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Sigi Technologies
Hire Flutter Developers
Flutter engineers who ship one codebase to iOS and Android — the same stack behind our warehouse, booking, courier and marketplace apps already in the stores.
Trusted by startups and established businesses worldwide
Glenshire
Allfor Care
3DLogistiX
Antrak
Busy Bean
Recognized & reviewed on
Flutter Developers from Sigi Technologies, in brief
Flutter engineers who ship one codebase to iOS and Android — the same stack behind our warehouse, booking, courier and marketplace apps already in the stores.
- What you get
- Flutter Developers who embed in your team on a staff-augmentation basis — working in your tools, your cadence and your review standards.
- What they are hired to move
- Two platforms from one team · Store-ready releases · Apps that work in the field
- How it works
- You brief us, we send a vetted shortlist within 3 days, you interview the people you want, and you start on a two-week trial before committing.
- Where we are
- Headquartered in Lahore, Pakistan, with clients in the UK, the US and worldwide.
- Recognition
- TechBehemoths 2025 Award Winner — Custom Software Development, React.js Development and WordPress Development. Reviewed on Clutch, Sortlist, GoodFirms and Trustpilot.
- Sigi Technologies
- 180+ skilled software engineers delivering excellence · 10+ years of dedicated industry experience · 200+ successful software development projects · 80+ global clients
What a Flutter developer is hired to move
Two platforms from one team
iOS and Android ship together from a single Dart codebase, without a second native squad.
Store-ready releases
Builds, signing, TestFlight and Play tracks handled so submission is a checklist, not a surprise.
Apps that work in the field
Offline-first data, background sync, maps and device features for drivers, operators and customers.
Hire Flutter Developers for Apps That Reach the Store on Time
One of the roles under Hire Developers. Our Flutter developers work in your repository and your release train — feature branches, reviews, CI, store submission — so both platforms move without a second hiring round.
Flutter: quick to reach a first screen, harder to keep smooth once the app has offline data, maps, payments and three user roles. That second half — state, sync, native integrations and release discipline — is what we are staffed for.
Mobile leads usually bring in Flutter developers when a native team can only cover one platform, a store deadline is fixed, or an existing Flutter app needs stability work before the next version.
Key milestones
180+
Skilled software engineers delivering excellence
10+
Years of dedicated industry experience
200+
Successful software development projects
80+
Global clients
Our Flutter Developer Services
The Flutter engineers we place own the app end to end — features, releases and the native edges — the way an in-house mobile hire would.
Cross-platform feature delivery
Screens, navigation and business logic shipped once for iOS and Android, with platform-specific polish where it matters.
State management and architecture
Riverpod, Bloc or Provider chosen for the app’s complexity, with clean separation between UI, state and data layers.
Offline-first data and sync
Local storage, queued writes and conflict handling so drivers, field staff and customers keep working without signal.
Native integrations and device features
Maps, GPS, camera, push notifications, Bluetooth printers and payment SDKs bridged into the Flutter app.
Backend and real-time integration
REST and WebSocket integration with Node.js backends, Firebase messaging and third-party APIs.
Testing and store releases
Widget and integration tests, CI builds, code signing, TestFlight and Play Console submission handled as routine.
Signals It Is Time to Add
Flutter Developers
Mobile leads usually bring in Flutter developers when one of these is true.
An iOS-only or Android-only team leaves half the market waiting; one Flutter team covers both.
Submission, review and release discipline need an owner before the date, not after a rejection.
Crashes, janky lists and tangled state need architecture and testing work, not more features on top.
Customer, driver, merchant or operator apps that must stay consistent from one shared codebase.
Warehouses, vehicles and rural areas need offline-first design from the start.
You need vetted Flutter hands inside weeks, embedded in your repo and release cadence.
Flutter apps we have shipped
Flutter is our production mobile stack, not a slide
Several products in our case studies run on Flutter in the app stores today — a warehouse operator app, a salon booking app, courier and delivery apps, and a multi-country food and grocery platform with customer, merchant and driver apps on one backend. We cite that delivered work; we do not invent download counts or ratings.
3DLogistiX warehouse platform
Flutter operator app alongside multi-tenant web dashboards for a warehouse management system.
Read the case study →Trim salon & barber booking
Customer and partner booking apps built in Flutter for on-demand grooming.
Read the case study →Bix delivery courier app
Customer, driver and admin surfaces with live tracking for a courier platform.
Read the case study →
Ship Both Platforms From One Flutter Team
Brief us on the app, the roles it serves and the next store date. We send a vetted shortlist within 3 days, you interview, and your Flutter developer starts on a two-week trial inside your repo.
Flutter Developers by App Type
Hire Developers places Flutter talent by the kind of app you are shipping, because a field operations app and a consumer booking app stress different skills.
Operations and logistics apps
Warehouse, courier and delivery apps with scanning, tracking, offline data and driver workflows — as on 3DLogistiX and Bix.
