Conversational Data Scientist

Would you like to build the future of digital customer interaction at Nationale Nederlanden? For an Empowered Product Team (EPT) within a strategic transformation program, we are looking for an experienced Conversational Data Scientist who develops and optimizes dynamic chat interactions on our new conversational platform (Sanne

GPT) and ensures customers are effectively helped within two minutes.

• Develop and optimize dynamic conversational flows based on LLMs (Large Language Models)
• Design and implement intelligent prompts, embeddings, and retrieval mechanisms (RAG)
• Integrate conversational solutions with backend systems via APIs and CMP servers
• Analyze chat data, user interactions, and AI output to continuously improve models and conversations
• Develop data models and experiments (A/B testing) to increase conversational performance
• Improve and train models based on metrics such as answer quality, conversion rate, and customer satisfaction
• Validate and fine‑tune AI models for accuracy, bias, and reliability
• Collaborate with UX, Researcher, Conversational Experts, Developers, and BI Analysts to realize a continuous improvement loop

• Salary between €5,339 and €7,119 based on a 36‑hour week, depending on knowledge and experience
• 13th month and holiday allowance included in monthly salary
• 27 vacation days for a 5‑day working week and three Diversity Days
• Modern pension administered by Be Frank
• Plenty of training and learning opportunities
• Business Card 2nd class, giving unlimited travel for work and personal use
• Travel allowance for personal kilometres travelled
• Allowances for setting up a home office and for internet use

• WO or HBO degree in Data Science, AI, Computer Science, or similar
• Experience with LLMs, RAG, NLP, and generative AI applications
• Experience with Python and frameworks such as Lang Chain, Llama Index, or similar
• Knowledge of API integrations, microservices, CMP servers, and event‑driven architectures
• Experience with data analysis, experiments (A/B testing), and model optimization
• Affinity with conversational design and chatbot development
• Knowledge of cloud platforms (Azure, AWS) and model deployment
• Strong analytical skills and a data‑driven mindset
• Proactive attitude and ability to work in an agile EPT
• Fluency in Dutch and English

You will work in a multidisciplinary Empowered Product Team (EPT) with Conversational Experts, AI Developers, UX Designers, Customer Researchers, and Business Analysts. You will also collaborate intensively with the Sanne

GPT team to further develop best practices, models, and frameworks within NN. Additionally, you will be part of a Data & AI Guild, where you share knowledge and explore new techniques with other data and AI professionals at NN.

Any questions? Contact Hilde Diemel, Talent Acquisition Specialist, at