React Native - PC - Worldline

The Opportunity
Within SMB (Small & Merchant Business) business line, the Launchpad initiative aims to simplify merchants' access to Worldline's solutions and products. This includes centralized access to the solutions catalog, a simple and fast onboarding, and a Web and Mobile platform for day-to-day operations (sales inquiries, etc.). In this context, we are looking for React Native mobile developers to join the various functional squads and develop the content of the mobile application that will be provided to merchants.
Day-to-Day Responsibilities • Demonstrate a strong passion for exploring and adopting new technologies that can enhance project outcomes. • Responsible for writing clean, secure code, ideally following a test-driven approach • Code that others can reuse. • Strong collaboration with other developers to foster excellence and knowledge sharing • Apply technical knowledge and experience to create or design workable prototypes and outputs • Translate user stories and propose design approaches or services to meet user needs and engage in meaningful interactions and relationships with users when required. • Apply appropriate design standards, methods and tools and ensure they are applied effectively. • Collaborative, keen to share knowledge and learn continually • Approach challenges with innovative thinking, exploring outside-the-box solutions • Maintain comprehensive documentation for all aspects of software development to aid in ongoing maintenance and future revisions. • You collaborate with other IT specialists, design and product teams, technicians in a full Agile mode • You participate in on-going training to stay current in required skills. Key technical competencies
• Proficiency in React and the component lifecycle • Proven mobile cross-platform development experience (iOS/Android) with React Native and Expo framework • Knowledge of React hooks (useState, useEffect, useMemo, useCallback, etc.) • Strong command of JavaScript (ES6+), and knowledge of TypeScript • Mobile navigation management with ExpoRouter • Integration and consumption of RESTful APIs (Zod / Axios) • Experience with native development tools (Xcode, Android Studio) and bridging if necessary • Application state management • Performance optimization and memory management in mobile apps • Testing and code quality (Unit tests, Jest, Testing Library) • Debugging and problem-solving (profiling, logging, crash reporting) • Awareness and application of mobile security and data handling best practices • Familiarity with CI/CD tools and deployment processes (Fastlane, CI pipelines) • Working with Git/GitLab repositories
Who Are We Looking For
We look for big thinkers. People who can drive positive change, step up and show what’s next – people with passion, can-do attitude and a hunger to learn and grow. In practice this means: • You have at least 8 years experience in mobile app development in ReactNative • You have a degree in software engineering, computer science or similar field • You have great analytical and problem-solving skills • You are organized and skilled in time-management • You are very accurate and demonstrate high attention to detail • You have sophisticated interpersonal and communication skills • You are fluent in English, oral and written