React Native Developer

NN Insurance Belgium; Sint-Gillis; Hybride; EUR 65 000 - 90 000; Plein temps

Avantages offerts par ce poste

Group insurance

Meal vouchers

Eco-vouchers

Résumé du poste

NN Insurance Belgium is seeking an experienced React Native Developer to join our Multichannel scrum teams in Brussels. You will blend hands-on mobile development with technical leadership, shaping secure, maintainable solutions for our digital channels and advising the Domain IT Lead and stakeholders.

You will design and build cross‑platform mobile apps, lead architecture decisions, and collaborate with backend, frontend, testers, and platform engineers to deliver robust solutions.

Qualifications

• Minimum 5 years in mobile app development with React Native
• Strong knowledge of React Native, JavaScript and TypeScript
• Experience with iOS/Android lifecycles and macOS development
• Familiarity with API integration and security considerations

Responsabilités

• Design, develop, test, and maintain cross‑platform mobile apps using React Native and TypeScript
• Provide technical leadership on mobile architecture and reusable components
• Assess requirements and propose sustainable, secure solutions balancing value, speed and maintainability
• Collaborate with backend developers on REST APIs, auth, error handling and performance
• Work with Web Components and ensure consistent UI patterns across mobile and web
• Contribute to GitLab CI/CD pipelines for automated builds, tests and deployments
• Support mobile release management for iOS and Android in macOS environments

Connaissances

React Native

JavaScript

TypeScript

Mobile architecture

REST API integration

CI/CD

macOS development

Testing/Quality

Team leadership

Formation

Bachelor's degree in IT/Computer Science or equivalent

Outils

GitLab CI/CD

macOS development environment

Description du poste

What does your job as a React Native Developer look like? As a React Native Developer, you will join one of the scrum teams in the Multichannel domain. The domain designs, builds and runs digital application chains, including API integration, APIs, web applications and mobile solutions. You will take a leading role in mobile development and help shape robust, secure and maintainable solutions for our digital channels. You will combine hands-on development with technical leadership. You will advise colleagues and the Domain IT Lead, translate business needs into pragmatic technical choices, and work closely with stakeholders, analysts, designers, backend developers, testers and platform engineers.

Your key responsibilities

• Design, develop, test and maintain high-quality cross-platform mobile applications using React Native and TypeScript
• Provide technical leadership on mobile architecture, application structure, reusable components, integration patterns and engineering standards
• Assess requirements, identify technical risks and propose sustainable solutions that balance user value, delivery speed, security and maintainability
• Collaborate with backend developers on REST API contracts, authentication, error handling, performance and end-to-end troubleshooting
• Work with Web Components and contribute to consistent, reusable user-interface patterns across mobile and web channels
• Build and improve GitLab CI/CD pipelines for automated build, test, quality validation and deployment processes
• Support mobile release management for iOS and Android, including development and build activities in a macOS environment

This is how you fit perfectly into our team

• At least 5 years of professional experience in mobile application development, including substantial hands-on experience with React Native
• Strong knowledge of React Native, JavaScript and TypeScript, including component design, state management, navigation, performance optimization and native integrations
• Practical experience with iOS and Android development lifecycles and confidence working in a macOS development environment
• Experience with Web Components and a good understanding of modern frontend architecture
• Strong experience integrating REST APIs and sufficient backend understanding to anticipate and discuss API, security, data and performance challenges
• A strong DevOps mindset, with a focus on automation, reliable delivery, maintainability and efficient operations
• Experience with automated testing, code quality practices, debugging, monitoring and secure software development
• A bachelor degree in IT, computer science or a related field, or equivalent professional experience
• Good command of spoken and written English, combined with good French or Dutch
• Nice to have Experience with native iOS technologies such as Swift or Objective-C, or native Android technologies such as Kotlin or Java
• Experience publishing and maintaining applications through Apple App Store and Google Play processes
• Knowledge of accessibility, mobile analytics, secure storage, push notifications, deep linking or offline-first design
• Knowledge of cloud platforms and supporting services, particularly Microsoft Azure

Who are we looking for?

NN is looking for people who give their best, come up with fresh ideas and are willing to take the initiative. People who can live by our values: care, clear and commit. We believe in an open and inclusive culture, where everyone feels welcome, valued and respected. So be yourself above all!

What you get with NN

Your attractive salary package is supplemented by some attractive fringe benefits such as: group and hospitalization insurance meal and eco-vouchers 20 holiday days and 12 days recovery time

• To discover your talents, develop them further and build on your career, you will receive: a diverse range of training courses
• a comprehensive onboarding workshops, coaching & well-being services opportunities for internal mobility

At NN, we know how important it is to have a good work-life balance. That’s why we offer a flexible home working policy. To give your creativity an extra boost, you can, of course, always visit our new working environment in the bustling Brussels, easily accessible by public transport.

NN Netherlands is the head office of NN Group, a financial services group with over 180 years of history, helping people care for what matters most to them. We are committed to the financial, physical and mental well-being of our colleagues and customers – through our products, services, and meaningful advice.

Benefits of working for NN Group Netherlands Continuous development – Your career progression matters. We support you with a wide range of learning opportunities and a generous training budget to help you reach your full potential. Meaningful impact – At NN, we invest our time and expertise in making a meaningful difference – for people and the planet. Purpose-driven work is part of our DNA. Work-life balance – Vitality is key. Our diverse health and well-being offerings help you stay energised and balanced, both at work and beyond.

Diversity & Inclusion Our approach to diversity and inclusion is simple. It is about embracing everyone. Our networks play a crucial role in achieving our D&I goals. They aim for meaningful change and create many opportunities to engage, connect and support colleagues. Everyone at NN can take an active part in multiple networks including NN Pride, NN Cultural Diversity Network, NN Young Professionals, Woman in Leadership Network and NN Neurodiversity network.

Top Employer We are proud to be certified as a Top Employer for the 15th year in a row in 2026. The Top Employers Institute certificate recognizes organizations that consciously choose to put their employees first.