Intern - Mobile Developer (iOS/Android)

About Tessan Tessan is a French startup focused on telemedicine. The company’s mission: make medical care more accessible, especially in areas with limited healthcare options. Over 1,500 devices have been deployed across France in under six years. Tessan’s goal is clear, every French citizen should be able to reach a doctor within 15 minutes of home. Internship Overview To keep up with growth, Tessan is expanding its technical team. The Mobile Developer Intern (iOS & Android) will help build and improve the mobile apps that power Tessan’s digital healthcare services. What You Will Do Mobile Development (iOS & Android): Design, develop, and maintain Tessan’s mobile applications for iOS and Android. Add new features in close collaboration with product teams. Participate in testing, debugging, and ongoing improvements. Help ensure app quality, performance, and reliability. Architecture & Performance: Contribute to decisions on mobile architecture, including native and cross-platform approaches. Work on optimizing app performance and stability. Support efforts to improve user experience. Integration & APIs: Collaborate with backend teams to integrate APIs. Manage data flow between mobile apps and backend services. Quality & Best Practices: Help define and maintain quality standards, including testing, CI/CD, and documentation. Suggest and implement improvements to development processes. Deployment & Automation: Assist with app deployments to the App Store and Google Play. Contribute to automating build and release processes. Participate in monitoring applications after release. Cross-Functional Collaboration: Work closely with product, design, backend, and operations teams. Take part in technical discussions and team meetings. Location Paris, Île-de-France, France

Join a vibrant technical team of around fifty people in a warm and enjoyable work atmosphere!As a key member of the QA department, you will be responsible for ensuring the quality of our mobile applications.Your role involves engaging in various phases of the application development project, with the following responsibilities:Assist in drafting the test specifications and defining both automated and manual test scenarios.Report and track identified anomalies.

Role overview Nexton is seeking a Mobile iOS Developer for a full-time position in Paris. The main focus is designing and building mobile applications for iOS, with a strong emphasis on user experience. This role offers the chance to work on projects that directly impact how users interact with mobile products. What you will do Develop and maintain iOS mobile applications from concept through release Work closely with colleagues across different teams to deliver new features and solutions Share ideas to improve product performance and usability Requirements Solid understanding of iOS frameworks Interest in projects related to Telco, Media, and Transport Ability to adapt to changing priorities and new challenges Dedication to writing high-quality, maintainable code This role suits those who value teamwork and want to make a difference through mobile technology.

Join Theodo Apps: Pioneers in Digital InnovationSince 2009, Theodo has empowered innovative businesses by designing, developing, and deploying ingenious digital products leveraging cutting-edge technology and Lean methodologies.With exceptional growth over the last 15 years, our team has expanded to over 700 passionate Software Engineers committed to continuous improvement. As we grow, we have structured our organization into specialized entities focusing on technologies (Theodo Apps, Theodo Cloud, Theodo Data & AI) and industries (Fintech, Govtech, Healthtech, Consumer Goods). By 2025, Theodo aims to achieve a revenue of €100 million.Having successfully completed over 130 projects, Theodo Apps specializes in cross-platform application development (mobile, web, and TV). We partner with our clients to design, develop, and deploy applications that transform user experiences.In just 10 years, Theodo Apps has grown from 2 to 120 employees and reached a turnover of €24 million in 2024!We collaborate with a diverse range of clients, including entrepreneurs, innovative SMEs, and large corporations like TF1+, Carrefour, Urgo, and Compagnies des Alpes.Your Team:The technical team at Theodo Apps consists of 49 software engineers, tech leads, architects, and engineering managers, all hailing from top engineering schools.You will be part of a dynamic team of 2 to 5 engineers, supported by a tech lead, an associate product manager, and a UX/UI designer.Your Future Responsibilities:As an Android Mobile Developer, you will play a pivotal role in developing our Android applications, ensuring exceptional performance and an optimal user experience. Your daily responsibilities will include:- Contributing to the design and architecture of robust, scalable, and maintainable Android applications, utilizing recognized paradigms such as MVVM, MVI, or Clean Architecture.- Developing native Android features in Kotlin, with a constant focus on performance, accessibility, and user satisfaction.

