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Staff Mobile Engineer - React Native (x/f/m)

Doctolib

Full-time|On-site|Paris, Paris, France

Join Our Team as a Staff Mobile Engineer - React NativeAt Doctolib, we are seeking a talented Staff Mobile Engineer with profound knowledge in React Native to become a part of our innovative Patient domain.In this pivotal role, you will help us transform the Doctolib mobile app into a comprehensive AI-powered health companion, enabling individuals to lead he…

Mar 19, 2026

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Staff Mobile Engineer

Joko

Full-time|On-site|Paris

At Joko, we empower consumers to shop smarter and revolutionize the shopping experience. Our mission is to help individuals make informed decisions, find exactly what they need, and ultimately save money.Founded in Paris, Joko is a certified B Corp tech company with a diverse team of over 90 talented professionals across Paris, Barcelona, New York, and beyond. With more than 5 million users benefiting from our services at over 10,000 merchants, we are changing the way people shop every day.Our innovative solutions range from cashback offers and automatic coupons to price alerts and carbon tracking. We are currently developing an AI-powered shopping assistant designed to help users discover the best products based on price, quality, and environmental impact.Having achieved profitability in our core market, we are now expanding our reach globally, with a strong emphasis on the US market. Join us on this exciting journey as we build the future of shopping! Engineering Team OverviewOur Engineering team thrives on tackling complex technical challenges with elegant solutions. By prioritizing product innovation and design, they are redefining the shopping experience. Their goal is to positively impact the daily lives of millions of users worldwide.As a Staff Mobile Engineer at Joko, you will play a pivotal role in shaping our mobile application. Collaborating closely with the Product team, you will be involved in the entire lifecycle of product development, from exploration and design to implementation and production deployment.Our Engineering team is rapidly growing, fostering continuous innovation across our product and technology stack to revolutionize the online shopping experience. ResponsibilitiesWe value ownership and impact at Joko. In your role as Staff Mobile Engineer, you will take charge of significant components of our mobile application, overseeing everything from technical design to delivery and ongoing enhancements.Mobile Architecture & Development: Contribute to the definition and evolution of our React Native architecture, while designing and developing scalable, maintainable, and high-performance features in our mobile application.Codebase Modernization: Gradually enhance our existing React Native codebase by integrating modern patterns, best practices, and platform capabilities, ensuring a balance between innovation and stability.

Jan 22, 2026

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React Native Engineer at Air Apps | Paris

Air Apps

Full-time|On-site|Paris

About Air Apps Air Apps began in Lisbon in 2018 as a family-founded company with a clear goal: build the world’s first AI-powered Personal & Entrepreneurial Resource Planner (PRP). Since then, the team has expanded to San Francisco and reached over 100 million downloads, all while staying self-funded. The company focuses on pushing boundaries in AI-driven solutions that help people plan, work, and live better. Team members play a direct role in shaping products that empower users worldwide. React Native Engineer , Role Overview Air Apps is growing its team in Paris and seeking a React Native Engineer to help build and maintain a suite of mobile applications. This role involves close collaboration with designers, product managers, and engineers to deliver seamless, high-quality user experiences. The work centers on delivering applications that meet high standards for both quality and usability. This posting is part of a talent pool initiative ahead of the official job launch. Interested candidates will be contacted when the position formally opens. Location and Relocation This is a fully onsite position based at the Lisbon office. Daily work happens in person with cross-functional teams. Relocation support is available for those moving to Lisbon.

Apr 17, 2026

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Senior Frontend Software Engineer - Design System & Mobile (x/f/m) in Paris or Nantes

Doctolib

Full-time|On-site|Paris, Paris, France

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.

Mar 23, 2026

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Senior Frontend Software Engineer - React (x/f/m)

Doctolib

Full-time|On-site|Paris, Paris, France

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.

