Mobile Application Developer

Mobile Application Developer
Lisboa
Lisboa, Lisboa, Portugal

We are looking for a Senior Mobile Developer with more than 5 years of experience building and maintaining native mobile applications for both i
OS and Android platforms.

Location: Lisbon, Braga or Coimbra (One day per week
- site)

Responsibilities

• Develop, maintain, and evolve native mobile applications for i
  OS (Swift) and Android (Kotlin).
• Apply architectural patterns such as MVVM, MVVM-C, MVI, and Clean Architecture.
• Integrate and consume RESTful APIs, ensuring efficient data handling and synchronization.
• Manage local data persistence using Room, Data
  Store, Shared
  Preferences, including encrypted storage when required.
• Ensure application security, performance optimization, and scalability.
• Write and maintain unit tests to ensure code quality and
  - term maintainability.
• Collaborate closely with designers, backend developers, and product teams to ensure UI/UX consistency.
• Participate in code reviews, technical discussions, and continuous improvement initiatives.

Must Have / Required Skills

• 5+ years of experience in native mobile development.
• Strong
  - on experience with Swift and Kotlin (basic Java knowledge is a plus).
• Proficiency with Xcode, Android Studio, Git, and Gradle.
• Experience with UIKit, Jetpack Compose, XML, and Material Design.
• Solid understanding of MVVM, MVVM-C, MVI, and Clean Architecture.
• Experience with reactive programming frameworks: Rx
  Swift, Combine, Coroutines/Flow, Rx
  Java/Kotlin.
• Strong experience integrating REST APIs using Retrofit and Ok
  Http.
• Dependency injection using Dagger / Hilt.
• Experience with unit testing (XCTest).
• Familiarity with Firebase tools such as Analytics, Crashlytics, and App Distribution.

Interested candidates are invited to send their CV along with their rate to j. sierra@asenium.com or apply directly.