Machine Learning Advisor - HIH - Evernorth

About Evernorth Evernorth℠ exists to elevate health for all, because we believe health is the starting point for human potential and progress. As champions for affordable, predictable and simple health care,

we solve the problems others don’t, won’t or can’t.

Our innovation hub in India will allow us to work with the right talent, expand our global footprint, improve our competitive stance, and better deliver on our promises to stakeholders. We are passionate about making healthcare better by delivering world-class solutions that make a real difference.

We are always looking upward. And that starts with finding the right talent to help us get there.

Excited to grow your career? We value our talented employees, and whenever possible strive to help one of our associates grow professionally before recruiting new talent to our open positions. If you think the open position, you see is right for you, we encourage you to apply!

Job Description We're seeking a talented AI/ML Engineer to design, develop, and deploy cutting-edge AI and RAG/machine learning solutions. You'll work with state-of-the-art models and technologies, contributing to projects that have the potential to revolutionize industries.

Responsibilities

• Designed and implemented a custom RAG architecture that integrated with proprietary internal data, reducing LLM hallucinations.
• Developed and managed data pipelines for processing and vectorizing unstructured data (PDFs, documents, etc.).
• Engineered and optimized retrieval methods, including semantic search with vector similarity (cosine similarity), to enhance context relevance for the generative model.
• Benchmarked and evaluated RAG pipeline performance using metrics such as faithfulness and answer relevance, driving improvement in overall system quality.
• Collaborated with data scientists and product teams to design and deploy agentic RAG systems for complex, multi-step queries.
• Work with large language models (LLMs) from providers like OpenAI and Anthropic
• Collaborate with cross-functional teams to integrate AI capabilities into our applications
• Conduct experiments and analyze results to improve model performance
• Stay updated with the latest advancements in AI/ML and propose innovative solutions

Required Skills

• 3 - 4 + years of development experience in RAG & Generative AI: Retrieval-Augmented Generation (RAG), RAG Fusion, Agentic AI, Large Language Models (LLMs), Prompt Engineering.
• Frameworks: FastAPI, Uvicorn(ASGI Server), Pydantic (Data Validation),Pydantic-Settings (Config Management), LangChain, Hugging Face Transformers.
• Vector Databases: pgVector.
• Testing: pytest 8.4.1
• Deployment: Docker, OpenShift, Jenkins (CI/CD)
• Programming: Python (NumPy, Pandas), SQL.
• Machine Learning/NLP: Deep Learning, NLP, Text Embeddings, Semantic Search, Model Evaluation.
• Tools: Git, RESTful APIs.
• Strong proficiency in Python

Preferred Skills

• Good knowledge machine learning concepts and algorithms (or equivalent education/certification)
• Experience with cloud-based ML platforms
• Proficiency in data pre-processing and feature Engineering
• Designed and implemented a GenAI based custom RAG system. that integrated with proprietary internal data, reducing LLM hallucinations.

Required Experience & Education

• 8-10 years of development experience with 2-3 years in RAG & Generative AI technology space
• Good understanding of database.
• Experience with Health care information domains preferred
• Experience with version management tools – Git preferred
• 3+ years being part of Agile teams – Scrum
• Prior experience in onsite/offshore setup or model
• College degree in Computer Science, Information Technology, or a related field preferred, but not required.

Equal Opportunity Statement Evernorth is an Equal Opportunity Employer actively encouraging and supporting organization-wide involvement of staff in diversity, equity, and inclusion efforts to educate, inform and advance both internal practices and external work with diverse client populations. About Evernorth Health Services Evernorth Health Services, a division of The Cigna Group, creates pharmacy, care and benefit solutions to improve health and increase vitality. We relentlessly innovate to make the prediction, prevention and treatment of illness and disease more accessible to millions of people. Join us in driving growth and improving lives.