Hire the best Android Developers in Kharkiv, UA

Check out Android Developers in Kharkiv, UA with the skills you need for your next job.
Clients rate Android developers
Rating is 4.8 out of 5.
4.8/5
based on 2,132 client reviews
  • $40 hourly
    With 18 years in Java and JS development and 350+ talents, our team always has available hands to help with your development needs.
    vsuc_fltilesrefresh_TrophyIcon Android
    iOS Development
    React
    Node.js
    Amazon Web Services
    Java
    Python
  • $10 hourly
    Game development: - Unity3D - 2D - Android - iOS - WebGL - API - SDK - Animation - Levels building - Idea creation Web Development: - HTML & CSS (intermediate web design) - JavaScript - Php - Python - API - MySQL
    vsuc_fltilesrefresh_TrophyIcon Android
    WebGL
    ASP.NET
    Web Design
    API
    Web Application
    Video Game
    Game
    Mobile Game
    JavaScript
    C#
    In-App Purchases
    Smartphone
    PHP
    Python
  • $25 hourly
    I am Software Engineer with about 8 years of experience, mostly in Android App Development using Java. I have experience in architect complete software solutions (web, mobile and server) and project management. I worked on: - Android & iPhone app development - hybrid mobile application development (ionic ... xamarin, react native) - game development (Cocos2d-x ...) - API development | web services - Server solutions (including serverless solutions) - Taxi (client/driver) infrastructure projects - delivery projects - map and location/GPS based projects - social networking projects - coupon systems - qr code technology usage - IoT projects - real estate inspection apps - interaction with BLE devices (BLE 4, BLE 5 Coded Phy) - Mobile apps Reverse Engineering (de-compilation, creation of mods, API extraction, decryption) - chat-bot creation - Instant Apps Integration
    vsuc_fltilesrefresh_TrophyIcon Android
    App Development
    Git
    Reverse Engineering
    Mobile App Development
    Web Service
    PHP
    Kotlin
    Java
  • $30 hourly
    ▪️ Android App Developer ✅ 6+ years experience ✅ 50+ successfully projects ✅ mentor I am an experienced developer with a universal background in software development across various industries, including healthcare, fintech applications, booking services, shops platforms, and more. I have successfully delivered high-quality Android solutions in these sectors, contributing to their growth and success. Additionally, I have also worked on projects in the transportation and hospitality industries, providing valuable mobile experiences for users. With my diverse industry exposure, I bring a deep understanding of different business domains and their unique requirements to every project. My technical skills and knowledge include: - Programming Languages: Java, Kotlin - Strong command of Android Framework and object-oriented programming (OOP) - Proficiency in various architectural approaches, such as MVP, MVVM, and Clean Architecture - Expertise in Dependency Injection Frameworks, including Dagger 2, Koin, Kodein, and Hilt - In-depth familiarity with Firebase products, such as Firebase Cloud Messaging, Firebase Cloud Functions, Firebase Cloud Firestore, Firebase Cloud Storage, and Firebase Crashlytics - Extensive experience with Google Services and APIs, including Google Maps API, Google Geolocation API, Google In-app Billing API, and GPay - Knowledge of Backend as a Service (BaaS) platforms, particularly Backedless - Experience in continuous integration using bitrise.io - Proficient in version control systems, specifically Git - Familiarity with bug tracking systems and project management tools like Trello, Jira, and Worksektion - Expertise in various libraries such as RxJava2/RxKotlin, Glide, Retrofit, OkHttp, AndroidX, FirebaseCore, Gson, Room, Stetho, Fabric, Zxing, VLC, and Material Design - Proficiency in databases like SQLite, Room, and RxRoom - Familiarity with other technologies such as BLE (Bluetooth Low Energy) and Beacon. ▪️UI/UX Designer ✅ 4+ years experience ✅ 50+ successfully projects ✅ mentor I help clients establish ideas and grow their business by building web based design solutions for different types of digital products from various industries.

 More than 4 years companies and individuals receiving my help in crafting user-friendly interfaces for complex mobile and web services, dashboard interfaces, E-commerce. 

