Senior Mobile Developer (React Native)

Job Description

We are looking for a Senior Mobile Developer to help build a world-class mobile experience used by customers every day. In this role, you will be a high-impact individual contributor responsible for developing and evolving our React Native application across iOS and Android, delivering high-quality mobile experiences that are fast, reliable, and scalable.

This is a high-autonomy role for an engineer who takes pride in the craft of mobile development. You will work closely with Product, Design, Backend, and Data teams to build polished mobile features while contributing to architecture decisions, performance improvements, testing practices, and release infrastructure.

The ideal candidate is deeply experienced in React Native development, understands the mobile ecosystem end-to-end, and enjoys building robust systems that scale while maintaining exceptional user experiences.

Responsibilities:

• Contribute to the architecture, development, and evolution of the React Native mobile application across iOS and Android.
• Build and maintain reusable, high-performance UI components using NativeWind while ensuring accessibility and design consistency.
• Integrate and manage content delivery through Sanity CMS, including schema design, GROQ queries, and real-time preview workflows.
• Contribute to feature flagging and experimentation infrastructure using LaunchDarkly, supporting controlled rollouts and A/B testing.
• Use Expo and the Expo ecosystem to streamline development workflows and manage native dependencies.
• Build and maintain mobile CI/CD pipelines using Expo Application Services (EAS) for automated builds, testing, and app store submissions.
• Maintain strong testing practices using Jest and React Native Testing Library, ensuring reliable test coverage.
• Build and extend UI automation tests using Detox or similar frameworks to protect critical user flows.
• Implement and manage application monitoring and observability using tools such as Datadog or Sentry.
• Own complex mobile initiatives from technical design through launch, monitoring, and iteration.
• Participate in architecture discussions, design reviews, and code reviews, maintaining high standards for quality and performance.
• Identify and reduce technical debt, improving maintainability and development velocity.
• Collaborate closely with Product, Design, and Backend teams to deliver high-quality mobile features.
• Diagnose and resolve performance issues, crashes, and memory problems using profiling and monitoring tools.
• Apply native platform knowledge (Swift or Kotlin) when working with native modules or platform-specific optimizations.
• Mentor junior and mid-level engineers and support technical hiring processes.

Requirements

• 7+ years of professional software engineering experience, including 4+ years in cross-platform mobile development
• Expert-level experience with React Native and cross-platform mobile architecture
• Strong proficiency in TypeScript with experience building scalable typed codebases
• Experience building reusable component libraries using NativeWind or Tailwind-style frameworks
• Experience integrating headless CMS platforms (Sanity CMS preferred)
• Experience implementing feature flags or experimentation platforms such as LaunchDarkly
• Strong experience with Expo (managed or bare workflows) and the broader Expo ecosystem
• Experience building mobile CI/CD pipelines (EAS, Fastlane, or similar) including automated builds and app store submissions
• Strong experience with automated testing using Jest and React Native Testing Library
• Experience implementing end-to-end UI automation testing using Detox, Maestro, Appium, or similar
• Experience with mobile observability and monitoring tools such as Datadog or Sentry
• Working knowledge of Swift (iOS) and/or Kotlin (Android) for native module integration and debugging
• Experience delivering large, complex mobile projects with measurable impact
• Strong written and verbal English communication skills
• Bachelor’s or Master’s degree in Computer Science, Engineering, or equivalent practical experience
• Must be located in Latam

Nice to Have

• Deep native mobile development experience in Swift (iOS) or Kotlin (Android)
• Experience working with React Native New Architecture (Fabric, TurboModules, JSI)
• Experience with Expo Router or file-based routing systems
• Experience implementing over-the-air updates using Expo Updates or CodePush
• Familiarity with additional mobile observability tools such as Firebase Crashlytics
• Contributions to open-source React Native libraries or technical content
• Experience working in high-growth technology companies with strong mobile engineering cultures

Benefits

• Work remotely Monday - Friday, 40 hours a week (no weekends)
• Vacation: 10 business days a year
• Holidays: 5 National Holidays a year
• Company Holidays: 5 Company Holidays a year (Christmas Eve, Christmas Day, New Year's Eve, New Year's Day, Zipdev Day)
• Parental Leave
• Health Care Reimbursement
• Active Lifestyle Reimbursement
• Quarterly Home Office Reimbursement
• Payroll Deduction Purchase Plans
• Longevity Bonus
• Continuous Learning Bonus
• Access to Training and Professional Development Platforms
• Did we mention it's REMOTE?!!

One of our core values at Zipdev is "Be authentic." that's why we encourage you to answer the application form in your own words; we are interested in getting to know you, not a digital assistant.

Wondering how our remote environment or our payment method work? We've put together some helpful answers in our FAQs at the bottom our our career site. Take a look and let us know if you have any other questions!