Your workflow and tools
Work in your Jira, Linear, or Azure DevOps workflow, and collaborate in Slack or Teams with product, backend, and QA.
Sigi Technologies
Hire Mobile App Developers
Hire mobile app developers to ship stable iOS/Android releases and deliver features without increasing app-store risk.
Trusted by startups and established businesses worldwide
Glenshire
Allfor Care
3DLogistiX
Antrak
Busy Bean
Recognized & reviewed on
What a mobile developer is hired to move
App features that reach stores
iOS and Android work that respects platform patterns and release gates.
Mobile flows people finish
Offline, permissions, and device realities handled — not stretched web layouts.
Stability next to velocity
Crash rates, store feedback, and CI treated as part of delivery.
Hire Mobile App Developers for Stable Releases and Predictable Delivery
This role is part of Hire Developers. Mobile quality is visible in crash rates, store reviews, and release reliability.
We embed mobile engineers who can own delivery across features, stability, performance, and release workflows.
Related capacity lives on Hire Web Developers and Hire Backend Developers.
Key milestones
180+
Skilled software engineers delivering excellence
10+
Years of dedicated industry experience
200+
Successful software development projects
80+
Global clients
Our Mobile App Developer Services
We embed mobile engineers who can own delivery across features, stability, performance, and release workflows.
Mobile feature delivery
New screens, flows, and feature modules, including workflow-driven apps for approvals, forms, field operations, and internal tools.
APIs, offline, and routing
API integration, data handling, offline-friendly patterns, push notifications, deep links, and in-app routing.
Stability and crash reduction
Crash fixes, store-readiness validation, defensive patterns for unreliable networks, and release discipline with versioning and hotfixes.
Performance and mobile UX
Faster rendering, memory and network efficiency, pagination, caching, background sync, and startup and heavy-screen optimization.
Architecture and maintainability
Refactoring for modules and structure, state management cleanup, better testability, and documentation that reduces knowledge dependency.
Quality that reduces regressions
PR-based delivery, unit and critical-flow UI testing, QA collaboration, and CI-friendly builds that reduce release-day surprises.
When Teams Hire
Mobile App Developers
Organizations typically hire mobile developers when release stability, platform capacity, or implementation lag starts blocking the roadmap.
Crashes, regressions, and store rejection risk are making each release harder to ship with confidence.
The roadmap is waiting on native platform capacity that the current team cannot cover.
Flutter or React Native capacity is needed without standing up a permanent mobile organization.
Slow screens, memory usage, and battery issues are hurting how people stay in the app.
Architecture, modules, and state handling are making every feature slower and riskier.
You need stronger ownership for store releases and production readiness, or backend APIs are shipping while mobile implementation falls behind.
Mobile apps we have shipped
Published companion and booking apps — real store-facing work
Sigi mobile engineers have shipped client apps in production. These case studies are what we cite; we do not invent download or rating metrics.
Muzziball companion app
Product UX and companion-app delivery for a sensory hardware product.
Read the case study →Woowlook salon & spa booking
Two-sided booking product designed and built as customer and seller apps.
Read the case study →Kwik eMart grocery platform
Multi-sided grocery platform across customer, store, and operations surfaces.
Read the case study →
Hire Mobile App Developers Without Long Hiring Cycles
If mobile delivery is slowing your roadmap or release stability is becoming a risk, we’ll embed mobile app developers into your team and start shipping in your cadence.
Mobile App Developers by Platform and Framework
Hire Developers includes native and cross-platform talent because many teams search by the stack already chosen.
iOS and Swift
Native iOS delivery with Swift, plus Objective-C support where a legacy codebase still needs it.
Android and Kotlin
Native Android delivery with Kotlin, plus Java Android support for existing platforms where required.
Flutter and React Native
Flutter for cross-platform apps with strong UI control. React Native for cross-platform delivery in React ecosystems.
How we work
How We WorkInside Your Team
Mobile augmentation works best when developers operate in your workflow and release discipline.
Your repo and release checklist
Ship in your repo using your branching strategy and PR reviews, aligned to your Definition of Done and release checklist.
Visible cadence and handover
Deliver in a sprint-based or weekly cadence with visible progress, and document decisions so knowledge dependency stays low.
Common Outcomes
Teams Expect
Mobile work should make releases more stable and features faster to ship, without trading away crash rates or store confidence.
Fewer regressions and store issues, with stronger production reliability and lower crash rates.
Capacity to ship screens and flows without sacrificing mobile performance.
Smoother UX and better app performance help people stay in the product.
Modules, patterns, and structure that reduce long-term maintenance cost.
Hire Mobile App Developers Without Long Hiring Cycles
Teams often start with one mobile developer and scale after delivery fit is proven. Many engagements start with stabilization, then shift into feature delivery once release confidence improves.
- Native iOS and Android delivery
- Flutter and React Native
- Crash reduction and store-ready releases
- App store submissions and release workflows
Brands and organizations that trust our delivery
Glenshire
Allfor Care
3DLogistiX
Antrak
Busy Bean
Glenshire
Allfor Care
3DLogistiX
Antrak
Busy Bean
Related client work
Case studies from engagements where mobile engineers we placed shaped the outcome.
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 mobile roles
Engagement Options
Choose a model based on whether you need ongoing app delivery, a specific platform, or a small pod.
Dedicated Mobile App Developer
Best for continuous feature delivery and ongoing app maintenance.
Platform Specific Mobile Developer
Hire based on your stack: iOS developers, Android developers, Flutter developers, or React Native developers.
Pod Based Mobile Delivery
Higher output with fewer regressions: mobile plus QA, UI/UX, or backend support for integration-heavy delivery.
Frequently Asked Questions
Yes. We staff native iOS/Android developers and cross-platform Flutter/React Native developers based on your app.
Yes. Many engagements start with stabilization, then shift into feature delivery once release confidence improves.
Yes. We align to your release checklist and support store-readiness and reliable release workflows.
Yes. Teams often start with one developer and scale after delivery fit is proven.