Senior Mobile Engineer (Remote | $50–$100/hr)

Synthires; United States; Remote; CAD 69,000 - 138,000; Full time

Benefits offered by this job

Remote work

Output-based engagement

Job summary

Synthires is seeking a Senior Mobile Software Engineer for a remote contract role. The position requires about 15 hours per week with compensation of $50–$100 per hour.

You will apply mobile development expertise to create robust evaluation environments and challenging coding tasks for AI-focused projects. Ideal candidates bring strong iOS or Android development skills, deep mobile architecture knowledge, and the ability to work independently.

Qualifications

• Expertise in iOS development using Swift, SwiftUI, or UIKit.
• Android development using Kotlin, Jetpack Compose, or the Android View system.
• Deep understanding of mobile app architecture and design patterns.
• Strong debugging and troubleshooting abilities for complex mobile applications.
• Experience with state management, asynchronous programming, and lifecycle management.
• Ability to build maintainable, scalable, and high-performance mobile applications.
• Strong written communication and technical documentation skills.
• Ability to work independently in a remote environment.

Responsibilities

• Design realistic and challenging mobile software engineering tasks that reflect real-world development scenarios.
• Create coding challenges involving bug fixing, feature development, code refactoring, architecture improvements, and performance optimization.
• Build reproducible development environments for consistent evaluation of solutions.
• Develop deterministic validation and testing frameworks to verify task completion.
• Create tasks focusing on mobile architecture, state management, lifecycle handling, asynchronous programming, and performance optimization.
• Produce high‑quality reference solutions that demonstrate effective approaches to solving each task.
• Document problem requirements, expected behaviors, evaluation criteria, and solution methodologies.
• Review and refine tasks to ensure clarity, reproducibility, and technical rigor.

Skills

iOS/Swift

Android/Kotlin

Mobile architecture

Debugging

State management

Async programming

Documentation

Remote work

Tools

Xcode

Android Studio

Git

Job description

Position: Senior Mobile Software Engineer

Type: Contractor (~15 hours/week)

Compensation: $50–$100/hour

Location: Remote

About the Opportunity

We are seeking experienced Senior Mobile Software Engineers to contribute to a project focused on advancing next-generation AI systems. In this role, you will apply your mobile development expertise to create challenging software engineering environments that evaluate and improve AI capabilities in real-world coding scenarios.

Your work will involve designing complex mobile engineering tasks, building reproducible development environments, and creating reference solutions that help train AI models to solve advanced software engineering problems. No prior AI experience is required. Your mobile development expertise is what matters.

Responsibilities

• Design realistic and challenging mobile software engineering tasks that reflect real-world development scenarios.
• Create coding challenges involving bug fixing, feature development, code refactoring, architecture improvements, and performance optimization.
• Build reproducible development environments that allow consistent evaluation of solutions.
• Develop deterministic validation and testing frameworks to verify task completion accurately.
• Create tasks focused on mobile application architecture, state management, lifecycle handling, asynchronous programming, and performance optimization.
• Produce high-quality reference solutions that demonstrate effective approaches to solving each task.
• Document problem requirements, expected behaviors, evaluation criteria, and solution methodologies.
• Review and refine tasks to ensure clarity, reproducibility, and technical rigor.

Required Qualifications

• Expertise in at least one of the following areas:
• iOS development using Swift, SwiftUI, or UIKit.
• Android development using Kotlin, Jetpack Compose, or the Android View system.
• Deep understanding of mobile application architecture and design patterns.
• Strong debugging and troubleshooting abilities for complex mobile applications.
• Experience with state management, asynchronous programming, and application lifecycle management.
• Ability to build maintainable, scalable, and high-performance mobile applications.
• Strong written communication and technical documentation skills.
• Ability to work independently in a remote environment.

Preferred Qualifications

• Experience designing technical assessments, coding challenges, or engineering evaluations.
• Strong knowledge of software testing, validation frameworks, and automated quality assurance.
• Experience improving application performance, scalability, and reliability.
• Familiarity with CI/CD pipelines and mobile deployment workflows.
• Experience contributing to open-source projects or maintaining production-scale mobile applications.
• Strong understanding of software engineering best practices and clean code principles.
• Interest in AI-assisted development tools or AI-related engineering projects.

Compensation & Engagement

• Compensation ranges from $50–$100/hour.
• This is a remote contractor opportunity with an expected commitment of approximately 15 hours per week.
• Compensation is output-based and tied to successfully completed tasks that meet project requirements.
• Minimum weekly submission requirements may apply.
• Flexible work schedule with fully remote participation.

Application Process

• Submit your application and relevant mobile development experience.
• Complete any required technical screening or assessment.
• Participate in project onboarding if selected.
• Begin creating mobile engineering tasks, environments, and reference solutions.