๐ณ๐๐๐๐๐๐ ๐๐๐ ๐ ๐ฏ๐๐๐๐๐ ๐ด๐๐๐๐๐ ๐จ๐๐ ๐ซ๐๐๐๐๐๐๐๐ ๐๐๐ ๐๐๐ ๐๐๐๐๐ ๐๐๐๐, ๐๐๐๐๐๐๐๐, ๐๐๐ ๐๐๐๐-๐๐๐๐๐๐๐ ๐ญ๐๐๐๐๐๐ ๐๐๐ ๐น๐๐๐๐ ๐ต๐๐๐๐๐ ๐๐๐๐๐๐๐๐๐๐๐๐ ๐๐๐ ๐๐๐๐ ๐๐ถ๐บ ๐๐๐ ๐จ๐๐ ๐๐๐๐ ?
๐๐ ๐ฆ'๐ฃ๐ ๐๐ ๐ฅ๐๐ ๐ฃ๐๐๐๐ฅ ๐ก๐๐๐๐โญ
I help startups, SaaS companies, and growing businesses turn ideas into modern hybrid mobile apps that are fast, reliable, and ready to scale. Whether you're building a new MVP, improving an existing mobile app, or launching a production-ready product, I provide complete Hybrid App Development services from planning to deployment.
As a Hybrid Mobile App Developer, I specialize in Flutter Development and React Native Development, building cross-platform mobile applications with a single codebase while maintaining native performance and a polished user experience. Every application is developed with clean architecture, responsive UI, optimized performance, and scalability in mind.
Beyond mobile development, I also build secure backend systems, integrate third-party APIs, connect cloud services, and implement AI-powered features. This allows you to work with one developer for your complete mobile application instead of coordinating multiple freelancers.
Whether your project requires Firebase, Supabase, REST APIs, authentication, push notifications, real-time data, payment gateways, or AI integrations, I deliver solutions that are maintainable, secure, and built for long-term growth.
Services I Offer
โ Hybrid App Development
โ Flutter App Development
โ React Native App Development
โ Cross-Platform Mobile App Development
โ Android App Development
โ iOS App Development
โ MVP Development for Startups
โ Figma to Flutter & React Native
โ UI Implementation & Responsive Design
โ REST API Integration
โ Firebase & Supabase Development
โ Node.js Backend Development
โ Authentication & User Management
โ Push Notifications & Real-Time Features
โ Payment Gateway Integration
โ AI ChatGPT & OpenAI Integration
โ AI Chatbots & AI Features
โ App Store & Google Play Store Deployment
โ Bug Fixing & Mobile App Maintenance
โ Performance Optimization & Code Refactoring
โ Clean Architecture, Riverpod, Bloc & GetX State Management
Why Clients Work With Me
โข Hybrid Mobile App Development specialist
โข Flutter & React Native expertise
โข Full Stack Mobile App Development
โข End-to-end development from idea to launch
โข Clean, scalable, and maintainable code
โข Strong communication and reliable delivery
โข Business-focused solutions, not just code
โข Long-term support and continuous improvements
If you're looking for a Flutter Developer, React Native Developer, or Hybrid Mobile App Developer who understands both mobile apps and backend development, let's build an application that delivers an excellent user experience and supports your business as it growsโ
Android SDK
Android
Android App Development
iOS Development
Mobile App Development
Flutter
Smartphone
Chat & Messaging Software
User Authentication
Hybrid App Development
Native App
React Native
API
API Integration
In-App Purchases
Mobile App Design
AI Chatbot
Mobile UI Design
Bug Fix
User Profile Creation
Anna H.
Richmond, Indiana
$30/hr
4.7
4 jobs
I'm an Android-first software developer with 10 years of professional experience, 9 of which have been focused on mobile app development. Kotlin and Jetpack Compose are my home base, and I care a lot about architecture, testing, and release discipline.
Most of my career has been on a consumer Android app with 500k+ Google Play downloads, including work across a dual-flavor codebase supporting two distinct apps from a shared foundation. This work included things such as feature development, API integration and error handling, SDK integrations, and memory leak diagnosis with Android Studio Profiler and LeakCanary. I also built iOS features in Swift and SwiftUI during that time.