 My Skills: ❇️ UI/UX Design, User Interface and User Experience Design
 ❇️ Mobile App Design
 ❇️ Web and Mobile Design
 ❇️ E-commerce
 ❇️ Responsive Design Design Process: ⭐️ Audience and Competitor Analysis ⭐️ Customer Journey and Site Structure ⭐️ Custom Web Design and Prototyping Let's connect and bring your vision to life. 💡 Click the "Hire Me" button to start a conversation that will transform your digital presence.
    vsuc_fltilesrefresh_TrophyIcon Android
    Jenkins
    Room
    SQL
    Google APIs
    Use Case
    Model View Presenter
    Model View ViewModel
    Clean Architecture
    Retrofit
    Firebase
    Java
    Kotlin
    Android App Development
    Mobile App Development
  • $50 hourly
    Looking for an expert Mobile App Developer ? Let's cooperate! 🚀

 🔥 I am a skilled expert IOS and Android developer with 7 years of experience only in Mobile App and 10+ years of experience in programming. I have a list of successful completed projects. More than 35 completed mobile apps in Flutter. More than 40 Swift projects! 🔥

 My technology stack for Mobile projects: 🧑‍💻 Mobile development: Swift | Kotlin | Objective-C | React Native | Flutter | Java 🧑‍💻 Back-end: PHP (Laravel, Symfony, CakePHP) | NodeJS (Express) | Python (Django) | Java, Spring | Ruby | API servers 🧑‍💻 UI/UX design, UX audit, logo, and branding 🧑‍💻 QA: manual functional, tests automation Industries we work with and have vast expertise: 🔸 FinTech 🔸 Financial services; 🔸 Travel&Hospitality; 🔸 Real estate; 🔸 Restaurant business; 🔸 Bookings; 🔸 Taxi & Delivery; 🔸 Fitness and sports; 🔸 E-commerce; I use React Native and Flutter to create most of our mobile applications. React Native is a modern tool from Facebook that lets you create native apps for both iOS and Android using one codebase. Flutter is a technology from Google for the same thing. Using such platforms reduces development and maintenance costs while allowing you to use any native functionalities — cameras, GPS, and anything else available for native apps. If needed we can also write in Java, Swift, or Kotlin for specific things. What I can do to make your project successful: 🎯 I conduct a thorough Lean Inception or Project Discovery to validate your business idea early on 🎯 I analyze flowcharts, design or make code review and provide you with a detailed development plan together 🎯 You have budget limitations and need efficient and cost-saving development 🎯 You look for custom solutions to address your particular business objectives 🎯 You hesitate which of the mobile solutions (native or cross-platform) will work better for your project

 🔥 Top 1% of talent on Upwork. 🔥 Customer & business oriented approach

 Contact me, Vladyslav Yevtushenko
    vsuc_fltilesrefresh_TrophyIcon Android
    iOS
    iOS Development
    Android App
    Mobile App Design
    iOS SDK
    Flutter Stack
    Android App Development
    Kotlin
    Flutter
    Mobile App Development
    Swift
    Mobile Advertising
    Native App Development
  • $45 hourly
    Experienced iOS and Flutter Developer with over a decade of commercial experience, specializing in leading development teams and delivering top-notch mobile applications. Recognized for my outstanding contributions in leading and developing over 50 mobile applications across diverse industries, including Food Delivery, E-commerce, Healthcare, Travel and Hospitality. As a lead developer in teams of 3-10 professionals, I have excelled in guiding projects to success through effective team collaboration and leadership. Proficient in tackling projects of varying complexity, I thrive in dynamic environments and am adept at solving challenges to deliver innovative solutions. I've successfully navigated the diverse worlds of Food Delivery, E-commerce, Healthcare, and the Hotel and Restaurant business, delivering tailored solutions for each sector. I'm committed to pushing the boundaries of mobile development and am dedicated to creating apps that deliver exceptional user experiences.
    vsuc_fltilesrefresh_TrophyIcon Android
    Fastlane
    RESTful API
    Healthcare
    Machine Learning
    Stripe
    HIPAA
    Apple HealthKit
    VoIP
    AI Mobile App Development
    iOS Development
    Swift
    Dart
    In-App Purchases
    Firebase
    Flutter
  • $45 hourly
    ⭐⭐⭐⭐⭐"Ruslan has incredible partnerships which allows your project to proceed smoothly without any hiccups. Ruslan is extremely easy to accomodate any changes, and is very patient with all the backs and forths. The project dragged on longer, but the freelancers were patient and still went on to make all relevant changes until the project was successfully delivered. Ruslan is always online; I mean always !!! and so he responds nearly instantly to any messages, which is very important when you have just started your first project and anxious about these things!!!" I'm the Top Rated Plus MVP Developer on Upwork with great communication routine and numerous 5-star reviews, including overly positive feedback. I've developed numerous MVPs and made massive performance improvements for my clients in different business domains and including the following to illustrate some of them: ☑️ Education Apps ☑️ Delivery Apps ☑️ Fitness Apps ☑️ Dating platforms ☑️ Online Booking Apps ☑️ Tourism Apps 
