Remote Mobile App Optimizer: Performance & Refactor

Kwanii; United States; Remote; USD 80,000 - 140,000; Full time

Job summary

Kwanii seeks a Mobile App Developer for a remote, project-based engagement to enhance and optimize an existing mobile application. You will assess the codebase, identify performance issues, and implement approved improvements while preserving stability.

Responsibilities include debugging, API integration, performance testing, and delivering updated code with documentation and handover assets. Prior experience with an existing app and strong debugging skills are essential.

Qualifications

• Proven experience enhancing, maintaining, or optimizing mobile apps.
• Experience with an existing mobile app/codebase is required.
• Portfolio or samples demonstrating mobile app development work.
• Proficiency in Flutter/Dart, React Native/JS/TS, Android/Kotlin/Java, or iOS/Swift.

Responsibilities

• Review current app/codebase and assess performance bottlenecks.
• Implement approved enhancements without breaking existing features.
• Debug, optimize, and refactor as needed for maintainability.
• Conduct functional, regression, and performance testing.
• Provide documentation and deliver updated source code and credentials.

Skills

Mobile app dev

Flutter

React Native

Android

iOS

API integration

Debugging

Code refactoring

Existing codebase

Education

CS/Software Engineering degree

Tools

Firebase Crashlytics

CI/CD

Automated testing

Play Store deployment

App Store deployment

Git

Job description

Kwanii seeks a Mobile App Developer for a remote, project-based engagement to enhance and optimize an existing mobile application. You will assess the codebase, identify performance issues, and implement approved improvements while preserving stability.

Responsibilities include debugging, API integration, performance testing, and delivering updated code with documentation and handover assets. Prior experience with an existing app and strong debugging skills are essential.