Cross-Platform App Developer AI Trainer

Salary: $104,000 - 208,000 per year Requirements: We require fluency in English at a native or bilingual level. We require proficiency in at least one of the following languages or frameworks: JavaScript, TypeScript, Python, C, C#, C++, React, Go, Java, Kotlin, or Swift. We require strong writing ability and excellent grammar. We require a bachelors degree, either completed or currently in progress. We prefer prior experience as a Software Developer, Coder, Software Engineer, or Programmer. We only consider candidates located in the US, Canada, UK, Ireland, Australia, or New Zealand. Responsibilities: We design and solve a range of coding challenges used to train AI systems. We write clean, high-quality code samples along with clear explanatory notes. We assess AI-generated code for correctness, efficiency, and readability. We provide input that helps shape and improve the next generation of AI models. We complete a short assessment to qualify for paid work on our platform. We choose projects and working hours that fit our availability and goals. Technologies: AI C# Support Java JavaScript Kotlin Machine Learning Python React Swift TypeScript More: We are DataAnnotation, a remote-first team focused on advancing artificial intelligence through practical coding work. We bring together a large community of more than 100,000 professionals across front-end, back-end, full-stack, machine learning, and other engineering disciplines. Our work is flexible, contract-based, and fully remote, allowing us to contribute from anywhere in the eligible countries. We offer competitive hourly pay, with opportunities for higher earnings based on performance, and we support team members who want to work part-time or make this their primary focus. last updated 34 week of 2026