Kotlin App Developer and QA Specialist

About Rapid Cents

Rapid Cents is a leading Canadian payment processor providing advanced payment solutions for businesses of all sizes. We specialize in secure, scalable, and innovative platforms, helping businesses streamline their payment processes with ease. As we continue to grow, we're looking for passionate individuals to join our mission of powering seamless payments across industries.

We are looking for a highly skilled Kotlin App Developer and QA Specialist to join our expanding team at Rapid Cents
. This hybrid role is ideal for someone who is passionate about building cutting‑edge Android applications and ensuring software quality through robust testing practices. The ideal candidate will have a minimum of 3 years of professional experience in Kotlin development and 3 years of QA/testing experience
.

• Develop, enhance, and maintain Android applications using Kotlin.
• Collaborate closely with Product Managers, Designers, and fellow Developers to deliver high‑quality features.
• Ensure code quality through unit testing, peer reviews, and coding best practices.
• Optimize applications for maximum speed, scalability, and security.
• Stay updated on the latest industry trends and integrate best practices into app development.

• Create and maintain detailed, comprehensive, and well‑structured test plans and test cases.
• Perform functional, regression, integration, performance, and user acceptance testing (UAT) on mobile applications.
• Automate test cases wherever feasible using tools like Espresso, Appium, or equivalent.
• Identify, document, and track bugs using project management and bug tracking tools (e.g., Jira).
• Ensure product releases meet the highest quality standards through rigorous QA methodologies.

• Minimum 3 years of Kotlin development experience
  .
• Minimum 3 years of QA/testing experience
  .
• Strong knowledge of Android SDK, Android Studio, and mobile app architecture patterns (MVVM, MVP).
• Hands‑on experience with automated testing frameworks (e.g., Espresso, JUnit, Appium).
• Familiarity with RESTful APIs, secure coding practices, and app publishing processes.
• Good understanding of continuous integration (CI/CD) pipelines.

• Attention to detail with a strong focus on delivering high‑quality software.
• Problem‑solving mindset with excellent debugging and troubleshooting skills.
• Ability to thrive in a collaborative, Agile/Scrum environment.
• Strong verbal and written communication skills.

• Experience with Jetpack Compose.
• Familiarity with Kotlin Multiplatform Mobile (KMM).
• Knowledge of performance tuning and mobile application security best practices.
• Previous experience with payment gateways or financial technologies is a plus.