> Markdown version of [/jobs/ext/1493022-senior-software-engineer-fullstack-kotlin-react](https://www.wearedevelopers.com/jobs/ext/1493022-senior-software-engineer-fullstack-kotlin-react). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Software Engineer Fullstack Kotlin / React - **Company:** DOCTOLIB SAS - **Location:** Levallois-Perret, France - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Java (Programming Language), Artificial Intelligence, Computer Vision, Software Quality, Databases, Mobile Application Software, Java Virtual Machine (JVM), Python (Programming Language), Pair Programming, Ruby, Software Engineering, TypeScript, ReactJS, Spring-boot, Swift (Programming Language), Kotlin, React Native - **Published:** July 30, 2026 - **Apply:** https://fr.indeed.com/viewjob?jk=2a5ca6ab98f6e6a1 ## About the Role * You have fullstack software engineering experience with React/Typescript and the JVM ecosystem (Java, Kotlin, Spring Boot) - Ruby experience is a bonus * You have a "user first" mindset and are committed to building secure, well-tested, and pragmatic code * You bring a strong testing culture and are passionate about code quality * You are proactive, curious, and eager to share knowledge through pair programming and collaboration ## Description As a Senior Software Engineer, you will help doctors create and deliver all types of prescriptions, covering the full lifecycle from drug prescription creation and renewal to medication search and paramedical care, across France and Germany. Team is also responsible for the creation of more than 2M prescriptions per week. You will work within a regulatory-heavy environment, collaborate with external drug database providers, and contribute to medication alert features based on patient profiles. What you'll build Your responsibilities include but are not limited to: Collaborate with product managers, designers, and engineers to build features that deliver value to healthcare professionals and patients Design and implement technical solutions ensuring performance, security, and usability across our fullstack applications (React, TypeScript, JVM ecosystem) Contribute to code quality through reviews, testing, and continuous improvement of our development practices Share your expertise and collaborate across teams to evolve 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 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. ## Related Videos - [Watch Tests Go Brrrr! : Getting Started with Cypress in ReactJS](https://www.wearedevelopers.com/videos/282-watch-tests-go-brrrr-getting-started-with-cypress-in-reactjs) - [Kotlin Multiplatform - True power of native code reuse](https://www.wearedevelopers.com/videos/4-kotlin-multiplatform-true-power-of-native-code-reuse) - [Coffee with Developers: David Heinemeier Hansson](https://www.wearedevelopers.com/videos/875-coffee-with-developers-david-heinemeier-hansson) - [Build and Deploy a Fullstack App with Open Source Tooling](https://www.wearedevelopers.com/videos/775-build-and-deploy-a-fullstack-app-with-open-source-tooling) - [Why Kotlin is the better Java and how you can start using it](https://www.wearedevelopers.com/videos/661-why-kotlin-is-the-better-java-and-how-you-can-start-using-it) - [Moving from Java to Kotlin](https://www.wearedevelopers.com/videos/384-moving-from-java-to-kotlin) ## Related Articles - [React Developer Salary [2023]](https://www.wearedevelopers.com/magazine/198-react-developer-salary-2023) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [16 Best Free React UI Libraries in 2025](https://www.wearedevelopers.com/magazine/148-16-best-free-react-ui-libraries-in-2025) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [Where to Find Entry-Level Software Engineering Jobs](https://www.wearedevelopers.com/magazine/397-where-to-find-entry-level-software-engineering-jobs) - [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers)