Principal Applied Scientist - LLM Agents

Principal Applied Scientist

Oracle Health Data Intelligence (HDI) is at the forefront of leveraging data and AI to transform the healthcare and life sciences industries. We're developing cutting-edge generative AI, NLP, and large language model (LLM) solutions that address some of the most complex challenges in healthcare. As a Principal Applied Scientist (IC4), you'll play a critical leadership role in designing, building, and scaling AI systems that power clinical decision support, operational optimization, and population health transformation. This role is ideal for an experienced applied scientist who combines hands-on technical depth with strategic vision. You'll drive the development of novel modeling techniques, lead complex research and development initiatives, and influence the direction of Oracle's AI strategy in healthcare. You will collaborate closely with engineering, product, and science leadership to translate real-world clinical and life sciences problems into scalable AI solutions deployed across Oracle's global healthcare platforms.

Responsibilities

Strategic Modeling & Development

Lead the fine-tuning, evaluation, and deployment of large language models (LLMs), small language models, and retrieval-augmented generation (RAG) pipelines for production-scale healthcare use cases. Architect and guide the development of AI solutions for high-impact applications such as clinical summarization, patient risk stratification, and care recommendation workflows. Pioneer the use of modular AI frameworks (e.g., LangChain, agentic systems) to enable dynamic and context-aware healthcare solutions.

Technical Leadership & Evaluation

Define evaluation frameworks to assess accuracy, robustness, and safety of models in regulated healthcare environments. Lead root-cause analyses and model performance reviews, setting standards for evaluation methodologies and optimization cycles. Provide mentorship and technical guidance to junior scientists and engineers, raising the overall technical bar of the team.

Cross-Functional Collaboration & Integration

Partner closely with product, engineering, and compliance teams to integrate AI models into Oracle's cloud-based healthcare ecosystem, ensuring scalability, security, and regulatory alignment. Represent applied science in cross-organizational forums, influencing roadmap decisions and shaping product strategy through scientific insights.

Innovation & Thought Leadership

Stay ahead of the curve on advances in Generative AI, NLP, and healthcare AI research. Propose and prototype innovative techniques, contributing to Oracle's IP through publications, patents, or internal frameworks. Identify emerging opportunities to apply AI in ways that advance clinical outcomes and operational excellence across healthcare and life sciences.

What You'll Bring

Education

PhD in Computer Science, NLP, Machine Learning, or a related field; OR Master's degree with 6+ years of relevant applied AI / ML experience, including leadership of complex modeling efforts.

Experience

Demonstrated success training, fine-tuning, or deploying LLMs or small language models at scale. Proven experience designing and evaluating LLM agents for real-world applications, ideally in regulated industries. Deep familiarity with RAG architectures, LangChain, or comparable frameworks. Prior work applying AI / ML in healthcare, bioinformatics, or life sciences is highly desirable.

Skills

Expert knowledge of machine learning, NLP, deep learning, and model evaluation techniques. Proficiency in Python, TensorFlow / PyTorch, and open-source LLM tooling. Strong ability to articulate complex technical concepts to cross-functional stakeholders. Experience influencing strategy, mentoring teams, and driving adoption of AI solutions within large organizations.

Career Level - IC4

Disclaimer : Certain US customer or client-facing roles may be required to comply with applicable requirements, such as immunization and occupational health mandates.

Range and benefit information provided in this posting are specific to the stated locations only. US : Hiring Range in USD from : $120,100 to $251,600 per annum. May be eligible for bonus, equity, and compensation deferral. Oracle maintains broad salary ranges for its roles in order to account for variations in knowledge, skills, experience, market conditions and locations, as well as reflect Oracle's differing products, industries and lines of business. Candidates are typically placed into the range based on the preceding factors as well as internal peer equity. Oracle US offers a comprehensive benefits package which includes the following :

1. Medical, dental, and vision insurance, including expert medical opinion

2. Short term disability and long term disability

3. Life insurance and AD&D

4. Supplemental life insurance (Employee / Spouse / Child)

5. Health care and dependent care Flexible Spending Accounts

6. Pre-tax commuter and parking benefits

7. 401(k) Savings and Investment Plan with company match

8. Paid time off : Flexible Vacation is provided to all eligible employees assigned to a salaried (non-overtime eligible) position. Accrued Vacation is provided to all other employees eligible for vacation benefits. For employees working at least 35 hours per week, the vacation accrual rate is 13 days annually for the first three years of employment and 18 days annually for subsequent years of employment. Vacation accrual is prorated for employees working between 20 and 34 hours per week. Employees working fewer than 20 hours per week are not eligible for vacation.

9. 11 paid holidays

10. Paid sick leave : 72 hours of paid sick leave upon date of hire. Refreshes each calendar year. Unused balance will carry over each year up to a maximum cap of 112 hours.

11. Paid parental leave

12. Adoption assistance

13. Employee Stock Purchase Plan

14. Financial planning and group legal

15. Voluntary benefits including auto, homeowner and pet insurance

The role will generally accept applications for at least three calendar days from the posting date or as long as the job remains posted.

Career Level - IC4

About Us

As a world leader in cloud solutions, Oracle uses tomorrow's technology to tackle today's challenges. We've partnered with industry-leaders in almost every sectorand continue to thrive after 40+ years of change by operating with integrity. We know that true innovation starts when everyone is empowered to contribute. That's why we're committed to growing an inclusive workforce that promotes opportunities for all. Oracle careers open the door to global opportunities where work-life balance flourishes. We offer competitive benefits based on parity and consistency and support our people with flexible medical, life insurance, and retirement options. We also encourage employees to give back to their communities through our volunteer programs. We're committed to including people with disabilities at all stages of the employment process. If you require accessibility assistance or accommodation for a disability at any point, let us know by emailing accommodation-request_mb@ or by calling +1 888 404 2494 in the United States. Oracle is an Equal Employment Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, sexual orientation, gender identity, disability and protected veterans' status, or any other characteristic protected by law. Oracle will consider for employment qualified applicants with arrest and conviction records pursuant to applicable law.