Hire Mobile App Developer

Mobile App
Upstaff provides access to expert mobile developers with proven experience in native (iOS & Android) and cross-platform (React Native, Flutter) development. Our team helps you engage skilled professionals to build scalable, high-performance apps for e-commerce, fintech, gaming, IoT, and more. Trust us for reliable, tailored solutions that deliver exceptional user experiences.
Mobile App

Meet Our Devs

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Android 6yr.
Java
Kotlin
Crashlytics
Dagger
DataBinding
Glide
Gson
Koin
OSMdroid
Retrofit
JSON
Jsoup
okHttp
Firebase
ObjectBox
SQLite
Firebase Cloud Messaging
Google Cloud Messaging
Android Jetpack
ButterKnife
Hilt
Room (Android Jetpack)
ViewBinding
BitBucket
Git
GitLab
SVN
Clean Architecture
MVC
MVVM
SOLID
Google Maps API
RESTful API
MVP
WebSockets
...

- Senior Android Engineer with 6+ years of commercial experience and strong organizational skills. - Proficient in Android development using Java, Kotlin, and libraries like Retrofit and Room. - Expert in methodologies like MVC, MVVM, Clean Architecture, and SOLID principles. - Comfortable working with REST API, version control tools like Git, and project management through MVP. - Upper-Intermediate English - Available ASAP

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Seniority Senior (5-10 years)
Location Ukraine
Android
OpenCV
Dagger2
Ktor
Firebase
Android Studio
Fastlane
FigJam
Figma
Jenkins
Jira
Miro
Slack
MVVM
MVI (Model-View-Intent)
Teamwork
...

- I am a self-taught Android developer with a passion for building scalable architecture and writing easily maintainable (deletable) code. - I am a big fan of DI frameworks like Dagger, Anvil, or Hilt. - I build apps out of passion outside of working hours, but lately, I have been exploring Ktor on the backend side and working on fully Compose Android applications. - From time to time, I also like to tinker with Figma. - I am passionate about the latest tech, hardware and security.

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Seniority Senior (5-10 years)
Location Ukraine
Android
Java
Kotlin
Crashlytics
Dagger
Kotlin Coroutines
Retrofit
okHttp
RxJava
Spring
Kibana
Firebase
Agile
Design patterns
SOLID
Android SDK
Android Studio
Jetpack Compose
Room (Android Jetpack)
API
GraphQL
Swagger
JetPack
Atlassian Confluence
Jira
Miro
Slack
BitBucket
Git
GitLab
Charles Proxy
JUnit
NUnit
Postman
Citrix
Figma
InVision
UX
iOS
Product Management
Sonarqube
...

- As an accomplished Android Engineer with six years of experience, I have a proven track record of developing high-quality Android applications. My passion lies in diving deep into the core development of a project and leaving my technical mark. I am eager to keep pace with the rapidly changing mobile world, and I embrace challenges with enthusiasm - My journey as a Software Engineer began during high school, and I have continued to grow and develop my skills ever since. I am dedicated to working hard and driving innovation in all of my projects. I am also a personable and friendly team player, and I thrive on the opportunity to collaborate with others and meet new people - Overall, I am committed to delivering exceptional results and making a positive impact on any project I work on - Upper-Intermediate English

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Seniority Senior (5-10 years)
Location Ukraine
Java
Kotlin
Android
Architecture Components
Data binding
Glide
Koin
Kotlin Coroutines
OSMdroid
Retrofit
Retrofit2
okHttp
RxJava2
Firebase
Google Services
Atlassian Confluence
Jira
BitBucket
Git
Cicerone
Google Play services
Room (Android Jetpack)
Clean Architecture
MVVM
SOLID
HTTP
HTTPS
MVP
Postman
RESTful API
Swagger
...

- Experienced Android Engineer with 6+ years in Java and Kotlin app development. - Proficient in Android development frameworks like Retrofit and Room (Android Jetpack). - Expertise in Clean Architecture, SOLID, MVVM principles, REST API, and HTTP. - Skilled in project management using Atlassian JIRA, Confluence, and Agile methodologies. - Upper intermediate English - Available ASAP

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Seniority Middle (3-5 years)
Location Rivne, Ukraine
Android 8yr.
Kotlin 4yr.
Coil
Kotlin Coroutines
iOS
MVVM
NUnit
Zeplin
PWA
...

- 8+ years of experience with Android Development - 4+ years of experience with Kotlin - Upper-Intermediate English

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Seniority Senior (5-10 years)
Location Portugal
Android 7yr.
Android SDK 7yr.
Java 7yr.
Kotlin 7yr.
Crashlytics 7yr.
Dagger 7yr.
Mockito 7yr.
Retrofit 7yr.
RxJava 7yr.
Realm 7yr.
Firebase Cloud Messaging 7yr.
Atlassian Trello 7yr.
Jira 7yr.
Cicerone 7yr.
Hilt 7yr.
Room (Android Jetpack) 7yr.
Clean Architecture 7yr.
Kanban 7yr.
MVVM 7yr.
Waterfall 7yr.
Google Maps API 7yr.
Linux 7yr.
Windows 7yr.
WebSockets 7yr.
Firebase Analytics 7yr.
Navigation 7yr.
Jetpack Compose 1yr.
Architecture Components
Dagger2
Data binding
DataBinding
Glide
Gson
Kotlin Coroutines
leakcanary
RxJava2
Firebase
BitBucket
Git
Cicerone navigation
MVC
Scrum
Facebook API
Facebook SDK
Figma
MVP
Sentry
sockets
Applanga
PlacesSDK
Protobuf
...

