Mobile App Developer (iOS/Android)

SN Horizon; Paris; Sur place; EUR 60 000 - 90 000; Plein temps

Résumé du poste

SN Horizon is seeking a mobile developer to build and optimize iOS and Android apps using React Native, Flutter, Swift, or Kotlin. You will architect scalable solutions, integrate APIs and cloud services, and collaborate with designers to deliver pixel-perfect, accessible experiences.

Working with backend teams, you will ensure real-time data flow, robust security, and performance. You will stay current with mobile trends, contribute to documentation, and mentor junior developers.

Qualifications

• Experience with Swift, Kotlin, Flutter, or React Native is required.
• Strong knowledge of RESTful APIs and third-party integrations.

Responsabilités

• Develop and optimize iOS and Android applications across devices using React Native, Flutter, Swift, or Kotlin.
• Architect scalable mobile solutions with APIs, cloud services, and libraries to enhance functionality.
• Collaborate with UI/UX designers to translate prototypes into interactive, accessible mobile experiences.

Connaissances

Swift

Kotlin

Flutter

React Native

REST APIs

Outils

Firebase Performance Monitoring

Appium

Xcode Instruments

Android Profiler

Description du poste

• Develop and optimize iOS and Android applications, leveraging frameworks such as React Native, Flutter, Swift (iOS), or Kotlin (Android) to ensure seamless performance across devices.
• Architect and implement scalable mobile solutions, integrating APIs, cloud services, and third-party libraries to enhance app functionality and user experience.
• Collaborate with UI/UX designers to translate wireframes and prototypes into pixel-perfect, interactive mobile experiences while ensuring accessibility and usability best practices.
• Work closely with backend developers to optimize data flow between mobile applications and server-side infrastructure, ensuring real-time synchronization and low-latency interactions.
• Ensure app security, performance, and reliability by implementing secure coding practices, encryption, authentication protocols, and compliance with platform security guidelines (e.g., App Store, Google Play).
• Conduct rigorous testing, debugging, and performance tuning, using tools like Firebase Performance Monitoring, Appium, Xcode Instruments, or Android Profiler to detect and resolve bottlenecks.
• Stay ahead of mobile development trends and best practices, continuously evaluating new technologies, SDKs, and platform updates to enhance the app ecosystem.
• Monitor user feedback and analytics to drive continuous improvements for data-driven enhancements.
• Contribute to technical documentation and knowledge sharing, mentoring junior developers and fostering a collaborative, innovation-driven mobile development culture.

Responsibilities

• Develop and optimize iOS and Android applications, leveraging frameworks such as React Native, Flutter, Swift (iOS), or Kotlin (Android) to ensure seamless performance across devices.
• Architect and implement scalable mobile solutions, integrating APIs, cloud services, and third-party libraries to enhance app functionality and user experience.
• Collaborate with UI/UX designers to translate wireframes and prototypes into pixel-perfect, interactive mobile experiences while ensuring accessibility and usability best practices.
• Work closely with backend developers to optimize data flow between mobile applications and server-side infrastructure, ensuring real-time synchronization and low-latency interactions.
• Ensure app security, performance, and reliability by implementing secure coding practices, encryption, authentication protocols, and compliance with platform security guidelines (e.g., App Store, Google Play).
• Conduct rigorous testing, debugging, and performance tuning, using tools like Firebase Performance Monitoring, Appium, Xcode Instruments, or Android Profiler to detect and resolve bottlenecks.
• Stay ahead of mobile development trends and best practices, continuously evaluating new technologies, SDKs, and platform updates to enhance the app ecosystem.
• Monitor user feedback and analytics to drive continuous improvements for data-driven enhancements.
• Contribute to technical documentation and knowledge sharing, mentoring junior developers and fostering a collaborative, innovation-driven mobile development culture.

Requirements

• Experience with Swift, Kotlin, Flutter, or React Native.
• Strong knowledge of RESTful APIs and third-party integrations.