Senior Software Engineer for Code Reviewing LLM Data Training (Kotlin)

G2i Inc.; Remote; ZAR 300 000 - 400 000; Part time

Job summary

A remote AI training company is seeking a Code Reviewer with extensive Kotlin experience to evaluate annotations of AI-generated Kotlin code responses. Responsibilities include reviewing coder evaluations, ensuring conformity to quality standards, and providing constructive feedback. Ideal candidates should have 5–7 years in Kotlin development or related fields, proficient communication skills, and solid knowledge of the Kotlin ecosystem. Compensation is based on experience, with rates personalized for each project.

Qualifications

• 5–7+ years of experience in Kotlin development, QA, or code review.
• Strong knowledge of Kotlin syntax, coroutines, debugging, edge cases, and testing.
• Experience with Gradle, testing frameworks, and the Kotlin/JVM ecosystem.

Responsibilities

• Review and audit annotator evaluations of AI-generated Kotlin code.
• Assess if the Kotlin code follows the prompt instructions, is functionally correct, and secure.
• Validate code snippets using proof-of-work methodology.

Skills

Kotlin development

Code review

Debugging

Communication skills

Tools

Gradle

Testing frameworks

Job description

10-min AI interview, project starts Jan 29, rare languages = higher placement rates

About the Company

G2i connects subject-matter experts, students, and professionals with flexible, remote AI training opportunities, including annotation, evaluation, fact-checking, and content review. We partner with leading AI teams, and all contributions are paid weekly once approved, ensuring consistent and reliable compensation.

About the Role

We're hiring a Code Reviewer with deep Kotlin expertise to review evaluations completed by data annotators assessing AI-generated Kotlin code responses. Your role is to ensure that annotators follow strict quality guidelines related to instruction-following, factual correctness, and code functionality.

Responsibilities

• Review and audit annotator evaluations of AI-generated Kotlin code.
• Assess if the Kotlin code follows the prompt instructions, is functionally correct, and secure.
• Validate code snippets using proof-of-work methodology.
• Identify inaccuracies in annotator ratings or explanations.
• Provide constructive feedback to maintain high annotation standards.
• Work within Project Atlas guidelines for evaluation integrity and consistency.

Required Qualifications

• 5–7+ years of experience in Kotlin development, QA, or code review.
• Strong knowledge of Kotlin syntax, coroutines, debugging, edge cases, and testing.
• Experience with Gradle, testing frameworks, and the Kotlin/JVM ecosystem.
• Comfortable using code execution environments and debugging tools.
• Excellent written communication and documentation skills.
• Experience working with structured QA or annotation workflows.
• English proficiency at B2, C1, C2, or Native level.

Preferred Qualifications

• Experience in AI training, LLM evaluation, or model alignment.
• Familiarity with annotation platforms.
• Exposure to RLHF (Reinforcement Learning from Human Feedback) pipelines.
• Background in Android development or backend services with Kotlin.

Compensation

Hourly rates are personalized based on your experience level, educational background, location, and industry expertise. You'll see your specific rate in your contract offer before signing. Rates for technical roles can vary significantly based on these factors and can be re-evaluated for different projects based on your performance and experience.