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Trainee React Native App Developer Jobs in California

Headway Tek Inc

React Native Developer

Alameda, CA · On-site

React Native Developer Location: Alameda, CA(Hybrid) Employment Type: C2C or W2 Role Summary ... Experience with app store release processes for iOS and Android, including CI/CD pipeline ...

New

Krest Global Solutions

React native Engineer

Alameda, CA

$58 - $60/hr

Role :- React native Engineer Location:- Alameda CA --4days Onsite Employment type:- Contract About ... Experience with app analytics, crash reporting, and monitoring tools Previous work on apps with a ...

Reconstruct

Mobile App Developer

Menlo Park, CA · On-site

Mobile App Developer position How often do you get the chance to make a global impact developing ... Knowledge of React Native, Java, Swift or other similar programming languages

Reconstruct

Mobile App Developer

Menlo Park, CA

Mobile App Developer position How often do you get the chance to make a global impact developing ... Knowledge of React Native, Java, Swift or other similar programming languages Employment Type ...

Arena Club

Senior React Native Engineer

Los Angeles, CA · On-site

$143K - $179K/yr

They are seeking a highly skilled Senior Mobile Engineer with strong experience in React Native to ... Responsibilities : • Contribute to the ongoing development of Arena Club's mobile app using React ...

Arena Club

Senior React Native Engineer

San Francisco, CA · On-site

$157K - $196K/yr

They are seeking a highly skilled Senior Mobile Engineer with strong experience in React Native to ... Responsibilities : • Contribute to the ongoing development of Arena Club's mobile app using React ...

Foundation Labs

We're looking for a developer experienced with React Native and additional experience in one or more other mobile development environments, such as iOS development with Swift/Objective-C, or Android ...

Arena Club

Senior React Native Engineer

Los Angeles, CA · Remote

$132K - $174K/yr

Contribute to the ongoing development of Arena Club's mobile app using React Native, delivering new ... Partner with backend and web engineers to ensure seamless functionality across platforms * Design ...

Arena Club

Senior React Native Engineer

San Francisco, CA · Remote

$144K - $190K/yr

Contribute to the ongoing development of Arena Club's mobile app using React Native, delivering new ... Partner with backend and web engineers to ensure seamless functionality across platforms * Design ...

Arena Club

Senior React Native Engineer

San Francisco, CA · Remote

$160K - $210K/yr

Design and implement robust app architectures and complex user interfaces * Ensure the performance, quality, and responsiveness of the application * Raise the engineering bar, set development ...

Arena Club

Senior React Native Engineer

San Francisco, CA · On-site

$160K - $210K/yr

Design and implement robust app architectures and complex user interfaces * Ensure the performance, quality, and responsiveness of the application * Raise the engineering bar, set development ...

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Trainee React Native App Developer information

What is the difference between Trainee React Native App Developer vs Junior React Native Developer?

AspectTrainee React Native App DeveloperJunior React Native Developer
Required CredentialsBasic understanding of React Native, some coding experienceProficiency in React Native, some project experience
Work EnvironmentTraining programs, mentorship, entry-level projectsActive development, independent task handling
Employer UsageInternships, apprenticeships, entry-level rolesFull-time positions, team projects

The main difference is that a Trainee React Native App Developer is in the learning phase, focusing on gaining skills and experience, often under supervision. A Junior React Native Developer has already acquired foundational skills and works on real projects with more independence. Both roles are common in the industry, but the trainee role is more suitable for those starting out, while the junior role requires some prior experience.

What are the most commonly searched types of React Native App Developer jobs in California?

The most popular types of React Native App Developer jobs in California are:

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For Trainee React Native App Developer jobs in California, the most frequently searched job titles are:

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The top searched job categories for Trainee React Native App Developer jobs in California are:

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Cities in California with the most Trainee React Native App Developer job openings:

Trainee React Native App Developer jobs near you
Infographic showing various Trainee React Native App Developer job openings in California as of August 2026, with employment types broken down into 44% Full Time, 48% Part Time, and 8% Contract. Highlights an 97% Physical, 1% Hybrid, and 2% Remote job distribution.

React Native Developer

Headway Tek Inc

Alameda, CA • On-site

Other

Posted 3 days ago

New

Job description

Role: React Native Developer

Location: Alameda, CA(Hybrid)
Employment Type: C2C or W2

Role Summary

  • build and maintain consumer mobile features across iOS and Android using React Native, including CGM data visualization, AI-powered food logging, personalized metabolic insights, and AI health assistant experiences.
  • Own your areas of the React Native codebase end to end, from architecture and design through implementation, testing, and ongoing maintenance.
  • Write clean, well-tested, performant React Native code that works reliably across a wide range of iOS and Android devices and OS versions.
  • Identify and resolve performance issues across the React Native layer, including JavaScript thread bottlenecks, render
  • optimization, and memory management.
  • Work with native modules and understand how React Native bridges to iOS and Android platform capabilities, including integrations with CGM hardware SDKs and Bluetooth data streams.
  • Participate in Lingo's ongoing migration from React Native toward native iOS and Android where appropriate, contributing your perspective on what should migrate and how.
  • Conduct code reviews that raise the quality bar across the mobile team, sharing knowledge and holding a high standard for readability, testability, and maintainability.
  • Partner with Product and Design to translate requirements into well-scoped, high-quality engineering solutions and push back constructively when scope or approach creates unnecessary complexity.
  • Contribute to mobile testing practices, including unit, integration, and end-to-end testing across the React Native layer.

Required Qualification:

Bachelor's degree in computer science, Engineering, or a related technical discipline.

5+ years of professional software engineering experience, with at least 3 years using React Native as a primary technology in a production consumer application. Strong, demonstrable React Native expertise, including component architecture, state management, navigation, performance optimization, and the React Native new architecture (JSI, Fabric, TurboModules).

Working knowledge of iOS and/or Android platform fundamentals, sufficient to understand how React Native interacts with the native layer, read and interpret native code when debugging, and make informed decisions about native module usage.

Experience working with native modules in a React Native application, including consuming existing native modules and understanding how they bridge to platform capabilities.

Solid understanding of mobile application architecture patterns, including state management solutions (Redux, Zustand, or equivalent), navigation libraries, and offline-first design.

Experience with mobile performance profiling and optimization at the React Native layer, including identifying and resolving JavaScript thread and render performance issues.

Experience writing automated tests for React Native applications, including unit and integration tests and familiarity with end-to-end testing frameworks. Preferred Qualifications

Hands-on experience writing native iOS code in Swift or native Android code in Kotlin, beyond reading and debugging into actively building native modules or platform-specific features.

Experience in consumer health, digital health, or regulated industries where software quality has direct implications for end users.

Familiarity with CGM, biosensor, or IoT data integration in mobile applications, particularly real-time data streams from wearable hardware.

Exposure to Bluetooth Low Energy protocols and mobile SDK integration for wearable or connected health devices.

Exposure to on-device AI or ML capabilities such as Core ML or TensorFlow Lite integrated within a React Native application.

Experience with app store release processes for iOS and Android, including CI/CD pipeline integration for mobile builds.

Prior experience at a high-growth consumer technology company or digital health environment.

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