Principal Mobile Engineer (Flutter/React Native) — AI-Driven, Remote

Modus Create; United States; Remote; USD 180,000 - 240,000; Full time

Job summary

Modus Create is seeking a Principal Mobile Engineer skilled in Flutter or React Native, driving architecture and delivery of cross-platform mobile products. You will work closely with clients, product teams, designers, and engineers to take initiatives from concept through deployment, embracing AI-assisted tooling to accelerate progress.

The role requires hands-on leadership, deep mobile expertise, and the ability to raise engineering standards while delivering high-quality experiences at scale.

Qualifications

• Extensive professional experience building and delivering production-grade mobile applications.
• Deep expertise in Flutter and/or React Native and the surrounding cross-platform mobile ecosystem.
• Strong understanding of mobile application architecture, including scalability, performance, maintainability, and reliability.
• Proven experience taking mobile products through the full development lifecycle, from architecture and implementation through App Store and Google Play deployment.
• Experience serving as a Tech Lead, Principal Engineer, or senior technical owner for complex mobile initiatives.
• Strong knowledge of TypeScript/JavaScript for React Native specialists and Dart for Flutter specialists.
• Experience integrating mobile applications with REST APIs, backend services, third-party SDKs, authentication systems, and cloud services.
• Strong understanding of mobile testing strategies, code quality, performance optimization, monitoring, and release stability.
• Experience designing and maintaining CI/CD pipelines for mobile applications.
• Hands-on experience incorporating AI-assisted development tools such as Claude Code, GitHub Copilot, Cursor, or similar technologies into engineering workflows.
• Understanding of how Generative AI and LLM capabilities can be integrated into modern mobile product experiences.

Responsibilities

• Architect and build high-quality, cross-platform mobile products.
• Lead mobile teams while collaborating with clients, product teams, designers, and engineers.
• Drive AI-assisted and agentic development to accelerate delivery and improve quality.
• Balance innovation with performance, maintainability, and user experience across mobile apps.
• Mentor engineers and establish strong mobile engineering standards and practices.

Skills

Flutter

React Native

TypeScript/JavaScript

Dart

CI/CD

AI-assisted development

Mobile architecture

Tech Leadership

Tools

Expo/EAS

Firebase

Cloud services

Job description

Modus Create is seeking a Principal Mobile Engineer skilled in Flutter or React Native, driving architecture and delivery of cross-platform mobile products. You will work closely with clients, product teams, designers, and engineers to take initiatives from concept through deployment, embracing AI-assisted tooling to accelerate progress.

The role requires hands-on leadership, deep mobile expertise, and the ability to raise engineering standards while delivering high-quality experiences at scale.