Senior Data Engineer (F/H) - Nantes

SFEIR

🚀 Senior Software Engineer Java (F/H) – SFEIR Nantes Tu débats de Clean Architecture à la pause café ? Tu regardes les nouveautés Java à chaque release et tu considères qu’un bon développeur backend doit comprendre autant le code que l’écosystème qui l’entoure ? Tu es convaincu(e) que l’IA va transformer le métier de développeur, mais que l’expertise technique restera plus importante que jamais ? Bienvenue chez SFEIR Nantes. 🤔 C’est quoi SFEIR ? SFEIR, c’est avant tout une communauté de 900 techs en France, Belgique et Luxembourg, réunis autour d’une même passion : construire des solutions modernes, apprendre et transmettre. Nous accompagnons nos clients sur : 🔹 Le développement d’applications web & mobiles ; 🔹 Les architectures Cloud, Platform Engineering et Data ; 🔹 L’IA générative et les nouveaux usages augmentés ; 🔹 Les meilleures pratiques Software Engineering et Cloud Native. 🚀 Pourquoi les ingénieurs rejoignent aussi SFEIR aujourd’hui SFEIR est partenaire officiel d'Anthropic et partenaire Premium Google Cloud. Pour nos ingénieurs, cela signifie être au plus près des évolutions de l’IA générative, du Cloud et des nouveaux usages qui transforment déjà le métier de développeur. Nous sommes convaincus que les développeurs les plus recherchés demain seront ceux capables de combiner excellence technique, maîtrise du Software Engineering et utilisation intelligente des outils d’IA. Chez SFEIR, tu ne subis pas cette transformation. Tu apprends à la piloter. 🧠 Ce qu’on recherche chez toi Tu n’as pas peur de : 🔹 Développer des architectures backend modernes avec Java 21+ et Spring Boot ; 🔹 Concevoir des applications robustes, maintenables et évolutives ; 🔹 Penser performance, observabilité, résilience et scalabilité ; 🔹 Travailler dans des environnements Cloud Native (GCP, AWS, Kubernetes, Docker) ; 🔹 Challenger les choix techniques et faire évoluer les pratiques ; 🔹 Réaliser des revues de code exigeantes et bienveillantes ; 🔹 Partager ton expertise avec d’autres passionné(e)s. Tu aimes comprendre comment les choses fonctionnent. Pas simplement faire tourner des microservices. 🛠️ Les projets sur lesquels tu pourrais t’éclater 🔹 Concevoir des architectures distribuées robustes ; 🔹 Développer des APIs à fort trafic et des systèmes critiques ; 🔹 Participer à des projets mêlant Java, Cloud, Data et IA générative ; 🔹 Construire des plateformes Cloud Native sur Google Cloud ; 🔹 Travailler sur des problématiques de performance, CI/CD, observabilité et Event Driven Architecture ; 🔹 Accompagner nos clients dans la modernisation de leurs applications ; 🔹 Expérimenter les nouveaux usages de l’IA appliqués au développement logiciel. Bref, du concret. Pas des projets figés depuis Java 8 😄 🚀 Pourquoi rejoindre SFEIR Nantes ? Parce qu’ici, la technique est réellement au centre des décisions. Tu rejoins une communauté où : 🔹 Les Engineering Managers continuent à pratiquer la technique ; 🔹 Les architectes restent proches du terrain ; 🔹 Les talks et retours d’expérience sont animés par les équipes ; 🔹 Le partage de connaissances fait partie du quotidien ; 🔹 Les compétences comptent davantage que les titres. Chez SFEIR, nous fonctionnons comme une Skill-Based Organization. Ton évolution dépend avant tout de ce que tu construis, de ce que tu transmets et de l’impact que tu apportes. 🤖 Et l’IA dans tout ça ? Chez SFEIR, l’IA fait déjà partie du quotidien des ingénieurs. Tu auras accès à RAISE, notre plateforme GenAI interne multi-LLM, utilisée par nos équipes pour : 🔹 Accélérer le développement logiciel ; 🔹 Construire des assistants métiers ; 🔹 Développer des systèmes RAG ; 🔹 Expérimenter autour des agents IA ; 🔹 Automatiser certaines tâches d’ingénierie ; 🔹 Explorer les nouveaux usages du développement augmenté. L’objectif n’est pas de remplacer les développeurs. L’objectif est de permettre aux meilleurs ingénieurs d’aller encore plus loin. 👌 Ce que tu trouveras chez nous 🔹 Un management technique de proximité ; 🔹 Une communauté Java particulièrement active ; 🔹 Des meetups, labs, talks et formations toute l’année ; 🔹 Un accès aux certifications Google Cloud et AWS ; 🔹 Des trajectoires d’évolution variées : Staff Engineer, Engineering Manager, Speaker, Trainer ou Évaluateur ; 🔹 Une forte culture du Craft, du Clean Code et de l’Architecture ; 🔹 Une communauté IA qui expérimente déjà les usages de demain. 🌊 Et Nantes dans tout ça ? SFEIR Nantes, c’est : 🔹 Plus de 60 ingénieurs passionnés ; 🔹 Une communauté tech en croissance continue ; 🔹 Plus de 20 clients locaux et nationaux ; 🔹 Une forte présence dans l’écosystème nantais ; 🔹 Des speakers présents sur les principaux événements tech ; 🔹 Des locaux à la Halle 6, au cœur de l’Île de Nantes ; 🔹 Des talks, meetups, afterworks et SFEIR Schools tout au long de l’année. Ici, on aime autant débattre de Java 23, Kafka ou DDD que comparer les meilleurs prompts pour générer des tests unitaires 😄 🎯 En pratique 📍 Localisation : Nantes 🏠 Télétravail : 2 à 3 jours par semaine selon les contextes clients ⚙️ Stack fréquente : Java 21+, Spring Boot 3, Kafka, PostgreSQL, Docker, Kubernetes, GCP, GitLab CI/CD, Terraform, APIs REST, Event Driven Architecture 🎮 La suite des événements 🔹 Premier échange avec Justine Thiriet ; 🔹 Entretien RH personnalisé ; 🔹 PlayOffs techniques en pair programming avec des Sfeirien(ne)s ; 🔹 Échanges autour du Software Engineering, de Java et de l’architecture ; 🔹 Rencontre avec l’équipe business ; 🔹 Échange final avec le management local. 🤩 Ready to build with us ? Tu veux construire des applications modernes avec une communauté passionnée où la technique est réellement au centre ? 🚀 Le métier de développeur se transforme profondément. Les ingénieurs les plus recherchés demain seront ceux capables de combiner expertise logicielle, compréhension des architectures modernes et maîtrise des nouveaux outils d’IA. Rejoindre SFEIR, c’est choisir un environnement qui te permet de développer ces compétences dès aujourd’hui. Le futur du développement se construit maintenant. Viens le construire avec nous.

