Mobile Engineer

VLink Inc; Jakarta Pusat; On-site; IDR 167,400,000 - 279,000,000; Full time

Job summary

VLink Inc in Jakarta is seeking a mobile Flutter developer to design and implement cross-platform apps using Flutter and Dart, with emphasis on scalable architectures.

You will work on UI, state management, API integration, security, and release readiness, collaborating with QA and product teams to deliver polished mobile experiences. The role requires strong problem-solving and ability to mentor juniors.

Qualifications

• Proficient in Flutter and Dart with strong OO and null safety.
• Experience building responsive UI and complex forms.
• Knowledge of REST APIs, authentication, and session management.
• Experience with native Android/iOS integration and platform channels.
• Testing experience across unit, widget, and integration tests.

Skills

Flutter

Dart

OOP

Null-safety

Async programming

Widget lifecycle

UI development

Responsive layouts

Navigation

Forms

Validation

State management

REST APIs

JSON

Authentication

Session management

Secure storage

Offline mode

Mobile security

Platform channels

Native integration

Push notifications

Testing

Unit testing

Widget testing

Integration testing

Memory management

Performance optimization

Crash reporting

Release engineering

Code signing

App deployment

Git

CI/CD

Documentation

Problem solving

Scalable code

Tools

Git

CI/CD pipelines

Platform channels

Job description

• Proficient in Flutter and Dart, including OOP, null safety, asynchronous programming (Future & Stream), and Flutter widget lifecycle.
• Strong understanding of Flutter UI development, responsive layouts, navigation, forms, validation, and state management (Provider, BLoC, Riverpod, or equivalent).
• Experienced in integrating REST APIs, JSON, authentication, and session management.
• Familiar with secure data storage, local databases, offline capabilities, and mobile application security.
• Knowledgeable in native Android/iOS integration, platform channels, device permissions, plugins, and push notifications.
• Experienced in mobile application testing, including unit testing, widget testing, integration testing, and device compatibility testing.
• Understanding of mobile performance optimization, memory management, error handling, crash reporting, and troubleshooting.
• Familiar with Android/iOS build configurations, code signing, app deployment, and Google Play Store / Apple App Store release processes.
• Proficient in Git, CI/CD pipelines, dependency management, code review, and technical documentation.
• Strong problem-solving skills with the ability to develop scalable, maintainable, and reliable mobile applications.

Experience Requirements:

• Junior: Basic to intermediate knowledge of Flutter and Dart, with the ability to develop standard UI screens, forms, and API integrations under guidance.
• Middle: Proven ability to independently develop end-to-end mobile features, implement state management, secure storage, native integrations, testing, and release troubleshooting.
• Senior: Strong expertise in mobile architecture, application security, performance optimization, Android/iOS release engineering, and complex cross-platform troubleshooting. Capable of leading technical decisions and mentoring developers.