Senior Software Engineer - Book Your Practitioner (x/f/m)

Doctolib is looking for a Senior Software Engineer to join the team behind the 'Book Your Practitioner' platform in Paris. This group focuses on building tools that help patients and healthcare professionals connect more easily. Role overview This position centers on improving the experience of booking healthcare appointments. The work directly affects how patients find and schedule visits, as well as how practitioners manage those appointments. What you will do Enhance the user experience for scheduling healthcare appointments Design and build new software features to support both patients and practitioners Collaborate with fellow engineers to deliver solutions that are both reliable and scalable Contribute to projects that shape access to healthcare Requirements Solid experience as a software engineer, especially with complex systems Interest in working on products that impact people's lives Enjoyment of problem-solving within a collaborative team This role is based in Paris, France.

Your Impact At Doctolib, we are rapidly expanding our team and currently seeking talented Fullstack Software Engineers to join us in Paris. We welcome engineers at various stages of their careers, whether you are just starting out or have years of experience under your belt. There’s a place for you in our innovative Engineering teams! Your mission is to help Doctolib solidify its standing as a premier healthcare technology platform by creating high-quality products that enhance the daily routines of healthcare professionals and patients. You will engage in feature teams that develop solutions with a direct impact on millions across Europe. Joining the tech team at Doctolib means you will be at the forefront of building cutting-edge products and functionalities that improve the lives of care teams and patients alike. What You’ll Build Your responsibilities will encompass, but are not limited to: Collaborating with product managers, designers, and fellow engineers to create features that provide real value to healthcare professionals and patients. Designing and implementing technical solutions that ensure optimal performance, security, and usability across our fullstack applications (React, TypeScript, JVM ecosystem). Contributing to code quality through thorough reviews, testing, and the continuous improvement of our development practices. Sharing your expertise and collaborating across teams to advance Doctolib’s architecture and technical standards. Life at Doctolib Tech Our solutions are built on a single fully cloud-native platform that supports web and mobile application interfaces, multiple languages, and is tailored to meet the requirements of various countries and healthcare specialties. Our technology stack includes Rails, TypeScript, Java, Python, Kotlin, Swift, and React Native. We ethically leverage AI across our products to empower both patients and health professionals. Learn more about our AI vision here. Interested in understanding more about our tech culture and environment? Visit the Doctolib Tech site. What You’ll Bring Before proceeding, if you feel that this job description resonates with your skill set even if you don’t meet every criterion, we encourage you to apply! You possess 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 dedicated to enhancing the user experience.

Your Impact Join Doctolib, a rapidly expanding healthcare technology platform, as we seek talented Frontend Software Engineers in Paris. We welcome developers at all stages of their careers, from newcomers to seasoned professionals, to join our innovative Engineering teams! As a Frontend Software Engineer, your role will be crucial in enhancing Doctolib's mission to provide high-quality products that benefit both patients and healthcare professionals. Your contributions will help solidify our position as a leader in the healthcare technology sector. Your key responsibilities will include: Collaborating with product managers, designers, and fellow engineers to develop features that provide real value to our users. Designing, developing, and maintaining React and TypeScript components while adhering to performance, accessibility, and scalability standards. Enhancing code quality through thorough testing, meticulous documentation, and constructive code reviews. Sharing your expertise and working collaboratively across teams to continuously advance Doctolib's frontend architecture. Life at Doctolib Tech Our solutions are built on a fully cloud-native platform that caters to both web and mobile applications, supports multiple languages, and is tailored to various healthcare specialties. Our technology stack includes Rails, TypeScript, Java, Python, Kotlin, Swift, and React Native. We ethically leverage AI across our products to empower patients and health professionals. Learn more about our AI vision here. Curious about our tech culture and working environment? Visit the Doctolib Tech site.

