Nextmark

React Native Developer

Contractor · Remote · 25 openings

In this role, you'll apply your expertise to help train next-generation AI systems. Your work will shape how models learn, reason, and perform through high-quality, real-world input. No prior experience in AI is required — your domain knowledge is what matters.

Key Responsibilities

  • Provide expert-level feedback and insight on complex React Native applications and workflows.
  • Evaluate, review, and annotate sample code, design patterns, and best practices within mobile development.
  • Identify and document challenges specific to cross-platform mobile development using React Native.
  • Contribute to the continuous improvement of AI systems by supplying high-quality, detailed examples and explanations.
  • Collaborate remotely with a diverse team to deliver actionable insights on user experience and UI/UX patterns.
  • Participate in structured discussions to articulate technical rationale both in writing and verbally.
  • Maintain high standards of communication to ensure clarity and accuracy in technical documentation.

Required Skills & Qualifications

  • Expert-level proficiency with React Native and associated ecosystems.
  • Strong understanding of JavaScript (ES6+) and mobile application architecture.
  • Proven track record of building and scaling mobile apps for iOS and Android.
  • Exceptional written and verbal communication abilities, with an emphasis on articulating complex concepts clearly.
  • Experience debugging and optimizing React Native applications for performance and scalability.
  • Ability to work autonomously and deliver high-quality contributions in a remote team setting.
  • Demonstrated attention to detail and commitment to code quality.

Preferred Qualifications

  • Prior experience with AI, ML, or data annotation projects.
  • Familiarity with TypeScript and modern state management libraries (Redux, MobX, etc.).
  • Open source contributions or published technical articles in the mobile development field.

$40–$120/hr

Remote