Join our dynamic team of 9 mobile software engineers, led by an Engineering Manager and supported by a Project Manager, as we develop a cutting-edge mobile solution that encompasses two native applications. Our tech stack includes Kotlin Multiplatform, Jetpack Compose, and SwiftUI, complemented by a robust CI setup using Bitrise, along with custom apps and internal developer tools.We are seeking a Junior Android Developer with 0.5 to 2 years of experience who is eager to learn the Kotlin Multiplatform tech stack in the short term and expand into iOS development in the mid- to long-term.As part of our R&D department, which boasts over 80 engineers, our mobile team plays a vital role in enhancing 360learning’s offerings to meet the growing demands of our users for an engaging mobile learning experience. You will have the opportunity to:- Confront real and intricate technical challenges: Work with a complex codebase that requires analytical and modeling skills. Join a platform with a significant user base (2.3 million registered users) and a strong emphasis on code quality, utilizing modular and layered clean architecture, systematic code peer reviews, and automated testing on each pull request.- Engage with an attractive technical stack: Our mobile team has been committed to Kotlin Multiplatform since its inception in 2020, with 80% of the codebase already migrated. This is supplemented by Kotlin/Jetpack Compose on Android and Swift/SwiftUI on iOS.- Thrive within a progressive R&D team: Our decentralized peer review process ensures you receive high-quality and regular feedback from fellow team members. Collaborate with a team of highly skilled engineers who promote pair programming and knowledge sharing.

Join our innovative team at iliad-free as a Lead Android Developer! We are seeking a highly skilled and motivated individual to lead the development of cutting-edge Android applications. In this role, you will collaborate with cross-functional teams, mentor junior developers, and drive the technical direction of our mobile projects.

nexton seeks an Android Kotlin Developer to join a team working on mobile applications for the Telco Media Transport sector. The group is dedicated to delivering new features and ensuring a high-quality experience for users. Responsibilities Build and maintain Android apps using Kotlin Work closely with colleagues to deliver stable, well-tested features Suggest and implement improvements for app performance and usability Location This role is based in Paris.

We are seeking a talented and motivated Android Developer (H/F) to join our dynamic team at myjobcompany1. As an Android Developer, you will play a crucial role in designing and developing innovative mobile applications that enhance user experience. You will collaborate with cross-functional teams to define, design, and ship new features, ensuring high performance and responsiveness of applications.Your expertise will help to shape the mobile landscape of our company, making a direct impact on our products and user satisfaction.

Join Veepee as an Android Developer in our Core Team, where you'll work within a dynamic and agile group of 8-10 engineers. Your role will involve enhancing the quality of our Android application, developing tools for fellow developers, and focusing on security, performance, and stability. You'll also have the opportunity to engage with the Android community and contribute to innovative solutions that elevate our platform.

About VoodooFounded in 2013, Voodoo is a dynamic technology company dedicated to creating engaging mobile games and applications aimed at entertaining users worldwide. With a talented team of 800 professionals, we have achieved over 7 billion downloads and maintain a robust community of more than 200 million active users. Voodoo proudly ranks as the third-largest mobile publisher globally, following industry giants Google and Meta. Our acclaimed portfolio features hit games like Mob Control and Block Jam, along with popular applications such as BeReal and Wizz.Our TeamAt BeReal, we are passionate about fostering authenticity in social media. By encouraging users to share their unfiltered moments, we aim to build genuine connections and celebrate real-life experiences. Our international team has grown to over 60 members, and we proudly support a community of over 30 million monthly active users. With Voodoo's backing, we are committed to scaling BeReal into a leading social network embraced by hundreds of millions.Your RoleWe are in search of a skilled Senior iOS Engineer to enhance our team's efforts in creating an exceptional iOS app experience for millions of users. This role will involve:Designing, implementing, and maintaining scalable iOS features within a fast-paced, high-impact environment.Collaborating with cross-functional teams, including designers, product managers, and data analysts, to develop and refine innovative features.Analyzing user feedback and needs to drive feature development and iterations.Ensuring a seamless, high-quality user experience through thoughtful and effective technical solutions.Evaluating the technical, user, and business impact of the features you develop and deploy.Contributing to and upholding best practices in code quality, design, and development processes.Continuously innovating and improving our iOS tech stack, which includes Swift and SwiftUI.You will also have the opportunity to work alongside AI tools that enhance your creativity and streamline your daily tasks.Our Tech StackiOS: Swift, Combine, SwiftUI, SPM, Swift Concurrency, MVVMOps: GitHubAndroid: Kotlin, Compose, Coroutines, Room, gRPCBackend: Go, Node.js (NestJS, Nx, Typescript)Database: Spanner, PostgreSQL, RedisInfrastructure: GCP, GKE, FirebaseData: Amplitude, Tableau

