Frontend Developer

Salary: $120000 - 239000 per year Requirements: We require native-level or bilingual fluency in English. We need strong proficiency in at least one of these languages or frameworks: JavaScript, TypeScript, Python, C, C#, C++, React, Go, Java, Kotlin, or Swift. We expect excellent writing ability and strong command of grammar. We require a bachelors degree, completed or currently in progress. We prefer prior experience as a Software Developer, Coder, Software Engineer, or Programmer. We can only consider candidates based in the United States, Canada, the United Kingdom, Ireland, Australia, or New Zealand. Responsibilities: We assign a variety of coding challenges to help train our AI systems. We expect you to produce clean, well-structured code examples and thorough explanations. We rely on you to review AI-generated code for correctness, efficiency, and readability. We ask you to share detailed feedback that helps improve future AI model performance. We may have you build applications with rich functionality and work on data analysis or visualization tasks. We use a short assessment as our screening step before paid projects become available. Technologies: AI C# Java JavaScript Kotlin Machine Learning Python React Swift TypeScript Frontend More: We are Cobalt Streamworks, a remote-first team focused on advancing AI through practical coding work. Our coding community includes more than 100,000 professionals across front-end, back-end, full-stack, machine learning, and other engineering disciplines. We offer fully remote work, a flexible schedule, and hourly project-based pay ranging from $50 to $100+ USD, with opportunities for higher rates based on strong performance. We welcome team members who want to fit this work around other commitments or make it their main focus. Work is available only to qualified candidates in the United States, Canada, the United Kingdom, Ireland, Australia, and New Zealand, and payment is handled through PayPal. last updated 28 week of 2026