Hire the Best Android Developers

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Inam Ullah K.

Dera Ismail Khan, Pakistan

$15/hr
5.0
5 jobs

Looking to build a fast, scalable E-commerce & Health & Fitness apps that users actually love to use? I’m Inam Ullah Khan, an Android Developer with 3+ years of experience building and launching production-ready mobile apps. I specialize in turning ideas into high-performance applications—from SaaS platforms to E-commerce, Health & Fitness apps, and with AI Integration. 🚀 What I Can Do for You E-commerce App Development AI Integration in Android (ML Kit, TensorFlow Lite) Google Play Console, App Publishing Payment Gateway Integration. Build modern, responsive UIs using Jetpack Compose Develop clean, scalable apps using MVVM & Clean Architecture Integrate APIs, Firebase, and real-time features Optimize app performance (memory leaks, battery, speed) Launch your app on Google Play Store from scratch 📱 Experience Highlights Developed and launched multiple Android apps (E-commerce, Health & Fitness apps, POS systems, SaaS apps, MVPs) Experience with AI-integrated features and modern app workflows Focus on performance, scalability, and long-term maintainability. 🛠 Tech Stack Languages: Kotlin (Expert), Java Frameworks: Android SDK, Jetpack Compose, Coroutines, Flow Backend & Data: Retrofit, Room Database, Firebase Architecture: MVVM, Clean Architecture, Dagger/Hilt 🤝 Why Clients Work With Me Clear and fast communication Daily progress updates On-time delivery with clean, maintainable code Post-launch support and bug fixing 📩 Let’s Get Started Send me a message with your idea, and I’ll provide a clear technical plan to bring it to life.

  • Android App Development
  • Android SDK
  • Android Studio
  • Java
  • Kotlin
  • Mobile App Development
  • App Development
  • Firebase
  • REST API
  • Git
  • AI App Development
  • Prompt Engineering
  • JetPack
  • API Integration
  • CI/CD
  • Coroutine
  • Mobile App Design
Mikhail M.

Tbilisi, Georgia

$33/hr
4.9
70 jobs

10+ years in mobile development. Flutter, Swift, Objective-C, Kotlin, Java. âś… OOP, FRP, Protocol Oriented Programming, Reactive Programming âś… Architecture Patterns: MVC, MVP, MVVM, Viper, Clean Swift, RxSwift, RxJava, GAA âś… Understanding & ability to leverage iOS and Android features âś… JSON, REST API âś… Custom transition and animation âś… Build chat applications âś… Git; âś… Agile Methodology âś… Friendly, Flexible, Punctual, and Professional âś… Working on iOS and Android apps since 2011 âś… Fluent English âś… 9000+ hours billed on Upwork âś… Worked with successful startup companies âś… 100% Job Success âś… Agile Methodology âś… $300,000+ billed

  • Android App Development
  • Java
  • Mobile App Development
  • Native App Development
  • Objective-C
  • iOS Development
Vadim P.

