Sr Mobile Developer

  • HSK Technologies INC
  • Denver, Colorado
  • 01/11/2026
Information Technology Telecommunications SQL Testing

Job Description

Job Description Were looking for an experienced Senior Mobile Application Developer to develop and maintain iOS and Android apps. The ideal candidate will have expertise in Swift, Kotlin, app architecture, and mobile development best practices. If you're passionate about building scalable and high-performance mobile apps, wed love to hear from you! This a contract position and fully remote Responsibilities: Develop and maintain iOS and Android applications using Swift and Kotlin. Implement mobile apps following iOS Human Interface Guidelines and Android Material Design. Integrate RESTful APIs, manage local storage (Core Data, SQLite, Room, etc, and ensure app performance optimization. Use design patterns like MVC, MVVM, MVP, and VIPER for scalable architectures. Conduct unit testing and test-driven development (TDD Collaborate in an Agile/Scrum environment with cross-functional teams. Optimize app performance using debugging tools like Xcode Instruments and Android Profiler. Required Qualifications: 5+ years of experience in mobile app development for iOS and Android. Proficiency in Swift (iOS) and Kotlin (Android Strong understanding of mobile UI guidelines (iOS and Android Experience with REST APIs, unit testing, and Agile methodologies. Familiarity with Git for version control. Preferred Qualifications: Bachelors in Computer Science or related field.