Mar 26, 2026

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

Doctolib

Full-time|On-site|Paris, Paris, France

Join Our Innovative TeamBecome a pivotal member of the Healthcare Access stream within the Patient Domain at Doctolib. This stream is essential to our product, guiding patients through their entire journey to accessing care, from finding the right practitioner to booking their appointment and beyond.Our teams are addressing some of the most compelling and impactful challenges in digital health: enhancing search and discovery experiences to enable patients to find the right care faster, developing seamless appointment booking processes that function effectively at scale, designing a delightful and dependable patient app experience, and broadening access to healthcare for new users and diverse use cases across Europe.As a Staff Engineer in this stream, your contributions will directly influence the interfaces and systems utilized by millions of patients daily. Here, web performance, frontend architecture, and user experience are not mere engineering considerations; they are integral to how individuals access their health.

Mar 26, 2026

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React Engineer

Air Apps

Full-time|On-site|Paris

About Air Apps Air Apps is a family-founded company focused on developing the world's first AI-powered Personal & Entrepreneurial Resource Planner (PRP). Since our start in 2018 in Lisbon, we have grown to operate in both Lisbon and San Francisco. Our apps have reached over 100 million downloads worldwide, all while remaining self-funded. We challenge standard approaches and aim to build AI-driven solutions that make a difference for people everywhere. Creativity and long-term thinking guide our work as we build products that empower individuals globally. React Engineer , Paris (On-site) We are building our talent pool for a future opening for a React Engineer in Paris. This role focuses on creating responsive, accessible user interfaces for our web applications. The position is fully onsite at our Paris office, where close collaboration with designers, product managers, and backend engineers is part of daily work. We are open to supporting relocation for the right candidate. What You Will Do Build and maintain user interfaces using React for our web products Translate wireframes and prototypes into stable, scalable front-end experiences Work closely with cross-functional teams to deliver seamless user experiences Next Steps This listing is to connect with talented engineers as we prepare to post the official position. We will reach out once the job is formally open.

Apr 17, 2026

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Tech Lead - React (H/F)

Altersolutions

Full-time|On-site|Paris

Join Altersolutions as a Tech Lead specializing in React to lead innovative projects from conception through execution. You will be responsible for guiding a talented team of developers, ensuring best practices in coding and design, and delivering high-quality software solutions. Your role will involve collaborating with cross-functional teams, mentoring junior developers, and driving the technical vision of our projects.

Oct 17, 2022

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Mobile DevOps Engineer

airapps

Full-time|On-site|Paris

airapps is hiring a Mobile DevOps Engineer in Paris. This position focuses on connecting development and operations teams to improve how mobile applications are deployed and maintained. Role overview As a Mobile DevOps Engineer, the main responsibility is to support seamless deployment processes for mobile apps. The role involves close collaboration with both developers and operations staff to make sure releases are smooth and reliable. What you will do Work with development and operations teams to streamline mobile app deployment. Help ensure mobile applications remain scalable, efficient, and stable. Encourage a collaborative and creative work culture. Location This role is based in Paris.

Apr 29, 2026

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IT Finance Engineer (x/f/m)

Doctolib

Full-time|On-site|Paris, Paris, France

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.

Mar 19, 2026

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Senior Mobile Android Engineer for Social Mobile Applications

Dailymotion

Full-time|On-site|Paris

Join Dailymotion as a Senior Mobile Android Engineer, where you'll be at the forefront of developing engaging social mobile applications. In this role, you will leverage your expertise in Android development to create innovative solutions that enhance user experience and drive engagement across our platform.

Apr 30, 2026

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Senior Software Engineer - React & Java

believe

Full-time|On-site|Paris

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.

Apr 28, 2026

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AI-Native Software Engineer at Theodo | Paris

Theodo

Full-time|On-site|Paris

Role Overview Theodo is hiring an AI-Native Software Engineer in Paris. This position focuses on building software for the fintech sector using artificial intelligence tools and methods. The team works closely with clients to improve how financial products work and feel. What You Will Do Develop software solutions that use AI to address challenges in finance Work with other engineers to design, build, and refine applications Help improve clients' operations and the experience of end users Collaboration Work alongside skilled engineers on projects that shape the future of fintech. Expect regular knowledge sharing and teamwork throughout each project cycle.

