Senior React Native Engineer — Build Fast, Scalable Apps

iSystems Ltd; Karachi Division, Islamabad, Lahore; On-site; PKR 2,000,000 - 4,000,000; Full time

Job summary

iSystems Ltd in Karachi is seeking an experienced React Native mobile developer to build cross‑platform applications for iOS and Android. You will collaborate with designers and backend teams to deliver fluid, responsive UIs and robust features.

Ideal candidates have 5+ years in mobile development, 3+ years in React Native, and a strong grasp of state management, REST APIs, Firebase, and Clean Architecture. A proactive, collaborative mindset and familiarity with CI/CD are a plus.

Qualifications

• 5+ years of professional experience in mobile application development.
• At least 3 years hands-on React Native experience.
• Experience deploying cross‑platform apps for iOS and Android.
• Solid understanding of Redux, MobX or Context API for state management.
• Experience with RESTful APIs and third‑party libraries.
• Familiarity with Firebase services (Firestore, Authentication, Cloud Messaging).
• Knowledge of Clean Architecture and design patterns (MVC, MVVM).
• Experience with Git and Agile methodologies.
• Strong debugging and problem-solving skills; proactive performance optimization.
• Portfolio of published React Native apps on Google Play or Apple App Store is desirable.

Responsibilities

• Collaborate with designers and backend developers to build visually appealing UIs.
• Integrate mobile apps with RESTful APIs and third-party services.
• Write clean, maintainable code following best practices.
• Optimize performance, scalability and responsiveness.
• Implement state management using Redux, MobX or Context API.
• Utilize React Native components and libraries for engaging UX.
• Work with Firebase for authentication, real-time data and notifications.
• Apply Clean Architecture to ensure maintainability and scalability.
• Write unit and integration tests to ensure quality.
• Collaborate with QA to identify and resolve issues during testing.
• Stay updated with React Native trends and mobile dev advancements.
• Participate in code reviews and CI/CD pipelines.
• Ensure secure data storage and authentication practices.

Skills

Mobile app development

React Native

Cross-platform (iOS/Android)

State management

RESTful APIs

Debugging

Communication

Agile

Tools

Redux

MobX

Context API

Git

CI/CD

Firebase

Job description

iSystems Ltd in Karachi is seeking an experienced React Native mobile developer to build cross‑platform applications for iOS and Android. You will collaborate with designers and backend teams to deliver fluid, responsive UIs and robust features.

Ideal candidates have 5+ years in mobile development, 3+ years in React Native, and a strong grasp of state management, REST APIs, Firebase, and Clean Architecture. A proactive, collaborative mindset and familiarity with CI/CD are a plus.