Join Our Mission to Transform Healthcare At Doctolib, we are on a mission to revolutionize the healthcare experience through cutting-edge technology. Our passionate tech team is dedicated to creating innovative products and features that enhance the daily lives of healthcare practitioners and their patients. Working in an agile environment, we collaborate closely with engineering, design, and business teams to achieve our goals. Your Role We are seeking a Senior Software Engineer to become a vital member of our Design System & Accessibility Team. Your contribution will be paramount in making Doctolib the leading digital and secure medical companion for patients. In our Platform domain, we focus on building and maintaining essential building blocks of our system with a "Platform as a Product" mindset. Our objective is to simplify the use of these complex components, allowing product teams to concentrate on their core mission: delivering faster solutions for healthcare professionals and patients. Why Your Work Matters: With a significant 80% of our traffic coming from mobile users, your role will be instrumental in bridging the gap between our Web and Mobile Design Systems, ensuring a seamless user experience across platforms. As part of the Frontend Platform team, you will empower all Doctolib Tech and Product teams to develop accessible, top-tier frontend applications. We achieve this by providing a robust web and mobile design system, creating supportive tooling, and offering guidance as Accessibility experts. Key Responsibilities: Design, build, and maintain a scalable web and mobile Design System using React and React Native to ensure consistent, accessible, and high-performance user experiences. Guide the convergence of Web and Mobile Design Systems, ensuring visual and functional consistency across React and React Native components. Develop and maintain React Native components for a seamless cross-platform experience. Mentor team members on React Native best practices, promoting a mobile-first culture within the Design System team. Collaborate with Product Designers to transform Figma designs into robust, reusable UI components, maintaining visual and functional parity between design and implementation. Advocate for accessibility (A11y), embedding inclusive design principles in our Design System and developing accessible components.

Join Our TeamDoctolib is seeking a Senior Data Engineer - Analytics to become a vital part of our Analytics Engineering team.In this role, you will be instrumental in creating data products that yield actionable insights and enhance decision-making across Doctolib, contributing to the evolution of healthcare access. You will collaborate with a dynamic team to develop data pipelines and solutions that bolster our organization's capacity for data-driven decision-making and support our AI initiatives.At Doctolib, our tech team is dedicated to crafting innovative products and features that significantly improve the day-to-day experiences of both care teams and patients. We operate in feature teams within an agile framework, fostering close collaboration with product, design, and business teams.Your Key Responsibilities:Develop and maintain data pipelines using Python (Dagster) to align with Doctolib's AI strategy.Build and sustain data marts in BigQuery using SQL/Jinja, DBT.Create insightful dashboards for high-level reporting utilizing Tableau.Engage with stakeholders to identify their data requirements and outline specifications.Ensure data integrity, security (compliance with GDPR), and accessibility through continuous monitoring and optimization.Our Technical Environment:Our solutions are built on a fully cloud-native platform that supports web and mobile interfaces, multiple languages, and is tailored to various country and healthcare specialty needs. We modularize our platform to operate in a distributed architecture leveraging reusable components.Our technology stack includes Rails, TypeScript, Java, Python, Kotlin, Swift, and React Native.We ethically leverage AI across our products to empower patients and health professionals. Learn more about our AI vision here and our first AI hackathon here!Our data stack incorporates Kafka/Debezium for data ingestion, Dagster/DBT for orchestration, GCS/BigQuery for data warehousing, and Metabase/Tableau for business intelligence and reporting.

Join our dynamic Analytics Engineering team as a Senior Data Engineer - GCP/BigQuery at Doctolib, where you will play a crucial role in enhancing healthcare accessibility through data-driven insights.Your primary objective will be to develop innovative data products that facilitate informed decision-making across the organization. You will collaborate with a talented team to create robust data pipelines and solutions that support our AI strategy.At Doctolib, we pride ourselves on fostering a collaborative and agile environment, working closely with product, design, and business teams to build features that improve the everyday lives of healthcare professionals and patients.Your responsibilities will include:Designing and maintaining data pipelines using Python to align with Doctolib’s AI initiatives.Developing and managing data marts in BigQuery utilizing SQL/Jinja and DBT.Creating high-level reporting dashboards with Tableau.Engaging with stakeholders to grasp their data requirements and establish clear specifications.Ensuring data quality, security (GDPR compliance), and availability through diligent monitoring and optimization.About Our Tech Environment:Our infrastructure is fully cloud-native, facilitating web and mobile interfaces across various languages, tailored to meet specific healthcare and country requirements. We are modularizing our platform and operating it in a distributed architecture using reusable components.Our tech stack includes Rails, TypeScript, Java, Python, Kotlin, Swift, and React Native.We prioritize ethical AI integration across our products to empower both patients and healthcare professionals. Explore our AI vision here and learn about our inaugural AI hackathon here!Our data stack comprises Kafka/Debezium for data ingestion, Dagster/DBT for orchestration, GCS/BigQuery for data warehousing, and Metabase/Tableau for BI and reporting.

At Swile, we are committed to enhancing professional experiences through innovative product solutions that alleviate daily challenges and elevate employee satisfaction. Our cutting-edge offerings in Fintech, Travel, HR, and Employee Benefits serve over 5.5 million users across 85,000 companies in France and Brazil, making a significant impact on the workplace.As a Senior Software Engineer, you will play a pivotal role in problem-solving, blending creativity with technical expertise. Your focus will be on delivering high-quality solutions swiftly and effectively, addressing both business and engineering challenges with innovative strategies rather than being restricted to specific technologies.