☑️ Uber-like-Apps ⭐ Here's what I can bring to your project ⭐ ✅ Delivery of brand & Logo designs, as well as identity kit (letters, colours, patterns, fonts etc) ✅ Delivery of a comprehensive UI/UX design for all app screens, demonstrating a comprehensive user flow ✅ Delivery of clickable prototype for the app, reviewed by MVP architect ✅ Delivery of comprehensive App Version 1.0 ✅ Development of an admin panel and landing page for marketing purposes ✅ Listing on stores and further maintenance. ⭐ Why you should choose me over other freelancers ⭐ ☑️ Client Reviews: I focus on providing value to all of my clients and earning their TRUST. ☑️ Over-Delivering: this is core to my work as a freelancer. My focus is on giving more than what I expect to receive. I take pride in leaving all of my clients saying "WOW" ☑️ Responsiveness: being extremely responsive and keeping all lines of communication readily open with my clients. ☑️ Resilience: reach out to any of my current or former clients and ask them about my resilience. For any issue that my clients face, I attack them and find a solution. ☑️ Kindness: one of the main aspects of my life that I implement in every facet. Treating everyone with respect, understanding all situations with empathy, and genuinely wanting to improve my client's situations. 🏆 Reviews and feedback from entrepreneurs and innovators that decided for me🏆 The client reviews below describe the quality of work and value that you can expect from working with me. "This is the second time I’ve worked with Ruslan and his team and they completed the Job with patience, professionalism and was within budget. Will definitely use again." "Working with Syject has been a pleasure. This was our second engagement with them and I am sure it will not be our last. Their work is always high quality, efficient and quick. Communication with the Syject team is good and they comport themselves professionally and personably. When we were not sure just what we needed, they are able to bring their creativity to the problem and suggest great solutions." "Professional flutter developer, highly recommended. All tasks on the project completed well. I liked communication and involvement. In addition to skilled and professional programming, he also suggested ideas about UX and UI. Good work, will definitely work in the future if I need flutter developer again."
    vsuc_fltilesrefresh_TrophyIcon Android
    Firebase
    Web Design
    MongoDB
    Java
    Kotlin
    Dart
    Map Integration
    Unity
    Social Media Account Integration
    Game
    Figma
    Flutter
    Tablet
  • $35 hourly
    More than 4 years overall experience with IT. Skills in mobile development, design patterns and REST APIs design. Large experience in Java and Kotlin languages and 3rd party frameworks. Have extensively worked with Ecomerce(Gas Stations), Healthcare, Media and Astrology domains KEY SKILLS: • Kotlin, Java, Android Studio, Android SDK • MVVM, MVP, Android Architecture Components (Room, LiveData & ViewModel), • RxJava, Kotlin Coroutines • Dagger 2, Coin • Firebase • Google Maps, Location • REST API, Retrofit2 ,OkHttp
    vsuc_fltilesrefresh_TrophyIcon Android
    Retrofit
    Firebase
    Android App Development
    Android Studio
    Model View ViewModel
    Clean Architecture
    RxJava
    Model View Presenter
    Database
    Dagger 2
    Android SDK
  • $40 hourly
    I'm professional Android Developer. I worked on such projects as Social Networks, Market Places, Cryptocurrency Trading Platform, Ride-sharing system, e.t.c. I use such technologies and approaches as: Kotlin, Java Android SDK MVVM/MVP Clean architecture Clean code Multi-module structure Dagger2/Koin Google Firebase Google Cloud Services RX/Coroutines Cicerone/Android Navigation I personally like music, board games and football
    vsuc_fltilesrefresh_TrophyIcon Android
    Kotlin
    Firebase
    Tablet
    Dagger 2
    Clean Architecture
    Model View ViewModel
    Retrofit
  • $35 hourly
    10+ years commercial development; 9+ years in iOS development; Some projects: Daily Motivation & Inspiration Sing AR Fight (iOS, ARKit, Unity); Language Pal (iOS) Family Economist(iOS,RoR REST Server); Hello Pal (iOS); My Pizza Shop Maker (iOS); Booger Town (iOS); Children Fairy Tails (iOS); Sing or Fight (Windows Phone 7/8) Little Reader Touch (iOS) Spot the difference puzzle with funny stickers for kids and toddlers. (iOS)(Free/Premium) Match Up - Shape Matching Puzzle Game for Kids and Toddlers (iOS) (Free/Premium)
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    JSON
    iPad App Development
    iOS Development
    Mobile App Development
    Kotlin
    Java
    Objective-C
    SQLite
    Swift
  • $45 hourly
    I am the founder of Nitrix, a software development company. I have specialized in web and mobile development for more than 10 years and now I can offer you a team of outstanding developers who can create excellent IT solutions for you and your business! Your idea will be realized with an attractive UI/UX design and a clean code that is easy to read, support, and implement additional functions. As a progressive software development company, we aim to create the most comfortable, smooth, and stable products for millions of users. Our specialists have developed different services and apps of various scales, importance, and spheres (medicine-related services, uber-like and dating apps, streaming services, news apps, etc). We have a solid understanding of the whole process of the software development cycle so your request will meet all modern requirements and standards. You can check our portfolio and reviews from previous clients below, so do not hesitate to write to me and we will discuss the reason that brought you here! Technologies we use: Flutter, Dart, Swift, Objective-C, Kotlin, Java, C#, JavaScript, PHP, MySQL, iOS SDK, CarPlay, tvOS, watchOS, Android SDK, Android Auto, Android TV, Wear OS, Google Chromecast, ExoPlayer, FFmpeg, RESTful, Sockets and many more!
