, Stripe, DocuSign, Microsoft Graph, HubSpot, Monday, Housecall Pro, REST APIs, SOAP APIs, webhooks and OAuth based systems. I also build AI voice agents, conversational systems and automated communication workflows. Cloud and Production Engineering I work with Google Cloud, AWS, Azure, Firebase and Vercel, including Cloud Run, Cloud SQL, Cloud Build, AWS Glue, Lambda, S3 and EC2. Docker, CI/CD, automated testing, code quality, logging, monitoring, retries, error handling and production debugging are part of how I build systems from the beginning. Real Production Experience I have engineered systems handling 1,000+ concurrent requests, 10,000+ CRM actions per month, 5,000+ bookings per month, 1M+ automation events per month, 100K+ documents and 1M+ vectors. My work spans multi agent AI platforms, AI voice systems, RAG applications, enterprise ERP automation, healthcare technology, CRM systems, real time applications, data engineering, computer vision, cybersecurity research and intelligent automation. I Build Products Too My own Ranbval ecosystem includes products such as Ranbval Social, an AI native social platform with conversation agents, relationship intelligence and real time communication. Ranbval Secret Manager, an open source encrypted and repository bound secrets platform with Python and Node.js SDKs. Ranbval Health, an AI healthcare operating system combining voice agents, clinical workflows, patient intelligence and automation. Because I build my own products, I understand the difference between making something work in a demo and engineering something that can actually operate as a product. If you have an idea, I can help architect it. If you need an AI system, I can build it. If you need a web or mobile product, I can build the application around it. If your business relies on manual work, I can automate it. If your existing system is slow, expensive or unreliable, I can redesign it. Tell me what you’re building, what you want to automate, or what isn’t working, and I’ll help turn it into a production ready system.