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Kotlin Engineer (AI Response Evaluator)

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Job details

Pay

$55 USD/hr

Engagement

Contract, part-time

Location

Remote

17 countries

Posted

Jul 9, 2026

OpenTrain on Trustpilot

The work

You will evaluate AI-generated answers about Kotlin, Android development, backend engineering, software architecture, and coding with language models. Your feedback will help improve how AI handles software engineering tasks.

  • Review Kotlin answers for correctness, reasoning quality, and adherence to the prompt.
  • Write expert Kotlin explanations and model solutions that show correct approaches.
  • Fact-check technical claims and identify errors in methods or concepts.
  • Rate and compare AI responses for accuracy, clarity, and problem-solving quality.
  • Create prompts and responses that improve AI training across Kotlin and software engineering topics.
  • Test AI models for inaccuracies, bias, and reliability across different use cases.

Requirements

This is a remote, part-time contractor role for an experienced Kotlin engineer. The work calls for strong technical judgment, clear English writing, and the ability to explain software decisions.

  • Time: 20+ hours per week.
  • Language: Professional fluency in English.
  • Experience: At least 2 years of hands-on Kotlin development.
  • Education: Bachelor's degree in Computer Science or a closely related field.
  • Technical skills: Kotlin null safety, coroutines, functional programming patterns, Android or backend development, idiomatic Kotlin, design decisions, and architecture trade-offs.
  • Additional requirements: Professional software engineering experience and experience using language models for coding, debugging, or code review.
  • Experience: Intermediate level

Open to applicants in

  • Bangladesh
  • Bhutan
  • Brazil
  • Cambodia
  • Germany
  • India
  • Indonesia
  • Malaysia
  • Nepal
  • Pakistan
  • Philippines
  • Singapore
  • Sri Lanka
  • Thailand
  • Timor-Leste
  • United States
  • Vietnam

Preferred

  • Helpful background: Ktor, Android Jetpack, advanced coroutine use in production, merged Kotlin open-source pull requests, competitive programming, AI data training, model evaluation, or app-logic review.

How to apply

  1. Press Apply now. You create a free account and add your resume.
  2. Complete your application for this role on OpenTrain.

Job ID: cmrd8vdpi000tnj3lhcjdxx3g

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