Senior Mobile Engineer - Remote, AI Coding Evaluation

24-Mag Llc; New York (NY); Remote; USD 69,000 - 138,000; Full time

Benefits offered by this job

Fully remote

Freelance / contract engagement

Competitive hourly rate: $50–$100

Job summary

24-MAG LLC is seeking senior mobile developers for a specialised remote consulting role focused on iOS, Android, or cross-platform development. The work centers on designing challenging tasks to evaluate AI model bug fixing, feature implementation, and performance improvements.

Ideal candidates will craft reproducible environments, deterministic verifiers, and reference solutions while maintaining high engineering quality.

Qualifications

• Extensive hands-on mobile software engineering experience.
• Senior level with iOS/Android or cross-platform tracks.
• Strong debugging, performance optimization, and architecture skills.

Responsibilities

• Design realistic and technically challenging mobile software engineering tasks using suitable repositories.
• Create coding challenges involving bug fixes, feature development, refactoring, and performance improvements.
• Develop tasks requiring understanding of mobile architecture and engineering practices.
• Incorporate complex state, asynchronous operations, and lifecycle behaviour into scenarios.
• Ensure tasks reflect practical engineering problems encountered in professional mobile development.
• Develop tasks within iOS/Android/cross-platform areas and apply Swift/Kotlin/React Native/Flutter.
• Build reproducible environments and deterministic verifiers for evaluation.
• Produce complete reference implementations demonstrating successful solutions.
• Document requirements, verification procedures, and acceptance criteria clearly.
• Maintain high standards of reproducibility and evaluation reliability.

Skills

Mobile development

iOS

Android

Cross-platform

Swift

Kotlin

React Native

Flutter

TypeScript/JavaScript

SwiftUI

UIKit

Jetpack Compose

Performance debugging

Refactoring

Automated testing

Tools

Xcode

Android Studio

Git

CI/CD

Job description

24-MAG LLC is seeking senior mobile developers for a specialised remote consulting role focused on iOS, Android, or cross-platform development. The work centers on designing challenging tasks to evaluate AI model bug fixing, feature implementation, and performance improvements.

Ideal candidates will craft reproducible environments, deterministic verifiers, and reference solutions while maintaining high engineering quality.