AI / RAG Developer

3 days ago

Faridabad, Haryana, India VOCSO Technologies P Ltd Full time ₹ 3,00,000 - ₹ 4,20,000 per year

Job Summary:

We are looking for a 2* to 4 year* experienced AI & Data Retrieval Engineer to develop natural language query (NLQ) and Text-to-SQL systems for PostgreSQL. The ideal candidate has expertise in LLMs, NLP, AI-powered SQL generation, and vector search using tools like LangChain, LlamaIndex, Haystack, and pgVector. You will design and optimize AI-driven search and data retrieval solutions, enabling accurate and efficient query execution.

Key Responsibilities:

  • Develop AI-powered query systems: Implement LLM-based SQL generation and vector search techniques for efficient natural language querying on PostgreSQL.
  • Integrate NLP & Database Technologies: Use LangChain SQL Agent, LlamaIndex, Haystack, pgVector, FAISS, or Pinecone for efficient retrieval.
  • Optimize Database Queries: Ensure fast and accurate retrieval from PostgreSQL by optimizing SQL queries and indexing techniques.
  • Implement Vector Search: Use pgVector or FAISS for semantic search on unstructured database fields.
  • Fine-Tune LLMs: Improve accuracy by fine-tuning OpenAI, Hugging Face models, or custom LLMs on database schema.
  • API Development & Integration: Build APIs that allow front-end applications and BI tools to interact with AI-driven queries.
  • Security & Compliance: Implement access control and secure querying to prevent SQL injection and ensure data privacy.
  • Monitor Performance: Continuously improve accuracy, response time, and efficiency of AI-generated SQL queries.

Required Skills & Experience:

  • 1+ years of experience in AI-powered SQL query generation, NLP, and PostgreSQL.
  • Hands-on experience with LangChain, LlamaIndex, Haystack, or similar AI-powered search frameworks.
  • Strong understanding of SQL query optimization and PostgreSQL indexing strategies.
  • Experience with vector search databases like pgVector, FAISS, Weaviate, Pinecone.
  • Familiarity withLLMs (GPT-4, Llama 2, Claude, DeepSeek Coder, etc.) for SQL generation.
  • Proficiency inPython (FastAPI, Flask, Django) and AI/ML libraries (Transformers, OpenAI API, Hugging Face).
  • Experience in building AI-driven chatbot or search systems is a plus.
  • Knowledge ofBI tools (Metabase, Superset, Power BI) and their integration with AI-powered query systems.
  • Preferred Qualifications:Experience working onlarge-scale NLP & database integration projects.
  • Previous work with RAG (Retrieval-Augmented Generation) architectures.
  • Knowledge of embedding models (BERT, OpenAI Embeddings, Cohere, etc.).
  • Experience in deploying LLM-based SQL query engines in production environments.

Job Type: Full-time

Pay: ₹25, ₹35,000.00 per month

Work Location: In person

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