Join Our Dynamic TeamAs a Senior Android Developer at Free2Move, you will be an integral member of a vibrant technical team of around thirty professionals, working in a warm and enjoyable atmosphere. You have the freedom to choose your preferred workspace and work style, allowing you to maximize your productivity and creativity!

Join our dynamic team at amo as a pivotal member of our Android engineering group. As one of the early hires in a product-centric company, you will play a crucial role in shaping our design and product decisions from the ground up.Initially, you will collaborate closely with our founding team, gradually taking ownership of key components and features. We are looking for adaptable engineers who are eager to contribute to various foundational aspects of the company as we grow.We are committed to developing a team of subject matter experts, and we value team members who dive deep into their fields of expertise.As an Android Engineer, your day-to-day responsibilities will include:Feature DevelopmentYou will be at the forefront of delivering innovative and high-quality UI features in a fast-paced setting. We encourage you to push the limits of what's possible, leveraging your expertise in low-level APIs, shader creation for dynamic effects, and custom rendering systems.Platform DevelopmentYou will actively contribute to the creation and enhancement of our platform. This involves developing careful abstractions utilized by other Android team members, such as media encoding, decoding and playback; performance tracing libraries; and our own components for navigation and deep links across applications. Your work will extend beyond individual features to encompass cross-company components.Roadmap Creation and IdeationYou will play a vital role in the roadmap creation and ideation process, where your experience will be crucial in identifying trade-offs and offering valuable insights from both product and engineering standpoints.Knowledge SharingWe emphasize continuous learning and knowledge exchange. Your involvement in staying current with the latest trends and best practices, attending conferences, engaging in online communities, and sharing your insights internally will significantly contribute to our collective growth.Owning Your ScopeYou will be responsible for monitoring analytics and managing system crashes. We value engineers who take ownership of their responsibilities, proactively addressing issues and triaging bug fixes.

Join our vibrant and passionate team as a Lead iOS Engineer, where your expertise will directly enhance our iOS application. As a key member of a fully agile product team comprising 8-10 engineers, you will focus on elevating the user experience by implementing new features, refining existing functionalities, and developing specialized tools while actively contributing to the iOS community.

Join Voodoo as a Staff iOS EngineerFounded in 2013, Voodoo is a leading tech firm dedicated to developing engaging mobile games and applications that entertain millions globally. With a workforce of 800, over 7 billion downloads, and approximately 200 million active users, Voodoo stands as the third-largest mobile publisher worldwide, trailing only Google and Meta. Our portfolio features hit games like Mob Control and Block Jam, as well as widely-used applications such as BeReal and Wizz.At BeReal, we champion authenticity in social media by encouraging users to share genuine moments, fostering real connections and celebrating everyday life. Our international team, exceeding 100 members, boasts over 40 million active users monthly. Backed by Voodoo, we are committed to scaling BeReal into a globally recognized social network.Your RoleWe are seeking a highly skilled Staff iOS Engineer to help shape the future of our iOS platform that millions rely on daily. You will establish our technical direction, lead significant initiatives, and ensure the delivery of exceptional user experiences while remaining actively involved in development.Your responsibilities will include:Setting the technical strategy for the iOS platform, ensuring scalability, performance, reliability, and maintainability over the long term.Designing and implementing impactful iOS features and systems, balancing immediate product demands with long-term platform health.Leading cross-functional projects with product, design, data, backend, and Android teams.Promoting engineering best practices within the iOS team, focusing on code quality, testing, and development methodologies.Mentoring junior iOS engineers and facilitating technical leadership and knowledge sharing.Evaluating the technical, user, and business impact of the features you develop, using data and user feedback to guide decisions.Continuously enhancing the iOS tech stack and tooling, including Swift, SwiftUI, and Swift Concurrency.Collaborating with AI-powered tools to boost productivity and creativity.Our Tech StackiOS: Swift, Combine, SwiftUI, SPM, Swift Concurrency, MVVMOperations: GitHubAndroid: Kotlin, Compose, Coroutines, Room, gRPC

