Siyam Uddin T.

Full-Stack Software Engineer | AI/LLM, Python, Node.js, GraphQL & SQL

With over 5+ years of professional engineering experience, I help scaling businesses and ambitious startups turn complex requirements into high-performing, future-proof software. With over four years of engineering experience, I specialize in a modern, powerful technology stack that combines Python and FastAPI, RAG for backend performance, along with React, Next.js, and React Native for exceptional user experiences. My approach goes beyond writing code. I architect systems that are secure, scalable, and increasingly intelligent. By integrating Retrieval-Augmented Generation (RAG) and AI agents into standard applications, I help clients leverage the latest in artificial intelligence to create smarter workflows and data-driven products. My Core Services & Expertise: 1. High-Performance Web & Mobile Development - I build responsive, pixel-perfect frontends using React and Next.js, ensuring that your application is not only visually robust but also optimized for SEO and load speeds. For mobile initiatives, I utilize React Native to deploy native-feeling applications on both iOS and Android from a single codebase. I place a heavy emphasis on state management (Redux/Redux Toolkit) to ensure consistency across the application. 2. AI-Native Architecture & RAG Systems - Integrating AI is my key differentiator. I move beyond simple API calls to design full AI pipelines. I implement RAG (Retrieval-Augmented Generation) systems that allow Large Language Models to "read" and reference your private business data securely. * Vector Search: Implementation of vector databases (Pinecone, Milvus, Weaviate) for semantic search. * AI Agents: Building intelligent agents using LangChain, LangGraph, and OpenAI, Gemini, and LLM that can execute tasks and automate workflows. 3. Scalable Backend & Database Design: A pretty interface means nothing without a solid foundation. I engineer secure RESTful and GraphQL APIs using Python (FastAPI) and Node.js. My experience extends to complex database architecture, ensuring that whether you use SQL (PostgreSQL, MySQL) or NoSQL (MongoDB, Firestore), your data is structured for fast retrieval and long-term maintainability. 4. Infrastructure & Deployment: I handle the full lifecycle of the application. From setting up CI/CD pipelines with GitHub Actions to containerization with Docker and deployment on AWS or Vercel, I ensure that your product is stable and easy to update. How I Work I view every project as a partnership. My code is written to be modular and clean, strictly adhering to industry best practices so that your internal team can easily maintain or scale it in the future. I prioritize clear, transparent communication and alignment on business goals, ensuring that the technology we build directly supports your revenue and growth targets. Technical Toolkit: Languages: Python, TypeScript, JavaScript, SQL. Frontend: React, Next.js, React Native, Tailwind CSS, Material-UI. Backend: FastAPI, Node.js, Express, Prisma, SQLAlchemy. AI/Data: LangChain, LangGraph, OpenAI, Gemini, Pinecone, Milvus. Cloud: AWS, Docker, DigitalOcean, Firebase, Vercel, Supabase. I am available to discuss your current infrastructure and how we can build your next product to be scalable, efficient, and intelligent. Let’s connect to discuss your project requirements.