Staff Mobile Engineer - Android

About the role

THE OPPORTUNITY This Staff Mobile Engineer, Android position works onsite in our Alameda, CA location for Lingo. As a Staff Mobile Engineer, Android at Lingo, you will lead the design and development of the Android applications and shared mobile platform components that power our biosensing experience.

Responsibilities

• Lead the design and development of complex Android applications and shared mobile platform components (SDKs, libraries, tooling).
• Define and drive modern Android architecture standards, including Kotlin, Jetpack Compose, Coroutines/Flow, MVVM/MVI, and modularization.
• Ensure scalable, maintainable, and testable code through strong design patterns and best practices; optimize app performance, reliability, and scalability, including startup time, ANRs, and crash-free sessions.
• Own large, ambiguous initiatives from concept to production, establishing long-term Android technical strategy including modularization, CI/CD, build optimization, and observability.
• Partner with backend teams to design efficient mobile APIs and offline-first solutions.
• Lead the full development lifecycle : architecture, coding, testing, CI/CD, release management, monitoring, and maintenance.
• Champion automated testing, code quality standards, and secure mobile development practices.
• Implement strong observability practices such as crash analytics and performance monitoring.
• Integrate AI/ML capabilities into Android applications, including on-device and cloud-powered solutions, to deliver intelligent, personalized, mobile experiences.
• Lead Lingo's migration from React Native to fully native Android, owning migration strategy, sequencing, and architecture decisions, including how to bridge React Native and native code during the transition, and how to preserve feature parity and app stability throughout.
• Evaluate existing React Native components and screens for migration complexity, define native module and screen replacement patterns, and set the technical standard the rest of the Android team follows during the transition.
• Mentor senior engineers and provide architectural guidance across Android teams.
• Lead design reviews and influence technical decisions across mobile, backend, and product teams.
• Translate complex business problems into scalable technical solutions and communicate effectively with both technical and non-technical stakeholders.

Requirements

• Bachelor’s degree in computer science, Systems Engineering, or a related