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    Streaming Platform
    Web Development
    IPTV
    Web Design
    UX & UI
    Apple Watch
    Dart
    tvOS
    iOS Development
    iOS
    Kotlin
    Swift
    Flutter
    Android App Development
  • $35 hourly
    Lookin’ for a React / React Native / Node dev? I’m your guy! Do you have an idea you want to get off the ground? I can help you with the initial planning phases right through to completing development on your idea. I am a FullStack Web/Hybrid Mobile Apps Developer with over 8 years of experience. Experienced and comfortable in: - High level of knowledge in React/Redux, React Native, jQuery, Backbone/Marionette, Underscore - Node/Express - MySQL, MongoDB - CSS3 with Sass + Compass, Bootstrap - HTML5 - Firebase - Redux/Saga - BLE - Git, GitHub, Bitbucket With these and other technologies I've worked on about 20 projects of various complexity. Will help you bring ideas to life, with pleasure. Thank you for the interest to my profile!
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    Redux Thunk
    iOS Development
    Mobile App Development
    Node.js
    React
    React Native
    Firebase
  • $55 hourly
    Hi! My primary specialty is Business Development, including many other activities in digital product building. I can successfully manage large teams of software engineers with experience in JAVA, NodeJS, React, PHP, iOS, Android, JavaScript, and QA. 📌TOP RATED PLUS—The badge is awarded to the top 3% of performers who display proven success on large or long-term contracts. 📌10+ YEARS OF EXPERIENCE—Wide experience in managing software development projects for businesses that operate in various industries. 📌100% JOB SUCCESS RATE—Dedication to clients' success and complete commitment to delivering solutions that bring real value. I do know how to develop software from A to Z and what requirements should be adjusted before tapping into building a product. Why? I graduated with a bachelor's degree in computer science and started working in the IT industry in 2011. I started my career as a web developer and then continued as a Project Manager. Since then, I've been working in IT, helping businesses turn ideas into working solutions that deliver real value. I have a strong technical background and a solid understanding of how technologies work and how to apply them to achieve the required result. Having product management experience, I can help: ➕Create and adjust business development plans ➕Define the right project requirements ➕Optimize user stories and software requirements specifications ➕Analyze possible risks and find ways to overcome them ➕Manage teams of software engineers and other tech specialists I am focused on achieving success by understanding real business needs—not just following specified requirements. I successfully managed several projects from different business domains: ☑️ Dating platforms ☑️ Auction platforms ☑️ Warehouse management systems ☑️ e-Commerce portals ☑️ e-Recruitment solutions ☑️ Online Booking engines ☑️ Tourism The CodeIT team has great skills in the following: ✅ Web development: PHP, Java, .Net, JavaScript, Angular JS, Bootstrap ✅ Mobile Development: Objective-C, SWIFT, Java, iPhone, iPad, Android ✅ Databases: MySQL, PostgreSQL, MongoDB ✅ Quality assurance ✅ UI/UX design Feel free to learn more about my expertise by reading the comments below. Have some ideas to discuss? ✉️Send a message or book a consultation!
    vsuc_fltilesrefresh_TrophyIcon Android
    Objective-C
    Swift
    iOS Development
    Java
    JavaScript
    PHP
    HTML5
    MySQL
  • $42 hourly
    Business Development Manager at CodeIT, helping our clients all over the world achieve business goals with the top-notch web and mobile solutions. Building scalable and high-performance web and mobile applications from scratch is our main expertise. Our services and tech stack: - Web development: Java, PHP (Laravel, Yii, Zend, Symfony), Node.js, Angular, React.js, Vue.js - Machine Learning and Artificial Intelligence - Mobile development: native iOS (Objective-C, Swift) and Android (Java), cross-platform (React Native) - QA: manual and automation - DevOps and System Administration - UI/UX design, Business Analysis (prototyping + writing technical specification) - Marketing. Our main business domains are FinTech, Healthcare, Social Media, Travel, Real Estate. We know HOW to turn your idea into software reality! Use our expertise today.