Barcelona, Spain

$45/hr
5.0
22 jobs

Need someone who can build, stabilize and scale your Android product? You just found him 🤝 📊 12+ years in mobile delivery 📊 20+ Android-focused projects 📊 10+ years supporting regulated and business-critical products 📊 Experience with compliance-ready apps, secure payments, backend-heavy systems and Software Development I help companies create secure, maintainable, high-performance apps for Healthcare, FinTech and consumer products. Core Expertise 🔹 Native Android engineering with modern architecture and Software Design 🔹 Kotlin-first development with maintainability in mind 🔹 Legacy modernization from Java to Kotlin 🔹 Secure integrations, performance tuning, release stability 🔹 Product delivery for Healthcare, FinTech, consumer platforms and Mobile App Development I’m an android developer focused on products where reliability and clean architecture matter. As a kotlin developer, I build scalable solutions with android kotlin best practices, Jetpack tooling and AOSP awareness. Clients come to me for android developer kotlin expertise when they need stability, lower technical debt and growth. I work as an android app developer on products that need more than interface implementation. I support teams with android app development for secure solutions where every android app stays maintainable after launch. My background: improving an android application used by thousands of users, integrating backend systems, payment flows, and healthcare-grade data handling. That is why companies hire me as an android mobile developer ( android mobile app developer ) when they need delivery. What I Do Best ✅ Android development using Kotlin and Java ✅ Architecture design with MVVM, Clean Architecture, modularization ✅ Backend communication, authentication and payment integrations ✅ Performance optimization, debugging, maintenance and release support ✅ Application Improvement for live mobile products ✅ Solo delivery or collaboration inside a larger team My strongest specialization is android developer kotlin work. I often join teams that need android developer kotlin java skills to modernize legacy code, migrate modules, and improve release quality without a full rewrite. That work benefits from practical experience as a java developer and from thinking like an android kotlin developer who can handle new features and stabilization. Relevant Experience Highlights 🔸 Healthcare mobile applications with compliance-aware architecture 🔸 Performance optimization and crash-rate reduction 🔸 Secure data handling and app stability improvements 🔸 Secure apps with payment integration and transaction-safe flows 🔸 Backend integrations with PHP, Python, JavaScript, and REST APIs 🔸 Collaboration with iOS, backend, QA, and web teams 🔸 Ability to scale from one engineer to a delivery team I also have experience with android ble and android bluetooth features for pairing flows and reliable data exchange. Whether I contribute to an android mobile app or support an existing codebase as a mobile developer, I focus on release readiness. Tech Stack 🔸 Android kotlin with Jetpack, Compose, Android SDK, AOSP 🔸 Java, Firebase, secure cloud services, CI/CD 🔸 REST APIs, secure auth, payment gateways 🔸 Node.js, JavaScript, C#, SQL for backend alignment 🔸 Git, Android Studio, release workflows, crash analysis 🔸 MVVM, Clean Architecture, modular apps, scalability-first mindset My work is rooted in native Android, but I also understand broader product ecosystems. I collaborate effectively as an ios developer ( ios app developer ) when cross-platform alignment matters, including iOS Development discussions with teams using Swift. I have worked alongside teams using react native and reviewed delivery implications where flutter developer was involved, though I do not present those as my core specialization. That exposure helps me operate as an android developer and product-minded mobile app developer within cross-functional teams. Team & Product Collaboration 🔹 Coordination with a rest api developer 🔹 Alignment with web application development 🔹 Communication with a web developer or front end developer 🔹 Familiarity with database builder, django, and python automation Support I Can Provide ✔️ Build a mobile app from scratch ✔️ Join an existing product as an app developer android ✔️ Refactor legacy code and modernize architecture ✔️ fix android application bugs and improve release readiness I do not position myself as a wordpress, magento, game developer or unreal engine specialist and I do not use unrelated positioning such as android developer india. Even when someone types android develoer, they usually need a senior specialist who can take ownership. I built mobile applications for autism-related projects with intuitive user experience. 📬 If you need an android developer who can improve an existing product, build a reliable solution from scratch or support growth with kotlin developer depth, send me a message.

  • Android
  • Android App Development
  • Java
  • Kotlin
  • Mobile App Development
  • AOSP
  • Flutter
  • Node.js
  • Swift
  • Firebase
  • iOS Development
  • PHP
  • JavaScript
  • React Native
  • C#
  • SQL
  • Software Design
  • Application Improvement
  • Software Development
  • Software Debugging
Ankit Kumar P.

Ahmedabad, India

$18/hr
4.7
70 jobs

Over the last 14 years, I have almost completed 42 android projects for different businesses and personal use of my clients. Great experience in Java, Kotlin , Jetpack Compose, Dagger HILT and other architectural component, View Based Systems, Android SDK, Google's Android related service and Android Studio. I always welcome new ideas and love to convert them in smart android application. During different applications development period I have gone through many different challenges and finish all of them with my smart work. I have been work in all below area and also willing to explore more with new things. Material Design with backward compatibility, Jetpack Compose, Navigation Component, Dagger HILT, Paging 2 and Paging 3, SQL/SQLite databases, JSON Bese data parsing, RestFull Web service integration, Room, Audio/Video Streaming, ExoPlayer, Face Recognition and OCR, Social Network - Facebook, Twitter integration, Google Map and other Google services, Other open source library integration and modification according to requirement. I am familiar with MVVM,MVC and Clean architecture pattern. I have developed some of my apps with MVVM + CLEAN architecture, including all layers, such as Presentation, Data and Domain. I have hands on experience in Kotlin Flow, LiveData and Coroutine. I am cost effective but quality work provider.

