Freelance Senior Software Developer (Kotlin) - AI Trainer
MindriftJob Description
What this opportunity involves
- Design and maintain automated tests to ensure the quality, performance, and reliability of Kotlin and Android applications.
- Collaborate with developers to identify, reproduce, and resolve functional, performance, and UI issues across multiple environments.
- Define and improve quality standards across build pipelines, ensuring smooth CI/CD integrations and release stability.
- Monitor app behavior in production and use data‑driven insights to guide testing priorities and improvements.
- Apply professional judgment to assess AI responses.
What we look for
- Degree in Computer Science, Software Engineering or related fields.
- 5+ years of Kotlin including coroutines, extension functions, and sealed classes.
- 3+ years of Android/JVM development experience.
- Familiarity with JUnit 5, Kotest, MockK, and Android testing (Espresso, Robolectric).
- English proficiency - B2
- Stable internet connection
Project time expectations
Tasks for this project are estimated to take 6-10 hours to complete, depending on complexity. This is an estimate and not a schedule requirement; you choose when and how to work. Tasks must be submitted by the deadline and meet the listed acceptance criteria to be accepted.
Payment
- Paid contributions, with rates up to $40/hour*
- Fixed project rate or individual rates, depending on the project
- Some projects include incentive payments
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