Senior Full Stack Engineer - Paris

Raidium

About the company Raidium is building a foundation Model for precision medicine in radiology. Our first release, Curia is already state of the art. Our model is embedded in a new type of solution for the radiologist that enables a revolutionary AI-native workflow. Thanks to a 16M€ seed round raised in November 2024, Raidium is expanding its team.   The team The founders of Raidium are experts in radiology and machine learning from Owkin, bringing together extensive experience from both fields. Paul Herent, CEO, is a radiologist and former interne des hôpitaux de Paris, with a Cogmaster (ENS) and PSL background, and has published pioneering research on deep learning in radiology.  Pierre Manceron, CTO, is a Centrale Paris engineer specialized in Applied Mathematics and Machine Learning, who previously led machine learning projects at Owkin.  Sebastian Schwarz, COO, holds a double degree in X-HEC Data Science & Business, who previously worked as a Strategy & Operations Director at Owkin, where he developed Owkin’s strategic vision and operational agency. Our team brings together strong academic foundations (Polytechnique, Ponts, MVA) and deep medical, AI, and business experience from leading medical and tech companies such as Owkin, Cardiologs, Datadog, and Meta, all united by a mission to revolutionize radiology through cutting-edge technology. The role  As a Full-stack Software engineer at Raidium, play a pivotal role in developing the Raidium product and integrating Machine Learning models. Design, implement, and maintain both front-end and back-end components of Raidium product, involving serving ML models and manipulating radiological images Collaborate with ML Engineers to integrate advanced ML/Deep Learning models into the platform, ensuring the system is highly accurate and efficient. Build the infrastructure and pipelines to support rapid growth in users and data volume without compromising performance. Enforce the best practices to ensure code quality and system soundness: automatic testing, linting, typing… You will work with the R&D team, composed of Software engineers and ML Engineers and you will be managed by Alexandre Blondin, our Lead Software Engineer.

TheFork

Join our Movement and Champion Restaurant Culture! 💚 At TheFork we believe that the best things in life happen around the table. As the leading restaurant booking platform in Europe, we connect the broadest community of loyal diners with the world’s favorite restaurants. Powered by innovation and a deep passion for the restaurant industry, we create unique dining experiences across 11 countries. We’re part of the Tripadvisor Group and proud to be building a diverse, people-first culture where “respect”, “ownership”, “growth” and “better together” values thrive. If you’re passionate about food, technology, and making a real impact, your seat at the table is ready.  👉 Discover life at TheFork Hey 👋 I’m Pierre, and I’m building the Growth & GTM engineering team at TheFork. How do you feel about engineering roles where the hard part is not only writing the code, but figuring out what is worth building in the first place? At TheFork, we help restaurants grow, manage demand, and connect with millions of diners across Europe. That sounds simple. In reality, there is a lot of complexity behind it. Restaurants need to onboard faster. They need to understand the value of our products. They need better data to make better decisions. They need software that reduces friction instead of adding more. Internally, our Sales, Customer Care, and Moderation teams are looking for modern tools and AI that solve real problems, making sure that actual leverage always comes before the trend. That’s where this team comes in. 💚 The Growth & GTM engineering team exists to unlock leverage across B2B growth and operational efficiency. Sometimes that leverage is a product feature. Sometimes it is an internal tool. Sometimes it is a data workflow. Sometimes it is an AI-powered automation, an MCP workflow, or a CLI-based prototype. And sometimes, the best engineering decision is to not build anything until we better understand the problem. This is not a ticket-taking role. I’m looking for a senior engineer who wants to get close to the business problem, challenge proposed solutions when needed, choose the right level of investment, ship reliable software, and learn from production. Someone who wants to be close to the problem, not just close to the code. WHAT YOU