01Owns
One codebase, two stores
Builds features once for iOS and Android, and handles the places where platform behaviour differs, such as permissions, back navigation and notifications.
Hire · Cross-platform mobile
Hire Flutter Developers
Senior Flutter developers who join your team to ship one codebase to iOS and Android. Shortlisted engineers have already built a paid trial screen that covers state, offline behaviour, a native platform call and a signed release build.
Paid work sample on a real screen
Senior and lead levels only
Release builds and store checklists included
On your team
What a Flutter developer owns on your team.
02Owns
Widgets and the design system
Turns designs into composable widgets with shared themes and spacing, so new screens look consistent without copy-paste.
03Owns
State and offline behaviour
Chooses and applies a state approach such as Riverpod or Bloc, and keeps screens usable on poor connections with local storage and sync.
04Owns
Native features
Uses well-maintained plugins first and writes platform channels in Swift or Kotlin when a feature has no reliable plugin.
05Owns
Release pipeline
Owns flavours, signing, build numbers and automated builds, and works through store review checklists before submission.
Spotting a strong Flutter developer
Flutter makes the first version of an app fast to build, so many candidates can show attractive screens. The difference shows up later: in how state is organised once the app has twenty screens, how it behaves offline, and how cleanly it handles the places where iOS and Android differ. Ask a candidate how their last app handled a permission that the user had permanently denied.
Look for someone who keeps business logic out of widgets. When logic lives in testable classes, features can change without breaking screens, and tests run without a device.
Vetting
Skills we test before a Flutter developer joins.
01Tested
Dart and async
Sound null safety, Futures and Streams, cancelling work when a screen closes, and moving heavy work to isolates.
02Tested
State management
Can justify Riverpod, Bloc or Provider for your app’s size, and keeps business logic out of widgets so it can be tested.
03Tested
Performance and jank
Uses Flutter DevTools to find expensive rebuilds and frame drops, scopes rebuilds and uses const constructors where they help.
04Tested
Platform integration
Method channels, permission flows, deep links and push notifications on both platforms, including their failure cases.
05Tested
Local data
SQLite through Drift or similar, cache invalidation and conflict handling when offline edits sync back.
06Tested
Testing
Unit tests for logic, widget tests for screens, golden tests for visual regressions and integration tests for critical journeys.
Work sample
How the Flutter developer work sample runs.
- 01Step 1
Review a janky screen
The candidate gets a list screen that drops frames, finds the expensive rebuild with DevTools and fixes it.
- 02Step 2
Build a screen that works offline
They build a small screen that loads from an API, caches locally and shows clear offline and error states, with widget tests. The exercise fits inside one working day and is paid.
- 03Step 3
Call a native feature
They add a permission-gated feature, such as camera or location, handling denial and the permanently-denied state on both platforms.
- 04Step 4
Walk through a release
A short call on signing, flavours and the store checklist, explained for a product owner.
Levels
Flutter Developers: what changes at each level.
01Level 1
Senior
Ships features across both platforms within an existing architecture and reviews peers’ code.
02Level 2
Lead
Sets app architecture, state conventions, modularisation and CI, and owns release quality.
03Level 3
Mobile architect
Decides where Flutter should and should not be used, plans add-to-app integration with native code and long-term upgrade paths.
Senior, lead or mobile architect
A senior developer adds capacity to an app with a settled architecture. Choose a lead if the app has grown without conventions, builds are manual, or releases keep slipping. Choose an architect when the question is strategic: whether Flutter is the right choice at all, how to embed it in an existing native app, or how to plan major upgrades.
Other options
When to hire someone other than a Flutter developer.
01Consider
Your team already ships React
If your web team works in React and wants to share knowledge and code, a React Native developer is a closer fit.
Open register02Consider
Heavy native or hardware features
For AR, advanced camera pipelines or complex background work, native iOS and Android developers are safer.
Open register03Consider
A mobile team, not one specialist
If you need design, backend and QA alongside the app, hire a mobile app team rather than a single developer.
Open registerWhy we test on a real screen
A short paid task that loads data, caches it and survives losing the network tells you more than a quiz about widget lifecycles. Asking a candidate to fix a janky list with DevTools shows whether they measure before optimising. The release walkthrough checks the part many developers leave to someone else: signing, versioning and store review.
The first month
In the first week, aim for a small change that goes through your build pipeline to an internal testing track on both platforms. It proves signing, CI and review in one step. After that, hand over a feature with clear acceptance on both iOS and Android, including what happens offline and when permissions are refused.
FAQ
Questions to resolve before the build.
01Is Flutter a good choice for our app?
Flutter suits apps that need the same experience on iOS and Android with a custom design. If the app depends heavily on platform-specific features or the latest native UI on day one, native development may be safer. A lead or architect can assess this before you commit.
02Do your Flutter developers handle App Store and Play Store releases?
Yes. Signing, build flavours, versioning and the review checklists for both stores are part of the role, and the work sample includes a release walkthrough.
03Can a Flutter developer work in an app that is partly native?
Yes. Add-to-app setups and platform channels are common. For larger native modules we pair the Flutter developer with an iOS or Android specialist.
Works alongside
Roles a Flutter developer works best alongside.
01Pair with
iOS developers
For deep native features such as widgets, extensions or background processing that Flutter plugins do not cover well.
Open register02Pair with
Android developers
For device-specific behaviour, background services and native SDKs on Android.
Open register03Pair with
QA engineers
To test across a device matrix, OS versions and network conditions before each store release.
Open registerPrimary sources
References behind this page
Dated official documentation, standards, and research that support the factual claims on this page.
- 01Flutter documentation: Performance best practices
Official guidance on rebuild cost, rendering and avoiding jank.
- 02Flutter documentation: Writing platform-specific code
How platform channels connect Dart to Swift and Kotlin.
How to read this page
Scope, cost and timeline figures are planning guidance until confirmed in a written proposal. Diagrams and screens are illustrations, not client deliverables, and source-code rights and handover follow the signed agreement. See the delivery process and the full disclaimer.
Next decision
Turn the brief into an accepted product scope.
Define outcomes, constraints, evidence, rights and handover before delivery begins.
Commercial rights, repositories, environments, documentation, acceptance and handover remain contract-defined.