Senior React Native Engineer

8 hours ago

Sandton, Gauteng, South Africa DeARX Full time

About The Job Senior React Native Engineer
Sandton / Hybrid | 12-Month Contract | 2 Positions Available
Ready to build the future of mobile banking?

We're looking for
two Senior React Native Engineers
with proven expertise in scaling large, secure, cross-platform mobile apps. If you're passionate about security-first development, thrive in complex financial environments, and love mentoring teams while solving tough architectural challenges this opportunity is for you.

Role Responsibilities

  • Lead the design & development of scalable, maintainable mobile applications using React Native.
  • Architect cross-platform solutions while knowing when to go native for performance & security.
  • Own CI/CD pipelines for mobile builds, testing & deployment.
  • Implement best-in-class mobile security: secure storage, token authentication, API integration, obfuscation.
  • Collaborate with backend engineers for seamless API integrations.
  • Conduct code reviews, mentor juniors, and enforce high engineering standards.
  • Monitor app performance with Dynatrace, Crashlytics, ELK, and ensure a smooth user experience.
  • Deep understanding of mobile app security best practices.
  • Experience with secure storage mechanisms, HTTPS, token-based authentication, code obfuscation.
  • Familiarity with iOS/Android platform security updates & third-party library risks.
  • Skilled at custom native modules (iOS: Swift/Obj-C | Android: Kotlin/Java).

Role Requirements

  • 5+ years hands-on React Native experience building enterprise-grade mobile apps.
  • Prior experience in banking or financial services (regulatory compliance, secure onboarding flows, demo mode).
  • Core: React Native, TypeScript, Expo, Redux/Zustand, Axios, React Navigation, MMKV.
  • DevOps: Azure DevOps, GitHub Actions, Firebase App Distribution.
  • Testing: Jest, Detox, React Native Debugger, Reactotron.
  • Design: Figma (Dev Mode), Storybook.
  • Monitoring: Dynatrace, ELK.
  • Excellent communication across cross-functional teams.
  • Ability to clearly explain technical trade-offs to business stakeholders.

Apply today
and help shape the next generation of secure mobile banking.

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