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aminsharif236

Amin Sharif

@aminsharif236

AI Chatbot Developer, Expert on RAG, GPT, LangChain, Langgraph

Bangladesh
English, Bengali
About me
I'm Amin Sharif, an AI Engineer specializing in RAG pipelines, LangChain, and LangGraph. With 5+ years of enterprise software engineering experience (C#.NET, Angular, FastAPI, Next.js), I now build production-ready AI assistants that turn documents into intelligent conversational systems. My flagship project, Knowledge AI is a full-stack RAG-powered chatbot with hybrid retrieval, source transparency, and multi-model support (OpenAI + Ollama). I deliver scalable, accurate, and cost-efficient AI solutions for customer support, internal knowledge bases, and document Q&A platforms.... Read more

Skills

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aminsharif236
Amin Sharif
Offline • 

See my services

AI Integrations
I will build ai chatbot trained on your documents using gpt and rag
From$100 / projectMore details
AI Implementation & Deployment
I will automate lead scraping, scoring, and outreach using ai and n8n
From$30 / projectMore details

Portfolio

Work experience

AI Engineer | RAG & Knowledge Base Systems

Freelance / Personal Projects • Self-employed

Feb 2024 - Present • 2 yrs 5 mos

Designed and developed production-ready AI Knowledge Base platforms using Retrieval-Augmented Generation (RAG). Built intelligent chatbots capable of answering questions from PDFs, websites, and structured business data. Implemented advanced workflows using LangChain and LangGraph for multi-step reasoning and agent-based execution. Developed hybrid search systems (vector + keyword) to improve retrieval accuracy and reduce hallucination. Integrated GPT-based APIs and local LLMs (Ollama) with dynamic model selection. Created features like document-level chat, vector chunk inspection, API logs, and cost tracking. Designed scalable backend architecture using FastAPI with modular and clean design principles. Built full-stack AI applications with Next.js frontend and API-driven backend services.

Software Engineer

Wilka, Velbert, Germany • Full-time

Jan 2021 - Present • 5 yrs 6 mos

Led development of enterprise-grade systems while transitioning into AI-first architecture. Built and maintained scalable Web APIs and backend systems using ASP.NET Core. Integrated modern data pipelines and explored AI-driven enhancements for enterprise workflows. Developed data ingestion and processing systems (including Excel pipelines) aligned with future AI integration. Worked with cloud services to ensure scalability, performance, and reliability.

Software Engineer

Trillionbits Ltd • Full-time

Apr 2019 - Jan 2021 • 1 yr 9 mos

Developed full-stack applications including eCommerce, ERP systems, and mobile solutions. Built REST APIs and handled complex business logic across multiple domains. Worked on real-time tracking, authentication systems, and multi-role enterprise applications. Gained strong experience in scalable architecture, which now supports AI system design.