Muhammad Zain

Gen AI Engineer · Lahore, Pakistan

Gen AI Engineer based in Lahore, Pakistan, specializing in production-ready AI SaaS products from concept to deployment. I build intelligent data analysis tools, AI-powered web applications, and enterprise solutions using Next.js, MongoDB, and modern AI APIs, with strong focus on UX, performance, and rapid iteration.

Download Resume

About Me

Full Stack Gen AI Developer specializing in building production-ready AI SaaS products from concept to deployment. I focus on intelligent data analysis tools, AI-powered web applications, and enterprise solutions using Next.js, MongoDB, and modern AI APIs.

Core Strengths:

•RAG pipelines with LangChain + ChromaDB for document intelligence and semantic search
•ReAct agent architectures with Gemini and OpenAI APIs for reasoning + code generation
•AI chat interfaces, PDF Q&A systems, and real-time data visualization dashboards
•Scalable backends with Next.js API routes and FastAPI, with persistent storage in MongoDB
•Auth, payments, and subscriptions for AI SaaS monetization (NextAuth.js)
•Streaming, caching, and prompt engineering for low-latency inference pipelines

Technologies

Experience

Oct 2025 - Present

Full Stack Gen AI Developer -

Architect and develop end-to-end AI SaaS products from concept to deployment with focus on UX, optimization, and rapid iteration.

Architect and develop end-to-end AI SaaS products using Next.js, MongoDB, and TypeScript, delivering production-ready applications from concept to deployment.
Built AI-powered data analysis tools enabling users to query CSV, Excel, and PDF files using natural language, featuring in-browser Python execution and auto-visualization.
Implement ReAct agent architectures with Gemini AI and OpenAI APIs for intelligent reasoning, automatic code generation, and iterative problem-solving in production applications.
Design and develop RAG pipelines using LangChain and ChromaDB for document intelligence, enabling semantic search and context-aware AI responses.
Build scalable backend services with Next.js API routes and FastAPI, integrating AI endpoints with MongoDB for persistent storage and user management.
Implement authentication flows with NextAuth.js, payment integrations, and subscription management for AI SaaS monetization.
Optimize AI inference pipelines achieving sub-100ms response times through streaming responses, caching strategies, and efficient prompt engineering.

Next.jsTypeScriptMongoDBFastAPILangChainChromaDBGemini APIOpenAI APIRAGReAct AgentsNextAuth.js

Jan 2025 - Oct 2025

Junior AI Engineer -

Designed, fine-tuned, and deployed LLM and multimodal solutions with low-latency inference and reliable production integrations.

Designed, fine-tuned, and deployed LLMs and multimodal models for enterprise use cases including customer support automation.
Built scalable FastAPI backends to serve AI/ML models with low-latency inference and high availability.
Developed RAG pipelines using LangChain and ChromaDB for domain-specific intelligent chatbots.
Integrated AI endpoints into production systems via secure REST and WebSocket APIs with comprehensive error handling.
Optimized model performance through quantization, batching, and asynchronous request handling techniques.
Collaborated with product teams to ship AI-driven features improving user engagement and decision-making workflows.

PythonFastAPILangChainChromaDBRAGWebSocketREST APIsLLMs

Mar 2024 - Dec 2024

Full Stack Developer - Tech Wizardz

Led development and maintenance of multiple web applications and backend APIs with a strong focus on performance and delivery.

Led development and maintenance of 5+ web applications using React.js, Node.js, and MongoDB.
Designed and implemented RESTful APIs with optimized database queries reducing response time by 30%.
Collaborated with stakeholders for requirement gathering, sprint planning, and timely project delivery using Agile methodologies.
Implemented responsive UI components and integrated third-party services for enhanced functionality.

ReactNode.jsMongoDBREST APIsJavaScript

Education

Sep 2022 - Jun 2026

BS Information Engineering Technology -Grade A

Projects

Smile Dental - AI Voice Receptionist

Live demo of an AI receptionist that turns a spoken request into a booked dental appointment. The caller says "book a cleaning tomorrow at 3 PM, name is Ali" and the agent confirms out loud while the front-desk dashboard fills in real time. Built on the Gemini Live API with ephemeral tokens, streaming PCM audio, function calling, and server-side validation of clinic hours.

ReactGemini Live APIWebRTC AudioFunction CallingExpressTailwind CSS

GitHub Live Demo

PaperPilot - AI Data Analysis SaaS

Production AI SaaS platform that lets users upload CSV, Excel, or PDF files and analyze them using natural language. Includes ReAct agent reasoning, automatic Python code generation, in-browser execution via Pyodide, auto-visualization, and privacy-focused PDF chat.

Next.jsTypeScriptPythonGemini APIPyodideWebAssembly

GitHub Live Demo

favicli

One command to set up favicons for React and Next.js projects. Detects project type, lets you choose a source image, generates all required favicon assets, and injects references automatically.

Node.jsJavaScriptCLIReactNext.jsFavicon Automation

GitHub Read Blog

University of Lahore GPA Calculator

A web application that enables students to calculate their GPA based on their academic records, providing an easy-to-use interface for managing and tracking academic performance.

ReactTypeScriptViteTailwind CSS

GitHub Live Demo

Study Buddy

An AI-powered chatbot that simulates human conversation by generating natural language responses to user inputs. Leverages NLP techniques to understand and respond to student questions, providing personalized learning assistance.

ReactTypeScriptTailwind CSSViteNLPAI

GitHub Live Demo

Draw Math

Draw Math is a web application that allows students to solve math problems by drawing them on a canvas. The application uses a custom model to recognize the math problem and solve it.

ReactTypeScriptTailwind CSSTesseractNLPAIGemini AI

GitHub Live Demo