Now I work as a software developer at Batteries Included, LLC, taking on web and native mobile projects with a focus on modular, maintainable code. I'm the kind of developer who likes shipping complete things. I even built my own portfolio site in SolidJS, TypeScript, and Tailwind because I like understanding the full product surface.
Lately I've been exploring Kotlin Multiplatform: shared logic, shared tests, practical multi-target Gradle setups, finding the right balance between shared code and platform-native experience.
Off the clock I'm usually knitting, riding my bike, building LEGO sets, or hanging out with my cats, dogs, and chickens.
Android SDK
Android
Swift
Android Studio
Java
Kotlin
Apple Xcode
CSS
HTML
Gradle
CI/CD
Git
GitHub
Dependency Injection Framework
Room
Coroutine
Android App
Firebase
Flutter
Sergei S.
Sarasota, Florida
$25/hr
5.0
25 jobs
A dedicated Software Developer with over twenty years of experience professionally deploying full-cycle solutions.
My latest experience is developing complex, market-oriented Android applications, converting Swift code to Kotlin, and troubleshooting bugs in Android applications. With expertise in Android engineering, I will resolve your app development needs while achieving the results expected from a senior professional.
I am reliable in working with minimal supervision and always conduct thorough research before reaching out with questions.
Responsive Design
Transact-SQL
Realm Database
PHP
Kotlin
Node.js
Java
JavaScript
UI Animation
Android App Development
Android Studio
Bluetooth
Servoy
Electron
Tcl/Tk
Oleg K.
Sunny Isles Beach, Florida
$90/hr
4.9
329 jobs
Top Rated Upwork premium freelancer, member of an Upwork PRO group.
12+ years of skill in full-stack website development (prototype, graphic design, front-end, back-end, SEO experience).
11+ years of solid commercial experience with WordPress and WooCommerce.
5+ years of experience with Laravel.
WORKING WITH ME YOU WILL GET:
โช custom creative professionally looking graphic design or theme/template modification;
โช responsive HTML (will pass Google mobile friendly test, work on any device and OS);
โช retina display support;
โช HTML5 animation if needed;
โช Wordpress/Woo back end; (experience with RTL sites);
โช WordPress multisite and membership; Buddypress and bbPress setup;
โช custom plugin development;
โช 3rd-party services and payment systems API integration;
โช SEO, make AMP compliant, ADA compliant, CDN (CloudFlare setup);
โช support;
โช warranty.
Front-end experience: HTML5 / CSS3, LESS, HTML5 animation, JS, jQuery, AJAX, JSON, Bootstrap, Angular 1-2-4, React, Vue.js.
Experience with Unix Server administration, Apache, Redis, nginx; Git, AWS, and cloud solutions.
You can always reach me via slack, email, or phone.
Tags: ACF, Avada, Custom plugin, Custom theme, Divi, Elementor, PHP, Web Developer, WordPress designer, WordPress Developer, WordPress Website Development.
WordPress
WooCommerce
PHP
WordPress Plugin
WordPress Development
Elementor
Divi
WordPress Theme
BuddyPress
WordPress Multisite
WordPress Customization
Web Design
CSS
JavaScript
HTML
Graphic Design
Avada Theme Customization
PSD to WordPress
Khurram Shamim K.
College Point, New York
$5/hr
5.0
1 jobs
Introduction: In the digital age, uninterrupted tech performance is not just a convenienceโitโs a necessity. Iโm here to offer you an elite IT remote technical support service that ensures your business never skips a beat.
About Me: With a decade of experience in the IT industry, Iโve honed my skills to address the most challenging tech issues businesses face today. My expertise spans across software troubleshooting, network management, and cybersecurity, making me your comprehensive tech support specialist.
Services Offered:
Immediate Assistance: I provide rapid response to all IT concerns, ensuring minimal downtime for your operations.
Proactive Maintenance: Stay ahead of issues with regular system checks and updates, tailored to your business needs.
Security First: Protect your digital assets with cutting-edge cybersecurity measures and regular vulnerability assessments.