- Over 7 years of commercial experience in IT as an Android Developer; - Proficient in Java and Kotlin programming languages; - Strong knowledge of Object-Oriented Programming (OOP) principles; - Experienced in using Design patterns such as MVP and MVVM; - Skilled in using Android SDK and various libraries/frameworks including RxJava, Jetpack Compose, Dagger, Hilt, Room, Navigation, Google Maps, Firebase Analytics, Firebase Crashlytics, and Firebase Cloud Messaging; - Familiar with Clean Architecture and Retrofit for building robust and scalable applications; - Proficient in using source control systems like GIT and tracking systems like Jira and Trello; - Experienced in Agile development methodologies such as SCRUM and Kanban; - Upper-Intermediate level of spoken and written English; - Successfully delivered projects in various domains including in-store and online shopping, retail and distribution, taxi services, sports, and job search; - Strong attention to detail, logical thinking, and result-oriented mindset.

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Seniority Senior (5-10 years)
Location Germany
Android
Java
Kotlin
Crashlytics
Kotlin Coroutines
Retrofit
Agile
MVVM
Android SDK
API
Kotlin Flow
JetPack
Bamboo
BitBucket
GitHub
...

- 4 years of commercial experience with Kotlin - Intermediate English

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Seniority Middle (3-5 years)
Location Tashkent, Uzbekistan
Android
C
C++
Java
JavaScript
Kotlin
Python
Material UI
Firebase
Firebase Realtime Database
Android SDK
Atlassian Trello
Jira
Redmine
Clean Architecture
Design patterns
Kanban
MVC
MVVM
Scrum
Waterfall
Git
SVN
Linux
macOS
Windows
MVP
...

- 12 years of commercial experience in IT - Experience in developing applications using Kotlin, Java - Excellent knowledge of OOP - Experience in using Design patterns (MVVM, MVI, MVP) - Experience in using SQL/NoSQL databases - Good logical thinking, hard-working, self-learning, result oriented - Good attention to details. - Upper-Intermediate English - Availability starting from ASAP

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Seniority Senior (5-10 years)
Location Spain

Let’s set up a call to address your requirements and set up an account.

Talk to Our Expert

Our journey starts with a 30-min discovery call to explore your project challenges, technical needs and team diversity.
Manager
Maria Lapko
Global Partnership Manager
Trusted by People
Trusted by Businesses
Accenture
SpiralScout
Valtech
Unisoft
Diceus
Ciklum
Infopulse
Adidas
Proxet
Accenture
SpiralScout
Valtech
Unisoft
Diceus
Ciklum
Infopulse
Adidas
Proxet

Want to hire Mobile developer? Then you should know!

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Why Hire a Mobile App Developer?

Hire a mobile app developer, and your project doesn’t crash ‘cause someone knows their shit. These guys push apps to the App Store or Google Play without screwing up the tech or design—everything’s set for a smooth launch. They get usability, speed, and features dialed in, so users don’t spit and your business looks good. Want an app people keep instead of trashing? This is your move.

Seasoned devs can code for iOS, Android, or hybrid—startups get prototypes or MVPs to turn napkin ideas into real stuff, while big dogs team up for real-time chat or IoT hooks to juice their products. A sharp team keeps the app from lagging—testing, debugging, and smoothing it out. Need a clean interface, beefy backend, or API that doesn’t choke? They’ll crawl inside your head and make it happen.

How to Hire a Mobile App Developer

  1. Figure Out What You Need: Pin down if it’s iOS, Android, or a hybrid gig to keep your budget from sprawling. What’s your business after? List it—real-time chat, shop features, IoT—so you’re not fishing blind.
  2. Write a Solid Job Post: Throw in what they gotta know—Flutter, React Native, Swift, UI/UX design, or how to keep an app from crawling. The clearer you are, the less random dudes knock.
  3. Check the Candidates: Hunt for coders who hold up—portfolios show if they handle cross-platform or native without choking. Empty or calculator junk? Run.
  4. Ask About Their Past: Dig into old projects—did they hit or just gather dust? Case studies spill more than resumes.
  5. Set the Rules: Tell ‘em straight—what you want, when it’s due, tools like SDKs or APIs in play. No frame, and they’re running around like headless chickens.

Your job post’s gotta punch—short, clear, so real devs bite. Use a title like “iOS Guy for Med App” or “Cross-Platform Dev for Chat”—boom, they get it. Spill the project—speed, UX, backend—and demand skills: Flutter, Xamarin, JavaScript, API, design. Say what you expect—finished app for the store, tested MVP, or endless QA. Toss in your turf—shop, healthcare, startup—so they know the deal.