    vsuc_fltilesrefresh_TrophyIcon Android
    MVC Framework
    HTML5
    AngularJS
    JavaScript
    MySQL
    PHP
    iOS Development
    Laminas
    CSS 3
  • $50 hourly
    Hello! With over 6 years of hands-on experience, I've evolved from managing teams to a dedicated freelancer, specializing exclusively in mobile app development. My focus is on creating and launching large-scale applications using Agile development methodologies. With extensive expertise in mobile development, I guarantee that even the most intricate project ideas will be transformed into finished, polished software products, aligning seamlessly with your business goals. My experience spans various business segments, ensuring I comprehend the processes that drive project success. Whether you're envisioning a top-notch app with complex architecture or a sleek MVP, I've got the expertise to handle it all. I'm proficient in developing applications using the latest technologies which include but not limited to: Languages and frameworks: Java, C#, Objective C, Swift, Cocoa Touch, PHP, Symfony, Laravel, Zend, Python, SQL, HTML, CSS, JavaScript, Angular.js, Node.js, Backbone.js, Ember.js, Require.js, Moment.js, jQuery, Bootstrap Data: MySQL, PostgreSQL, MongoDB, JSON, XML, RESTful IDE: Eclipse, Android Studio, Xcode, Zend Studio, Aptana API: Media API, Location and Map API, Web API Let's collaborate to bring your mobile app development projects to life!
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    Java
    Firebase
    React Native
    Mobile App
    Smartphone
    Swift
    Kotlin
    Mobile App Development
    iOS
    iOS Development
    Android App Development
    Objective-C
    JavaScript
    PHP
  • $35 hourly
    It’s time to employ a different technique for medical, educational and assisting businesses purposes. Cyborgs.Pro team was one of the first in Ukraine who started using AR technologies (ARKit, ARCore and Vuforia). ★★★★★ 4,9 Stars Feedback Score based on 31 reviews ★★★★★ $100k+ earned via Upwork only ★★★★★ Top Rated ★★★★★ 100% Agency Job Success Score Greetings, I am fully independent and client-oriented Unity 2-3d (C#), AR (ARKit/ARCore & Vuforia) and Android (Java) app/game developer. As part of my dream, I created and run Cyborgs.pro, a mobile app and game development studio that pushes boundaries, breaks down barriers and makes dreams come true. We are a passionate team of UI/UX design, 3D design, Unity game development, Unity AR/VR development, full-stack Android and iOS development, business analysis, project management, and QA engineering. We specialize in developing exciting mobile apps and addictive games in a variety of genres. From casual puzzles to immersive virtual reality adventures, we have the skills and experience to bring any concept to life. We are: • Highly experienced Unity Developers • Strong experienced AR\VR Developers with depth knowledge ARFoundation (ARKit\ARCore) &Vuforia • Advanced 3D modeling, texturing, rendering, rigging and animation experience with a good knowledge in Maya, Zbrush, Substance painter, Blender. • Proficiency in C#, C++, Java, Kotlin programming languages • Experience working with Android, iOS, Windows and WebGL builds • Experience developing native Android apps in Android Studio, Eclipse. • Experience with blockchain platforms and protocols (e.g. Ethereum, Polygon). • Experience with trading platforms, wallets, and related NFT tools (e.g. OpenSea, MetaMask) • Experience publishing to Google Play, App Store, Amazon AppStore. • Experience with GitHub, Google Cloud Storoge, MySQL, PostgreSQL, SQLite. • Experience with third-party frameworks and tools - AdMob, Firebase, Google maps, Photon, Skillz and others. We believe in the power of collaboration. When you choose Cyborgs.pro, you become part of our creative family. We value your ideas, goals and aspirations and work closely with you to turn your vision into an exciting reality.
    vsuc_fltilesrefresh_TrophyIcon Android
    Smart Contract
    NFT
    Metaverse
    Game Design
    Game Development
    Mobile App Development
    Android SDK
    Augmented Reality
    Android App Development
    Virtual Reality
    C#
    Unity
  • $40 hourly
    Hello, Upwork Community! I'm a professional Mobile developer with 10 years of experience. As a programming process always was an inspiration for me I founded my own company Spry Rocks. Our Team consists of the following prominent members: 1) Native Android, iOS developers (Java, Kotlin, Swift, Objective-C) 2) Cross-platform React Native developers (Android & iOS) 3) Frontend developers (React.JS, Javascript, Typescript, HTML, CSS) 4) Backend developers (Express, Node.JS, Javascript, Typescript, SQL) 5) Bussines analyst 6) Project manager 7) UX/UA Designer & QA I have strong knowledge of architecture patterns and project management! In SpryRocks we work by SCRUM methodology and always improve our workflow. To make sure that my team and I are really responsible guys, look at our feedback from customers here. We highly appreciate the long-term relationship. That's why I promise you the qualitative approach, meeting deadlines, and continuous communication! And don't forget to look at our portfolio and check other cool projects which were developed by us. I am sure that you will be pleased.