Custom Solutions: Every business is unique, and so are its tech needs. I offer personalized support plans to fit your specific requirements.
Why Choose Me:
Certified Expertise: As a certified IT professional, I bring a wealth of knowledge and proven methodologies to the table.
Client-Centric Approach: Your satisfaction is my priority. I listen, adapt, and deliver solutions that align with your business goals.
Transparent Communication: Expect clear, jargon-free communication that keeps you informed every step of the way.
Testimonials: Donโt just take my word for it. Hereโs what my clients have to say:
โThanks to Khurram, our systems have never been more efficient. Their proactive approach has saved us countless hours and dollars.โ - Mats from Q-systems UK ltd
โKhurram transformed our IT support from a headache to a strategic advantage. Their expertise is unmatched.โ - SAM from Quadnet UK ltd
Call to Action: Ready to elevate your business with top-tier IT support? Contact me today, and letโs discuss how I can tailor my services to give you the peace of mind you deserve. Your tech worries end here.
Android SDK
Git
Windows Server
Server Virtualization
IT Sourcing
White Box Testing
Microsoft Server
Mail Server Implementation
SEO Writing
Microsoft Hyper-V Server
Leon M.
Sheridan, Wyoming
$150/hr
4.8
80 jobs
I am a Senior Software Architect specializing in Enterprise Mobile and Enterprise Web Application, SaaS, and API development. I am also the founder of my Upwork Agency, guaranteed.software. To compile a complete list of all skills I offer is now impractical, but below I highlight my skills which are possibly most relevant in today's market.
=============================================
Languages, Frameworks, and Libraries of expertise
=============================================
PHP - Symphony, Laravel, CodeIgniter, Cake, Zend, Magento, WordPress, WooCommerce
JAVASCRIPT - React (Native), Node.js, AngularJS, JQuery
PYTHON - Django, Web2P
JAVA - Spring, Hibernate, Play, Android SDK
HTML5, CSS3 - BOOTSTRAP
SASS/SCSS
LESS
=================
Data Persistance
=================
MongoDB
SQL - MySQL, PostgreSQL, OracleDB, MSSQL
Memcached
LDAP
File Systems
=============================
OS and Deployment Environment
=============================
*** OS ****************************
Unix - MacOS
Linux - Ubuntu, CentOS
Windows Server
************************************
*** Deployment Environment *******************************************
Dedicated Servers, VPS
Cloud-Based - AWS, Heroku, Google Cloud, Openshift, Docker
Web Servers - Apache, Ngix
*******************************************************************************
=======================
Testing
=======================
BDD: Behat, PHPSpec (PHP), JBehave (Java), behave (Python)
TDD: PHPUnit (PHP), JUnit (Java)
HTML & CSS Regression Testing: BackStopJS (CasperJS, PhantomJS, ResembleJS)
=========================
Additional Workflow Notes
=========================
Though this may seem like a lot of computer jargon, it is important to mention a few other details to development that are instrumental in allowing me to guide your project to success. I am more than happy to explain anything that you are uncertain about prior to starting the project and we can determine what is and is not essential.
I find that setting up bi-weekly, and sometimes daily 5 minute SCRUMs is very beneficial by keeping everyone on the same page. It is commonplace for us to use project management software on all projects. Currently, I prefer using Jira, Asana or Trello. If you don't have something like this already, I can set this up for you. For SCM, I typically use GIT on GitHub or BitBucket, often in conjunction with Hudson, Jenkins, or Travis CI. If you do not have these things set up, I can instantly get these rolling for you.
I am very comfortable with working in your own development environment, if it already exist, whether it is cloud-based like AWS or if it is on a VPS or Dedicated Server(s). I also maintain an internal development server which is ready for use in the case that you do not already have an established development environment.
Finally, comprehensive project estimation and consultation on the best approach to completing your project can be done in a separate, fixed-price project at $100 USD. Due to previous experience, It is no longer possible to offer consultation or any deliverables prior to being hired outside of the aforementioned arrangement.
I'm looking forward to providing you success, guaranteed!!!
PHP
Python
Magento
WordPress
MongoDB
MySQL
Responsive Design
Laminas
Symfony
Laravel
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