Senior Mobile Developer (Remote-Worldwide)

Your Software Supplier; United States; Remote; USD 55,000 - 83,000; Part time

Job summary

Micro1 is seeking a highly skilled mobile developer to create challenging AI-focused mobile tasks for frontier models. The contractor will design, implement, and verify cross-platform mobile problems, with emphasis on real-world debugging and performance.

Tasks cover TypeScript/JavaScript, Dart, Swift and Kotlin across iOS, Android, and cross‑platform stacks. The role is remote, ~15 hours per week, and includes delivering a reproducible environment, a reference solution, and deterministic

Qualifications

• Significant hands-on expertise in mobile development across at least one of the tracks: cross-platform, iOS, or Android.

Responsibilities

• Create realistic, interesting, and extremely challenging mobile coding tasks for frontier AI models using your preferred repositories.

Skills

Cross-platform development

React Native

Dart/Flutter

Swift

Kotlin

Mobile architecture

State management

Asynchronous programming

Tools

TypeScript

JavaScript

Job description

This job is with our partner Micro1.

Tasks

Role Type: Contractor (~15 hrs a week)

Location: Remote

In this role, you’ll apply your expertise to help train next-generation AI systems. Your work will shape how models learn, reason, and perform through high-quality, real-world input.

As an expert, you will create Reinforcement Learning Environments that test an AI model’s ability to solve complex mobile software engineering problems related to fixing code, creating features, refactoring code, and optimizing performance. You will be tasked with creating a reproducible environment and a golden reference solution for each problem.

Scope of Work

1. Create realistic, interesting, and extremely challenging mobile coding tasks for frontier AI models using your preferred repositories.
2. Design problems that require strong mobile engineering skills, such as tracking down subtle bugs, building non-trivial features, handling application state and lifecycle, or improving performance.
3. Develop tasks relevant to your expertise: cross-platform applications using TypeScript, JavaScript, or Dart; iOS applications using Swift; or Android applications using Kotlin.
4. For each task, define the problem, build a reproducible environment, and write deterministic verifiers that accept correct solutions across different valid implementations while rejecting incorrect, incomplete, or hard-coded approaches.
5. Provide a reference solution showing how the task can be solved.

Requirements

Preferred Qualifications

1. Significant hands‑on expertise in at least one of the following mobile development tracks:
2. Cross-platform: TypeScript or JavaScript with React Native, or Dart with Flutter.
3. iOS: Swift with SwiftUI or UIKit.
4. Android: Kotlin with Jetpack Compose or the Android View system.
5. Deep understanding of mobile application architecture, state management, asynchronous programming, and application lifecycle.
6. Proven ability to debug complex mobile applications, resolve bugs, and deliver effective performance improvements.