Senior AI Engineer (x/f/m)

Doctolib

JOIN OUR MISSION, JOIN DOCTOLIB!  Doctolib is growing, and we are hiring a Senior Fullstack Software Engineer in Nantes to join the Business Performance team. Your mission will be to help Doctolib reinforce its position as a leading healthcare technology platform by building high-quality products that improve the daily lives of healthcare professionals and patients. You will work in feature teams developing solutions that directly impact millions of people across Europe. Working in the tech team at Doctolib means building innovative products and features to improve the daily lives of care teams and patients. YOUR IMPACT Your responsibilities include but are not limited to: * Collaborate with product managers, designers, and engineers to build features that deliver value to healthcare professionals and patients * Design and implement technical solutions ensuring performance, security, and usability across our fullstack applications (React, Ruby on Rails, JVM ecosystem) * Strong design and architecture skills: you contribute to technical decisions, not just implementation * A track record of balancing delivery speed, reliability, and maintainability under real constraints * Comfortable with AI-assisted development workflows, and able to help your team raise their own proficiency * Share your expertise and collaborate across teams to evolve Doctolib's architecture and technical standards * In BP, the scope is broad, and the topics are diverse. Teams are small, and decision-making is close to the action. And if you want to understand how a tech scale-up generates (and protects) its growth, you’ll have a front-row seat. LIFE AT DOCTOLIB TECH * Our solutions are built on a single fully cloud-native platform that supports web and mobile app interfaces, multiple languages, and is adapted to country and healthcare specialty requirements. * Our stack is composed of Rails, TypeScript, Java, Python, Kotlin, Swift, and React Native. * We leverage AI ethically across our products to empower patients and health professionals. Discover our AI vision here. Want to learn more about our tech culture and environment? Visit the Doctolib Tech site. WHO YOU ARE 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 could be our next team mate if you: * You have fullstack software engineering experience with React and the JVM ecosystem (Java, Kotlin, Spring Boot) - Ruby experience is a bonus * You have a "user first" mindset and are committed to building secure, well-tested, and pragmatic code * You bring a strong testing culture and are passionate about code quality and system resiliency * You are proactive, curious, and eager to share knowledge through pair programming and collaboration WHAT WE OFFER * Free comprehensive health insurance (basic package) 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 * Enrollment in Doctolib's long-term employee value sharing plan called DoctoGrowth * ParentCare Program: Enjoy full salary coverage (100%) during your first month of birth leave, and 75% during the second, covered by Doctolib * For caregivers and workers with disabilities, a package including an adaptation of the remote policy, extra days off for medical reasons, and psychological support     THE INTERVIEW PROCESS  * A first interview with a member of the Talent Acquisition team * A Coding and System Design interviews * A final interview  * Reference check    JOB DETAILS * Permanent position / Fixed term contract * Full Time / Part Time * Workplace * Start date: As soon as possible * Compensation : fix 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! All information provided is processed by Doctolib for application management. For data processing details, click here: Germany l France l Italy l Netherlands. Please contact hr.dataprivacy(at)doctolib.com to exercise your rights.

SFEIR

👾 Tu as l’âme d’un vibe coder ? Tu développes avec Claude Code ouvert en permanence, tu prompts plus vite que ton ombre et tu penses que l’IA va complètement transformer le métier de Data Engineer ? Welcome chez SFEIR Nantes. 🧠 Ce qu’on recherche chez toi Tu n’as pas peur de : architecturer des pipelines data robustes avec Python, SQL, dbt et Airflow, jongler entre BigQuery, Snowflake, Databricks, Kafka ou les outils MLOps, penser Data Quality, gouvernance, observabilité, orchestration et optimisation des coûts, transformer des datasets complexes en plateformes réellement exploitables, expérimenter avec l’IA générative pour réinventer les workflows data. Tu veux comprendre ce qu’il se passe sous le capot. Pas juste lancer des jobs. 🛠️ Les projets sur lesquels tu pourrais t’éclater Construire des plateformes Data & AI cloud-native sur Google Cloud, Développer des pipelines temps réel pour piloter des activités critiques, Industrialiser des architectures MLOps et LLMOps, Concevoir des systèmes RAG connectés aux données métiers, Intégrer l’IA générative dans des workflows analytics et data engineering, Participer à des projets mêlant Data, IA, Cloud et software engineering,  🚀 Pourquoi rejoindre SFEIR Nantes ? Parce qu’ici, la tech passe avant le bullshit. Tu rejoins une communauté où les décisions techniques sont prises par des engineers et où le partage de connaissances fait partie du quotidien. Chez SFEIR Nantes : ton Engineering Manager code, les architectes restent proches du terrain, les talks sont animés par les équipes, et les communautés tech vivent toute l’année. Tu évolues dans une vraie “Skill-Based Organization” : ta progression dépend de ce que tu sais construire, transmettre et faire grandir. 🚀 Ce que tu trouveras chez nous Un vrai management technique, Une communauté active autour de la Data, de l’IA et du Cloud, Des meetups, labs, talks et formations internes toute l’année, Un accès à SFEIR Institute et aux certifications Google Cloud / AWS, Des trajectoires d’évolution variées : IC, Staff Engineer, Engineering Manager, Trainer, Speaker… Une forte culture du craft, de l’architecture et du partage. 🤖 Notre botte secrète : RAISE & SFEIR AI Chez SFEIR, maîtriser l’IA n’est plus une option. Tu auras accès à RAISE, notre plateforme GenAI interne multi-LLM, utilisée par nos équipes pour : accélérer les workflows data, construire des assistants IA connectés aux données métiers, expérimenter rapidement autour des LLMs, développer des usages RAG et agents IA, et industrialiser des solutions concrètes. ✨ Qui sommes-nous ? SFEIR est un pure player du digital, du Cloud, de la Data et de l’IA générative. 900 techs en France, Belgique et Luxembourg qui partagent la même ambition : coder, apprendre, transmettre et construire des produits qui comptent. 🌊 Et Nantes dans tout ça ? SFEIR Nantes, c’est : une communauté tech en pleine croissance, des projets Data & AI à fort impact, une présence forte dans l’écosystème nantais, des speakers présents sur les grands événements tech, des locaux à La Cantine Numérique au cœur de l’Île de Nantes, des talks, afterworks, meetups et SFEIR School toute l’année. Ici, on aime autant débattre d’architecture data que comparer les meilleurs prompts pour optimiser un pipeline IA 😄 🎯 En pratique Localisation : Nantes Télétravail : 2 à 3 jours par semaine Stack fréquente : Python, SQL, dbt, Airflow, BigQuery, Databricks, Kafka, GCP, Vertex AI, Docker, Kubernetes, APIs LLM, RAG 🎮 La suite des événements Premier échange avec l’équipe recrutement, Entretien RH personnalisé, PlayOffs techniques en pair programming avec des Sfeirien·ne·s, Rencontre avec l’équipe business, Échange final avec le management local. 🤩 Ready to build the future of Data & AI with us ? Tu veux construire des plateformes data modernes avec une team passionnée, dans une boîte où la technique est réellement au centre ? Viens discuter avec nous 🚀