Doctolib

YOUR IMPACT We are looking for a Senior AI Engineer to join the Customer Care Contact team in the Business Performance domain. Your mission will be to build AI-powered tools that revolutionize how healthcare professionals deliver care. You will work on Doctolib Assistant, our AI personal assistant designed to assist doctors and medical staff in their daily work—from answering complex medical questions to automating administrative tasks with accuracy, reliability, and safety. Working in the tech team at Doctolib means building innovative products and features to improve the daily lives of care teams and patients. WHAT YOU'LL BUILD Your responsibilities include but are not limited to:   * Design, ship, and operate production-grade agentic systems powering Doctolib Assistant, our AI personal assistant that addresses key challenges for healthcare professionals * Build and improve AI agents and our orchestration systems * Partner with data scientists to design and implement evaluation pipelines, security/safety guardrails, and metrics—while taking ownership of operational AI projects as data science teams focus on exploratory research * Develop and maintain core agentic capabilities including memory, reasoning orchestration, tool adapters, and multi-agent coordination, ensuring strong observability, fallback mechanisms, and fail-safe behaviors * Own performance, observability and security: monitoring dashboards, SLO/SLI, and security posture * Ensure privacy and security by design, with a particular focus on medical data sensitivity * Contribute to fullstack development when needed to deliver end-to-end features for healthcare professionals 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 4+ years of experience as a software engineer, with hands-on experience in AI/ML systems * Have 2+ years of experience working with Python * Have gone through the full lifecycle of an AI product, from initial evaluation and launch to iterations based on results in production * Understand and promote best practices related to the software development life cycle such as automated testing, good use of CI/CD, and DevOps practices * Are comfortable with fullstack development and not afraid to dive into React/TypeScript/Kotlin to ship end-to-end features * Are product-oriented and comfortable guiding your teammates to suggest tradeoffs to balance business needs with technical constraints * Are comfortable speaking and writing in English in your day-to-day work with the team It would be fantastic if you: * Have experience building multi-agent systems or agent development frameworks * Have worked on AI products for enterprise/professional users * Have experience in the medical domain or healthcare tech 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. WHAT WE OFFER * Free comprehensive health insurance for you and your children * ParentCare Program: Enjoy full salary coverage (100%) during your first month of birth leave, and 75% during the second, covered by Doctolib * Free mental health and coaching services through our partner Moka.care * For caregivers and workers with disabilities, a package including an adaptation of the remote policy, extra days off for medical reasons, and psychological support * Work from abroad for up to 10 days per year, thanks to our flexibility days policy * Up to 14 days of RTT * A subsidy from the work council to refund part of the membership to a sport club or a creative class * Lunch vouchers (Swile card) worth €8.50 per working day, with €4.50 covered by Doctolib * 50% reimbursement of your public transport subscription * Enrollment in Doctolib's long-term employee value sharing plan called DoctoGrowth * Relocation support in case of international mobility * Access to the best AI tools for coding, development and dedicated training OUR INTERVIEW PROCESS * Recruiter Interview * Coding Interview * System Design Interview (with focus on AI systems architecture) * Behavioral Interview * At least one reference check We want your experience to be clear, respectful, and transparent. Learn more about our hiring process on our candidate experience page. JOB DETAILS * Permanent position * Full-time * Location: Nantes, France * Start date: as soon as possible WE WELCOME EVERYONE 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, or 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! YOUR DATA PRIVACY All information provided is processed by Doctolib for application management. For data processing details, click here: France. Please contact hr.dataprivacy(at)doctolib.com for inquiries or to exercise your rights.

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.