  • Android App Development
  • Kotlin
  • Mobile App Development
  • In-App Purchases
  • User Authentication
  • Application Security
  • API Integration
  • QR & Barcode Scanner
  • Firebase
  • SQLite
  • Core Java
  • Android Room Persistence
  • Face Detection
  • JetPack
Dmitriy C.

Dnipro, Ukraine

$40/hr
5.0
34 jobs

I'm an Android Developer / Mobile Developer with 10 years of experience helping small businesses and startups translate their vision into scalable, high-performance apps from 0 to launch using the latest technologies ( Kotlin , Coroutines , Jetpack Compose , Kotlin Multiplatform, and AI agents ). I specialize in: - on-device AI integration using MediaPipe / TFLite / Google ML Kit (Object detecton , Face and pose detection , Text summarizing / OCR , text-to-speech , speech-to-text , etc.); - building media, social, and everyday tools (not games); - fixing app performance , memory leaks , crashes and ANRs , especially in complex or “vibe-coded” apps. 🌟🌟🌟🌟🌟 Recent feedback : "I was particularly impressed by his strong attention to detail — nothing was overlooked, and the quality of the work consistently met high standards. He showed real commitment to the project, staying engaged and proactive throughout the development process. His regularity and consistency in delivering work made collaboration smooth and reliable." - Neil 🚀 Also I've been building my own Android apps so that gives me a deep understanding of not only a technical part but also ASO and monetization strategy. ✅️ Recent large-scale projects: --- PDF Maker & Reader (130k+ installs , 🌟4.6 on Google Play) Role: Android Developer / Android App Developer / Kotlin Developer I recently built this high-performance Android app from scratch based on Figma mockup using Kotlin. It allows users to quickly convert images to PDF and edit existing PDFs using a fast, local-first architecture. The app has achieved 130k+ downloads and 8k monthly active users on Google Play, with the crash rate lower than 0.1%. --- --- US Medical Education App (COMQUEST for COMLEX & COMAT Prep) Role: Android Developer / Android App Developer / Mobile Developer As part of an international team alongside iOS Developer and Web Developer, I built this Android app from scratch based on Figma designs for US medical students. Continue providing ongoing support for this project, ensuring the mobile app remains a stable and reliable tool for users. --- --- US Automotive Video Suite app Role: Android Developer / Android App Developer / Mobile Developer In collaborating with an iOS Developer and a Full Stack Developer, I built two native Android apps from scratch as a clone of iOS apps (Dealer Video Inventory and Dealer Video Suite) that allows dealers to capture high-quality vehicle inventory videos and photos. These projects helps dealers increase sales through personalized video. --- 🌟 🌟🌟🌟🌟 "Dmitri is a pleasure to work with. He's Android programming skills are exceptional. He's always professional and easy to work with. He is very methodical in his approach. Which at times has resulted in delivery scheduling slipping a little but I rather have a good product than a hastily put together product. We're continuing to work with Dima for other projects." - Philip Whether you are looking for a Mobile Developer to lead a new project or an Android Developer to optimize an existing Java / Kotlin codebase or optimize performance, my goal is to provide technical clarity and long-term stability. As a team player for cross-platform projects I have a proven track record of working alongside iOS developers to ensure smooth releases. I also have specific experience collaborating with Flutter Developers and Full Stack Developers to bridge the gap between cross-platform Flutter / React Native code and the system features specifically by developing custom Java / Kotlin modules to handle native Android OS functionality that standard Flutter plugins can't reach. --- 🚀 My core stack: 🔸️Languages: Java , Kotlin 🔸️UI: XML , Jetpack Compose 🔸️Architecture: MVVM , MVI , Clean Architecture 🔸️Native: Android SDK , Android Studio 🔸️Multiplatform: Kotlin Multiplatform ( KMM / KMP ) / Compose Multiplatform ( CMP ) 🔸️Key features: Camera , Photo & Video capture and edit using FFMpeg , OpenGL , OpenCV ; GPS , Location , Chat , Background syncronization , WorkManager and foreground services, ofline-first approach, on-device AI / LLM , VPN / WireGuard , ExoPlayer / Media3 🔸️On-device AI integration : Video analysis , Image recognition , Object detection , Face detection , Pose Detection , Camera stream analysis , Text-to-Speech , Speech-to-Text ( MediaPipe / Google AI Edge , TensorFlow / TFLite , Google ML kit ). 🔸️Cloud AI integration : OpenAI , Gemini API