About H H focuses on advancing superintelligence through agentic AI. The company’s mission centers on automating complex, multi-step tasks that people usually handle, aiming for AI agents to help realize the full range of human potential. H seeks talented AI professionals who care deeply about responsible and safe development, as well as technical progress in agentic systems. The culture values openness, ongoing learning, and teamwork. Every team member’s input matters here. Product Engineering at H The Product Engineering team develops H’s Enterprise Platform, which provides customers with tools and services for essential operational needs. This platform supports large-scale computer-use agents, manages complex workflows, and offers a suite for observability, troubleshooting, and evaluation. Product Engineering connects AI research with practical applications and works closely with teams across the company.

Alice & Bob is pioneering the development of the first universal, fault-tolerant quantum computer aimed at tackling some of the most challenging problems in the world. Our innovative quantum computer is based on a revolutionary type of superconducting qubit known as the Schrödinger cat qubit. Unlike traditional superconducting platforms, cat qubits possess the remarkable capability to autonomously implement quantum error correction!We are leading the quantum revolution, standing shoulder to shoulder with industry giants like Google and IBM, and we are rapidly expanding following our successful €100 million funding round in 2025 dedicated to advancing our unique technology.With over 100 talented individuals, including physicists, PhD students, engineers, and seasoned business professionals, we are united in our quest to achieve our ambitious vision. Are you ready to join us as a quantum pioneer and help reshape the future?About the Role:The Calibration Team is tasked with automating the calibrations of our Quantum Processing Unit (QPU) to maximize its performance and ensure its operational reliability. As a Senior Software Engineer within this team, you will be instrumental in architecting the automatic calibration software. You will collaborate closely with quantum scientists to develop, maintain, and enhance the calibration processes. Additionally, you will work alongside other software engineers across the organization to facilitate seamless integration of your team's software with other in-house software components.

Join the Ubisoft AI Initiatives team and help architect the future of information lifecycle management at Ubisoft. From advanced hybrid search pipelines to sophisticated agentic reasoning capabilities, we create tools that transform raw data into swift, informed decision-making. If you are eager to push the boundaries of collaboration between humans and AI to tackle complex challenges, this position is perfect for you.We are seeking an experienced Senior Software Engineer to become a vital member of our team focused on developing scalable back-end systems that power these cutting-edge AI applications.ResponsibilitiesAs a Senior Software Engineer – AI Applications, you will play a crucial role in designing and building essential services that enable our solutions. You will work at the intersection of AI, enterprise cloud applications, large-scale data processing, and cloud infrastructure, with numerous opportunities for growth and impact. This role requires a solid understanding of modern architectures, AI/ML integration, and a genuine passion for solving complex problems.Architect and develop back-end systems: Design and implement high-performing, scalable back-end services to support AI applications.Optimize performance: Ensure low-latency serving and high throughput for AI models, agents, and APIs while optimizing speed and reliability.Collaborate with teams: Partner with data scientists and ML engineers to integrate advanced AI models and agents into production, ensuring smooth deployment and monitoring.Cloud infrastructure: Build and maintain cloud-native solutions using platforms like AWS or Azure, focusing on scalability, security, and cost management.Technical leadership: Mentor junior engineers, conduct code reviews, and contribute to the team’s overall technical strategy.Technology watch: Stay updated on the latest trends in AI, cloud computing, and engineering, and propose innovative ideas.Joining our team as a Senior Software Engineer – AI Applications offers a unique opportunity to work on cutting-edge projects that shape the future of AI technology. You will have the chance to:Engage in continuous learning to stay at the forefront of AI advancements.Take on more responsibilities and influence the strategic direction of our AI products while contributing to high-impact innovation.

Join us at our SPA, one of the world's finest luxury spas, where we provide tailored relaxation and care experiences.We are seeking a passionate and talented Spa Practitioner/Therapist (M/F) to become part of our team and deliver unique wellness moments for our guests.Key Responsibilities:Deliver Exceptional Customer Experiences:Welcome each client with elegance and courtesy, ensuring personalized treatments that cater to their specific needs.Perform a Wide Range of Treatments:Administer massages and facial and body treatments according to established protocols, maintaining our SPA's quality and hygiene standards, in collaboration with our brands 111Skin and Dr. Barbara Sturm.Enhance Guests' Overall Well-being:Ensure that every client leaves the SPA feeling fully relaxed and satisfied.Contribute to the SPA's Operations:Prepare treatment rooms, manage product inventory, and maintain a spotless and harmonious environment.Represent the Royal Monceau - Raffles Paris:Embody the values of our hotel through discretion, professionalism, and impeccable presentation.

