PubMatic

Principal/Senior/Software Engineer (AI-Powered Advertising Agents - AgenticOS)

PubMatic
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24 days ago
Pune, IndiaSenior / Staff+

Responsibilities

  • Lead the end-to-end design, development, deployment, and release of AI-driven features.
  • Create scalable, secure, and robust AI architectures and technical design documents.
  • Fine-tune, deploy, evaluate, monitor, and optimize large language models.
  • Develop AI agents using RAG, multi-agent orchestration, tool use, multi-step planning, and short- and long-term memory.
  • Design and optimize vector databases, indexing algorithms, and external knowledge integrations.
  • Develop and optimize prompts, evaluation workflows, observability, tracing, and guardrails for agentic systems.
  • Collaborate with data scientists, engineers, and product teams to integrate AI capabilities into products and internal tools.
  • Communicate complex technical ideas and results to technical and non-technical stakeholders.

Requirements

  • 2–10 years of total experience with strong understanding of LLMs, transformer architecture, attention mechanisms, and hyperparameter tuning.
  • Proven experience designing and building AI agents, including multi-agent orchestration, tool-use patterns, multi-step planning, and agent memory architectures.
  • Hands-on experience with LangGraph, CrewAI, or AutoGen and RAG pipelines using documents, databases, or APIs.
  • In-depth knowledge of vector databases and indexing algorithms, with practical experience using FAISS, Pinecone, Weaviate, or Milvus.
  • Experience with agent observability, tracing, and guardrails, including Langfuse or equivalent tools.
  • Proficiency in prompt engineering and evaluation of model quality, relevance, and efficiency.
  • Proficiency in Python and experience with TensorFlow, PyTorch, and Hugging Face Transformers.
  • Experience with data preprocessing, vectorization, and large-scale datasets.
  • Bachelor’s degree in engineering or an equivalent degree.
  • Preferred experience with graph-based architectures, knowledge graph embeddings, graph neural networks, custom model training, AWS, GCP, Azure, Docker, Kubernetes, programmatic advertising, RTB, ad auctions, MCP, or AI research contributions.

Benefits

  • Hybrid work schedule with three days in the office and two days working remotely.
  • Paternity and maternity leave.
  • Healthcare insurance.
  • Broadband reimbursement.
  • Office kitchen with healthy snacks and drinks and catered lunches.
PubMatic

About PubMatic

1,001-5,000 employees
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