    vsuc_fltilesrefresh_TrophyIcon Android
    Redux
    Native App Development
    Hybrid App Development
    iOS
    React
    Node.js
    UX & UI
    Amazon Web Services
    React Native
  • $45 hourly
    I have been working as a project manager for more than 6 years. I started from managing small freelancer teams and now I am able to assemble an expert team from our agency with a choice of more than 40 mobile and web developers. We have created and launched many large scale applications using Agile development methodologies. I can guarantee that even the most time consuming project idea will be turned into a finished and polished software product that will help you to achieve your business goals. I have worked on a wide range of apps from various business segments and I understand the processes that will drive your project to success. Whether you want a top-notch app with complex architecture or a slim MVP, I can handle everything. Our engineers are proficient in developing applications using the latest technologies which include but not limited to: Backend: .NET, PHP/Laravel Web front-end: HTML/CSS/JS, JQuery,ReactJS Mobile apps: Swift, Objective-C, Java BD: SQL, Mongo, Oracle, MySql, SQLite, Cloud: AWS, Azure Data Scraping
    vsuc_fltilesrefresh_TrophyIcon Android
    iOS
    ASP.NET Core
    Swift
    Flutter
    iOS Development
    PHP
    Java
    SQL
    Laravel
    C#
  • $63 hourly
    A self-taught, purposeful, and enthusiastic software engineer with 8+ years of practical experience, specializing in Java, Android, Kotlin, automated testing, Team Leadership, and Agile methodologies. I head the Android department in New Line Technologies and my responsibilities include developing and supporting software, communication with customers, mentoring subordinators developers. I have extensive experience in * the independent development of Android projects from scratch to app release on Google Play. * e-commerce projects. * multi-media projects: live video streaming (using RTMP, UDP), video processing in real-time, video post-processing. * using devices hardware: WiFiDirect, Bluetooth, magnetometer, GPS. * work with a Bitcoin protocol, a Dash protocol, and a Bitcore wallet service/client. * large projects with globally distributed teams. * mentoring, code refactoring, troubleshoot, optimize, and performance tune. In only a year and a half, I become the Android team leader due to my passion for software development and my skills in solving challenging tasks. In my spare time, you can find me in a gym squatting with a bar, playing with my son, or reading self-improvement books.
    vsuc_fltilesrefresh_TrophyIcon Android
    User Authentication
    In-App Purchases
    User Profile Creation
    Smartphone
    Kotlin
    Firebase
    Tablet
    Native App Development
    Java
  • $50 hourly
    👋 Hey there, Upwork community! I'm a seasoned iOS team lead developer, steering the mobile domain in a Lean Startup framework, specializing in crafting Minimum Viable Products (MVPs). My journey of the past 9 years has been nothing short of dynamic, as I've dived deep into the world of iOS applications, integrating AI-driven solutions to propel startups towards success in the SaaS arena. As the captain of your tech voyage, I'll guide you through the Apple app review process, ensuring a smooth journey with minimal turbulence. My enthusiasm for pushing technological boundaries is particularly evident in my AI-driven ventures. Together, we can breathe life into your concepts in the most authentic ways imaginable. My rich experience extends to a diverse spectrum of mobile applications, including: 📲 Dating apps with Tinder-like features 📲 Social media apps 📲 Apartment rental apps (think Airbnb) 📲 Live streaming and video sharing platforms 📲 Ridesharing applications 📲 Meditation and healthcare apps 📲 Fitness apps My ultimate goal is to deliver a final product that adheres to the highest quality standards. It's not just about functionality; it's about crafting software that's fully responsive and rigorously tested on a multitude of devices. I'm dedicated to creating well-architected, well-documented, and easily maintainable solutions, ensuring your app evolves seamlessly as your startup grows. Transparency and predictability in client communication