Our ImpactWe are on the lookout for a passionate IT Finance Engineer to become a vital member of our Core Finance Squad within our IT department. In this role, you will play a crucial part in advancing our information systems across France, Germany, Italy, and the Netherlands by implementing cutting-edge solutions and tools for our business teams. Your efforts will support healthcare professionals utilizing Doctolib and enhance the user experience for millions of Europeans visiting our platform each month.Joining the tech team at Doctolib means contributing to the creation of innovative products and features aimed at improving the daily experience of care teams and patients alike.

We are seeking a talented and experienced Senior Software Engineer to join our dynamic team at believe. In this role, you will be responsible for designing, developing, and maintaining high-quality software solutions that meet the needs of our users. You will collaborate closely with cross-functional teams to understand requirements and implement innovative solutions that drive our mission forward.The ideal candidate is passionate about technology, has a strong foundation in software engineering principles, and is eager to tackle complex challenges. If you thrive in a fast-paced environment and are looking to make a significant impact, we want to hear from you!

believe is hiring a Senior Software Engineer with a focus on React and Java for its Paris office. This role centers on creating web applications that deliver effective user experiences. Key responsibilities Design and build web applications using React and Java Collaborate with colleagues across different teams to understand requirements and deliver solutions Support ongoing enhancements to software products Location This position is based in Paris.

Join the innovative Ubisoft AI Initiatives team and help shape the future of information management within the gaming industry. We are at the forefront of developing advanced hybrid search systems and reasoning agents that transform raw data into rapid, informed decision-making tools. If you are passionate about enhancing human-AI collaboration to tackle intricate challenges, this is the perfect opportunity for you. We are on the lookout for a seasoned Senior Software Engineer to contribute to the creation of robust back-end systems that power our state-of-the-art AI applications.Key Responsibilities:Back-End Systems Development: Design and build scalable, high-performance back-end services that underpin AI solutions.Performance Optimization: Achieve low-latency and high-throughput operation for AI models, agents, and APIs, prioritizing speed and reliability.Cross-Team Collaboration: Work closely with data scientists and ML engineers to seamlessly integrate AI models and advanced agents into production environments, ensuring efficient deployment and monitoring.Cloud Infrastructure Management: Develop and sustain cloud-native solutions utilizing platforms such as AWS and Azure, focusing on scalability, security, and cost-effectiveness.Technical Leadership: Guide junior engineers, perform code reviews, and contribute to the team’s overarching technical strategy.Continuous Learning: Keep abreast of emerging trends and technologies in AI, cloud computing, and software engineering, and propose innovative ideas.As a Senior Software Engineer in AI Applications, you will have a unique opportunity to engage in leading-edge projects that influence the advancement of AI technologies. You will be able to:Participate in ongoing professional development to remain at the forefront of AI innovation.Assume greater responsibilities and influence the strategic development of our AI product offerings, driving significant innovations.

Join our innovative team that is transforming the future of global living.At The Flex, we envision a world where renting a home is instant, intelligent, and seamless—much like booking a ride. Our mission is ambitious: to empower anyone to live anywhere, anytime, without hassle.Driven by Base360.ai, our unique automation engine, we are crafting the operating system for modern renting—integrating property data, streamlining operations, and facilitating smooth stays across continents.If you are passionate about complex systems, automation, and developing software that has real-world applications, this position offers you the opportunity to take ownership and make a significant impact. What You'll CreateAs a Senior Software Engineer, you will design, develop, and scale essential components of The Flex platform—from core services and APIs to automation workflows and real-time systems.You will work with considerable autonomy, managing problems from start to finish and directly influencing architectural decisions while remaining deeply engaged with production code.This role is for engineers who prioritize impact over meetings and take pride in constructing systems that are reliable, elegant, and scalable. Your ObjectivesDevelop Core SystemsCreate and maintain scalable services that enhance bookings, payments, availability, pricing, and guest experiences.Design Robust APIsEstablish clean, well-structured APIs that connect Base360.ai with internal tools and external partners.Automate OperationsConstruct event-driven workflows that eradicate manual tasks and unlock operational efficiencies.Deploy with AssuranceImplement and manage cloud-native infrastructure on AWS with an emphasis on reliability, security, and performance.Tackle Meaningful ChallengesEngage in real-time booking synchronization, pricing intelligence, keyless access systems, AI-driven alerts, and live operational dashboards.Collaborate for SuccessPartner closely with product, data, and operations teams to transform complex requirements into straightforward, effective systems. Ideal Candidate ProfileExtensive experience in building production systems with Node.js, React, and AWS.Solid understanding of software design principles and best practices.Proficient with CI/CD practices and tools.Strong communication skills and a collaborative mindset.