Apr 20, 2026

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Senior Mobile Engineer - Paris

Swile

Full-time|On-site|Paris, France

At Swile, we are committed to enhancing professional experiences and boosting employee satisfaction through innovative product solutions. As a Senior Mobile Engineer, you will be instrumental in creatively addressing challenges while maintaining a focus on speed, practicality, and excellence. Your contributions will shape a robust mobile platform that supports various product domains, empowering over 5.5 million users across 85,000 companies in France and Brazil.

Feb 24, 2025

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Staff Engineer

Sonio

Full-time|On-site|Paris office

Join Sonio as a Staff Engineer and become a key player in our innovative team, where your expertise in engineering will shape the future of our cutting-edge technology. You will collaborate with cross-functional teams to design and implement solutions that enhance our products and drive company success.

Apr 30, 2026

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Fullstack Java / React Developer H/F

nexton

Full-time|On-site|Paris

nexton is looking for a Fullstack Java / React Developer based in Paris. This position centers on developing and refining applications using both Java and React. Collaboration with colleagues from various teams is a key part of the job, with a focus on creating user-friendly interfaces and enhancing the overall user experience. What you will do Design and build applications with Java and React Work alongside cross-functional teams to develop interfaces Offer ideas to improve usability and boost user satisfaction Requirements Experience with backend development in Java and frontend work in React Interest in tackling complex problems with creative solutions Ability to thrive in a collaborative and evolving environment

Apr 23, 2026

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Front-End Engineer (React) at Blockchain | Paris

Blockchain.com

Full-time|On-site|Paris

Blockchain.com is at the forefront of revolutionizing the financial landscape through cryptocurrency. As the leading and fastest-growing global crypto company, we empower millions of individuals around the globe to access cryptocurrency securely. Since our inception in 2011, we have gained the trust of over 90 million wallet holders and more than 40 million verified users, facilitating over $1 trillion in crypto transactions.We are on the hunt for a talented Front-End Engineer with a passion for crypto and Web3 technologies to join our dynamic engineering team. In this role, you will work on developing innovative Blockchain applications that are among the most popular in the crypto ecosystem. Your contributions will shape user interfaces that power future wallets, block explorers, financial and market data products, along with cutting-edge visualizations.Our engineering teams engage in all phases of the product life cycle, encompassing idea generation, design, prototyping, planning, execution, and deployment.

Jan 29, 2026

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Frontend Engineer with React and TypeScript at connecthum | Paris

connecthum

Full-time|On-site|Paris

Join us as a Frontend Engineer specializing in TypeScript and React at connecthum, an innovative AI infrastructure startup dedicated to developing advanced solutions for the safety and management of large-scale AI systems.About connecthum:A pioneering AI-native product company focused on AI safety and infrastructure.Supported by a diverse group of international investors.Expertly handling large volumes of AI traffic within enterprise environments.Creating and optimizing proprietary models for enhanced performance and reliability.A compact, highly skilled team committed to rapid delivery.Our mission is to develop a robust control and evaluation framework for AI systems, empowering organizations to define, test, and regulate AI behaviors in real-world contexts.Your Contributions:Take ownership of and deliver comprehensive product features across the frontend and full stack.Craft user-friendly, high-quality UX designs that simplify complex AI workflows.Develop seamless product flows, from initial onboarding to advanced analytical capabilities.Work collaboratively with founders, product managers, designers, machine learning experts, and researchers.Translate state-of-the-art AI functionalities into dependable user-centric tools.Lead the product development lifecycle while shaping technical direction and product strategies.This hands-on position lies at the intersection of product development, AI, and engineering.Technical Environment:Proficient in TypeScript, React, and Next.js.Utilizing Tailwind CSS for design systems.Integrating with LLM APIs (OpenAI API, function calling, context orchestration).Creating data visualization and analysis interfaces.Building full-stack product architecture.Ensuring effective production deployment and system observability.Your Skills:Demonstrated expertise in TypeScript, React, and Next.js.Experience in developing product features from concept to deployment.Comfortable working with LLM APIs and navigating AI product workflows.Proven ability to collaborate with multidisciplinary teams.