Join Meetic, a leading company within Match Group, as we continue to revolutionize online dating, connecting people for over 20 years. Our mission is to create and enhance meaningful relationships across Europe and beyond, using our extensive experience to innovate.As part of our diverse portfolio, which includes renowned brands such as Match, Lexa, and LoveScout24, we also cater to niche markets with platforms like OurTime and DisonsDemain. We are committed to ensuring that singles of all ages and backgrounds find their perfect match.Our dynamic teams operate in over 20 countries and support 18 languages, focusing on user experience and satisfaction. We are proud to contribute to the growth of other Match Group brands like The League and OkCupid, enhancing our global influence.While the initial connection occurs online, we believe that the true magic unfolds in face-to-face meetings. Therefore, we encourage collaboration in person three days a week at our Paris office.Role OverviewAs a Senior iOS Developer, you will operate with substantial autonomy while being part of a collaborative engineering community. Your primary focus will be on developing innovative features and enhancing user experiences, maintaining high standards of quality while refining our existing codebase.

Join Voodoo as a talented iOS Product Engineer and contribute to the innovative BeReal app, a unique social media platform that encourages authenticity and genuine connections. You will work alongside a passionate team of engineers, designers, and product managers to enhance user experience and drive technical excellence.

Join Our Innovative TeamAt SumUp, we believe in empowering businesses to thrive through our comprehensive Point-of-Sale (POS) solution. Our platform is designed for cafes, shops, bars, hair salons, and various other enterprises, enabling them to operate efficiently and achieve growth. With features like product catalogs, inventory management, business analytics, compliance support, and loyalty tools, we are transforming how businesses manage their operations.Our POS solution is seamlessly integrated into the SumUp SuperApp, which supports both proprietary register hardware and mobile devices, including tablets and smartphones.As a Senior Android Developer, you will work alongside a vibrant cross-functional team comprising Product Managers, Designers, Engineering Managers, and fellow engineers.Your RoleAs we transition towards a Kotlin Multiplatform (KMP) strategy, you'll play a crucial role in developing shared solutions for both Android and iOS platforms. This position offers you the opportunity to learn, refine, and implement cutting-edge technology, shaping the future of our mobile applications.We are looking for a developer who prioritizes user-centric design, values precision, and thrives in a collaborative environment. Your structured communication style will be an asset in our cross-functional team.Key ResponsibilitiesDevelop new features for the item catalog within the SumUp SuperApp.Enhance the application's architecture and contribute to our Kotlin Multiplatform strategy.Maintain and improve our unified Android app distributed across over 60 countries, ensuring high-quality, scalable solutions.Identify opportunities for product enhancement and participate in daily decision-making.Create comprehensive documentation and implement rigorous testing for features prior to release.Collaborate with Designers, Product Managers, and Android engineers to provide a cohesive user experience across platforms.Qualifications for Success5+ years of experience in mobile engineering with a focus on Android and Kotlin.2+ years of experience with Jetpack Compose.A solid understanding of software design patterns (e.g., MVVM, MVI) and expertise in creating modular, scalable app architectures.Strong knowledge of reactive programming (Flow, Coroutines, and Concurrency).A thorough grasp of testing best practices: knowing what to test, why, and how to write resilient tests.

