OverviewWe need an experienced Android/React Native developer to make our production app fully compliant with Google Play's 16 KB memory page size requirement for apps targeting Android 15+ (SDK 35).
Google Play Console has already flagged 19 non-compliant .so files in our latest production build. We have a full mapping of each library to its source package (provided below).

Our Stack

• React Native with Expo SDK 52
• Hermes JS engine (enabled)
• AGP resolved via RN 0.76 version catalog)
• Gradle 8.10.2, NDK

* targetSdkVersion 35, compileSdkVersion 35


• CI/CD: Codemagic

Flagged Libraries (from Google Play Console)
Google Play has identified 19 .

so files across arm64-v8a and x86_64 that are not 16 KB page aligned:

React Native Core / Hermes (5 files):
* — Hermes JS engine
* — Hermes tooling
* — NDK C++ standard library
* — React Native core
* — JavaScript Interface (Meta)

Facebook/Meta — Fresco Image Pipeline (5 files):
* — Facebook JNI bindings
* — Fresco GIF support
* — Fresco image pipeline
* libstatic- — Fresco WebP support
* libnative- — Fresco image transcoder

Expo Modules (2 files):
* libexpo-modules- — expo-modules-core
* — expo-image 2.0.7

Third-Party npm Packages (7 files):
* / — react-native-reanimated 3.16.7
* — react-native-mmkv 2.12.2
* — react-native-quick-crypto 0.7.17
* — react-native-screens 4.10.0
* libanimation-decoder- — lottie-react-native 7.1.0
* libnative- — @shopify/flash-list 1.8.3

Scope of Work


• Determine the fix strategy for each flagged library — Whether to upgrade the dependency, patch the native build, add linker flags (-Wl,-z,max-page-size=16384), or upgrade NDK/build tools.
• Apply fixes — Upgrade packages, patch build configs, or apply whatever is needed to make all 19 .so files 16 KB aligned.
• Verify alignment — Run zipalign -c -P 16 and/or Google's on the release AAB to confirm all .so files pass.
• Test on 16 KB emulator — Set up an Android 15 emulator with 16 KB page size enabled, install the app, and verify it launches and runs without crashes.
• Document changes — Provide a brief summary of what was upgraded/changed and any libraries that need upstream fixes or workarounds.

Deliverables


• A release AAB that passes zipalign -c -P 16 with zero flagged libraries
• All changes committed to a branch in our GitHub repo (we'll provide access)
• A short written summary covering: What was changed per library

Any dependency upgrades performed
Any known risks or follow-up items

Additional Native Modules in the App
Beyond the flagged libraries, the app also uses these native modules that should be verified:
@intercom/intercom-react-native 8.7.0
@stripe/stripe-react-native 0.38.6
react-native-keychain 10.0.0
react-native-gesture-handler 2.25.0
react-native-maps 1.18.4
react-native-fbsdk-next 13.4.1
@sentry/react-native
Custom SDK (bundled locally)
Custom Adjoe SDK bundled locally)

Ideal Candidate


• Experience with React Native + Expo native Android builds
• Familiarity with Android NDK, ELF binary alignment, and shared library toolchains
• Has previously migrated an app to 16 KB page size compliance
• Can set up and test on Android 15 16 KB page size emulator images

Contract duration of less than 1 month.

Mandatory skills:
Android, React Native, Android App Development