Lead Android Developer

Ruby Labs is a tech company that creates and operates consumer products across health, education, and entertainment industries.

• 8+ years of Android development experience, including 2+ years in a lead capacity.
• Proven track record shipping and scaling B2C subscription-based apps.
• Deep expertise in Kotlin, coroutines/Flow, and advanced language features.
• Mastery of Google Play Billing, subscription monetization architecture, entitlement validation, RTDN pipelines, paywall experimentation, and pricing strategy.
• Strong architectural leadership with multi-module Gradle architectures, build optimization, design systems, and cross-team API contracts.
• Experience owning CI/CD at scale using GitHub Actions, Bitrise, and Gitlab CI.
• Deep performance engineering skills: startup optimization, Baseline Profiles, memory/jank diagnosis, and R8/ProGuard optimization.
• Comprehensive testing strategy ownership: unit, UI (Compose/Espresso), and integration testing.
• Experience integrating AI-driven product features and championing AI-assisted development practices.
• Strong technical leadership, mentorship, stakeholder communication, and cross-functional collaboration skills.

• Define and own the technical vision, architecture, and long-term roadmap for the Android platform.
• Lead, mentor, and grow a team of Android engineers; set coding standards and review practices.
• Make high-impact architectural decisions and drive modularization/scalability across the codebase.
• Own CI/CD strategy, release management, and deployment reliability.
• Partner with product and design leadership to translate business goals into technical execution.
• Establish observability, performance budgets, and quality gates.
• Remain hands-on: contribute to critical features and complex problem-solving.

Applicants must be located within approximately ± 4 hours of Central European Time (CET) to ensure collaboration during working hours.