What Mobile App Developers Do

Mobile App Developer for Hire

iOS Development

They bang out apps for iPhone and iPad, running smooth on Apple’s system and sliding into the App Store no sweat.

Android Development

They crank apps for Android—cheap phones to tablets—making sure Google Play doesn’t gag and users download.

Cross-Platform Development

They hit iOS and Android at once with React Nativeor Flutter—saves time, but they gotta not screw it up.

UI/UX Design

They sketch interfaces that don’t piss people off and designs that don’t burn eyes—users stick when it’s easy and sharp.

Backend

They dig into the server side—keeping the app upright, APIs humming, and data flying without jams.

Quick Facts about Mobile Development:

  • The Original Pocket Sorcery (1993)
     Angry Birds? 
  • App Store Gold Rush (2008)
  • SMS: The Prehistoric App
    And thus, texting was born. 

  • For fun.” 
  • Shazam’s Magic Ears (2002)
    WHAT. IS. THIS. Dark sorcery? 

  • Enter WeChat, the super app. WeChat’s got you. 
  • Tetris on a Brick (1994)
  • NASA’s PalmPilot Hack (1998)
    Why? Your smartphone? 
  • Symbian (1997)
  • Pokémon GO’s Augmented Chaos (2016)
  • BONUS: Instagram’s Insane Launch (2010)
    Now? 
  • Final Words of Madness
    What’s next? Apps that predict your thoughts? Phones that cook dinner? 

What are the top Mobile instruments and tools?

  • Android Studio: Official IDE for Android app development
  • Xcode: Apple’s IDE for iOS app development
  • Appium: Automation tool for mobile apps
  • Charles Proxy: Web debugging proxy tool
  • Postman: API development tool
  • TestFlight: Beta testing tool by Apple

Hire a Mobile App Developer on Upstaff

Find top mobile app developers on Upstaff to crank out apps that match your business hustle. Need iOS, Android, or something that runs both? These pros sling UI/UX design, API tie-ins, and the whole app development grind. With chops in languages, frameworks like Flutter and React Native, and know-how for App Store and Google Play, they build for e-commerce, healthcare—whatever you’re chasing. Post your gig now and grab talent that turns your app idea into a real damn thing, done right.

Table of Contents

Talk to Our Expert

Our journey starts with a 30-min discovery call to explore your project challenges, technical needs and team diversity.
Manager
Maria Lapko
Global Partnership Manager

Top Use Projects For Mobile App Developers:

These are the most impactful and technically demanding domains where mobile developers are very good at creating innovations for all sectors.

FAQ About Hiring Mobile App Developers

What Qualifications Should a Mobile App Developer Have? Arrow

A mobile app developer better knows their work—Swift, Java, JavaScript, Kotlin, that’s the baseline. They’ve got to sling frameworks like Flutter, React Native, or Xamarin without blinking and have a damn good eye for UI/UX design—nobody wants an app that looks like a dog’s breakfast. API integration? Check. Performance tweaks? Hell yeah—apps that lag are dead on arrival. Look for problem-solvers who can juggle front-end flash and back-end grunt, full-stack style, and who’ve got a grip on costs and timelines. In 2025, they need to sniff out trends, too—mobile app development ain’t static, and the sharp ones keep up.

Can Mobile App Developers Work Remotely? Arrow

Yeah, tons of mobile app developers work remotely—coding, testing, and tuning apps for the App Store or Google Play from wherever they crash. They lean on tools like Slack or Zoom to keep the chatter flowing with teams or clients, no matter if they’re in New York or some shack halfway across the planet. It’s 2025—distance is just a number; businesses snag top talent this way, no leash required.

How Do Mobile App Developers Ensure App Performance? Arrow

They keep apps humming by writing code that doesn’t choke—optimized, tight, and no fat. Rigorous testing is their jam—pounding it with SDKs and monitoring gear to catch hiccups before users do. Usability’s king, so they make sure it runs smoothly across phones, tablets, whatever, and real-time features don’t stutter. Updates and debugging? Non-stop—keeps the wheels on and users from bitching.

What Tools Do Mobile App Developers Use? Arrow

They’ve got their kit—Xcode for iOS, Android Studio for Android, Flutter, or React Native to dodge platform wars. UI/UX? Figma or Adobe XD to sketch something that doesn’t hurt to look at. APIs and SDKs juice up the features, while Microsoft Teams or Slack keep the crew from turning into a mess. It’s the toolbox that gets apps from brain to phone without a hitch.

What Industries Benefit from Mobile App Developers? Arrow

E-commerce, healthcare, IoT, startups—mobile app developers sling solutions for all of ‘em. Think shop apps with payment gateways that don’t flake, healthcare portals that track patients without screwing up, or chat apps that ping in real-time. They bend to whatever a business needs—versatile as hell, delivering apps that don’t just sit there but do the job.

Hire Mobile Developer as Effortless as Calling a Taxi

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