Senior AI Developer (Generative AI, RAG, LLMs)

About the role

Volmatica is hiring a Senior AI Developer in Bahria Town, Phase IV, Rawalpindi, on an on-site US shift (6 PM to 3 AM, Monday to Friday). The role focuses on building real-world generative AI applications such as RAG systems, AI assistants and intelligent automation. Only candidates with strong, hands-on experience in the listed technologies will be considered.

Key responsibilities

• Design and develop AI-powered applications using Python and modern web technologies.
• Build and integrate generative AI solutions using LLMs, AI APIs and AI frameworks.
• Develop RAG-based applications, AI assistants and intelligent automation workflows.
• Work with embeddings, vector databases and retrieval pipelines.
• Build and maintain backend services with Python (FastAPI) and REST APIs.
• Collaborate with frontend developers on user-friendly interfaces and with cross-functional teams on AI-driven solutions.
• Integrate AI models and cloud-based AI services into scalable applications and optimise performance, reliability and scalability.

Required profile

• Strong knowledge of Python and backend development.
• Hands-on experience with generative AI technologies and LLM-based applications.
• Understanding of RAG architecture, embeddings, vector databases and prompt engineering.
• Experience with FastAPI, REST APIs and PostgreSQL; familiarity with LangChain, LangGraph or similar tools.
• Preferred: API integration experience (OpenAI, Azure OpenAI), React.js and cloud platform knowledge (AWS/Azure).

Required skills

• Generative AI, LLMs, prompt engineering, RAG, AI agents, LangChain, LangGraph, OpenAI APIs, Azure OpenAI, Hugging Face, embeddings, vector databases (PGVector, Pinecone, FAISS)
• Backend: Python (FastAPI), REST APIs, Node.js, microservices, authentication and security
• Databases: PostgreSQL, SQL/NoSQL, query optimisation, vector database integration
• Cloud and DevOps: CI/CD, Docker, AWS/Azure, monitoring, deployment automation

What we offer

• Market-competitive salary based on skills and experience
• Fuel allowance
• Bi-annual increments
• Career growth in a fast-paced, collaborative environment