  • Android
  • Smartphone
  • Android App Development
  • Android SDK
  • Android Studio
  • Java
  • Kotlin
  • Mobile App Development
  • JavaScript
  • Firebase
  • React Native
  • iOS Development
  • Git
  • Flutter
  • AOSP
  • Software Testing
  • Python
  • SQL
  • Swift
  • CSS
Dmitro B.

Kharkiv, Ukraine

$40/hr
4.7
21 jobs

Are you looking for an Expert Lead Android Developer who prioritizes architectural stability, security, and long-term scalability over quick "hacks"? 🛠️ With over 12 years of professional experience and a Ph.D. in Computer Science, I help businesses transform complex ideas into high-performance, production-ready mobile applications. My core philosophy as an Android Developer is "not just making it work." I focus on architectural stability, security, and long-term scalability. In the world of Mobile App Development, the difference between a good app and a great one is "correct behavior under stress." 🌟 Why Partner With Me for Your Mobile App Development? As a Lead Android Developer, I've spent over a decade perfecting the art of Android App Development. My background includes leading teams, where I managed the full lifecycle of Mobile App Development - from initial requirements gathering to successful releases on the Google Play Store. Here's what I bring to your project: Expert Kotlin Development: I'm a Kotlin specialist, utilizing Kotlin Coroutines & Flow to handle complex asynchronous tasks and data streams seamlessly. Architectural Mastery: I strictly follow Clean Architecture and MVVM/MVP patterns to ensure your Mobile App Development project is easy to update and bug-free. Scientific Approach: My Ph.D. in Computer Science allows me to tackle high-level technical challenges that other Android Developers might struggle with, such as complex algorithms and data processing. Proven Results: I've developed applications with over 1 million downloads, proving that I understand what it takes to scale an Android App Development project for a global audience. 🛠️ Technical Expertise in Android App Development To succeed in Mobile App Development, you need an Android Developer who stays at the cutting edge of technology. My Kotlin-centered stack is designed for performance: Languages: Kotlin, Java, and Kotlin Multiplatform (KMP). Android Frameworks: Android Jetpack, Jetpack Compose, Hilt, and Android SDK. Reactive Programming: RxJava and Kotlin Coroutines & Flow. Networking & Data: Retrofit, GraphQL, WebSockets, and GSON. Storage: Room (SQLite), Realm, and OrmLite. Integrations: Firebase (Auth, Cloud Messaging, Firestore), Stripe, Google Maps API, and Blockchain. 🏗️ Portfolio Highlights: Real-World Mobile App Development Cases My journey as an Android Developer has allowed me to work on a diverse range of Mobile App Development projects: Delm8 (Logistics & Delivery): As the Lead Android Developer, I built a high-efficiency routing service for couriers and delivery drivers, optimizing multi-address routes to save time and costs. AppForType (Photo Editing): A social-integrated photo editor with over 1 million downloads on the Play Market. This project required a deep understanding of Kotlin, complex UIs, and high-performance image processing. BNRC Berkshire Trails: A navigation-heavy app for trekkers featuring real-time GPS navigation, offline trail data, and social sharing features. Healthcare & Safety Applications: I have extensive experience in Mobile App Development for the health sector, focusing on secure messaging, data encryption, and compliance. FinTech & Blockchain: Developing secure native Android applications for financial companies, incorporating Blockchain for data protection and transparency. 🔝 Leadership in Mobile App Development Beyond being a Kotlin expert, I serve as a technical consultant for your business. My role as a Lead Android Developer includes: API Planning: Collaborating with backend teams to design efficient, scalable APIs for your Mobile App Development project. Code Quality: Performing rigorous Code Reviews and refactoring to eliminate technical debt. Strategic Planning: Helping you define the technical roadmap for your Android App Development to ensure we hit every milestone. 📩 Let’s Start Your Mobile App Development Journey Whether you're a startup looking to build a MVP or an enterprise needing a Senior Android Developer to refactor and optimize an existing Kotlin codebase, I'm here to help. I specialize in Mobile App Development that is "GDPR-compliant by design" and built for "enterprise-level reliability." Don't settle for a developer who just writes code. Hire an Android Developer who builds assets for your business. 🚀 Click the "Invite to Job" button to discuss how my 12+ years of experience in Kotlin and Mobile App Development can bring your vision to life! ✉️

