Lead Mobile Engineer - React Native

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

Doctolib

WHAT YOU'LL DO We are looking for a Staff Mobile Engineer with strong expertise in React Native to join our Patient domain at Doctolib. As a Mobile Staff Engineer, your mission will be to work on transforming the Doctolib mobile app into a full health companion powered by AI to help people lead healthier lives. You will play a key role in improving the quality, UX, and depth of our mobile application while contributing significantly to the technical foundations of mobile development for the team. 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 product, design, and business teams. Your responsibilities include but are not limited to: * Establish and evolve mobile architecture patterns and technical standards for the patient domain * Drive technical excellence across mobile development, ensuring high code quality and best practices * Contribute to the technical roadmap and guide architectural decisions for the mobile platform * Mentor and support mobile engineers in implementing robust, scalable solutions * Lead by example in building features that enhance the user experience and app performance   ABOUT OUR TECH ENVIRONMENT * Our solutions are built on a single fully cloud-native platform that supports web and mobile app interfaces, multiple languages, and is adapted to the country and healthcare specialty requirements. To address these challenges, we are modularizing our platform run in a distributed architecture through reusable components. * Our mobile applications are built with React Native. The rest of our stack is composed of Rails, TypeScript, Java, Python and Kotlin. * We leverage AI ethically across our products to empower patients and health professionals. Discover our AI vision here and learn about our first AI hackathon here!   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 have at least 5+ years of software engineering experience building high-usage mobile applications, ideally in B2C environments * You have deep expertise in React Native and mobile development best practices * You have a track record of establishing technical standards and improving code quality at scale * Are product-oriented and comfortable guiding your teammates to suggest tradeoffs to balance business needs with technical constraints. * You demonstrate strong technical leadership and the ability to guide teams through complex technical challenges * You are fluent in English Now it would be fantastic if you: * Have experience working in healthcare or other regulated industries * Have contributed to open-source mobile projects or mobile developer communities * Have experience with native iOS or Android development alongside React Native   WHAT WE OFFER * Free comprehensive health insurance for you and your children * Parent Care Program: receive one additional month of leave on top of the legal parental leave * 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 * Work Council subsidy to refund part of sport club membership or creative class * Up to 14 days of RTT * Lunch voucher with Swile card   JOB DETAILS * Permanent position * Full-time * Paris, France * Start date: as soon as possible * Working mode: hybrid   THE INTERVIEW PROCESS * Recruiter Interview * Mobile Pair Programming * Mobile App Design * Behavioral Interview * At least one reference check * Offer! If you would like to find out more about tech life at Doctolib, feel free to read our latest Medium blog articles!      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.

React Native Engineer, Merchant Experience Mobile

Stripe

WHO WE ARE ABOUT STRIPE Stripe is a financial infrastructure platform for businesses. Millions of companies—from the world's largest enterprises to the most ambitious startups—use Stripe to accept payments, grow their revenue, and accelerate new business opportunities. Our mission is to increase the GDP of the internet, and we have a staggering amount of work ahead. That means you have an unprecedented opportunity to put the global economy within everyone's reach while doing the most important work of your career. ABOUT THE TEAM We're a mobile engineering team based in Barcelona, focused on building world-class mobile applications that deliver excellent user experiences for Stripe merchants. React Native is at the core of how we build—it lets us move fast, share code across platforms, and ship high-quality experiences to millions of businesses worldwide without compromise. As a Senior Mobile Engineer on our team, you'll help shape our React Native architecture, set the bar for engineering quality, and play a meaningful role in defining what great mobile development looks like at Stripe. This is a high-impact role where your decisions will be felt across the product—and across the millions of merchants who depend on our apps every day. WHAT YOU'LL DO As a Senior Mobile Engineer, you'll own significant parts of our React Native codebase, lead architectural decisions, and help grow the team around you. You'll work closely with product, design, and cross-functional partners to deliver polished, performant mobile experiences. RESPONSIBILITIES * Spearhead the design and development of critical product features, partnering with cross-functional teams to transform complex requirements into seamless, high-performance mobile experiences * Champion the integration of AI and cutting-edge development tools to drive efficiency, elevate code standards, and cultivate a culture of AI-assisted engineering * Own architectural decisions for the mobile layer—including navigation, state management, native module integration, and performance strategy * Drive code quality through thorough code reviews, clear standards, and a strong testing culture * Mentor and support junior and mid-level engineers, helping them grow technically and professionally * Proactively identify and resolve performance bottlenecks across the JS thread, native bridge, and render pipeline, while scaling our mobile CI/CD infrastructure, release processes, and engineering tooling * Act as the primary mobile platform liaison for internal teams, effectively translating requirements into well-scoped mobile initiatives while upholding rigorous standards for code quality and architectural integrity WHO YOU ARE We're looking for someone who meets the minimum requirements to be considered for the role. If you meet these requirements, you are encouraged to apply. The preferred qualifications are a bonus, not a requirement. MINIMUM REQUIREMENTS * 5+ years of professional mobile development experience, with a strong focus on React Native * Strong proficiency in TypeScript and modern JavaScript * Solid understanding of mobile app architecture and design patterns (e.g., Flux, Redux, MobX, or similar) * Proven expertise in React Native, encompassing component architecture, performance tuning, and a demonstrated ability to ship and maintain high-quality production applications at scale * Excellent problem-solving skills and ability to communicate complex technical concepts clearly PREFERRED QUALIFICATIONS * * Experience with Expo (managed or bare workflow) * Experience designing and maintaining mobile CI/CD pipelines (e.g., Fastlane, GitHub Actions, Bitrise) * Experience building or contributing to mobile SDKs or shared component libraries * Experience with backend development (REST APIs and GraphQL) * Contributions to open-source React Native libraries or the broader JS and mobile ecosystem * Experience mentoring engineers and contributing to a team's engineering culture * Familiarity with native iOS (Swift, UIKit) or Android (Kotlin, Android SDK) development * Experience working in a remote-first or distributed engineering environment