Join our dynamic team at believe as a Senior Software Engineer. In this pivotal role, you will leverage your expertise in React and Java to design and implement innovative software solutions that enhance our platform and improve user experience.Your contributions will be vital in driving our projects forward and ensuring the effective delivery of high-quality software. We are looking for a passionate engineer who thrives in a collaborative environment and is eager to tackle complex challenges.

Join our dynamic team at vusiongroupsa as a Senior Software Engineer, where you'll have the opportunity to contribute to innovative projects that shape the future of technology. We are looking for a skilled professional who can bring their expertise in software development, work collaboratively with our R&D department, and drive excellence in our engineering practices.

About VibeAt Vibe.co, we are revolutionizing the way brands connect with audiences in the streaming era. We envision that streaming TV transcends traditional brand awareness; it is poised to be the next major avenue for performance marketing. Our mission is to create the infrastructure that harnesses this $100 billion potential.As a leader in Audience First Streaming TV Advertising, Vibe.co empowers marketers to leverage TV as an effective growth channel. Our comprehensive solution integrates hyper-targeted audience segmentation, AI-driven insights, real-time campaign optimization, and incrementality measurement, providing brands of all sizes the accuracy and transparency they expect from social and search advertising, applied to the TV landscape.With over 10,000 trusted brands and a reach of more than 120 million households across 500+ apps and channels, Vibe.co consistently delivers an impressive average return on ad spend of 250% and a 20% lift in sales. Achieving a $100 million revenue run rate in less than two years, we are among the fastest software companies to reach this remarkable milestone.Our investors include notable firms such as Hedosophia (early backer of Spotify, Uber, and Airbnb), Elaia, Singular, QuantumLight, and Illusian, alongside angel investors like Carolyn Everson, board member of The Walt Disney Company and Coca-Cola. Nirav Tolia, CEO of Nextdoor, is also a member of our board of directors.Founded in 2022, Vibe.co is recognized as a pioneering platform in streaming TV advertising, merging the power of performance marketing akin to Meta and Google with the fast-evolving media landscape.About the RoleAs a key member of the Performance team, you will play a vital role in managing advertiser outcomes at Vibe. Your focus will be on bidding, pacing, and enhancing the prediction stack that drives these elements. You will report directly to Clément Schiano, Engineering Manager for Performance.This position has been created to address a clear roadmap and enhance execution capabilities, as well as to mitigate knowledge concentration challenges within the team. We seek an individual who can absorb, challenge, and expand upon existing expertise, going beyond simply delivering tickets.Three compelling reasons why a talented candidate would find this role appealing:

Join Aircall, a groundbreaking AI-driven customer communications platform utilized by over 22,000 businesses globally, enhancing revenue, expediting issue resolution, and empowering customer-facing teams. We are transforming customer interactions by seamlessly integrating voice, SMS, WhatsApp, and AI into a cohesive workspace.Our growth is fueled by a core philosophy: enable teams to work smarter, not harder. With innovations like Aircall's AI Voice Agent automating routine calls, AI Assist simplifying post-call tasks, and AI Assist Pro providing real-time support, our solutions enhance productivity leading to increased revenue and swift resolutions.Headquartered in Paris, we also boast a robust North American presence in Seattle, along with teams across Madrid, London, Berlin, San Francisco, New York City, Sydney, and Mexico City. Our product has garnered a loyal customer base, and we are rapidly scaling with the backing of premier investors and a commitment to continuous AI innovation across our offerings.At Aircall, you will be part of a dynamic organization. We are ambitious, product-oriented, and execution-driven, emphasizing impactful work, swift decision-making, and genuine growth.Our Work Culture at Aircall: We are dedicated to our customers, driven by data, and focused on delivering impactful results. We value ownership, continuous learning, and thoughtful speed. If you excel in a collaborative, fast-paced environment where trust and impact are paramount, you'll thrive here.We are seeking a passionate and engaged Senior Software Engineer to enhance our expanding engineering department and contribute to our teams.As a Senior Software Engineer, you will lead the design, development, deployment, and operation of crucial features that deliver value to our customers. Your responsibilities will include ensuring operational excellence, monitoring key metrics, enhancing observability, promoting best practices, and mentoring team members across the Engineering division.Driven by quality, excellence, and agility, you will play a pivotal role in elevating our delivery processes. Utilizing NodeJS and Typescript within a robust back-end framework on AWS, you will tailor solutions to meet varied requirements.