WILL DO You’ll work on problems that sit at the intersection of product, engineering, data, operations, and AI. A few examples: * Helping restaurants activate faster and get more value from TheFork. * Improving monetization, upsell, product discovery, or referral loops. * Exposing useful data and recommendations to restaurants or internal teams. * Automating repetitive workflows for Customer Care, Sales, Moderation, or Operations. * Building internal tools that help teams move faster without adding more process. * Prototyping AI agents, MCP workflows, CLI-based automations, or internal copilots. * Reducing operational costs by turning fragmented data and manual work into reliable systems. Some of these projects will be clean product features. Some will be scrappy prototypes. Some will require going deep into existing systems. Some will start with a messy business problem and no obvious solution. That’s the job. HOW WE THINK ABOUT ENGINEERING We care about impact, but not in a vague “move metrics” way. We care about software that changes something real: a restaurant activating faster, a sales team saving time, a support workflow becoming simpler, a moderation process costing less, or an internal team making better decisions because the right data is finally available. We like engineers who ask questions before building. We like prototypes when they help us learn faster. We like clean systems when the problem deserves long-term investment. We like boring, reliable software when reliability matters more than cleverness. We also like AI and automation, but not as decoration. AI is useful when it removes repetitive work, speeds up decision-making, improves internal workflows, or helps engineers increase their own leverage. If you are already using tools like Copilot, Claude, CLI agents, MCP workflows, or custom automations to work differently, you’ll probably enjoy this environment. The goal is not to put AI everywhere. The goal is to use modern tools intelligently to solve real problems. THE TECHNICAL STACK USED BY THE TEAM In the Growth & GTM team, we mainly work with: * Node.js, TypeScript, React, GraphQL  => minimum requirement. * PostgreSQL, Elasticsearch. * DBT, AWS Glue, Hightouch. * Datadog, Grafana. * GitHub Copilot, Claude, AI CLI tools, MCP workflows. Across TheFork, you may also interact with Kubernetes, AWS, RabbitMQ, and some legacy PHP/Symfony services. You don’t need to have used every tool already. Strong technical foundations, curiosity, and fast learning matter more than exact stack matching. YOU MUST MEET THESE CRITICAL QUALIFICATIONS I’m not looking for someone who has already worked on every topic listed above. I’m looking for someone with strong engineering foundations, good product judgment, curiosity, and enough pragmatism to know when to build properly and when to test something quickly. You might be a good fit if: * You are a senior backend or full-stack engineer. * You have experience building reliable web applications, backend services, APIs, or distributed systems. * You care about product and business impact, not only technical output. * You are comfortable with ambiguity. * You can take a loosely defined problem and turn it into shipped software. * You enjoy working with Product, Data, Sales, Customer Success, Customer Care, and Operations. * You are curious about AI, automation, agents, CLI tools, and modern engineering workflows. * You care about reliability, maintainability, security, observability, and user trust. * You communicate clearly in English. Put another way: I’m looking for someone who gets energy from turning messy growth or operational problems into simple, useful, measurable software. YOU CAN IMPRESS WITH THESE ADDITIONS You may not enjoy this role if: * You prefer fully specified tickets. * You want to focus only on implementation. * You are not interested in AI, automation, or changing how work gets done. * You think internal tools are less valuable than customer-facing features. No judgment, it’s just a different kind of engineering role. Nice to have: * You already use tools like Copilot, Claude, CLI agents, MCP workflows, or custom automations to work differently. * You have worked on B2B SaaS, growth, monetization, onboarding, sales-assist, or product-led growth topics. * You have built internal tools, automations, or operational workflows that saved time or reduced costs. * You are comfortable with data pipelines, reverse ETL, analytics engineering, or customer data platforms. * You have experience