That second screening pass hinges on this section, the last gate before an interview gets put on the
calendar. Here is where a recruiter finally eases off, and even then your current role still drives
roughly 95% of the decision.
Stands to reason: nothing proves what you can build and ship today like the job you hold now. To earn
the "yes", it needs to hit the
full React Native Developer role profile, one bullet per area you listed under Domain
Expertise above. And point every bullet at something you shipped, not a task somebody handed you.
1
UI & Feature Development
This is the bread and butter, and where most of the screen lands. Show the feature or screen you
built, the framework you built it in, and what it let users do. Name the feature, not
"worked on the app".
Techniques
Declarative UI
Navigation & deep links
State-driven views
Accessibility
Tools
React Native, Expo
Reanimated
Storyboards
Metrics
Feature adoption
Screens shipped
Conversion lift
2
App Architecture & Modularization
The structure under the screens. Show the pattern you chose, how you split the app into modules,
and the alternative you ruled out. A pattern you can justify reads as real judgment;
"clean architecture" on its own is just a buzzword.
Techniques
MVVM / MVI / Clean
Modularization
Dependency injection
Unidirectional data flow
Tools
Redux Toolkit
React Query
Hilt / Dagger
Metrics
Build time cut
Modules extracted
Merge conflicts down
3
Networking, Persistence & State
Where the app meets the backend and the device. Show how you fetch, cache, and sync data, and how
the app holds up offline or on a flaky connection. The number that lands is reliability, not how
many endpoints you called.
Techniques
REST / GraphQL clients
Caching & pagination
Offline-first sync
Conflict resolution
Tools
URLSession, Retrofit
MMKV, WatermelonDB
Realm, SQLite
Metrics
Sync reliability
Offline coverage
4
Performance, Memory & App Size
A laggy app gets uninstalled, and recruiters know it. Show the startup time, frame rate, memory,
or app size you set a target for and beat. This is the section for hard numbers, and one of the
loudest signals you can put on the page.
Techniques
Startup & launch profiling
Frame-rate / jank tuning
Memory & leak hunting
App-size reduction
Tools
Instruments
Android Profiler
Baseline Profiles
Metrics
Cold-start time
Jank-free frames
App size (MB)
5
Testing & Quality
React Native bugs ship to millions, though OTA updates soften that. Show the tests you wrote, the
coverage you held, and the regressions you caught before release. Name the suite and what it
protected, not "wrote unit tests".
Techniques
Unit & UI testing
Snapshot tests
Test pyramid
Flaky-test triage
Tools
Jest, Detox
Espresso
Maestro
Metrics
Coverage %
Regressions caught
Test runtime
6
CI/CD, Release & Distribution
This is the part backend engineers never touch: getting a build through review and out to the
stores. Show the pipeline you built, the rollout you ran, and how you took the pain out of
releasing. Name the cadence you got to, not "managed releases".
Techniques
Build automation
Phased / staged rollouts
Code signing & provisioning
Beta distribution
Tools
Fastlane
Xcode Cloud, GitHub Actions
TestFlight, Play Console
Metrics
Release frequency
Release time cut
Rollback rate
7
Crash, Stability & Analytics
Once it ships, your job is keeping the app stable and knowing what users actually do. Show the
crash-free rate you held, a production issue you traced, and the metric you instrumented. Tie it
to a number leadership cares about.
Techniques
Crash triage & symbolication
Production monitoring
Event instrumentation
A/B testing
Tools
Crashlytics, Firebase
Sentry
Datadog
Metrics
Crash-free sessions
MTTR
Retention
8
Collaboration & Platform Craft
React Native ships nothing alone. Show how you worked with Design, Back-End, and Product, and the
platform details you got right: push, deep links, permissions, privacy prompts. Name the
cross-team work and what it unblocked.
Techniques
Design-system work
API contract reviews
Privacy & permissions
App-review compliance
Tools
Figma handoff
Push (APNs, FCM)
App Tracking Transparency
Metrics
Cross-team cycle time
Review rejections down
Privacy compliance