Doctolib

Join a team of passionate and hardworking entrepreneurs to transform healthcare!  Working in the tech team at Doctolib involves building innovative products and features to improve the daily lives of care teams and patients. We work in feature teams in an agile environment, while collaborating with engineering, design, and business teams. Doctolib is looking for a Senior Site Reliability Engineer to keep Doctolib production database systems running smoothly. You will also be a key-player to support the exponential growth of Doctolib services. WHAT YOU WILL DO You will join a team of developers, DBA and SRE responsible for: * Improving and protecting the health of our datastores, * Empowering the whole tech teams to use our datastores in the most efficient way, * Collaborating everyday with our Database Architects, Principal Engineers and Site Reliability Engineers from other teams. As a Senior Site Reliability Engineer in our Doctolib Database Optimization team, you will play a critical role in ensuring the reliability, availability, and performance of our databases. You will: Design, build and maintain core infrastructure databases that allow Doctolib scaling to support hundreds of thousands of concurrent users. * Automate deployment, scaling, and maintenance of databases to enhance system reliability and operational efficiency, * Implement and improve monitoring, alerting, and incident response processes to identify and address potential issues before they impact both practitioners and patients, * Provide documentation and tooling to empower the feature teams in their use of their databases, while ensuring their reliability, * Mitigate production database issues during working hours when the issue cannot be fixed by the responsible feature team, * Research and evaluate new technologies, tools, and best practices to continuously improve the reliability and availability of our systems and processes.   WHO YOU ARE Are you convinced that you have exactly what it takes for the position? Then we encourage you to apply. Even if you don't meet every requirement, you might be exactly the right future Doctoliber for this or other positions! * Have a strong hands-on experience (6y+) on a production platform, if possible at scale, * Have proven experience with cloud platforms such as AWS, Azure or Google Cloud,  * Have proven experience with datastores such as PostgreSQL and/or Kafka and/or Couchbase, * Have solid understanding of containerization and orchestration technologies (Docker and Kubernetes), * Have proficiency in at least one programming language (Ruby, Python, Go, Java, etc.) and understanding of infrastructure as code principles, * Are fluent in English. Now, it would be fantastic if you: * Have an experience with monitoring and observability tools, * Like troubleshooting performance issues in complex environments. WHAT WE OFFER * Free Health Insurance for you * Up to 14 days of RTT * A flexible workplace policy offering both hybrid and office-based modes * Flexibility days allowing to work in EU countries and the UK 10 days per year * Wellbeing program with free mental health and coaching through moka.care * Special support package for caregivers and workers with disabilities * ParentCare Program: Enjoy full salary coverage (100%) during your first month of birth leave, and 75% during the second, covered by Doctolib * Lunch voucher with Swile card * Work Council subsidy for sport club membership or creative activities * Bicycle subsidy * Public transportation reimbursement * Relocation support for international mobility THE INTERVIEW PROCESS  * Recruiter Interview * SRE Technical interview * System Design Interview * Behavioral interview * Reference Check * Offer! JOB DETAILS * Contract: Permanent position * Workplace: Nantes * Start date: As soon as possible * Remuneration: Competitive salary package according to your profile 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! All information provided is processed by Doctolib for application management. For data processing details, click here. Please contact hr.dataprivacy(at)doctolib.com for inquiries or to exercise your rights.