Feb 19, 2026

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Fullstack Engineer - Go / React at Qonto | Paris

Qonto

Full-time|On-site|Paris

Join Our Mission: We are dedicated to empowering SMEs to thrive in their business endeavors by providing Europe's premier finance workspace. Our platform integrates top-notch tools such as streamlined invoicing, effective spend management, and pre-accounting features, all backed by our dedicated 24/7 support team, ensuring that our clients navigate their financial responsibilities with ease.About Qonto: Founded in July 2017 by Alexandre and Steve, Qonto has quickly established itself as a trusted partner for over 600,000 customers. With a growing team of over 1,600 Qontoers, we proudly feature in the LinkedIn Top Companies ranking in France!Our Core Values:Customer focus | We prioritize our customers in all our endeavors.Ownership | We take responsibility for our roles and strive to achieve results.Teamwork | We simplify collaboration and support each other.Mastery | We constantly seek to improve and elevate standards.Integrity | We act ethically and with respect towards all individuals.Diversity & Inclusion: At Qonto, we are committed to creating an inclusive environment where everyone can succeed. We evaluate applicants based on their skills and potential, fostering diversity with 55% of our team being international, 44% women, and 20% parents. Join us in cultivating a workplace that values diversity and individuality.Learn about our commitment to a fair hiring process.⭐ Your Role:As a Fullstack Engineer, you will play a pivotal role in developing financial tools that empower over 600,000 SMEs to manage their finances efficiently. Collaborating closely with our Head of Engineering, Yanis, you will focus on creating impactful financial features that simplify processes for SMEs and accountants.‍‍ Responsibilities:• Feature Ownership: Take charge of features from conception to deployment, working closely with Product Managers to define technical specifications and deliver results.• Robust Tool Development: Design and implement scalable solutions for pre-accounting functionalities, ensuring a seamless user experience.

Feb 5, 2026

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M&A Tech Engineer

Mistral AI

Full-time|On-site|Paris

About Mistral AIAt Mistral AI, we harness the transformative power of artificial intelligence to streamline tasks, enhance creativity, and foster learning. Our innovative technology seamlessly integrates into everyday workflows, empowering users across various domains.We are committed to democratizing AI through high-performance, optimized, open-source, and cutting-edge models and solutions. Our comprehensive AI platform is tailored to meet enterprise needs, whether deployed on-premises or in cloud environments. Our offerings include le Chat, the AI assistant designed to elevate both professional and personal tasks.As a vibrant and collaborative team, we are passionate about the potential of AI to revolutionize society. Our diverse workforce thrives in competitive environments and is dedicated to fostering innovation, with teams distributed across France, the USA, the UK, Germany, and Singapore. We pride ourselves on being creative, humble, and team-oriented.Join us at Mistral AI, a pioneering company at the forefront of shaping AI's future. Together, we can create a significant impact. Discover more about our culture at https://mistral.ai/careers.Role Overview: M&A Technology EngineerIn the role of M&A Technology Engineer, you will play a pivotal role in driving our growth strategy through strategic acquisitions. This position requires a robust technical background coupled with a strategic mindset.Your key responsibilities will include identifying and assessing M&A opportunities that align with our technical and business objectives, ultimately enhancing Mistral’s capacity for innovation and expanding our market footprint. You will collaborate with cross-functional teams including Product, Engineering, Legal, and Finance to evaluate potential acquisition targets from a technical standpoint.By executing on high-potential acquisition initiatives, you will contribute to strengthening our technical capabilities, broadening our product range, and solidifying our market position. Your contributions will be instrumental in guiding Mistral AI's future and advancing our mission to democratize AI.

Oct 7, 2025

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