Android Developer

Android Developer

Job
-6984-9-01/09

Location:

O Fallon, MO (Locals only)

Company:
Mastercard

We are looking for a qualified Android Developer located near O Fallon, MO, who can work onsite. The primary purpose of this role is to develop and deliver high‑quality authentication products for e‑commerce transactional use cases that drive uptake and revenue. The authentication products include , Token Authentication Service, and Token Authentication Framework.

• Bachelor's degree in Information Technology, Computer Science, or equivalent education

• Proficient in native Android development using Kotlin or Java and frameworks such as Jetpack Compose or the Android SDK, with a solid understanding of Android architecture.
• Experience with cross‑platform mobile development tools such as React Native, Flutter, or Xamarin.
• Hands‑on experience working with Coroutines.
• Intermediate experience using Java/Spring/RESTful APIs.
• Intermediate experience conducting unit, component, integrated and functional tests (e.g., JUnit, Mockito, Cucumber).
• Experience with Live Data and Flows.
• Familiarity with architectural patterns such as MVVM, MVP, MVI.
• Good experience writing unit test cases.
• Experience debugging apps, fixing bugs, and improving performance.
• Knowledge of security guidelines applied in mobile app development.
• Knowledge of version control and CI/CD.
• Experience working in an Agile environment.
• Experience implementing APIs and third‑party SDKs.
• Problem‑solving skills and good analytical mindset.
• Soft‑spoken, team player, strong communication and negotiation skills.

• Knowledge of other web technologies and UI/UX standards.
• Knowledge of security models, encryption standards, and algorithms.

• Architect, design, and build native and cross‑platform applications.
• Collaborate with cross‑functional teams to define, design, and ship new features.
• Unit‑test code for robustness, including edge cases, usability, and general reliability.
• Work on feature development, defect fixes, and improve application performance.
• Continuously discover, evaluate, and implement new technologies to maximize development efficiency.
• Design and build libraries/frameworks/applications for the Android platform.
• Ensure performance, quality, and responsiveness of applications.
• Support the entire application lifecycle from concept to design, testing, release, and support.
• Work with Agile methodologies.

• Entry level

• Full‑time

• Engineering and Information Technology

• Software Development