Senior Mobile Developer (iOS & Android)

Posted 17 hours 43 minutes ago by IT Human Resources

Contract
Not Specified
Other
Lisboa, Portugal
Job Description

We are looking for a Senior Mobile Developer with 5+ years of experience building and maintaining native iOS and Android applications. The ideal candidate has a strong grasp of clean architecture, performance optimization, and cross-functional collaboration.

Responsibilities

  • Develop and maintain native mobile apps using Swift (iOS) and Kotlin (Android).

  • Apply architectural patterns such as MVVM, MVI, MVVM-C, and Clean Architecture.

  • Integrate RESTful APIs and manage local data persistence.

  • Ensure application security, performance, and stability.

  • Write unit tests and maintain high code quality.

  • Collaborate with design and Back End teams to deliver consistent UI/UX.

Requirements

  • 5+ years of mobile development experience.

  • Strong proficiency in Swift and Kotlin; basic Java knowledge is a plus.

  • Experience with Xcode, Android Studio, Git, and Gradle.

  • Familiarity with UIKit, Jetpack Compose, XML, and Material Design.

  • Experience with RxSwift, Combine, Coroutines/Flow, RxJava/Kotlin.

  • REST API integration (Retrofit, OkHttp).

  • Dependency injection (Dagger, Hilt).

  • Data persistence (Room, DataStore, SharedPreferences, encrypted storage).

  • Unit testing (XCTest).

  • Firebase Analytics, Crashlytics, and App Distribution.