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Mobile App Developer

$30 - $120/hr Worldwide Remote · worldwide coding Contract / freelance
Pay rate · $30 - $120/hr
  • Job Description
  • Job Summary: 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

  • Design, develop, and maintain robust, scalable mobile applications for iOS and Android.
  • Collaborate closely with product managers, designers, and backend engineers to define app features and deliver seamless user experiences.
  • Implement clean, efficient, and well-documented code adhering to industry best practices.
  • Troubleshoot, debug, and optimize application performance across devices and platforms.
  • Participate in code reviews and contribute to the continuous improvement of development processes and standards.
  • Stay up-to-date with emerging trends, technologies, and platform updates in mobile development.
  • Communicate complex technical issues clearly and concisely to both technical and non-technical stakeholders.

Required Skills and Qualifications

  • Expert-level experience in both iOS (Swift/Objective-C) and Android (Kotlin/Java) development.
  • Strong portfolio of shipped mobile applications on App Store and Google Play.
  • Deep understanding of mobile UI/UX principles and best practices.
  • Proficient in RESTful API integration, push notifications, and third-party SDKs.
  • Exceptional written and verbal communication skills, with a strong emphasis on clear and effective collaboration.
  • Proven ability to work independently and efficiently in a remote, distributed environment.
  • Strong problem-solving skills and meticulous attention to detail.

Preferred Qualifications

  • Experience with cross-platform frameworks such as Flutter or React Native.
  • Background in Agile software development methodologies.
  • Prior experience contributing to open-source projects or technical communities.
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