React Mobile Developer (She/He/They)

CAPCO POLAND

*We are looking for Poland based candidates*

Capco Poland is a leading global technology and management consultancy, dedicated to driving digital transformation across the financial services industry. Our passion lies in helping our clients navigate the complexities of the financial world, and our expertise spans banking and payments, capital markets, wealth, and asset management. We pride ourselves on maintaining a nimble, agile, and entrepreneurial culture, and we are committed to growing our business by hiring top talent.

For one of our clients, we are looking for an experienced Senior React Native Developer to join a strategic greenfield initiative focused on building a brand-new mobile application from the ground up using Expo.

Key Responsibilities

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  Design and develop a cross-platform mobile application using React Native and Expo.

  
  


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  Implement multi-screen navigation flows using React Navigation.

  
  


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  Translate the client’s design system into a scalable, reusable component library (tokens → primitives → complex components).

  
  


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  Build high-quality UI screens based on Figma designs and the newly created components.

  
  


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  Implement complex input forms with strong validation and smooth user experience.

  
  


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  Propose, justify, and implement the optimal technical stack and architectural approach.

  
  


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  Write and maintain automated tests using Jest and React Native Testing Library.

  
  


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  Integrate and manage push notifications, including permissions, routing, and background behavior.

  
  


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  Consume REST APIs using clean, maintainable data-access patterns.

  
  


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  Support deployment to the Apple App Store and Google Play Store (EAS or store workflows).

  
  


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  Implement monitoring, crash reporting, and performance tracking solutions.

  
  


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  Develop and integrate native modules where required.

  
  


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  Ensure long-term performance, maintainability, and scalability of the application.

  
  

Required Skills & Experience

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  Strong hands-on experience with React Native and Expo.

  
  


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  Advanced knowledge of TypeScript.

  
  


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  Proven expertise in React Navigation and multi-screen architectures.

  
  


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  Experience converting design systems into high-quality, scalable component libraries.

  
  


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  Strong testing experience with Jest and React Native Testing Library.

  
  


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  Hands-on experience with push notifications (Expo Notifications or custom native solutions).

  
  


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  Solid experience working with REST APIs, including authentication, error handling, and caching strategies.

  
  


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  Experience publishing mobile applications to both iOS and Android app stores.

  
  


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  Ability to write native code when required (Swift, Objective-C, Kotlin, Java).

  
  


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  Strong ability to work from Figma and deliver pixel-perfect UI components.

  
  


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  Excellent architectural skills with the ability to clearly justify technical decisions.

  
  

We offer a flexible collaboration model based on a B2B contract, with the opportunity to work on diverse projects