Mobile Engineer; Kotlin​/Android

Join the Data Annotation team and contribute to developing cutting‑edge AI systems while enjoying the flexibility of remote work and setting your own schedule. We are looking for proficient programmers to help advance AI development. As a member of Data Annotation’s coding team, you’ll be part of a growing community of over 100,000 professionals—including front‑end, back‑end, full‑stack, machine‑learning, and other engineers—driving real‑world impact in AI development.

Work closely with state‑of‑the‑art AI models to build challenging coding tasks, beautiful apps, and insights through data analysis and visualization. Your work directly contributes to refining intelligent systems that learn, adapt, and evolve. Some team members treat this as a primary focus; others balance it alongside a full‑time role, choosing projects and schedules that align with their availability and goals.

To get started, sign up for an account and complete a short assessment (our hiring interview). Once you pass, you’ll receive an email confirmation and paid work will become available through our platform.

• Fully remote – work from anywhere in the US, Canada, UK, Ireland, Australia, or New Zealand.
• Flexible schedule – choose which projects you take on and when you work.
• Competitive pay – projects are paid hourly, starting at $40+ USD per hour, with opportunities for higher‑paying projects based on performance.
• Impact – help shape the future of AI technologies.

• Design and solve diverse coding problems used to train AI systems with an emphasis on Android development.
• Write clear, high‑quality code snippets and detailed explanations.
• Evaluate AI‑generated code for accuracy, performance, and clarity.
• Provide feedback that directly shapes the next generation of AI models.

• Fluency in English (native or bilingual level).
• Preferred experience in Kotlin.
• Proficiency in at least one of the following programming languages or frameworks:
  JavaScript, Type Script, Python, C, C#, C++, React, Go, Java, or Swift.
• Excellent writing and grammar skills.
• A bachelor’s degree (completed or in progress).
• Previous experience as a Software Developer, Coder, Software Engineer, or Programmer is preferred.

Payment is made via Pay Pal. We will never ask for any money from you. Pay Pal handles currency conversions from USD. This job is only available to candidates located in the US, Canada, UK, Ireland, Australia, or New Zealand.

Referrals increase your chances of interviewing at Data Annotation by 2x.

Entry level

Full‑time

Engineering and Information Technology