Mobile Engineer

1. Key Responsibilities (iOS OR Android):

• Implement and maintain features using Mapbox Navigation SDK, Maps SDK, Directions API, Search / Geocoding, route tiles, rerouting, and voice guidance, under guidance from senior engineers for complex customisations.
• Implement multimodal journey planning features across walking, cycling, bus, metro, driving and hybrid options.
• Implement Branch.io deep links, deferred deep links, Universal Links, attribution parameters, and app install-to-open routing.
• Use Bitrise, Bitbucket, SonarQube, Firebase, Jira, Confluence, Figma, and Slack as part of the day-to-day workflow.
• Support performance profiling of React Native using Flipper, React DevTools Profiler, Firebase Performance Monitoring, and Crashlytics; investigate and fix issues flagged by production telemetry.
• Participate in code reviews, sprint planning/refinement, and testing cycles.

1.1 Platform track - Android:

• Implement mobile features using Kotlin, Jetpack Compose, React Native, TypeScript, and Native Modules.
• Support Android App Links alongside the deep-linking stack above.
• Assist with release management via Google Play Console and Google Play Store.
• Use Android Studio Profiler and Logcat/ADB for debugging and basic performance checks.

1.2 Platform track - iOS:

• Implement mobile features using Swift, SwiftUI, UIKit, React Native, TypeScript, and Native Modules.
• Assist with release management via TestFlight and App Store Connect.
• Use Xcode Instruments and Xcode Debugger/LLDB for debugging and basic performance checks.

2.

Requirements:

• 3–5 years of mobile engineering experience (Android or iOS), including some production release experience.
• Working experience with Mapbox and/or OpenStreetMap and/or Google Maps SDKs — does not need to be at architecture-owner depth.
• Solid skills in either Android (Kotlin, Jetpack Compose) or iOS (Swift, SwiftUI, UIKit) , plus working knowledge of React Native.
• Experience shipping features in a production mobile app (Android or iOS) — App Store / Play Store release cycle experience is a plus.
• Comfortable working with backend APIs, Git-based CI/CD, and standard mobile testing practices.
• Good communication skills and ability to work within an agile / scrum team, taking direction from senior engineers/tech leads on architecture-level decisions.

3. Preferred

Qualifications:

• Exposure to mobility/navigation apps (route planning, GIS, real-time tracking) is a strong plus.
• Familiarity with GPS/GNSS, Bluetooth Low Energy, geofencing, or basic sensor-based location tracking.
• Interest in or exposure to Android Auto or Apple CarPlay integration (whichever matches the candidate's platform track) — not required, but a plus.
• Familiarity with GIS concepts such as GeoJSON, vector/raster tiles, spatial search, or route geometry.
• Experience with REST/GraphQL API integration, and cloud services such as Firebase, AWS, or GCP.
• Basic understanding of mobile security practices (dependency scanning, secure storage) and unit testing frameworks (JUnit/Mockito for Android; XCTest for iOS; Jest for React Native).
• Familiarity with Clean Architecture/MVVM patterns is a plus, though not required to own architecture decisions independently.

4. Benefit:

• Base salary: 50.000.000 VND - 70.000.000 VND (Negotiable)
• Allowance: 2.600.000 VND/month.
• Working time from Mon to Fri.
• Working location: Ba Dinh District, Hanoi.
• Dynamic working environment.
• Full salary package insurance.
• 15 annual leaves per year.
• Other benefit by current law.