Mindrift is looking for a Freelance Software Developer (Kotlin) - Quality Assurance (AI Trainer) to enhance Generative AI models for specialized questions and complex reasoning. As a freelance AI Tutor in Coding, you will improve models through tasks like code generation and prompt evaluation in a fully remote, project-based setting.
What You'll Do
- Perform code generation and code review.
- Conduct prompt evaluation and complex data annotation.
- Train and evaluate large language models.
- Execute benchmarking and agent-based code execution in sandboxed environments.
- Work across multiple programming languages.
- Adapt guidelines for new domains and use cases.
- Follow project-specific rubrics and requirements.
- Collaborate with project leads, solution engineers, and supply managers on complex or experimental projects.
What We're Looking For
- A Bachelor's or Master’s Degree in Computer Science, Software Engineering, or a related field.
- At least 3 years of professional iOS/macOS development experience.
- Advanced (C1) or above English proficiency.
- Mid-level proficiency in Swift 5.9+, including SwiftUI, Combine, async/await, and the concurrency model.
- Hands-on experience with testing frameworks (XCTest, Quick/Nimble) and UI automation testing.
- Proficiency with Xcode, Swift Package Manager, and CI/CD tools (Fastlane, GitHub Actions, Xcode Cloud).
- Experience with App Store deployment and monitoring tools (Crashlytics, Firebase).
- Strong understanding of architectural patterns (MVVM, Clean Architecture) and performance optimization (ARC, Instruments).
- Experience integrating AI/ML capabilities (Core ML, Vision, Create ML).
- Practical use of AI-assisted tools for code generation, refactoring, and test automation.
- Strong skills in crash analysis, memory debugging, and performance profiling.
- Ability to learn new methods, switch between tasks quickly, and work with complex guidelines.
- Availability for a fully remote role with your own laptop and internet connection.
Technical Stack
- Languages: Swift 5.9+
- Frameworks: SwiftUI, Combine, XCTest, Quick/Nimble
- Tools: Xcode, Swift Package Manager, Fastlane, GitHub Actions, Xcode Cloud
- Monitoring: Crashlytics, Firebase
- AI/ML: Core ML, Vision, Create ML
Team & Environment
You will collaborate with project leads, solution engineers, and supply managers on projects.
Benefits & Compensation
- Get paid for your expertise, with rates that can go up to $38/hour depending on your skills, experience, and project needs.
- Take part in a part-time, remote, freelance project that fits around your primary professional or academic commitments.
- Work on advanced AI projects and gain valuable experience that enhances your portfolio.
- Influence how future AI models understand and communicate in your field of expertise.
Work Mode
This is a global, fully remote freelance role.
Mindrift believes in using the power of collective intelligence to ethically shape the future of AI.