  • Android
  • Smartphone
  • Android App Development
  • Android SDK
  • Android Studio
  • Java
  • Kotlin
  • Mobile App Development
  • JavaScript
  • Firebase
  • React Native
  • iOS Development
  • Swift
  • AOSP
  • Git
  • Flutter
  • Software Testing
  • Python
  • SQL
  • HTML

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Cost to hire a Android Developer

Cost to hire a Android Developer

Explore typical Android Developer rates and what businesses pay to hire top talent.

Android Developer job description template

Android Developer job description template

Get tips to write a job post that attracts qualified Android Developers.

Android Developer interview questions

Android Developer interview questions

Top interview questions to help you hire the right Android Developers, faster.

Android developer hiring guide

Android developers build and maintain applications for the Android operating system, which powers over 70% of mobile devices globally. They combine technical expertise in Kotlin, Java, and Android Studio with strategic problem-solving to deliver apps that meet your business goals — from rapid MVPs to enterprise-scale solutions.

What does an Android developer do?

Android developers design, build, and maintain applications for the Android operating system. They work with tools like Android Studio, Kotlin, and Java to deliver user-friendly apps that match your business goals.

Android developers apply modern architectural patterns like MVVM and MVP to build scalable, maintainable applications. Freelance Android developers combine deep understanding of mobile application frameworks, APIs, and SDKs to deliver high-quality results across industries.

How to hire an Android developer on Upwork

Upwork makes it easy to connect with skilled Android developers for projects of any size. To streamline your process, follow these four simple steps.

Step 1: Craft a targeted job post

Your job post serves as the first point of contact with potential candidates. A well-structured posting attracts qualified Android developers and sets the foundation for a successful working relationship. In your post:

  • Define the scope of the project — whether you’re looking for an MVP, ongoing bug fixes and maintenance, feature enhancements, or something else

  • Outline project requirements, including app features, frameworks, or integrations like Firebase, AWS, or Google Maps

  • Specify your preferred tech stack (Kotlin, Java, or cross-platform frameworks like Flutter or React Native)

To draft a tailored job post quickly, try the Job Post Generator powered by Uma™, Upwork's Mindful AI. Describe what you need in a few sentences, and Uma will craft a post in seconds. You can also review Android developer job description templates for ideas and inspiration for your post.

Step 2: Filter and evaluate candidates

As you begin to receive proposals, evaluating them systematically can help you quickly narrow the field to a few choice candidates. 

  • Have Uma give instant video interviews and side-by-side comparisons

  • Use Upwork’s filters to find candidates by rate, location, and experience

  • Check client reviews for insight into communication and reliability

  • Check profiles for talent badges like Top Rated, Top Rated Plus, or Expert-Vetted to identify proven professionals

Step 3: Interview your top choices

Quick video interviews give you the chance to ask any questions you have left for your top candidates, and to get a feel for what a collaboration with them might be like.

  • Schedule and conduct interviews within Upwork messaging to get instant transcripts and summaries from Uma

  • Ask the candidates to walk you through past work from their portfolio, focusing on aspects that are similar to your project and challenges they overcame

  • Discuss their steps for approaching a project like yours, as well as their experience with Android SDK, APIs, and libraries like Retrofit, RxJava, or Jetpack

  • Talk about how they handle feedback, and their process for making revisions and collaborating

To help your interviews stay focused and be productive, you can review interview questions for Android developers.

