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    Home/Jobs/Sr. AI / ML Engineer – OpenAI Expert

    Sr. AI / ML Engineer – OpenAI Expert

    Zensar

    Pune
    8+ years
    Today
    ₹38–63 LPA
    Full-time
    Onsite

    Skills Required

    OpenAI
    GPT-4o
    LangChain
    Fine-tuning
    OpenAI Agents SDK
    LlamaIndex
    Azure OpenAI Service
    OpenAI Evals
    LLM
    RAG
    Gen AI
    LangGraph
    Assistants API
    Function Calling
    Python

    Description

    We are looking for a highly skilled Sr. AI / ML Engineer with deep OpenAI expertise to lead the design, development, and deployment of enterprise-grade AI solutions for Zensar's global client portfolio.

    Company: Zensar

    Role: Sr. AI / ML Engineer – OpenAI Expert

    Location: Pune, Maharashtra, India

    Experience:

    • 8+ years of overall experience in AI / ML engineering
    • at least 3 years of hands-on OpenAI platform expertise

    Qualification:

    • Bachelor's or Master's degree in Computer Science, AI, Machine Learning, or equivalent practical experience

    Role Focus:

    • Lead end-to-end design and delivery of OpenAI-powered solutions
    • Architect and implement multi-agent pipelines
    • Leverage the full OpenAI API surface
    • Design and execute fine-tuning strategies
    • Build high-performance semantic search and retrieval layers
    • Develop scalable ML pipelines
    • Drive engineering excellence
    • Mentor junior engineers
    • Collaborate with delivery managers and client stakeholders
    • Monitor model performance, cost efficiency, and safety in production

    Nice to have:

    • Contributions to open-source AI projects
    • Published technical writing on OpenAI / LLM topics
    • Familiarity with open-source LLMs (LLaMA 3, Mistral, Phi-3)
    • Prior exposure to Zensar's ZenseAI.Data platform, Snowflake, dbt, or Informatica IICS

    More skills:

    OpenAI APIs, o-series reasoning models, PyTorch, scikit-learn, async programming, API design, scalable backend systems, LLM orchestration frameworks, MLflow, Weights & Biases, CI/CD for ML

    Other:

    • Part of the $4.8 billion RPG Group
    • Community of 10,000+ innovators across 30+ global locations
    • Equal employment opportunity (EEO) and affirmative action employer
    • Committed to creating an inclusive workplace

    Prepare for this role

    Recommended resources to build the skills for this position. Sponsored.

    Python for Everybody Specialization

    Coursera

    Learn Python from scratch — variables, data structures, web scraping, and databases.

    Python 3 Programming Specialization

    Coursera

    Intermediate Python covering classes, inheritance, APIs, and data processing.

    Generative AI with Large Language Models

    Coursera

    Comprehensive LLM course covering transformer architecture, fine-tuning, RLHF, and deployment.

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