Mobile Engineer, Treasury

Stripe

WHO WE ARE ABOUT STRIPE Stripe is a financial infrastructure platform for businesses. Millions of companies—from the world's largest enterprises to the most ambitious startups—use Stripe to accept payments, grow their revenue, and accelerate new business opportunities. Our mission is to increase the GDP of the internet, and we have a staggering amount of work ahead. That means you have an unprecedented opportunity to put the global economy within everyone's reach while doing the most important work of your career. ABOUT THE TEAM The Direct Surfaces Team's mission is to make it delightful for users to manage their money. We're rebuilding and unbundling the core of Stripe so that no matter what the business, the location, or the use case there is a single place that can fulfill all financial needs: Stripe Treasury. This is a 0 → 1 new business at Stripe, so if that sounds exciting we'd love to hear from you. WHAT YOU'LL DO Engineers at Stripe are comfortable working on new products under fluid conditions, seamlessly balancing tactical and strategic considerations all in service of our users. RESPONSIBILITIES * Deliver a world-class mobile experience for Treasury users, including working with our partners to design and launch new features and capabilities * Scope and lead technical projects, laying the groundwork for our products to iteratively evolve and scale  * Design, build, expand, and maintain mobile-specific view cross-platform components, backing APIs and their services  * Align our technical decisions with the broad strategic initiatives at Stripe, while also advocating for needs specific to emerging new businesses  * Work with engineers across the company to understand when to leverage existing infrastructure versus when building a bespoke solution is prudent  * Make effective tradeoffs that consider business priorities, user experience, and a sustainable technical foundation WHO YOU ARE We're looking for someone who meets the minimum requirements to be considered for the role. If you meet these requirements, you are encouraged to apply. The preferred qualifications are a bonus, not a requirement. MINIMUM REQUIREMENTS * Have a strong technical background, including 3+ years of industry experience * Have experience building mobile applications including working beyond just the client * Understand good practices when building and working with UIs and APIs * Measure your success in terms of business impact, not lines of code * Internalize the best ideas from across the organization, humbly setting a vision that others are excited to get behind * Work well cross-functionally and earn trust from coworkers at all levels. You are often cited as the inspiration for engineers who join your team * Care deeply about mentorship and growing engineers • Prefer simple solutions and designs over complex ones, and have a good intuition for what will last and scale * Thrive in a collaborative environment * Enjoy working with a diverse group of people with different areas of expertise. Engineering works closely with a variety of teams including Sales and Support to better understand our customers' needs, Legal and Accounting to understand how global policies influence our money-moving infrastructure, and more PREFERRED QUALIFICATIONS * Have experience using React Native * Have experience in ensuring great user experience and ease of use of features for products you build * Have experience with financial product companies and interest in financial products and markets