About VoodooEstablished in 2013, Voodoo is a leading tech company dedicated to developing mobile games and applications that aim to entertain users globally. With a workforce of 800 talented individuals, we have achieved 7 billion downloads and have over 200 million active users, positioning Voodoo as the third-largest mobile publisher in the world, following Google and Meta. Our impressive portfolio features hit games such as Mob Control and Block Jam, in addition to popular apps like BeReal and Wizz.TeamAt BeReal, we prioritize authenticity in the social media landscape. We motivate users to share genuine moments, fostering authentic connections and appreciating real-life experiences. Currently, our international team comprises over 100 members and serves more than 40 million monthly active users. Supported by Voodoo, we are committed to transforming BeReal into a landmark social network embraced by hundreds of millions.RoleWe are in search of a Tech Lead iOS Engineer to spearhead the technical vision, architecture, and execution of our iOS application, engaging millions of users worldwide. In this pivotal role, you will significantly influence the product’s direction, mentor fellow engineers, and uphold excellence in delivery and engineering practices.Your key responsibilities will include:Leading the iOS technical strategy and architecture to ensure scalability, performance, and maintainability.Overseeing the end-to-end delivery of complex features with a keen focus on quality and impact.Mentoring iOS engineers to cultivate a culture of ownership and technical excellence.Collaborating cross-functionally to synchronize technical decisions with product and business objectives.Maintaining code quality and engineering standards, continuously enhancing best practices and processes.Making high-impact technical decisions, balancing speed, quality, and long-term sustainability.Utilizing data and user feedback to drive product and technical enhancements.Pioneering innovation within the iOS stack (Swift, SwiftUI) and embracing modern tools, including AI-assisted development.Ensuring reliability and performance at scale, with a strong emphasis on user experience.In this role, you will leverage AI tools to enhance your creativity and streamline your daily tasks.

Join Our Dynamic Team!At Free2Move, we invite you to become part of our spirited technical team of around thirty professionals in a warm and enjoyable work atmosphere. You have the freedom to select the workspace that suits you best: it’s entirely up to you how you prefer to work!

Join our dynamic team as a Senior iOS Engineer and bring your expertise to an application that positively impacts millions of users globally. This is an exciting opportunity to contribute to a rapidly expanding product consistently ranked among the Top 10 most downloaded Health and Fitness apps. At Fabulous, you will collaborate with a talented team of iOS Developers, a visionary CTO, an award-winning designer, and a dedicated group of researchers within a leading behavioral economics center.If you are passionate about iOS app development and eager to drive technological advancements while helping individuals cultivate healthier habits, we invite you to become part of the Fabulous mobile team.Key Responsibilities Utilize your technical expertise throughout all phases of feature development. Produce high-quality, modular, and testable code that includes business logic shared with the Android application via the J2Objc tool. Participate in the preparation of essential project documentation. Design user interfaces based on mock-ups from our UI/UX designers, incorporating engaging animations. Contribute to the enhancement of our processes and standards. Qualifications A minimum of 5 years of programming experience in either Objective-C or Swift. Proven experience in developing, releasing, and maintaining native iOS applications. Familiarity with Java or a strong willingness to learn. Ability to work collaboratively within a team environment; open to giving and receiving constructive feedback. Experience in designing clean and maintainable APIs. Proficiency in multithreaded programming. Experience in writing unit tests and ensuring code is testable. Preferred Qualifications Experience as the author of live production app(s) available in the App Store. Knowledge of SwiftUI and modern Swift API design and concurrency patterns (Combine, async await, Actors, etc.). Hands-on experience with Java and Android applications. Experience using the Google Firebase tool. BenefitsJoin a company that not only values your contributions but also offers a supportive work environment focused on your well-being and professional development.About UsWe are an award-winning health, wellness, and coaching company that develops apps recognized globally as top-tier. Our science-based approach is dedicated to the tech-for-good initiative, empowering individuals to lead fulfilling lives. Every team member at Fabulous is devoted to leveraging evidence-based research to discover optimal strategies for meaningful life changes.