Job Title: Data Scientist (AI) SDE-3
Location: Noida / Bangalore
Experience: 5–8 Years
Employment Type: Full time

About PhysicsWallah:
PhysicsWallah (PW) is one of India's leading education technology companies, empowering millions of learners through innovative digital learning solutions. We are building next-generation AI platforms to transform education through personalized learning, intelligent tutoring, content generation, and AI-powered learning experiences.
As an Data Scientist SDE-3, you will play a key technical leadership role in shaping our Generative AI and Large Language Model (LLM) initiatives. You will work closely with Product, Engineering, and AI teams to build scalable, production-grade AI systems that power experiences for millions of students.
If you're passionate about solving complex AI challenges and building state-of-the-art LLM applications at scale, we'd love to hear from you.

Roles & Responsibilities:
Design, develop, and deploy production-grade Generative AI and LLM-powered applications.




Architect and implement scalable Retrieval-Augmented Generation (RAG) pipelines for knowledge-intensive AI systems.
Fine-tune foundation models using techniques such as LoRA, QLoRA, PEFT, and RLHF.
Optimize LLM inference for latency, throughput, scalability, and infrastructure cost.
Build intelligent Agentic AI and multi-agent systems capable of autonomous reasoning and task execution.
Design scalable vector search architectures using modern vector databases.
Develop robust evaluation pipelines, including LLM-as-a-Judge methodologies for automated quality assessment.
Build and maintain end-to-end ML workflows, experimentation pipelines, and model observability.
Collaborate with Product Managers, Engineering teams, and Data Scientists to translate business problems into AI-powered solutions.
Drive architectural decisions, establish AI best practices, and mentor engineers across teams.
Stay up to date with the latest advancements in Generative AI, LLM opt

📌 Senior Data Scientist (Bengaluru)
🏢 PW (PhysicsWallah)
📍 Bengaluru