Principal Data Scientist: AI, NLP & GenAI Leader

RX Brasil; Amsterdam; On-site; EUR 87,000 - 145,000; Full time

Job summary

Elsevier, a global leader in information and analytics, seeks a Principal Data Scientist (AI/NLP & Generative AI) to provide technical direction and governance across multiple data science teams in life sciences products.

You will shape architectures for LLM-powered workflows, RAG and retrieval, mentor teams, and ensure high-quality, compliant delivery while collaborating with senior stakeholders.

Qualifications

• Senior or principal level experience in data science, AI, NLP, or related field.
• Hands-on background building AI/ML, NLP, and retrieval-based systems; able to dive into detail when needed.
• Proficiency with LLMs, fine-tuning, prompts, grounding, and responsible AI.
• Experience defining technical standards, evaluation frameworks, or governance across teams.
• Knowledge of AI governance, model risk and regulatory requirements.
• Strong Python skills and ML fundamentals.
• Experience with large text datasets and modern ML frameworks.
• Familiarity with cloud platforms and software engineering practices.

Responsibilities

• Set technical direction and architectural standards for AI/ML across teams.
• Define shared evaluation and monitoring frameworks for quality and trust.
• Lead AI governance activities and ensure regulatory adherence.
• Mentor and coach multiple data science teams and align with business priorities.
• Represent DS in senior meetings and communicate strategy to non-technical stakeholders.

Skills

Python programming

Mentoring & leadership

Stakeholder management

Communication

Tools

LLMs

RAG systems

NLP

Cloud platforms

Job description

Elsevier, a global leader in information and analytics, seeks a Principal Data Scientist (AI/NLP & Generative AI) to provide technical direction and governance across multiple data science teams in life sciences products.

You will shape architectures for LLM-powered workflows, RAG and retrieval, mentor teams, and ensure high-quality, compliant delivery while collaborating with senior stakeholders.