Step 4: Agree on scope and begin work

Once you’ve found the right fit, you can send a contract directly through the Upwork marketplace. Contracts protect both parties and help collaborations be successful from beginning to end.

  • Use Upwork's contract workroom, messaging, and payment protection for secure collaboration

  • Choose fixed-price contracts for projects with clear deliverables, such as a simple push notification setup

  • Break large projects into milestones, such as error identifications, bug fixes, and validation

  • Choose hourly contracts for ongoing work or projects without clear deliverables, such as ongoing monitoring and updates

Upwork is not affiliated with and does not sponsor or endorse any of the tools or services discussed in this article. These tools and services are provided only as potential options, and each reader and company should take the time needed to adequately analyze and determine the tools or services that would best fit their specific needs and situation.

The rates and information provided in this article are based on current data and industry sources available at the time of publication. Freelance rates can vary depending on factors such as experience, location, project scope, and market conditions. Readers are encouraged to conduct their own research to confirm current rates and trends, as this information may change over time.

How much does hiring an Android developer cost?

The cost to hire an Android developer is determined by market demand, the scope and complexity of the project, and the skills and expertise of the developer. On Upwork, hourly rates typically range from $15 to $35 per hour. The following chart shows the cost of typical Android development projects commonly found through Upwork.

MVP app build

$1,200-$3,500 /project

Entry- to mid-level
  • Login and user authentication
  • Basic UI with forms and navigation
  • Push notification setup

API-integrated Android app

$3,500-$15,000 /project

Mid- to senior-level
  • Third-party API integrations (Firebase, AWS, Google Maps)
  • Custom UI with offline sync
  • Database architecture and management

E-commerce or real-time Android app

$15,000-$50,000+ /project

Senior-level or specialist
  • E-commerce catalog and payment gateway
  • Advanced security protocols
  • Complex back-end integrations

Ongoing app maintenance and updates

$1,000-$5,000 /month

Mid- to senior-level
  • Bug fixes and performance optimization
  • OS compatibility updates
  • Feature enhancements

FAQs about Android developers

Frequently asked questions

Is hiring an Android developer worth it?

Yes, especially if you want a polished, scalable, and user-friendly mobile app. While DIY or low-code tools might work for early experimentation, they often fall short for customer-facing or revenue-generating applications.

Professional Android developers bring deep technical expertise that turns your vision into a fully functioning app. They help you avoid technical debt, security issues, and rework. Android powers over 70% of the global mobile OS market, especially in high-growth regions. Expanding to Android could unlock new revenue and user growth opportunities.

Will AI replace Android developers?

AI tools can streamline coding tasks and testing, but they cannot replace the deep understanding of user experience, architecture, and problem-solving required in Android app development. Businesses still need professionals to interpret requirements, handle edge cases, and ensure apps meet both technical and business goals.

What skills do Android developers need?

Strong Android developers are proficient in Kotlin and Java, with expertise in Android Studio and modern frameworks like Jetpack Compose. They work with architecture patterns like MVVM or MVP and use libraries like Retrofit, RxJava, and Coroutines for efficient networking.

For data management, they use SQL, PostgreSQL, or Firebase Realtime Database. They rely on Git for version control. Many also bring experience with cross-platform frameworks such as React Native or Flutter.

How long does building an Android app take?

The timeline for building a mobile app depends on complexity. A basic MVP may take 100 to 200 person-hours (two to five weeks for a single developer). More advanced apps with vendor portals, maps, or Bluetooth features can take 600 to 1,200 person-hours (three to six months).

Should I hire a native Android developer or a cross-platform developer?

Whether you hire an Android or cross-platform developer depends on your goals, timeline, and budget:

  • Work with a native developer if you need top-tier performance, complex integrations, or platform-specific functionality. Native development typically results in smoother user experience and better long-term stability.

  • Choose cross-platform (like Flutter or React Native) if speed and cost are priorities, or if you're launching on both iOS and Android simultaneously.

Keep in mind: Cross-platform tools work best for simpler apps. For heavy animations, hardware integrations, or real-time data, a native app is usually the safer bet.