Conversational AI Designer - AI Health Assistant (x/f/m)

We provide a unified Operating System for health professionals that spans appointment management, electronic health records, teleconsultations, billing, patient communication, care coordination, and – increasingly – embedded AI features. Our platform powers 25M appointments and 8M health reminders monthly, with a team of 900+ in Tech & Product.

We believe technology & AI can help people be healthier. To make that happen, we're building both a revolutionary OS for health professionals and a health companion for people that integrates seamlessly with our OS. This companion harnesses AI, clinical expertise, and comprehensive health data, all within an accessible and modern design. To drive this ambition, we’re strengthening the Health Companion team working on the AI Health Assistant.

What you'll do

As the Conversational AI Designer for the AI Health Assistant, you will build and scale one of Doctolib's most ambitious products – an AI health assistant that will answer people’ health questions, provide verified medical information, guide them through the care pathway, and proactively support them. This product will be part of a revolutionary health companion that will transform how +90 million people prevent health problems, access care, and manage their health daily. Our vision is to create the world's best AI Health Assistant that empowers people to be healthier through personalized, proactive, and intelligent guidance recommended by their healthcare professionals.

This is a unique opportunity to leverage cutting-edge agentic AI to build a product that will have a profound impact on millions of lives. You will pioneer a new era of healthcare interfaces, moving from reactive to proactive assistance, from explicit to implicit interactions, and from command-based to intent-based experiences.

What we expect from you

• Design, prototype, and iterate on complex conversational flows and interaction models for the AI Health Assistant across various health use cases, ensuring clear, empathetic, and clinically safe user experiences.
• Define the AI Health Assistant's persona, tone of voice, and language guidelines, ensuring consistency with Doctolib’s brand and the sensitive nature of healthcare interactions.
• Translate complex medical information and care pathways into accessible, natural, and empowering dialogue that guides users effectively.
• Write, edit, and maintain all in-bot copy, prompts, responses, error messages, and system turns, ensuring clarity, accuracy, and compliance with medical and regulatory standards.
• Continuously monitor, analyze, and refine conversational data (e.g., failed intents, handoff points) to drive measurable improvements in dialogue effectiveness, user trust and agent performance.
• Conduct or support user research, A/B testing, and usability studies focused on conversational flows to gather feedback and validate design decisions.
• Partner closely with ML Engineers to define agent requirements (intents, entities, training phrases) and optimize model performance for high accuracy with a constant focus on safety and user experience.
• Collaborate cross-functionally with Product Managers and Medical Experts to translate user insights and clinical knowledge into impactful conversational features.

Who you are

• You have 5+ years of professional experience as a Conversational Designer, UX Writer, or AI Trainer, with a portfolio showcasing complex, multi-turn conversational flows
• You bring deep expertise in conversational interfaces for AI-native products, ideally in regulated or high-stakes domains.
• You have proven experience designing and launching conversational products at massive scale (millions of users),  demonstrating success in shaping user habits and driving engagement/retention metrics
• You possess a good understanding of LLMs, Evals, and have experience collaborating with ML Engineers to optimize model performance.
• You excel at writing production-grade, empathetic, and clinically precise conversational copy, error messages, and prompts.
• You are customer-obsessed and analytical, using qualitative user research and quantitative conversational data (e.g., failure points, handoff metrics) to drive design decisions.
• You possess excellent cross-functional communication skills, with the ability to advocate for conversational design best practices to product, engineering, and medical teams.
• You are fluent in English and French; any other EU languages are a plus.

What we offer

• Free comprehensive health insurance for you and your children

• 25 days of paid vacation per year, plus up to 14 days of RTT

• Free mental health and coaching services through our partner Moka.care

• Work from abroad for up to 10 days per year thanks to our flexibility days policy

• Lunch vouchers (Swile card) worth €8.50 per working day, with €4.50 covered by Doctolib

• A subsidy from the work council to refund part of the membership to a sport club or a creative class

• 50% reimbursement of your public transport subscription

• Parent Care Program: receive one additional month of leave on top of the legal parental leave

• For caregivers and workers with disabilities, a package including an adaptation of the remote policy, extra days off for medical reasons, and psychological support

• Relocation support in case of international mobility

• Access to the best AI tools for coding, development and dedicated training

The interview process

• HR Screen
• Hiring Manager Interview
• Behavioral Interview
• Case Study
• At least one reference check

Job details

• Permanent position
• Full-time
• Hybrid work mode (3 days/week in the Paris office locate in Levallois-Perret)
• Start date: as soon as possible

If you would like to find out more about tech life at Doctolib, feel free to read our latest Medium blog articles!

At Doctolib, we are committed to improving access to healthcare for everyone. This translates into our recruitment process. We evaluate candidates based solely on qualifications and motivation, without any form of discrimination.

The more diverse ideas are heard, the more our product will truly improve healthcare for all. You are welcome to apply to Doctolib, regardless of your gender, religion, age, sexual orientation, ethnicity, disability.

To ensure equal opportunities, we invite you to exclude personal information (e.g. pictures, age) from your applications. If you require any accommodation, please let us know for support during the hiring process.

Join us in building the healthcare we all dream of!

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Please contact hr.dataprivacy(at)doctolib.com for inquiries or to exercise your rights.