are the cornerstones of my approach, fostering lasting and reliable collaborations. Technical Expertise: Programming Languages: 🔥 Swift 🔥 C 🔥 Objective-C Architectural Approaches: 💡 OOP 💡 POP 💡 SOLID 💡 Design Patterns Frameworks: 🚀 AI-Driven: Metal, GLKit, UIKit, AVKit, ARKit 🚀 Graphics: QuartzCore, CoreGraphics, CoreAnimation 🚀 Location Services: CoreLocation, MapKit 🚀 Monetization: AdMob Databases: 🖥 CoreData | 🖥 Realm | 🖥 Firebase Web Technologies: 💡 HTTP | 💡 WebSocket | 💡 XMPP | 💡 SIP Project Management: 👉 Jira, Redmine, Trello, Mantis Development Processes: 👉 Agile, Kanban, Scrum, Waterflow Additional Skills: 👉 Unit Testing, PaintCode, Sketch, Xcode, Git Flow My focus lies in building software that's not only robust but also scalable, reliable, and high-performing. My track record is a testament to my prowess in these domains, with the products I've overseen maintaining exceptional quality over time. Attention to the minutest details is what sets me apart, enabling me to deliver top-notch products. Thank you for considering my profile, and I'm eagerly awaiting the opportunity to connect with you. Let's embark on this exciting journey together! 🚀📱
    vsuc_fltilesrefresh_TrophyIcon Android
    Camera
    Artificial Intelligence
    Web Development
    Tablet
    In-App Purchases
    Firebase
    Swift
    User Authentication
    React Native
    Android App Development
    Smartphone
    iOS Development
    iOS
    Mobile App Development
  • $45 hourly
    Looking for a mobile or server developer? I am running a software agency with highly skilled devs who have 10-15 years of experience and thousands of man-hours in app development in different business areas (Healthcare, Finance, E-commerce, Fitness, E-Learning and different types of business apps). We are ready to bring your ideas to life and help your business growth. Key facts: • Over 300 successfully completed projects (in iOS, Android, PHP, react native/js) • Successful apps on the marketplaces • Managed successfully about projects from the design to launch • Hundred Thousands of man-hours and more than 200 happy customers. • Mobile Software Development (native/hybrid) • Web Development (Full stack PHP, React, Node etc)
    vsuc_fltilesrefresh_TrophyIcon Android
    Health & Fitness
    React Native
    Bluetooth
    iOS
    Sensor
    Android App Development
    iOS Development
    Mobile App Development
    React
    JavaScript
    PHP
  • $20 hourly
    Hello! I have 2+ years of experience as a UX/UI designer specializing in web site, dashboard and mobile applications. In my work, I always try to focus on the user and on the key business indicators (and KPI) as well, which allows me to make a really useful design for the users and the business. Why should you work with me? 1. If you need a landing page for a startup, I will definitely try to convey the idea of the product to the user. If the user understands your product at once, this will increase the conversion and the number of clients for your startup. 2. If your landing page is for e-commerce or sales, I showcase your product from the best side. 3. Since I take into account the interests of your business and the users of your site, it allows you to create a good and working design product. If it suits you and you are looking for the best quality and expertise in UX/UI design, just contact me and we will create an amazing product for your clients Key skills: - Web design; - Responsive web design; - iOS app design; - Android app design; - Dashboard design; - Redesign for your website or app. I work with: - Figma - Sketch - Adobe XD - Photoshop - Principle
    vsuc_fltilesrefresh_TrophyIcon Android
    Web UI
    iOS
    Dashboard
    UX & UI
    User Experience Design
    Mobile UI Design
    UI/UX Prototyping
    Adobe Photoshop
    Figma
    Adobe XD
    Sketch
  • $37 hourly
    - More than 9 years of professional experience in Quality Assurance, Software Testing; - Experience in different types of manual software testing, worked with a desktop/web/mobile applications.
    vsuc_fltilesrefresh_TrophyIcon Android
    iOS
    Mobile Game
    Fiddler
    Web Testing
    Android Studio
    Functional Testing
    API Testing
    QA Engineering
    Postman
    Mobile App Testing
    VMWare
    Jenkins
    Docker
    Ubuntu
