Hire Mobile App Developer

Mobile App
Upstaff provides access to expert mobile app 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
2K+ Vetted Developers
KYD Know Your Developer
48 hours average start

Meet Upstaff’s Vetted Mobile Apps Developers

Show Rates
Hide Rates
Grid Layout Row Layout
Python 5yr.
Django 3yr.
Mobile development
Flask
API
...

- Python Developer with 5+ years of experience in backend development and automation: Django (3 years), Flask, and Fast API for web application development; - Maintaining and supporting production systems using FastAPI and SQLAlchemy, API integrations including financial services and crypto platforms; - Built and supported Telegram bots and automation tools for business operations; - Docker containerization: Docker-compose, Docker via Render (serverless). Deployment and Linux server management (Ubuntu); - Familiar with data reporting and basic analytics through internal monitoring tools; - Open to part-time and distributed team environments with a focus on ongoing system support. - Reached the Top 10 freelance Python engineers on the local market at the age of 17 (showcasing early talent and initiative). - Worked on projects with a multi-million user base, contributing to scalable architecture and high-load system stability. - Successfully launched an educational platform in the USA, now actively used by students, tutors, and academic institutions. - Represented the dev team at the international Wefi Beyond Banking Summit, delivering a product presentation to a global fintech audience.

Show more
Seniority Middle (3-5 years)
Location Ternopil, Ukraine
Objective-C 10yr.
iOS 10yr.
C++ 10yr.
Swift 5yr.
...

- Served as a Senior Software Developer in the Two German Automotive Navigation Projects, focusing on System Team operations as well as Map and Routing domains. - VPN and Network Filtering Development: Extensive experience developing VPN solutions, including cross-platform engines for KeepSolid’s VPN Lite, and expertise in low-level network filtering, proxies, and handling internet traffic. - iOS Development Expertise: Over 10 years of hands-on experience with iOS development, including business apps and secure communication tools, with proficiency in Swift and Objective-C. - C++ Proficiency: Strong background in C++ for developing core network functionalities, optimizing performance, and building cross-platform applications. - Enterprise Application Development: Skilled in developing enterprise-level applications, including parental-style internet filters and device policy management tools. - Agile Methodologies: Proven track record of working in Agile Scrum environments, delivering high-quality software with fast iteration and strong collaboration. - Leadership and Team Collaboration: Experience as a Tech Lead, mentoring teams, and coordinating with stakeholders to resolve issues and implement new features. - Available to start ASAP

Show more
Seniority Expert (10+ years)
Location Odesa, Ukraine
Java SE
Kotlin
Android
...

Android developer with a strong foundation in software engineering, holding a Bachelor's Degree in IT and Software Engineering, and boasting over 4 years of professional experience. Expertise in Java SE, Kotlin, and Android SDK underscored by proficiency in MVVM, MVP, and Clean Architecture, ensuring scalable and maintainable code. Adept in modern Android development tools like Jetpack Compose and Navigation Component, coupled with mastery in Networking & APIs like Retrofit 2 and Stripe API. Demonstrated abilities in asynchronous programming using Kotlinx Coroutines, and commitment to quality through rigorous test case development. Proven track record in contributing to all phases of the SDLC in various projects, from user interface implementation to application deployment for mobile and Android TV platforms.

Show more
Seniority Middle (3-5 years)
Location Ukraine
Android APIs 5yr.
LCDP
Microsoft Power Platform
...

Software engineer with hands-on experience in Android development, boasting a solid engineering foundation with a Bachelor's degree in Business Informatics. Demonstrates proficiency in multiple architectures, including MVVM and MVP, and technical fluency in Kotlin, Java, and Android Studio. Known for contributing to complex projects using tools like Dagger2, RxJava, and Realm, and adept at optimizing app performance and integrating third-party libraries. Played a key role in the development of applications in sectors such as e-commerce, delivery, and CRM, leveraging sound knowledge in material design guidelines and handling API interactions. Emphasizes a thorough understanding of project management and SDLC, with a strong ability to lead and collaborate within cross-functional teams.