with PostgreSQL, Elasticsearch, DBT, AWS Glue, Hightouch, Datadog, or Grafana. WHY THIS IS INTERESTING Restaurants are one of the most operationally complex industries in Europe. A lot of value is still trapped in manual workflows, fragmented data, and software that does not yet do enough of the work. That creates a lot of room for engineering leverage. A better onboarding flow can help thousands of restaurants activate faster. A smarter monetization flow can move revenue. A good internal automation can save hundreds of hours. A useful data product can change how teams make decisions. A pragmatic AI workflow can remove repetitive work and let people focus on higher-value problems. You’ll join a Paris-based team working with colleagues across Europe. WHAT WE OFFER YOU 😄 An awesome team 🏠 A permanent contract ⚖️ Flexible working environment: 2 days home office per week + up to 4 total weeks additional flexibility during the summer period and in December to work fully remotely 💸 Competitive fixed salary and bonus 🍕 Lunch vouchers available for each working day, because yes, we like to try our best restaurants 🌎 International teams and a multicultural environment spanning 10 offices across Europe 🤝 Highly inclusive working environment 🤸‍♀️ Lifestyle benefits that can be used to reimburse expenses related to physical and leisure activities, family support, travel etc. 🎓 Continuous learning and development programs 😌 Free access to the Calm app to help you build resilience wherever you are in your mental health journey 🐣 Dedicated parental leave and caregiver leave policies, 12 weeks fully paid 🏥 Health insurance covered by the company 👶 Financial support for birth, adoption, civil partnerships, or marriage 🚝 Transport allowance 👩‍🦽 Life & Disability Insurance at no cost to the employee 🍴 Amazing offices with dining, coffee points and leisure area 🎤 Team building events All hiring happens through our careers site and official email. We do not text or ask for payment during the hiring process. Please report any suspicious messages immediately. We believe that we are better together, and we welcome you for who you are. We endeavor to ensure that everyone  regardless of ability, age, socio-economic & cultural background, ethnicity, faith, gender, gender expression, gender identity, ideology, national origin, race, sexual orientation, marital status, or any characteristic protected under applicable law  has the opportunity to reach their full potential. At TheFork, we want you to bring us your unique perspectives and experiences, so we can collectively continue disrupting the restaurant industry and go from good to great. TheFork is committed to a fair recruitment process. If you have special needs and require reasonable support during your application, interview, or participation in the selection process due to health conditions or disability, please direct your inquiries to AccessibleRecruitment@TheFork.com. Our HR team will review the request and respond accordingly. #LI-FF1

Theodo

L’histoire du groupe Theodo et son succès Theodo accompagne depuis 2009 les entreprises innovantes dans la conception, le développement et le déploiement de produits digitaux ingénieux - tels que la plateforme TF1+, l'application LCL Pro ou l'application France Identité Numérique - en tirant parti du meilleur de la technologie et de l’approche Lean.   Theodo connait une croissance exceptionnelle depuis 15 ans : nos équipes rassemblent plus de 700 Theodoers, principalement des Software Engineers, passionnés de technologie et d’amélioration continue. En 2025, le groupe Theodo génère 100M€ de CA. Ton équipe : Tu rejoindras une communauté tech de plus de 120 Theodoers : software engineers, tech leads, engineering managers et architectes, avec lesquels tu pourras échanger, apprendre et progresser au quotidien.   Chez Theodo, les techs travaillent en équipes projet, constituées en fonction des besoins de chaque client. Tu feras partie d’une équipe de Theodoers à taille humaine (4 à 5 personnes), réunissant Software Engineers, Tech Lead et Product Manager. Ensemble, vous collaborerez étroitement avec le client, avec des échanges réguliers pour partager vos avancées, approfondir la compréhension de son problème et faire évoluer le produit au plus près des besoins de ses utilisateurs.   