App Developer

KAUZA and Kantars Worldpanel team (the folks who analyze what people buy) are hiring an App Developer based in Copenhagen Denmark.

The Goal:

Theyre building a new platform to give their clients much better and faster insights into consumer shopping habits. Your main job will be to help get this platform launched and then make it work globally.

Role Overview: We are looking for a talented React Native Developer to join our team. You will work closely with pentesters and tools engineers to ensure the app is both secure and insightful while also driving long-term user engagement.

Key Responsibilities:

• Develop and maintain features such as personalized insights and visualizations of spending habits.
• Implement secure and smooth login/onboarding experiences.
• Create gamification and streak tracking features.
• Develop smart product suggestions and reminders.
• Build budgeting tools and progress dashboards.
• Implement push notifications and local alerts.
• Create lightweight social and sharing features.
• Develop in-store quick-log and barcode scanning tools.
  

What Were Looking For:

• Full Professional English Proficiency (C1 Level minimum required).
• Strong experience in React Native and the Expo ecosystem (iOS & Android).
• Familiarity with authentication flows (OAuth biometrics token storage).
• Experience building data-driven UIs and interactive dashboards.
• Comfort with state management (e.g. Redux Zustand Jotai).
• Good grasp of TypeScript and component architecture.
• Experience with local storage solutions (e.g. MMKV SQLite or Firestore).
• Familiarity with analytics retention metrics and push notification systems.
• Ability to collaborate effectively with backend security and UX teammates.
• Bonus: Experience with mobile security barcode scanning (e.g. ML Kit or react-native-camera) or gamification mechanics.
  

What youll get from us

• 30 days annual leave
• Hybrid & Flexible work schedule
• Private Medical Insurance.
• Flexible benefits across health wealth and lifestyle.
  

About us

Kauza ApS is a consulting company based in Copenhagen that provides fact-based advisory and shopper insights to players in the FMCG industry in the Nordic market. Kauzas services are delivered in innovative dashboard solutions powered by cloud technology and machine learning ensuring that they meet the clients key business questions with the right mix of data accessibility and data usability making it possible to deliver shopper behavior and purchase data in rear real time.

Kantar is the worlds leading data insights and consulting company. We understand more about how people think feel shop share vote and view than anyone else. Combining our expertise in human understanding with advanced technologies. Kantars 25000 people based in more than 100 countries help the worlds leading organisations succeed and grow. Nobody knows people better than Kantar. We provide insight and inspiration to help our clients our people and society to create and flourish in an extraordinary world.

We have an integrated way of rewarding our people based around a simple clear and consistent set of principles. Our approach helps to ensure we are market competitive and also to support a pay for performance culture where your reward and career progression opportunities are linked to what you deliver.

We go beyond the obvious using intelligence passion and creativity to encourage new thinking and shape the world we live in. Apply for a career thats out of the ordinary and join us.

We want to build an equality of opportunity in a fair and encouraging working environment where people feel included accepted and are allowed to flourish in a space where their mental health and well-being is taken into consideration.

We want to build a more diverse community to expand our talent pool be locally representative drive diversity of thinking and better commercial outcomes.

Privacy and Legal Statement

PRIVACY DISCLOSURE: Please note that by applying to this opportunity you consent to the personal data you provide to us to be processed and retained by The Kantar Group Limited (Kantar). Your details will be kept on our Internal ATS (Applicant Tracking System) for as long as is necessary for the purposes of recruitment which may include your details being shared with the hiring manager(s) and for consideration for potential future opportunities by Kantar and its affiliate Kantar group companies. For full details of our privacy policy please visit .

We will ensure that individuals with disabilities are provided reasonable accommodation to participate in the job application or interview process to perform essential job functions and to receive other benefits and privileges of employment. Please contact us to request accommodation.

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