Show more
Seniority Middle (3-5 years)
Location Tirana, Albania
NativeJS 15yr.
Play Framework 5yr.
Firebase Cloud Messaging
CI/CD
...

- Senior Mobile Engineer with 17+ years of experience, focusing on cross-platform mobile application development and SDKs. - Expertise in various mobile frameworks (Capacitor, React, React Native, Ionic, Flutter) and native (Swift, Objective-C, Kotlin, Java). - Proficient in CI/CD practices (Fastlane, GitHub Actions, Jenkins), automated deployments, push & messaging tech (APNS, FCM, Courier). - Strong background in backend and API development, including REST, GraphQL, serverless architectures, along with performance optimization. - Demonstrated ability in fostering agile methodologies and working with multi-timezone teams to drive project success. - Holds a BSc in Computer Software Engineering from Sofia University, reflecting a strong technical foundation.

Show more
Seniority Expert (10+ years)
Location Sofia, Bulgaria
LCDP 5yr.
Play Framework 5yr.
Swift 5yr.
Objective-C 5yr.
Kotlin
...

Senior Mobile Application Engineer with 17+ years of experience specializing in cross-platform mobile applications and SDKs. Expert in a wide range of frameworks and languages such as Capacitor, React, Next.js, React Native, Ionic, Flutter, Swift, Objective-C, Kotlin, Java, and proficient in CI/CD practices including Fastlane and GitHub Actions. Demonstrated ability in optimizing app performance, implementing push notification engines, and deploying production apps. Strong focus on secure, scalable API integration and backends, with a history of reducing project timelines through reusable components. Committed to agile methodologies and collaborative team environments, this engineer reflects a superior blend of technical prowess, industry insight, and hands-on experience across fintech, automotive, and healthcare sectors.

Show more
Seniority Expert (10+ years)
Python 5yr.
TypeScript 5yr.
C/C++/C#
Robot Framework
Dart
...

Software engineer with a strong focus on AI integration and full-stack web solutions. A proven track record in building AI-powered tools and automating core processes, coupled with expertise in cross-platform development and containerization. Extensive experience with Python, Docker/Nginx, and deploying reliable APIs. Actively pursuing a Bachelor's in Computer Science and excelling in hands-on roles such as Software Research Engineer. Achievements include reducing log review time by 70% and improving customer agents' response rate from 45% to 85%. Adept in languages like C/C++, JavaScript/TypeScript, and possesses advanced skills in frameworks like Django and ReactJS.

Show more
Seniority Middle (3-5 years)
Location Lagos, Nigeria
AI/ML
ML
Python
...

Results-driven AI/ML Engineer who transforms data into actionable business insights. Led development of recommendation systems that increased user engagement by 35% and fraud detection models that reduced financial losses by $2M annually. Expert in building scalable ML infrastructure and cross-functional collaboration, with experience managing full ML lifecycle from research to production deployment. Combines strong technical expertise in Python, PyTorch, and cloud technologies with business acumen to deliver measurable ROI through AI solutions.

Show more
Seniority Senior (5-10 years)
Location United Kingdom

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

Mobile Apps Tech Radar

Talk to Our Expert

Our journey starts with a 30-min discovery call to explore your project challenges, technical needs and team diversity.
Photo: Yaroslav Kuntsevych(Upstaff CEO)
Yaroslav Kuntsevych
co-CEO

Want to hire Mobile App developer? Then you should know!

Table of Contents

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 it works

  1. Figure out what you need
    Gather all the tasks and business requirements in one file.
  2. Write a job post or project brief
    Our journey starts with a 30-min discovery call to explore your project challenges, and technical needs: Android, Swift, UI/UX design,
  3. Check the candidates
    Within 1-3 days, we’ll share profiles and connect you with the right talents to schedule a call with developers in person.
  4. Set the rules and onboard
    Discuss and define convenient collaboration framework, budget, timeline, terms and proceed with onboarding. 

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.

