Senior Mobile Application Engineer; React Native

Company Description

Cint is a pioneer in research technology (Res Tech). Our customers use the Cint platform to post questions and get answers from real people to build business strategies, confidently publish research, accurately measure the impact of digital advertising, and more. The Cint platform is built on a programmatic marketplace, which is the world's largest, with nearly 300 million respondents in over 150 countries who consent to sharing their opinions, motivations, and behaviours.

We are feeding the world's curiosity!

We're looking for an experienced and passionate Senior Mobile Application Engineer to join our team. You will be responsible for the full lifecycle development of our next-generation, customer-facing mobile applications for iOS and Android
, built primarily with React Native
.

You will be instrumental in delivering a fast, beautiful, and stable cross-platform experience by using modern development practices and the latest features of the React Native ecosystem.

• Design and Development: Lead the development of high-quality, high-performance customer-facing mobile applications for iOS and Android using React Native, Type Script, and related frameworks (e.g., Redux Toolkit, React Navigation).
• End-to-End Ownership: Take ownership of features from concept and technical design through implementation, testing, and deployment to the respective app stores.
• Cross-Functional Collaboration: Work closely with Product Managers, UX/UI Designers, and Backend Engineers to define scope, refine requirements, and integrate necessary APIs to create a seamless user experience.
• Platform Expertise: Leverage a deep understanding of the mobile application lifecycle and platform-specific requirements to ensure near-native performance and adherence to App Store and Google Play Store guidelines. This includes working with native modules when necessary.
• Quality and Performance: Implement robust unit, integration, and UI tests (e.g., with Jest, Enzyme, Detox) and proactively monitor, debug, and optimize application performance, focusing on metrics like startup time and crash-free sessions.
• Dev Ops and Delivery: Manage the continuous integration and continuous deployment (CI/CD) pipelines, including build processes, code signing, and the entire store submission process (e.g., using Fastlane, EAS, or similar tools).
• Modern Practices: Champion the adoption of modern React Native architecture (e.g., Fabric and Turbo Modules), superior state management, and best practices like modular architecture and component-driven development.

• Education: A Bachelor's degree in Computer Science, Software Engineering, or a related technical field, or equivalent practical experience.
• Mobile Development Track Record: Proven, significant experience in professional mobile application development, including both native (Swift/Kotlin/Java) and non-native frameworks, with a strong emphasis on React Native.
• App Store Delivery
  
  Experience:
  
  Hands-on experience managing and executing the entire mobile application development lifecycle, including successful deployment, maintenance, and updates through the Apple App Store and Google Play Store. A portfolio of released applications is a strong plus.

• Deep proficiency in React Native and the JavaScript ecosystem, including modern features of ES6+ and a strong preference for Type Script.
• Expertise with mobile state management libraries (e.g., Redux, MobX, Zustand).
• Experience with testing frameworks (Jest, React Testing Library, or similar).
• Strong understanding of version control systems, especially Git.
• Familiarity with modern mobile architecture patterns (e.g., MVC, MVVM) and best practices for performance optimization and memory management.

• Experience with modern native development (Swift/iOS, Kotlin/Android) for building custom bridges or optimizing performance-critical modules.
• Knowledge of cloud services (e.g., AWS, Firebase) for backend integration.
• Familiarity with accessibility best practices for mobile applications.
• Experience with A/B testing implementation and mobile analytics tools.
• Working knowledge of Agile/Scrum development methodologies.

• We uncover rich perspectives across the world
• Success happens together
• We deliver across borders.

• We're pioneers in our industry
• Our curiosity is insatiable
• We bring the best ideas to life.

• We're accountable for our work and actions
• Excellence comes as standard
• We're open, honest and kind, always.

• We learn from each other's experiences
• Stop and listen; every opinion matters
• We embrace diversity, equity and inclusion.

We're proud to be recognised in Newsweek's 2025 Global Top 100 Most Loved Workplaces®, reflecting our commitment to a culture of trust, respect, and employee growth.

In June 2021, Cint acquired…