Lead Android Developer
Ruby LabsAbout us
Ruby Labs is a leading tech company that creates and operates innovative consumer products. We offer a diverse range of opportunities across the health, education, and entertainment industries. Our innovative teams are driving the future of consumer-led products, and we're always looking for passionate individuals to join us. Learn more about our story at: https://rubylabs.com/about-us/
About the role
As a Lead Android Engineer, you will own the technical direction of our Android platform, set engineering standards, and mentor a team of engineers while remaining hands-on with the codebase. You will drive architecture decisions, ensure scalability and performance, and partner with product and cross-functional leadership to shape the mobile roadmap.
Key Responsibilities
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.
Qualifications
8+ years of Android development experience, including 2+ years in a lead or tech-lead capacity.
Proven track record shipping and scaling B2C subscription-based apps at significant user volume.
Deep expertise in Kotlin, coroutines/Flow, and advanced language features; ability to set idiomatic standards across a team.
Mastery of Google Play Billing at scale, subscription monetization architecture, entitlement validation, RTDN pipelines, paywall experimentation, and pricing/offer strategy.
Strong architectural leadership: large-scale multi-module Gradle architectures, build optimization, design systems, and cross-team API contracts.
Experience owning CI/CD at scale (GitHub Actions, Bitrise, Gitlab CI), automated release trains, staged rollouts, and signing/key management.
Deep performance engineering: startup optimization, Baseline Profiles, memory/jank diagnosis, and R8/ProGuard optimization.
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