Share this article
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.
Photo: Yaroslav Kuntsevych(Upstaff CEO)
Yaroslav Kuntsevych
co-CEO

Why Upstaff

Upstaff is a technology partner with expertise in AI, Web3, Software, and Data. We help businesses gain competitive edge by optimizing existing systems and utilizing modern technology to fuel business growth.

Real-time project team launch

<24h

Interview First Engineers

Upstaff's network enables clients to access specialists within hours & days, streamlining the hiring process to 24-48 hours, start ASAP.

x10

Faster Talent Acquisition

Upstaff's network & platform enables clients to scale up and down blazing fast. Every hire typically is 10x faster comparing to regular recruitement workflow.

Vetted and Trusted Network

100%

Security And Vetting-First

AI tools and expert human reviewers in the vetting process is combined with track record & historically collected feedbacks from clients and teammates.

~50h

Save Time For Deep Vetting

In average, we save over 50 hours of client team to interview candidates for each job position. We are fueled by a passion for tech expertise, drawn from our deep understanding of the industry.

Flexible Engagement Models

Arrow

Custom Engagement Models

Flexible staffing solutions, accommodating both short-term projects and longer-term engagements, full-time & part-time

Sharing

Unique Talent Ecosystem

Candidate Staffing Platform stores data about past and present candidates, enables fast work and scalability, providing clients with valuable insights into their talent pipeline.

Transparent

$0

No Hidden Costs

Price quoted is the total price to you. No hidden or unexpected cost for for candidate placement.

x1

One Consolidated Invoice

No matter how many engineers you employ, there is only one monthly consolidated invoice.

How to hire with Upstaff

Seniority
Talk to Our Talent Expert
Our journey starts with a 30-min discovery call to explore your project challenges, technical needs and team diversity.
Seniority
Meet Carefully Matched Talents
Within 1-3 days, we’ll share profiles and connect you with the right talents for your project. Schedule a call to meet engineers in person.
Seniority
Validate Your Choice
Bring new talent on board with a trial period to confirm you hire the right one. There are no termination fees or hidden costs.

Trusted by Businesses

Upstaff operates as a partner, not just an agency. Express that they aim for long-term cooperation and are dedicated to fulfilling client requirements, whether it’s a short one-month project or a more extended collaboration.
Trusted by People - Testimonials and Reviews

Case Studies

We closely collaborate with recruitment & talent acquisition teams on urgent or hard-to-fill positions. Discover how startups and top-tier companies benefit.
Europe’s Data Vision: Dataspaces for Zero-Trust AI Infrastructure
Case Studies

Europe’s Data Vision: Dataspaces for Zero-Trust AI Infrastructure

Upstaff builds AI-Driven Data Platform for Environmental Organizations
Case Studies

Upstaff builds AI-Driven Data Platform for Environmental Organizations

Bringing 2M+ Wallet Ecosystem to the Next Level Decentralized Operating System.
Case Studies

Bringing 2M+ Wallet Ecosystem to the Next Level Decentralized Operating System.

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.

Nine Industries Where App Developers Shine

Apps aren’t just for Silicon Valley hotshots—they’re game-changers across all kinds of industries, and this rundown proves it. Whether you’re in healthcare saving lives or slinging burgers in the food game, there’s a reason to hire an app developer tailored to your world. Stick with this to the end, and you’ll spot hard numbers, quirky facts, and a clear case for why your next move should be snagging a coder. It’s not just fluff—it’s a quick map to what’s working, what’s paying, and how to get in on it.

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.

Ready to hire trusted and vetted
Mobile Apps developers?

All developers and available for an interview. Let’s discuss your project.
Book a Call

App Developer Case Studies

Accelerating Talent Acquisition for Insurance and Consulting Excellence
Case Studies

Accelerating Talent Acquisition for Insurance and Consulting Excellence

Bringing 2M+ Wallet Ecosystem to the Next Level Decentralized Operating System.
Case Studies

Bringing 2M+ Wallet Ecosystem to the Next Level Decentralized Operating System.

X20 Active Users for Airdrop Platform with Telegram Mini-App and Chatbot
Case Studies

X20 Active Users for Airdrop Platform with Telegram Mini-App and Chatbot