  • $45 hourly
    9 years experience in Mobile Development. 4+ years in Flutter Development. 1+ years in IOS Development. Flutter Stack GetX, MobX, Riverpod, Provider, Redux, Bloc, Material / Cupertino Ul, Hero, Svg, Image caching, Intl, Equatable, Dio, Chopper, Get It, Injectable, Freezed, Lint, Auto Route, Go Router, RxDart, FpDart, Hydrated Bloc, Hooks, Gen, Build runner, Json serializable, In-app purchases, Stripe, Paypal, Image cropper, Platform maps, Google maps, Google places, Location, Apple Maps, Here Maps, Mapbox, Geocoding, Firebase (Crashlytics, Firestore, Remote Config, Messages, Auth, Storage), Local notifications, Algolia, GraphQL, Social logins (Google, Apple, Facebook), Flutter Blue, Sqlite, Secure storage, Shared preferences, Hive, Isar, Drift, Realm, Supabase, Pedantic, WorkManager, Video Player, QR, Barcode scanner, Audio players, Just Audio, FFmpeg, Doting, Integration testings, Mockito Firebase mocks, Bloc test, Widget testis, Platform channels, Webview, Lokalise, Localazy, Lottie, FI Chart, We b Sockets, Camera, Encrypt, Obfuscation, Protobuf, Mason, FlutterFlow Android Stack Java, Kotlin, Dart, Swift, Android SDK, Flutter, Jetpack, Room, DataStore, Databinding,ViewBinding,Paging, Navigation, Work Manager, Coroutines, Compose, MVP/ MVVM, Okhttp, Retrofit, GSON, Moshi, Camera X, RKotlin, RxBus, Dagger 2, Hilt, Moxy, Cicerone, Glide, Picasso, Fresco, Android annotations, Butterknife, Firebase Crashlytics. Facebook SDK / Graph Api, Google Auth, Firebase messaging, Remote Config, Firebase Auth, Firestore, App Distribution, ExoPlayer / ExoMedia, FFmpeg, Google Billing, Biometric Api, In-app purchases, PayPal, Stripe, Branch 1O, Google Maps, Here Maps, Mapbox, Distance Api, Routes Api, Mixpanel, Amplitude, Findbugs, Flurry, Barcode a n d NFC scanners, Files picker,Sqlite, Realm, Parse,GraphQL, Supabase, GreenDao, Junit, Mockito, Espresso, Roboelectric, Leakcenary. Custom views, Git, CI/CD (Circle Cl, Codemagic, Fastlane), Bluetooth BLE/BTC, Protobuf, AES Encryption IOS Stack Swift, MVC, MVVM, UIKit, MapKit, CocoaPods, RESTful APIs, JSON
    vsuc_fltilesrefresh_TrophyIcon Android
    Supabase
    Git
    Android SDK
    Swift
    Kotlin
    Firebase
    Flutter
    iOS
  • $27 hourly
    I am doing: -Reverse engineering (Windows, Linux, Android); -Conducting penetration tests; -Process automation; -Reverse engineering of communication protocols.
    vsuc_fltilesrefresh_TrophyIcon Android
    Penetration Testing
    Kali Linux
    Security Analysis
    Python
    Reverse Engineering
    Network Planning
    Network Administration
    Network Monitoring
    Network Penetration Testing
    Computer Network
    Network Security
    Firewall
    Encryption
  • $45 hourly
    ⭐️⭐️⭐️⭐️⭐️ Expert in mobile app development ⭐️⭐️⭐️⭐️⭐️ Greetings! 👋🏻 My name is Yevhenii. I'm a seasoned Mobile Developer (Kotlin). 𝗠𝘆 𝗽𝗿𝗶𝗺𝗮𝗿𝘆 𝗴𝗼𝗮𝗹 𝘁𝗼 𝗵𝗲𝗹𝗽 𝗶𝗺𝗽𝗹𝗲𝗺𝗲𝗻𝘁 𝘆𝗼𝘂𝗿 𝗶𝗻𝘃𝗮𝗹𝘂𝗮𝗯𝗹𝗲 𝗶𝗱𝗲𝗮 𝘁𝗼 𝗹𝗶𝗳𝗲. 👨🏻‍💻 As a seasoned Mobile developer, having a lot of experience, I know how to approach many various and complex projects. Knowledge in mobile development and possession of all necessary skills allow me to provide you with a 𝘀𝗸𝗶𝗹𝗹𝗲𝗱 𝗱𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 𝗽𝗿𝗼𝗰𝗲𝘀𝘀 𝘁𝗼 𝘀𝘂𝗰𝗰𝗲𝘀𝘀𝗳𝘂𝗹𝗹𝘆 𝗿𝗲𝗮𝗹𝗶𝘇𝗮𝘁𝗶𝗼𝗻 𝗼𝗳 𝘆𝗼𝘂𝗿 𝗽𝗿𝗼𝗷𝗲𝗰𝘁! I have the following skills: | ✅ Kotlin | ✅ Java | ✅ MySQL | ✅ MongoDB | ✅ Gradle | ✅ Git | Let's chat about your project and explore how I can help you bring your vision to life. 💡 Share me your invaluable idea 📩 Thanks for your time, Yevhenii
    vsuc_fltilesrefresh_TrophyIcon Android
    Moxy
    EventBus
    Dagger 2
    Android NDK
    Android SDK
    Butter Knife
    Realm Database
    SQLite
    Android App Development
    User Authentication
    Firebase
    Kotlin
    Retrofit
  • $35 hourly
    I've been working as an android developer for several years now. I've developed both small monolithic projects using Retrofit 2, Data Binding, Koin, Coroutines, and large multimodular products using MVVM and clean architecture, Dagger2, RxJava where I was involved in development and maintenance.
    vsuc_fltilesrefresh_TrophyIcon Android
    Android SDK
    Dagger 2
    Firebase
    RxJava
    Kotlin
    RESTful API
    Model View ViewModel
    Android App Development
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