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Senior Front-End Developer (React Native) @ Efigence SA
  • Warsaw
Senior Front-End Developer (React Native) @ Efigence SA
Warszawa, Warsaw, Masovian Voivodeship, Polska
Efigence SA
2. 11. 2025
Informacje o stanowisku

? Location: Remote work + exciting travel opportunities to Riyadh, Saudi Arabia 

We are looking for an experienced Senior Front-End Developer to join our team working on innovative solutions in the digital banking sector. The person in this role will be responsible for creating and developing mobile applications and websites that will be integrated with existing production systems. The technologies used include React and supporting technology Angular. 

✈ International Experience in Riyadh  

  • Join on-site collaboration sessions in Riyadh — an emerging global hub for digital innovation
  • One-week onboarding trip within your first month  
  • Regular design sprints and workshops in Saudi Arabia with client stakeholders
  • All travel and visa arrangements handled by us — flights, hotel, and expenses fully covered
  • Experience Middle Eastern culture and business first-hand while growing your global career
  • Time zone: Some overlap with KSA (UTC+3); Sunday–Thursday workweek on client side

 What Can You Expect From Us:

  • Career & Development – Trainings, workshops, and collaboration with top industry experts
  • Exciting Challenges – Work with leading financial market brands and award-winning projects
  • Supportive Team – Knowledge sharing during Wednesday Wisdom meetings & tech breakfasts
  • Autonomy & Innovation – We welcome your ideas and initiatives
  • Stable Employment - Clear terms on B2B contract
  • Work-Life Balance – Flexible working hours and a culture that values personal time
  • Hybrid or Remote Work Model – It’s up to you
  • Perks & Benefits – Private medical care, Multisport card, English lessons, training budget, and more
  • Trust & Transparency – Open communication and a culture of feedback

Who Are We Looking For:

  • Education: Bachelor’s in Computer Science, Software Engineering, or a related field (Master’s is a plus). 
  • Experience: Senior with Minimum 5+ years of experience in mobile app development with a strong focus on the React Native ecosystem and mobile architecture. 
  • Proven track record of delivering and publishing high-quality apps on App Store and Google Play. 
  • Technical Skills: Strong expertise in React Native, JavaScript/TypeScript, Redux Toolkit (or equivalent), RESTful APIs, native modules, and CI/CD for mobile apps. 
  • Soft Skills: Strong problem-solving abilities, collaboration mindset, effective communication, and adaptability in fast-paced environments. 

Optional:

  • Leadership skills
  • Previous experience working for a bank or proven understanding of banking/financial products and processes
  • Experience in working with clients/financial institutions in the middle-east


? Location: Remote work + exciting travel opportunities to Riyadh, Saudi Arabia 

We are looking for an experienced Senior Front-End Developer to join our team working on innovative solutions in the digital banking sector. The person in this role will be responsible for creating and developing mobile applications and websites that will be integrated with existing production systems. The technologies used include React and supporting technology Angular. 

✈ International Experience in Riyadh  

  • Join on-site collaboration sessions in Riyadh — an emerging global hub for digital innovation
  • One-week onboarding trip within your first month  
  • Regular design sprints and workshops in Saudi Arabia with client stakeholders
  • All travel and visa arrangements handled by us — flights, hotel, and expenses fully covered
  • Experience Middle Eastern culture and business first-hand while growing your global career
  • Time zone: Some overlap with KSA (UTC+3); Sunday–Thursday workweek on client side

 What Can You Expect From Us:

  • Career & Development – Trainings, workshops, and collaboration with top industry experts
  • Exciting Challenges – Work with leading financial market brands and award-winning projects
  • Supportive Team – Knowledge sharing during Wednesday Wisdom meetings & tech breakfasts
  • Autonomy & Innovation – We welcome your ideas and initiatives
  • Stable Employment - Clear terms on B2B contract
  • Work-Life Balance – Flexible working hours and a culture that values personal time
  • Hybrid or Remote Work Model – It’s up to you
  • Perks & Benefits – Private medical care, Multisport card, English lessons, training budget, and more
  • Trust & Transparency – Open communication and a culture of feedback
,[Mobile App Development: Design, develop, and maintain scalable and performant mobile applications using React Native. , Component-Based Architecture: Build reusable, modular, and maintainable UI components optimized for cross-platform usage. , API Integration: Integrate with backend services using RESTful while ensuring smooth data flow and synchronization. , Performance Optimization: Optimize applications for speed, responsiveness, and memory usage across iOS and Android devices. , Cross-Platform Compatibility: Ensure consistent UI/UX experiences and handle platform-specific differences (iOS vs Android). , State Management: Implement scalable state management solutions (Redux Toolkit, Context API, or Recoil) for predictable and maintainable app architecture. , Native Modules & Third-Party Libraries: Work with native modules and third-party packages, ensuring smooth bridging between native code and JavaScript. , Testing & Debugging: Write and maintain unit, integration, and end-to-end tests using Jest, React Native Testing Library, and Detox. , Security Best Practices: Implement secure storage for tokens (SecureStore/Keychain), data encryption, secure communication (HTTPS/TLS), and input validation to protect mobile apps from vulnerabilities. , App Store Deployment: Manage the process of building, signing, and deploying applications to the Apple App Store and Google Play Store. , Documentation: Maintain clear technical documentation, reusable component libraries, and coding guidelines for team alignment and scalability. Requirements: React native, JavaScript, Redux Toolkit, RESTful APIs, CI/CD, Leadership skills Additionally: Sport subscription, Private healthcare, International projects, In-house trainings, Small teams, Team events, Flat structure, Training budget, Free coffee, Bike parking, Playroom, Shower, No dress code, Table football, Kitchen, PS4, Modern office, Startup atmosphere, Mobile phone, Free fresh fruits, Free tea.

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