Senior Mobile Engineer (Android)

The mobile engineering team's job is to develop new features and support our best-in-class iOS and Android applications. We work closely with the product, server engineering, design, marketing, and customer support teams to create new product experiences for our customers. Our goal is to provide our customers with a seamless mobile experience that makes it easy to access their money. Engineers joining the mobile team must have a solid focus on user experience and an understanding of mobile-specific issues, ranging from network usage to battery life. The mobile engineering team is the most customer-facing group and has a significant impact on the customer's impression of our company., * Collaborate with the product and design team to develop innovative user experiences and features.

• Design and implement new APIs with our server engineering team to communicate with the mobile applications
• Develop a scalable mobile architecture that enables the organization to remain agile as it expands.
• Drive decisions on the strategies and methodologies used in mobile app development and testing at EarnIn
• Create Unit and Automation (user interface) Tests to ensure the new code does not break existing features and works as specified by the product requirements.
• Create and monitor analytics to demonstrate the effectiveness of new and existing features in assisting customers.
• Drive cross-platform ownership of feature development, ensuring fungibility across teams to maintain a consistent user experience.
• Lead prototype-first and spec-driven development initiatives, partnering closely with PMs and EMs to define technical specifications and build early-stage prototypes.

Do you have experience in UI implementation?, Do you have a Bachelor's degree?, * Bachelor's (or higher, e.g., MS, or PhD) in Computer Science or a related technical field involving coding or equivalent technical experience

• 4+ years of industry experience with deep ownership and expertise in building, shipping, and maintaining Android applications at scale
• Fluency in Kotlin, with a strong grasp of reactive & functional paradigms (Coroutines/Flow, RxJava)
• Proven experience with modern Android app architectures (MVVM, MVI, MVP, Clean Architecture) and Jetpack components
• Deep understanding of Android UI frameworks, including XML layouts and Jetpack Compose
• Hands-on knowledge of software engineering best practices across the full SDLC: coding standards, code reviews, Git workflows, CI/CD pipelines, automated testing, and mobile release operations
• Familiarity with identity verification, authentication, and authorization protocols
• Deep expertise in Android development, with a strong commitment to cross-platform ownership and familiarity with other frontend platforms (e.g., iOS, web or Kotlin Multi-Platform) to facilitate seamless feature parity and fungibility.
• Experience in AI-integrated mobile development, including leveraging AI tools for spec-driven development and prototyping.
• Strong ability to collaborate with Product Managers and Engineering Managers early in the development lifecycle to define technical specifications and build functional prototypes.
• Experience using AI-assisted development tools (e.g., GitHub Copilot, Cursor, ChatGPT, or similar tools) as part of your software development workflow

The Mountain View base salary range for this full-time position is $228,000-$279,000, plus equity and benefits. Our salary ranges are determined by role, level, and location. This is a hybrid position in Mountain View that requires in-office work 2 days a week.

As one of the first pioneers of earned wage access, our passion at EarnIn is building products that deliver real-time financial flexibility for those with the unique needs of living paycheck to paycheck. Our community members access their earnings as they earn them, with options to spend, save, and grow their money without mandatory fees, interest rates, or credit checks. We're fortunate to have an incredibly experienced leadership team, combined with world-class funding partners like A16Z, Matrix Partners, DST, Ribbit Capital, and a very healthy core business with a tremendous runway. We're growing fast and are excited to continue bringing world-class talent onboard to help shape the next chapter of our growth journey.