Mobile Platform Team. Grab.

The talk in Russian is on Youtube https://www.youtube.com/watch?v=XdoTyQsDo2I&feature=youtu.be

Transcript

1. Mobile Platform Team. The pillars of Grab.
2. 1. Taxi 2. Food delivery 3. Bike rent 4. Payments 5. Delivery 6. Hotels, tickets 7. Insurance, investments
3. - Food - Payment - Transport - Express - etc... - Riblet - MVVM - MVP - MVC - etc... ‼‼ App size… Build time Tech Families
4. Mobile Platform Team “Team is at Grab responsible to lay down and continuously improve the software foundations and infrastructure components that all Grab mobile apps are built upon. “ © LinkedIn
6. What are we doing.... Architecture CI Quality Mobile Platform Team - base components (aka Kits) - build tools (mainframer) - ∞ build time ∞ - support multiple apps - base modules (100+) - dependencies & libraries - CI support - test coverage - migration platform API, plugins, XCode - documentation, WIKI, RFC
7. - Weekly Delivery Sync - Slack channel - Feature Request - Open Issues - RFC before delivering Team interaction
8. Managers Planning Team intro OKR Where does the work come from?
9. Architecture pod Delivering features faster. #1 Stop feature delivering #2 Cross-Platform Development Flutter 2018: WebView, ReactNative
10. P0: Flutter in passenger App. • Native & non-native communication • Impact: ◦ app size ▪ Android 6MB ▪ iOS 10MB ◦ app start time ▪ Android - ▪ iOS 200ms • Timing Architecture pod
11. • Integration into passenger app • Flutter Engine: shared or multi • Flutter Architecture & UI guidelines • Native Bridges • Navigation • Testing • Documentation Architecture pod
12. CI pod • 600+ modules • Build time: ◦ Android: 11 mins ◦ iOS: 36mins • Gradle • Setup Bazel & Gradle • Migrate gradle scripts • Databinding • Remote cache • Modules migration
13. CI pod Mainframer Remote execution 1. local files to remote machine 2. build process 3. artifacts to local machine Problems solved 1. build is really FAST ~ 60% 2. no hard work on laptops
14. How to evaluate performance? OKR: • build time • app size • development time • test coverage • release train
15. “ Nobody likes you Linters & Restrictions: - deprecated code is forbidden - GIFs, PNGs are forbidden - locked Application file - evaluation for third-party libs
16. On-call engineer • Open Production issues • CI monitoring ◦ green master • Monitor dashboards ◦ build time degradation ◦ app size degradation ◦ CI failures • Crashes ◦ New crash ◦ Velocity crash ◦ Regression crash • Support
17. Thank you!