Available to hire
I’m Partha Pratim Nandi, a freelance AI engineer and consultant based in Erlangen, Germany. I design and deploy end-to-end AI solutions for startups, SMBs, and enterprises, with a focus on Generative AI, LLMs, RAG, AI agents, and workflow automation.
My work combines hands-on engineering with practical AI strategy to reduce operational costs, streamline customer service, and automate complex research and content workflows. I’ve helped clients scale to thousands of requests per day with high uptime across AWS, Azure, and GCP.
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Expert
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Work Experience
AI Software Developer at Fraunhofer IIS
September 1, 2022 - PresentBuilt a custom AI chatbot for an e-commerce client using GPT-4 and LangChain with RAG, reducing customer support ticket volume by 45% and improving response accuracy to 92%. Designed and deployed an intelligent document processing system using LlamaIndex, Pinecone, and FastAPI for semantic search across 100K+ financial documents. Developed multi-agent AI workflows using CrewAI and LangGraph for a marketing agency, automating lead research, content generation, and outreach — saving 20+ hours/week. Created AI-powered automation pipelines using n8n, Make, and Zapier integrated with CRMs (GoHighLevel, HubSpot), reducing manual data entry by 80% for a real estate firm. Delivered prompt engineering and LLM fine-tuning consulting for multiple clients, optimizing AI model outputs for customer support, content creation, and data extraction use cases. Built production-ready REST APIs with Python and FastAPI to serve AI models on AWS and GCP, handling 10K+ daily requests with 99.9% uptime.
AI Engineer & Consultant at Aum Solutions
January 1, 2020 - December 1, 2021Designed and built production-grade AI chatbots and virtual assistants using LLMs (GPT-4, Claude, Gemini), reducing internal support response time by 60% across research teams. Architected RAG pipelines using LangChain, LlamaIndex, and vector databases (Pinecone, ChromaDB, FAISS) for intelligent document retrieval and semantic search across 50K+ research documents. Developed multi-agent AI systems and agentic workflows using CrewAI and LangGraph, automating complex multi-step research and data processing tasks. Built and maintained scalable REST APIs with Python and FastAPI, serving AI models in production environments on AWS and Azure. Implemented end-to-end AI automation pipelines using n8n, Make, and Airflow, integrating AI services with internal tools, databases, and third-party APIs. Conducted LLM fine-tuning, prompt engineering, and evaluation using LangSmith and Hugging Face, optimizing model performance for domain-specific use cases. Collaborated with cross-functional teams to
Education
Master of Science (M.S.) – Data Science at FAU Erlangen-Nürnberg, Germany
October 1, 2022 - February 1, 2026Bachelor of Engineering (B.E.) – Computer Engineering at Gujarat Technological University (GTU), India
July 1, 2016 - September 1, 2020Qualifications
AWS Certified Cloud Practitioner
January 1, 2024 - May 27, 2026Google Cloud Professional Machine Learning Engineer
March 1, 2024 - May 27, 2026Microsoft Certified: Azure AI Engineer Associate
June 1, 2024 - May 27, 2026LangChain for LLM Application Development
September 1, 2023 - May 27, 2026Prompt Engineering for ChatGPT
November 1, 2023 - May 27, 2026Industry Experience
Software & Internet, Financial Services, Real Estate & Construction, Professional Services, Retail
Skills
Experience Level
Expert
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