Senior Data Scientist (GenAI)

Key Responsibilities

• Design and implement autonomous AI agents to handle tasks like:
  • Benefit explanation
  • Prior authorization (PA) reasoning
  • Drug alternatives search
  • Claim denial explanation
• Integrate OpenAI models (GPT-4 or GPT-4o) or other LLMs with enterprise systems via REST APIs.
• Build workflows using orchestration tools (e.g., LangChain, Microsoft Semantic Kernel, or custom agents).
• Create reusable prompt chains, tools, and routing logic based on user intent.
• Collaborate with PBM SMEs to translate complex pharmacy logic into AI workflows.
• Define error handling, logging, and fallback protocols for production safety.
• Work with internal teams on compliance, PHI handling, and access control.

Required Skills

• Proven Experience working with LLMs and in agentic AI (e.g., LangChain agents, tool use, memory)
• Strong understanding of prompt engineering, embeddings, and context management
• Skilled in deploying advanced evaluation metrics for agentic performance (e.g., task success, coherence, safety). Experience with evaluation tools (TruLens, RAGAS, LangSmith) and optimization techniques (LoRA, QLoRA etc.).
• Experience with external API Integration and data transformation and integrating AI workflows into web applications or chatbots
• DevOps skills to deploy and monitor AI agents in production
• Track record of leading generative AI initiatives from concept to deployment
• Strong coding skills; Proficiency in Python or Java

Nice-to-Have

• Experience with Azure AI stack
• Familiarity with PBM domain (claims, PA, formularies, etc.)
• Experience integrating with healthcare APIs or HL7/FHIR systems
• Familiarity with HIPAA and data security best practices

Pay:

The wage range for this role takes into account the wide range of factors that are considered in making compensation decisions including but not limited to skill sets; experience and training; licensure and certifications; and other business and organizational needs. The disclosed range estimate has not been adjusted for the applicable geographic differential associated with the location at which the position may be filled. At Fractal, it is not typical for an individual to be hired at or near the top of the range for their role and compensation decisions are dependent on the facts and circumstances of each case. A reasonable estimate of the current range is: $120,000 - $140,000. In addition, you may be eligible for a discretionary bonus for the current performance period.

Benefits:

As a full-time employee of the company or as an hourly employee working more than 30 hours per week, you will be eligible to participate in the health, dental, vision, life insurance, and disability plans in accordance with the plan documents, which may be amended from time to time. You will be eligible for benefits on the first day of employment with the Company. In addition, you are eligible to participate in the Company 401(k) Plan after 30 days of employment, in accordance with the applicable plan terms. The Company provides for 11 paid holidays and 12 weeks of Parental Leave. We also follow a "free time" PTO policy, allowing you the flexibility to take time needed for either sick time or vacation.

If you like wild growth and working with happy, enthusiastic over-achievers, you'll enjoy your career with us!

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