Booking and on-demand apps
Customer and provider apps with scheduling, payments and notifications — as on Trim.
Multi-role marketplaces
Customer, merchant and driver apps sharing one backend and one design language — as on our food and grocery platform.
How we work
Working In Your Repo
Embedded engineers only pay off when they operate inside your delivery system rather than beside it.
Your review bar and release train
Pull requests, code owners, TestFlight and Play tracks run the way your team already runs them.
Your sprint and store calendar
Estimates, acceptance criteria and submission dates kept visible so releases are planned, not hoped for.
What Changes
After the First Release
A Flutter developer should make both platforms move together without doubling the mobile bill.
One backlog, one codebase, one release — feature parity stops being a separate project.
Architecture, testing and performance work applied where users feel it.
Signing, builds and review requirements handled before the date, not discovered at submit.
Queued sync and local data keep drivers and operators productive without signal.
Start With One Flutter Developer On One Release
One Flutter developer on the next release is the usual starting point; a second seat follows once the first version ships to both stores cleanly. Taking over an existing Flutter app mid-flight — to stabilise it, add a user role or get it through review — is one of our most common briefs.
- Courier, delivery and logistics apps
- Booking and on-demand apps
- Multi-role marketplace apps
- Warehouse and field operations apps
Brands and organizations that trust our delivery
Glenshire
Allfor Care
3DLogistiX
Antrak
Busy Bean
Glenshire
Allfor Care
3DLogistiX
Antrak
Busy Bean
Related client work
Related client work in this discipline.
Projects > Construction
My Dormot Construction Super App: How Sigi Built It
How Sigi built My Dormot as a modular construction super app—materials ordering, contractor quotes, scheduling, and admin on one shared order model.
My Dormot
Projects > Logistics
Antrak: On-Demand Courier Platform with Real-Time Dispatch
Flutter customer and driver apps, a radius-based job feed, Stripe payments and an admin dashboard for pricing and zones — the on-demand courier platform Sigi built for Antrak in the UK.
Antrak
Projects > On-Demand
ServiPR: Puerto Rico’s On-Demand Services Marketplace App
Sigi built ServiPR’s customer app, bilingual provider app, and admin panel—Stripe and Apple Pay payments, staff scheduling, and in-app chat—now live on iOS and Android across Puerto Rico.
ServiPR Ltd.
Projects > On-Demand
Just Dry Cleans: On-Demand Laundry App with Doorstep Pickup
Customer app on iOS and Android, an agent app with proof of delivery at pickup and drop-off, an admin panel with expandable zones, and Stripe payments settled against the agent’s final invoice.
Just Dry Cleans
Projects > Food & Grocery
Food & Grocery Delivery Platform: Customer, Merchant, and Driver Apps
Flutter customer, merchant, and driver apps on one Node.js backend, with group ordering, loyalty credits, and payments routed to Adyen, Stripe, or PayPal by country.
Undisclosed client
Projects > Fitness
LinMo: A Fitness Community App for Members, Coaches and Clubs
Sigi built LinMo’s Flutter apps and Node.js backend so members discover nearby sports groups and book classes while coaches and clubs schedule events, manage capacity, and collect payments.
LinMo (Liveliness Sports S.L)
How we staff Flutter roles
Ways to Engage
Match the model to the app: a standing seat for continuous releases, a specialist for a stabilisation or migration push, or a mobile pod when backend and QA have to move with it.
Dedicated Flutter Developer
A standing seat owning features and releases across both platforms.
Stabilisation or Migration Specialist
Time-boxed help to rescue a fragile Flutter app or move a native app to one codebase.
Mobile Pod
Flutter plus Node.js backend and QA for apps with real-time features, payments or several user roles.
Questions Mobile Leads Ask
When you need both platforms from one team, share most of the UI and logic, and the app does not depend on bleeding-edge platform APIs. For most products in logistics, booking and marketplaces it is the pragmatic default; we will tell you when native is the better call.
Both are on our bench. We lean to Flutter for consistent rendering across devices and heavier custom UI, and React Native where a team already lives in React and wants to share knowledge. We choose per product, not per preference.
Yes. Taking over an existing Flutter app mid-flight — to stabilise it, add a user role or get it through store review — is one of our most common briefs.
Yes. Our shipped Flutter apps integrate Google Maps, Firebase messaging, Stripe and other payment SDKs, and Bluetooth receipt printers via platform channels and maintained plugins.
Yes. Signing, builds, TestFlight and Play tracks, review guidelines and staged rollouts are part of the role, not an extra.
If you need it. Several of our Flutter apps run on Node.js backends we also built; a Flutter developer can be paired with a Node.js engineer as a small pod.
Yes. One Flutter developer on the next release is the usual starting point; a second seat follows once the first version ships to both stores cleanly.
Every candidate is screened by a senior mobile engineer on real Dart code, state architecture and a release checklist — not CVs alone. We send a vetted shortlist within 3 days, you interview the people you want, and you can start on a two-week trial inside your repo before committing.