AI / NLP Engineer (RAG & Knowledge System)

2 days ago

Noida, Uttar Pradesh, India AHRC Pvt Ltd Full time ₹ 24,00,000 - ₹ 48,00,000 per year

About the Role: We are building an AI-powered Knowledge Search Platform for the Chemical & Pharmaceutical industry using RAG (Retrieval-Augmented Generation), Large Language Models (LLMs), and Vector Databases. We are looking for an experienced AI/NLP Engineer who can design intelligent query systems capable of understanding natural language and retrieving accurate results from complex industry datasets (150+ product and company tables).

Key Responsibilities: -

Design and develop RAG-based AI Search System using Python, Vector Databases, and LLMs.

  • Build data pipelines to ingest, clean & unify complex datasets (CSV, SQL, APIs) across industries like API, FDF, Nutraceuticals, Excipients, etc.

  • Implement Semantic Search & Embedding Models (OpenAI, HuggingFace, FAISS, Pinecone, ChromaDB).

  • Create conversational interfaces or APIs for intelligent query answering (FastAPI/Flask).

  • Optimize large document handling (2+ lakh rows) to prevent token limits & performance issues.

  • Integrate AI to interpret user intent (product, supplier, certification, country, industry).

  • Deploy scalable ML solutions and ensure accuracy, relevance, and reliability of responses.

Required Skills & Expertise: Core Technical Skills:

  • Strong Python Programming

  • Experience with NLP & LLM Models (OpenAI GPT, HuggingFace Transformers)

  • Knowledge of Embeddings & Vector Databases (FAISS / Pinecone / ChromaDB)

  • Experience with RAG (Retrieval-Augmented Generation)

  • FastAPI / Flask for AI-based APIs

  • Data Cleaning, Processing & Knowledge Graphs

Database / Data Engineering:

  • Experience working with large structured datasets (Elasticsearch, MySQL, Postgres) .

  • Familiarity with multi-table relational structures .

Domain (Preferred but Optional):

  • Pharmaceutical / Chemical / Life Science Industry familiarity - Knowledge of CAS No, API, FDF, Excipients, Certifications, Regulatory data

Experience Required:

  • Minimum: 3 to 5 Years in AI/NLP - Must have delivered at least one real-world AI Search / Chatbot / RAG project - Startup or Product-based AI project experience preferred

Education: - B.Tech / M.Tech / MCA in Computer Science, AI, Data Science or related field

  • Certifications in AI/ML (OpenAI, Coursera, etc.) is a plus

Key Qualities We Expect:

  • Problem Solver & Independent Thinker

  • Ability to manage complex real-world data challenges

  • Passion for AI-driven innovation

  • Ownership mindset & long-term product vision

Job Types: Full-time, Permanent

Pay: ₹35, ₹80,000.00 per month

Benefits:

  • Health insurance
  • Provident Fund

Experience:

  • RAG-based AI Search System : 3 years (Preferred)
  • Python, Vector Databases, and LLMs: 3 years (Preferred)
  • CSV, SQL, APIs: 3 years (Preferred)
  • Elasticsearch, MySQL, Postgres: 3 years (Preferred)
  • CAS No, API, FDF: 3 years (Preferred)
  • AI/NLP real-world AI Search / Chatbot / RAG project: 3 years (Preferred)

Work Location: In person

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