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Based on 8,762 client reviews
Harish K.

Mohali, India

$20/hr
4.4
349 jobs

I am a Full Stack Web & Mobile App Developer with expertise in Web Development, iOS & Android App Development (Top 3%), maintaining 100% Client Satisfaction on Upwork and successfully delivering hundreds of projects across industries. I am a Top-Rated Plus Mobile App Developer specializing in Flutter, React Native, iOS (Swift), Android (Kotlin) and Full-Stack Application Development. I build AI-powered mobile apps, real-time video streaming platforms, SaaS products, MVPs and on-demand service applications with scalable backend architectures using Node.js, NestJS, Laravel and Firebase. I have had the opportunity to work with numerous startups, scale-ups and enterprises, helping them design, develop, launch and scale high-performance mobile and web applications that work flawlessly across devices. ✅ I Can Help You With: - Mobile App Development with Web Admin Panel - MVP Development & SaaS Application Development - API Development & Third-Party Integrations - Node.js / NestJS Backend for Mobile & Web Apps - Laravel / PHP Backend Development - Firebase Integration (Auth, Firestore, Cloud Functions) - Payment Gateway Integration (Stripe, Razorpay, PayPal) - Real-Time Chat, Notifications & WebSocket Integration 💡 Having Expertise In: - AI-Powered Mobile Applications - Real-Time Video Streaming Apps - Live Streaming & Video Sharing Platforms - E-Learning & EdTech Applications - E-Commerce & Marketplace Apps - On-Demand Service Apps (Taxi, Food, Delivery, Booking) - Chat & Social Networking Apps - SaaS & Subscription-Based Platforms - Gamified Mobile Applications - AR/VR Mobile App Development - IoT & BLE-Based Mobile Applications 🎯Key Milestones: 🚀 Rewarded as 🏆 𝗧𝗢𝗣 𝗥𝗔𝗧𝗘𝗗 𝗣𝗟𝗨𝗦 🏆 by Upwork (𝗧𝗼𝗽 𝟯%) 🚀 7000+ personal hours on Upwork and still counting 🚀 100000+ agency hours on Upwork and still counting 🚀 100% Job Success (Client Satisfaction Ratio) 🚀 500+ jobs completed successfully as an Agency 🎯 Checkout my portfolio of apps on Upwork: Over the past decade, I have honed my skills in developing a diverse array of iPhone and Android applications Development ✅ Health and Fitness Apps ✅ GPS/ Geo Location Apps ✅ Trade Apps ✅ Homeowner/Contractor App ✅ Artificial Intelligence based Apps ✅ Bluetooth / BLE Integration Apps ✅ Food Delivery Apps ✅ Nutrition Planning Apps ✅ Restaurant Search Apps ✅ Salon Booking Apps ✅ Gym Booking Apps ✅ Taxi Apps ✅ AI Powered Apps ✅ E-commerce Apps ✅ Dating and TikTok Style Apps ✅ Video Streaming, Voice Calling, Chat and Messaging Apps ✅ Real Estate Apps ✅ Driver Instructor Finding Application ✅ Hotel and Travel Booking Apps ✅ E-Learning Mobile Application ✅ Wellness & Meditation Application ✅ NDI's Industry Applications 🎯 Areas of Expertise ◉ Mobile App Development: Swift, Objective C, Kotlin, Java, Jetpack ◉ Cross-Platform App Development: Flutter (Dart), React Native ◉ Backend Development: Node JS, Nest JS, Laravel, PHP, Express ◉ Frontend Development: React JS, Next JS, Angular, HTML5, CSS3 ◉ API Development & Integrations: REST APIs, AWS Lambda, API Gateway ◉ Databases & Cloud Storage: MySQL, MongoDB, Firebase, DynamoDB ◉ Real-Time App Features: Socket IO, Firebase Real Time Database, Twilio ◉ Payment Gateway Integration: Stripe, Razorpay, PayPal, Braintree ◉ Maps & Location Services: Google Maps, Apple Map Kit, GPS Tracking ◉ Version Control & Collaboration: GitHub, Bitbucket, GitLab I specialize in no-code/low-code development and AI integrations, allowing you to launch faster while keeping costs low without compromising quality. Additional Services that i am offering: - 6 Months Free Maintenance once the apps goes live on apple store and Google play store - Ownership/iP rights from the day one uploaded on the Client Github - Regular Updates & Scrum meetings. - Following Agile Scrum Methodology from day one - Strictly adhering to the Apple Guidelines and Google Guidelines. - Taking Complete responsibility of Deployment on both Apple store and Google Play store. I specialize in no-code/low-code development and AI integrations, allowing you to launch faster while keeping costs low without compromising quality. I work with tools like Bubble, FlutterFlow, Webflow and integrate powerful AI solutions using Claude, GPT and OpenAI APIs to build smart, automated systems. 🔹 What I Do - Full Stack Web & Mobile App Development - No-Code / Low-Code Development (Bubble, FlutterFlow, Webflow) - AI App Development & Integration (Claude AI, GPT-4/5, OpenAI API, Chatbots, Automation) - SaaS Application Development (Subscription Models, Multi-Tenant Systems) - API Integration (Payment gateways, third-party services) - Dashboard & Admin Panel Development - Workflow Automation (Zapier, Make, AI Automation Systems)) - UI/UX Design (Figma) 👉 Let’s start with a FREE 15–30 minute consultation to discuss your project and define the best approach. Contact us today to discuss your project requirements.

