Principal Applied Scientist - LLM Agents

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.

Qualifications

Minimum Qualifications:  PhD Computer Science, Mathematics, Statistics, Physics, Linguistics or a related field with a dissertation, thesis or final project centered in Machine Learning Techniques OR Masters or Bachelor's in one or more of these fields. Minimum 4 years work experience in the areas of machine learning, computer vision, natural language processing or data mining with a PhD OR 5+  years experience with a Master’s or Bachelor's. Preferred Qualifications: Scientific thinking and the ability to invent, with a track record of contributing to the advancement of the field. Demonstrated experience in successfully designing and shipping models using  machine learning, deep learning, and statistical modeling across different data domains and modalities. Experience in optimization and scaling of ML solutions for real world business use cases. Training machine learning models with large scale data using techniques such as data and model parallels. Experience in technical leadership of data science groups/projects. Track record of innovation in creating novel algorithms and advancing state of the art solutions. Demonstrated experience in engaging and influencing business leaders in solution path design.  Publications at top-tier peer-reviewed conferences or journals.  Hands on experience in applicable programming languages in a production service environment. Depending on the job there may be additional minimum requirements and/or preferred qualifications.

Responsibilities

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

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 sector—and 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@oracle.com 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.