Tes missions :   En devenant Full-Stack Senior Software Engineer à Theodo, ta mission consiste à :   Coder rapidement sans bug, en t’appuyant sur des assistants coding (Copilot, Cursor, Windsurf). Concevoir les fonctionnalités, aussi bien en étant force de proposition sur le produit mais aussi en identifiant les meilleures stratégies techniques, tout en adoptant nos pratiques de delivery tournées autour du Lean. Tu es membre d'une équipe de 1 à 3 ingénieur(e)s avec un(e) tech lead, un(e) product manager.L’objectif sera que tu puisses rapidement prendre un rôle de tech lead, une fois notre méthode bien assimilée pour transmettre tes connaissances à des développeurs. Pour y arriver : Une formation tech sur 6 à 8 semaines sur le refactoring, le debugging, le testing... Tu es managé par un Tech Lead, qui est là pour la progression technique de son équipe à travers des sessions de code review, de pair programming ou de Kaizen. Tu as un coach qui s’assure de ton intégration dans l’équipe et de ta progression à long terme. Tu as deux formations hebdomadaires : l'une sur la méthodologie et l'autre sur une problématique spécifique. Tu participes au cursus de formation Tech Lead pour te former à ce poste. Les problématiques et les technos sont très différentes d’un projet à l’autre, voici quelques exemples : iDealwine® : leader mondial des enchères de vins en ligne a engagé la migration de son site e-commerce monolithique vers une architecture composable pour gagner en évolutivité, en sécurité et en maîtrise technologique. Après 2 mois de cadrage, les équipes Theodo ont piloté une approche design-to-cost permettant de modulariser la plateforme et de migrer 20 ans d’historique en 14 mois, dans le respect du budget et du planning. Sevetys : refonte complète d’une web app métier avec deux volets stratégiques : un outil de prise de rendez-vous pour les propriétaires d’animaux et un back-office dédié aux vétérinaires. Deux équipes produit ont piloté la reconstruction des plateformes de bout en bout, rejointes en fin de projet par une équipe data pour structurer et valoriser les données. Principal défi : une mise en production coordonnée à grande échelle, impliquant de nombreuses cliniques vétérinaires, sans interruption d’activité.   Parmi les technos les plus représentées sur nos projets, tu pourras être amené à travailler avec : Java (Spring Boot), Angular, Node (Nest), React (Next), Python…    Tes perspectives d'évolution : Notre ambition est de former les leaders de la tech de demain. Grâce au coaching et formations que l’on propose, tu pourras : Devenir un expert en développement en étant formé aux meilleurs standards de qualité Développer des compétences transverses : coaching, recrutement, commercial, management et marketing technique Participer à des groupes d’expertises avec d’autres passionnés (Cybersécurité, Serverless, Performance, GreenIT…) Construire ton parcours sur-mesure pour atteindre tes objectifs : tech lead, senior architecte, évangéliste (spécialiste d’un sujet), CTO ou fondateur d’une entité etc   Une méthodologie basée sur l’apprentissage continu : Chez Theodo, nous avons construit notre approche tech autour d’une conviction forte : on développe d’abord les personnes, avant de développer les produits.   Notre Lean Tech® System met l’accent sur l’apprentissage continu : tu évolueras dans un environnement qui investit sur le long terme, où l’objectif est de te permettre de progresser chaque jour, tout en construisant des produits utiles et performants pour nos clients.   Ton profil : Tu as 2 à 5 ans d’expérience en tant que Software Engineer et maîtrises un ou plusieurs de nos frameworks de prédilection : Spring Boot, Nest.js, Node, Angular ou React.js Tu ne cherches pas “juste à coder” : tu fais preuve de proactivité, de débrouillardise d’impact dans ce que tu entreprends. Tu sais concevoir des fonctionnalités complexes et tu as en particulier la capacité de bien modéliser une réalité métier. Tu as envie de rejoindre une boîte avec un haut niveau d’exigence sur la qualité de code : notre étoile du nord, c’est le 0 bug. Tu es curieux/curieuse d'en apprendre plus sur le Lean Tech et tu as l’ambition de prendre rapidement des responsabilités avec un rôle de tech lead. Le processus de recrutement : Un premier call avec un membre de l'équipe de recrutement. Un entretien de fit culturel avec un membre de l’équipe de recrutement. Un test de refactoring libre (1h30 de préparation) suivi d'un entretien dans nos locaux de debriefing avec un(e) tech expérimenté(e) (tech lead ou engineering manager). Un entretien technique de modélisation avec un(e) tech expérimenté(e) (tech lead ou engineering manager). Une rencontre avec Xavier Marchal, notre VP Engineer