React Native Mobile Developer- Senior Associate L2

Company description Publicis Re:Sources is at the core of Publicis Groupe, the world's largest communications company. We are the only full-service, end-to-end shared service organization in the industry, enabling Groupe agencies to do what they do best: innovate and transform for their clients. Formed in 1998 as a small team to service a few Publicis Groupe firms, Publicis Re:Sources has grown to 6,000+ employees in over 55 countries. We provide technology solutions and business services, including finance, accounting, legal, benefits, procurement, tax, real estate, treasury and risk management, information security, and global mobility — supporting 110,000+ employees across the Publicis Groupe network. Our people are at the center of everything we do, bringing curiosity, collaboration, and a commitment to excellence to their work every day. Learn more about Publicis Re:Sources and the Publicis Groupe agencies we support at publicisresources.com Overview We are seeking a highly skilled and experienced React Native Developer to join our Mobile Application Development team. The ideal candidate will be responsible for designing, developing, deploying, and optimizing high-performance cross-platform mobile applications using React Native and TypeScript. This role requires strong expertise in mobile architecture, frontend engineering, backend integrations, AI/ML-enabled mobile experiences, and application performance optimization. The candidate will also contribute to technical leadership initiatives by mentoring junior developers, driving engineering best practices, and collaborating with cross-functional teams to deliver scalable and innovative mobile solutions. Mobile Application Development • Design, develop, test, deploy, and maintain scalable, secure, and high-performance cross-platform mobile applications using React Native and TypeScript for iOS and Android. • Translate UI/UX wireframes and product requirements into responsive, intuitive, and accessible mobile interfaces. • Develop reusable, modular, and maintainable components aligned with enterprise design systems and coding standards. • Ensure optimal application performance, responsiveness, and compatibility across devices and operating systems. AI/ML Integration & Innovation • Integrate AI/ML capabilities into mobile applications using technologies such as TensorFlow Lite, Core ML, and cloud-based AI services. • Collaborate with data science and AI teams to implement intelligent features including NLP, recommendation engines, image recognition, and chatbot functionality. • Optimize AI/ML models for mobile deployment, focusing on model size reduction, inference speed, and battery efficiency. Code Quality & Testing • Write clean, maintainable, scalable, and well-documented code following industry standards, SOLID principles, and design patterns. • Conduct code reviews and ensure adherence to development best practices and coding standards. • Develop and maintain unit tests, integration tests, and end-to-end tests using frameworks such as Jest, React Native Testing Library, and Detox. • Support and improve CI/CD pipelines to enable efficient testing, deployment, and release management. Backend Integration & APIs • Collaborate with backend teams to integrate mobile applications with RESTful APIs, GraphQL services, and microservices. • Implement secure authentication and authorization mechanisms using OAuth 2.0, JWT, SSL/TLS, and related security protocols. • Develop offline-first functionality and local persistence solutions using SQLite, Realm, or similar technologies. • Manage application state using Redux, Context API, Zustand, or equivalent frameworks. Performance Optimization & Monitoring • Profile and optimize applications for rendering performance, memory utilization, battery consumption, and network efficiency. • Integrate monitoring, analytics, and crash-reporting tools such as Firebase Crashlytics and performance monitoring solutions. • Troubleshoot production issues and implement performance improvements proactively. Technical Leadership & Collaboration • Participate in architecture reviews, technical design discussions, and engineering decision-making processes. • Mentor junior developers through code reviews, technical guidance, and knowledge sharing sessions. • Collaborate closely with product managers, designers, backend engineers, DevOps teams, and business stakeholders. • Participate actively in Agile ceremonies including sprint planning, stand-ups, retrospectives, and demos. DevOps & Deployment • Work with CI/CD tools such as GitHub Actions, Jenkins, or GitLab CI for automated build and deployment processes. • Support application deployment activities for Apple App Store and Google Play Store releases. • Collaborate with DevOps teams on cloud deployment strategies and infrastructure support for backend systems. Compliance & Governance • Ensure compliance with organizational policies, coding standards, security guidelines, and data protection regulations such as GDPR and HIPAA. • Maintain high standards for application security, data privacy, and secure coding practices. Skillset & Qualifications Required Experience • Minimum 3–7 years of relevant experience in React Native mobile application development. • Proven experience building and deploying production-grade cross-platform applications. Technical Skills • Strong expertise in React Native and TypeScript. • Good understanding of native mobile development concepts for iOS (Swift) and Android (Kotlin/Java). • Hands-on experience with state management solutions such as Redux, Context API, or Zustand. • Experience integrating REST APIs and GraphQL services. • Familiarity with mobile testing frameworks including Jest, Detox, and React Native Testing Library. • Strong knowledge of Git workflows and collaborative development practices. • Experience with Agile/Scrum methodologies and sprint-based delivery. • Understanding of CI/CD pipelines and automated deployment processes. • Strong understanding of mobile security best practices, authentication, encryption, and secure API communication. AI/ML Skills • Experience integrating TensorFlow Lite, Core ML, or cloud-based AI services into mobile applications. • Understanding of machine learning concepts and AI-driven mobile experiences. • Experience implementing features such as NLP, recommendation systems, image recognition, and intelligent automation. • Ability to optimize machine learning models for mobile performance. Good to Have • Experience with Expo and CodePush. • Knowledge of React.js or Next.js. • Familiarity with Firebase services. • Understanding of Docker and containerized backend environments. • Exposure to AR/VR technologies or Web3/mobile blockchain integrations. • Backend development experience using Node.js or related technologies. Educational Qualification • bachelor’s degree in computer science, Software Engineering, Information Systems, or a related discipline. • Master’s degree is preferred.