Kotlin Engineer

SME Careers
Software engineering
Remote
Some countries only
Contract

$55/hIndicative range provided by SME Careers

Posted on May 19, 2026 · Applications until November 6, 2026

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The Kotlin Engineer reviews and generates high-quality Kotlin content, evaluates AI-generated responses, and crafts expert-level model solutions. Key requirements include at least two years of hands-on Kotlin development experience and a Bachelor degree in Computer Science.

Description in English, as published by SME Careers.

As a remote, hourly paid Kotlin Engineer, you will review AI-generated responses and generate high-quality Kotlin-focused content, evaluating the reasoning quality and step-by-step problem-solving behind each solution. You will assess solutions for accuracy, clarity, and adherence to the prompt; identify errors in methodology or conceptual understanding; fact-check technical information; craft expert-level explanations and model solutions that demonstrate correct approaches; and rate and compare multiple AI responses based on correctness and reasoning quality. T his role is with SME Careers, a fast-growing AI Data Services company and subsidiary of SuperAnnotate that provides AI training data for many of the world’s largest AI companies and foundation model labs, helping to improve the world’s premier AI models.

Important:
There is no immediate project for this role; however, if qualified, you will be among the first experts we reach out to when relevant opportunities arise. This will also provide you with access to future projects available through our expert network.

Responsibilities

  • Develop AI Training Content: Create detailed prompts in various topics and responses to guide AI learning, ensuring the models reflect a comprehensive understanding of diverse subjects.
  • Optimize AI Performance: Evaluate and rank AI responses to enhance the model's accuracy, fluency, and contextual relevance.
  • Ensure Model Integrity: Test AI models for potential inaccuracies or biases, validating their reliability across use cases.

Requirements

  • 2+ years of hands-on Kotlin development experience.
  • Strong understanding of Kotlin null safety, coroutines, and functional idioms.
  • Professional software engineering experience using Kotlin for Android or backend services.
  • Minimum Bachelor’s degree in Computer Science or a closely related field.
  • Ability to critically evaluate idiomatic Kotlin style, design decisions, and architecture trade-offs.
  • Significant experience using large language models (LLMs) to assist with coding, debugging, and code review.
  • Excellent English writing skills with the ability to articulate complex technical concepts clearly.
  • Highly preferred: Experience with Ktor, Android Jetpack, and advanced coroutine usage in production systems.
  • Preferred: Merged pull requests in Kotlin open-source projects, competitive programming experience, or similar demonstration of strong problem-solving skills.
  • Experience reviewing app logic or mobile/backend architecture, with previous AI data training or model evaluation work strongly preferred and Minimum C1 English proficiency.

Required skills

  • LLM coding
  • Backend Engineering
  • Kotlin
  • Android development
  • Android Jetpack
  • Software Architecture
  • Coroutines
  • Ktor
  • English
  • Null Safety
  • Kotlin Flow
  • Functional Programming
  • Jetpack Compose
  • MVVM
  • Clean Architecture
  • REST APIs
  • Backend Development
  • Microservices
  • Gradle
  • JUnit
  • Kotlin Multiplatform (KMP)
  • Git
  • GitHub
  • Code Review
  • Pull Requests
  • Open Source Contributions
  • System Design
  • Dependency Injection (Dagger/Hilt)
  • SQL
  • PostgreSQL

Some countries: North America, Latin America, Europe, South Asia, Southeast Asia

About SME Careers

SME Careers is the expert platform of SuperAnnotate, hiring remote specialists to train and evaluate AI models, from languages to law. The original posting is on their site.

View this job on SME Careers

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