Senior React Native Mobile App Engineer

About Us

Step into the wild world of One Day Only  – South Africa's OG daily deals hub. We're the pioneers of cool discounts, hitting you for just one day because, well, why over complicate things? We've got the big names, top suppliers, and a dash of our secret sauce to make you feel like a BIG DEAL. Not to brag, but we have over a million potential savvy shoppers getting our daily dose every 24 hours.

We're not fussy – if the price is right and the quality checks out, we're selling it. That's what makes us the go-to for both the smart buyer and the eager seller. Toss in the urgency of our deals, and boom, success happens quicker than you can blink. So, jump in, where FOMO meets killer deals, and let's turn every day into a retail party!

You're the kind of engineer who notices a dropped frame before anyone else does and can't resist shaving a few milliseconds off app performance. React Native is your home turf, but you're just as comfortable diving into Swift, Kotlin, CI/CD pipelines, or untangling a tricky API integration. You care as much about clean architecture as you do about pixel-perfect UI, and you've probably muttered, "There's definitely a better way to automate this."

You enjoy mentoring others, love solving complex problems, and get a little too excited when an app store release goes off without a hitch. Most importantly, you build apps that people genuinely enjoy using, and you never settle for "it works" when it could be exceptional.

• Feature Development & Delivery
  • Design and build high-quality features across React Native, iOS (Swift/SwiftUI), and Android (Kotlin).
  • Take ownership of features end-to-end — from technical design through to production release.
  • Write clean, well-tested, maintainable code that meets One Day Only 's engineering standards.
  • Participate in code reviews, providing constructive and thorough feedback to peers.
• Performance & Optimisation
  • Identify and resolve performance bottlenecks across app startup, rendering, and network layers.
  • Proactively monitor app health metrics and drive continuous performance improvements.
  • Champion best practices for memory management, battery efficiency, and smooth UI rendering.
• CI/CD & Mobile Dev Ops
  • Maintain and improve mobile CI/CD pipelines to ensure fast, reliable, and automated releases.
  • Manage app store submissions (Apple App Store & Google Play) and release processes.
  • Contribute to mobile Dev Ops tooling and automate repetitive operational tasks.
• API Integration & Backend Collaboration
  • Design and implement robust API integrations with One Day Only 's backend services.
  • Collaborate with backend engineers to define and evolve mobile-facing APIs.
  • Handle complex data flows, caching strategies, and offline-first considerations.
• UI/UX Implementation & Design Systems
  • Implement pixel-perfect UI from design specifications with high fidelity.
  • Contribute to and maintain the mobile design system and shared component library.
  • Partner with our UX Designer to ensure designs are both feasible and delightful to use.
• Mentorship & Team Growth
  • Mentor junior and mid-level mobile developers through code reviews and pair programming.
  • Share knowledge with the broader engineering team through presentations and documentation.
  • Contribute to a culture of continuous learning and technical excellence.

• 3–5+ years of professional mobile development experience.
• Strong proficiency in React Native — you've shipped production apps with it.
• Solid native mobile experience in Swift/SwiftUI (iOS) and/or Kotlin (Android).
• Proven track record of building and shipping consumer-facing mobile applications.
• Deep understanding of mobile performance optimisation and best practices.
• Experience with CI/CD pipelines for mobile (e.g. Bitrise, Fastlane, Git Hub Actions).
• Solid understanding of RESTful APIs and mobile networking patterns.
• Experience implementing designs from Figma or similar design tools with high accuracy.
• Familiarity with App Store and Google Play release processes.
• Experience with e-commerce or high-traffic consumer apps.
• Contributions to open-source mobile projects.
• Experience with GraphQL, Web Sockets, or push notification infrastructure.
• K…