Staff Engineer Frontend - Paris (x/f/m)

🌍 About the Team You will join the Healthcare Access stream within the Patient Domain at Doctolib. This stream sits at the very heart of our product: it owns the end-to-end journey patients take to access care, from discovering the right practitioner to booking their appointment and beyond. Our teams are tackling some of the most exciting and high-impact challenges in digital health: optimizing search and discovery experiences to help patients find the right care faster, building seamless appointment booking funnels that work at massive scale, crafting a delightful and reliable patient app experience , and expanding access to healthcare for new users and new use cases across Europe. As a Staff Engineer in this stream, your work will directly shape the interfaces and systems used by millions of patients every day . This is where web performance, frontend architecture, and user experience are not just engineering concerns - they are the foundation of how people access their health. 🎯 Your Impact As a Staff Engineer , you will be a key technical driver for the Healthcare Access stream. With a strong frontend expertise, you will shape the technical vision of our patient-facing products, ensure architectural excellence, and have a lasting impact on the way we build and evolve our platform at scale. In a stream where organic search and discoverability are key growth levers, you will also be a champion of web performance and search visibility , ensuring our patient-facing surfaces excel on Core Web Vitals, SEO, and emerging Generative Engine Optimization (GEO) practices. You will work in close partnership with Engineering Managers, Principal Engineers, Product Managers, and Designers to deliver high-impact projects that simplify and improve how patients access healthcare. 🔧 What You Will Do Technical Leadership Define and drive the frontend technical strategy for the Healthcare Access stream, ensuring architectural decisions align with Doctolib's product and engineering vision Lead technical discoveries, architect complex systems, and build consensus on technical direction across engineering, product, and leadership teams Identify and introduce new frontend technologies, frameworks, and methodologies when relevant Engineering Excellence Be deeply hands-on : write code, lead technical design, and solve hard engineering problems alongside your teammates Demonstrate deep expertise in React and the broader frontend ecosystem (TypeScript, performance optimization, accessibility, design systems...) Champion web performance as a first-class concern: define and track Core Web Vitals (LCP, INP, CLS), establish performance budgets, and drive continuous improvements across patient-facing surfaces Embrace and champion AI-augmented engineering : leverage AI coding tools (GitHub Copilot, Claude Code...) to boost your own productivity and help the team adopt these practices effectively Drive efforts to reduce technical debt, improve system reliability, and proactively mitigate risks Cross-Team Impact Define and build cross-functional programs delivering end-to-end solutions across multiple teams Connect teams across the stream by removing collaboration barriers and establishing knowledge-sharing rituals Mentor and Scale Actively mentor and guide engineers across multiple teams through code reviews, pairing sessions, and technical guidance Contribute to hiring , knowledge-sharing, and building a culture of engineering excellence across the stream User First Champion a user-centric approach and lead simplification initiatives that reduce complexity and improve the patient experience Drive SEO and GEO excellence : ensure our pages are discoverable by both traditional search engines and AI-powered assistants, leveraging structured data, semantic HTML, and content clarity at scale 🛠️ Our Tech Stack Frontend : React, TypeScript, React Native (mobile) Backend : Java/Spring Boot, Ruby on Rails Data : PostgreSQL, OpenSearch, Redis Practices : continuous deployments, CI/CD pipeline, test-driven development, feature flags, canary deployments 🙋 What you’ll bring Before you read on, if you don't have the exact profile described below, but you feel this job description matches your skill set, we still encourage you to apply! You’ll be a great fit if: You have extensive experience (8+ years) as a Staff or Principal Engineer with a strong frontend specialization You are a technical leader who can influence strategy and build alignment across teams and leadership You have deep expertise in React and frontend architecture at scale, and are comfortable navigating the full stack when needed You think in terms of system design , able to spot single points of failure and design for reliability and scalability You have a strong understanding of web performance (Core Web Vitals, Lighthouse, performance budgets) and search engine visibility (SEO fundamentals, structured data, and emerging GEO practices) as competitive differentiators for consumer-facing