Principal Data Scientist I (AI/NLP & Generative AI)

Location: London Wall, United Kingdom; other location: Amsterdam, Netherlands

Salary: €86,900–€144,600 base pay when performed in NLD Amsterdam (Radarweg)

Company

hirify.global provides information, analytics, and data products supporting scientific research, healthcare, health education, and clinical practice.

What you will do

• Set technical direction and architectural standards for AI/ML, NLP, generative AI, LLM-powered workflows, RAG, retrieval, ranking, and recommendation solutions.
• Guide the integration of scientific metadata, ontologies, taxonomies, and knowledge assets into reusable AI workflow patterns.
• Review code, architecture, and technical decisions, providing hands-on support for high-priority or high-risk work.
• Define shared quality, evaluation, monitoring, governance, and compliance frameworks across data science teams.
• Mentor multiple teams, harmonize tooling and delivery practices, and represent data science in senior management and governance meetings.
• Translate business priorities, risks, and complex technical challenges into practical technical direction.

Requirements

• Significant experience in data science, AI, machine learning, NLP, information retrieval, or a related field, including senior- or principal-level experience.
• Strong hands-on experience building AI/ML, NLP, generative AI, and retrieval-based systems.
• Expertise with LLMs, including fine-tuning, prompt engineering, grounding strategies, and responsible AI practices.
• Experience defining technical standards, evaluation frameworks, or governance processes across multiple teams.
• Working knowledge of AI governance, model risk, and compliance requirements.
• Strong Python skills and solid machine learning fundamentals.
• Experience with large-scale text or content-rich datasets and modern AI/ML frameworks.
• Experience with RAG, semantic, vector, or hybrid search, and experimentation approaches measuring user impact.
• Familiarity with cloud platforms and modern software engineering practices.
• Excellent communication and stakeholder management skills, including representing technical work to senior and non-technical audiences.
• Strong mentoring and leadership skills, with experience influencing and coordinating across multiple teams.

Culture & Benefits

• Flexible working hours allow adjustments during the day to work during the most productive times.
• Focus on work-life balance and wellbeing initiatives.
• Shared parental leave, study assistance, and sabbaticals are available.
• Benefits are provided according to the employee's country of location.