Sr Staff Engineer - Mobile Rider

About The Role

This role sits at the foundation of one of the worlds most-used mobile apps, defining the architectural patterns, build systems, and platform primitives that hundreds of feature engineers rely on every day to ship to riders across 70+ countries. You will set technical direction for how the app is structured, delivered, and continuously improved - including how we ship to billions of devices in cost-sensitive emerging markets without compromising the experience for users on premium devices. The impact of this work is measured in faster developer velocity, smaller binaries, faster apps, and the ability to evolve the product without waiting on app-store release cycles.

What the Candidate Will Do?

• Own architectural direction for modularization, build system, dependency management, and componentization across a multi-team mobile monorepo.
• Drive app-size and performance initiatives - including market-specific app binaries via dynamic feature modules - that unlock growth in cost-sensitive markets without compromising the premium experience.
• Lead cross-platform rendering and code-push initiatives that enable feature teams to ship faster and reduce reliance on app-store release cycles.
• Partner cross-geography with platform, product, and feature engineering leads (Bay Area, Bangalore, Amsterdam) to land decisions that scale to hundreds of engineers.
• Raise the technical bar through design review, code review, and mentorship of senior ICs; represent mobile-platform thinking at L6+ engineering forums.
  
  

• 12+ years of mobile engineering experience with deep production expertise in Kotlin (Android) or Swift (iOS) and working familiarity with the other platform.
• Track record of leading large-scale mobile architecture decisions - modularization, build systems (Bazel or equivalent), dependency management, app-size optimization, or dynamic delivery - at consumer apps with 50M+ MAU.
• Proven ability to set technical strategy across multiple teams - write design docs that ship, drive consensus among senior engineers, and influence engineering leadership without direct authority.
  
  

• Has owned a platform or infrastructure layer that other feature teams build on (not feature work) - modularization frameworks, build-system migrations, OTA / code-push systems, feature flagging at the binary level, or mobile A/B-test infrastructure.
• Background optimizing apps for emerging markets - sub 40MB binaries, 2G/3G networks, 1GB RAM devices - with measurable wins on install rate, retention, or crash-free sessions.
• Has driven a major architectural migration end-to-end (monolith → modular, native → cross-platform for select surfaces, or single-binary → market-specific dynamic delivery) and shipped it to 100% of users.
• Cross-platform rendering framework experience (KMP, React Native, Flutter, or comparable in-house equivalents) - valuable for evaluating and integrating cross-platform tooling.
• Active in the mobile engineering community - speaker at Droidcon / AppDevCon, OSS contributor, or technical writer on mobile architecture.