  • Flutter
  • iOS Development
  • Smartphone
  • User Profile Creation
  • Android App Development
  • iOS
  • Mobile App Development
  • Chat & Messaging Software
  • User Authentication
  • Hybrid App Development
  • In-App Purchases
  • Web Development
  • React Native
  • Android
  • AI Chatbot
  • React
  • JavaScript
  • iPad App Development
  • API
  • API Integration
Dhaval S.

Ahmedabad, India

$25/hr
4.8
597 jobs

I am the agency owner of Nyusoft Solutions. I am handling Project Management, Project scope, Guiding team, How to follow Agile methodology and features requested by client in project scope. 🥇🥇🥇 TOP-RATED PLUS FREELANCER 🥇🥇🥇 🥇🥇🥇 100% Client Satisfaction🥇🥇🥇 🥇🥇🥇 AI Agent and Automation Expert🥇🥇🥇 🥇🥇🥇 Industry Expertise🥇🥇🥇 🥇🥇🥇 Top 1% Talent on Upwork🥇🥇🥇 "A Proud Member of BNI - Ahmedabad | Gujarat." "5🌟Ratings on Clutch" Why you should choose me: —----------------------------- 🌟 Agile Approach 🌟 Daily / Weekly Call for project status 🌟 100% transparency, no unrealistic commitment. 🌟 No Advance Payment 🌟 UNLIMITED DESIGN REVISION for your utmost satisfaction 🌟 6 months of FREE Support. Industries We Serve —----------------------------- o Edtech o Fintech o Realtech o Healthcare o Fitness / Wellness o Sports o Travel o Entertainment o Furniture Solutions We Provide —----------------------------- o Agent AI Services (Claude, OpenClaw etc.) o AI-Powered Automation o Machine Learning Solutions (ML) o AI Development Services o NLP Development o LLM Integrations o Deep Learning Solutions o AI Chatbots & Virtual Assistants o Image, Video & OCR Solutions o SaaS Product Development o Mobile Apps Development o Ui/UX Implementation o AWS DevOps Development Technologies We Serve in Mobile apps(IOS and Android) and Website/Web applications and Software development --------------------------------------------------------------------------------------------------------------- - Full Stack and MERN Stack Development o React JS o Node JS o NextJS / NestJS o Python / Django o Node JS o Vue JS o Laravel - Mobile Apps Development o React Native o Flutter 🎯 Areas of Expertise ◉ Mobile App Development: Swift, Objective C, Kotlin, Java, Jetpack ◉ Cross-Platform App Development: Flutter (Dart), React Native ◉ Backend Development: Node JS, Nest JS, Laravel, PHP, Express ◉ Frontend Development: React JS, Next JS, Angular, HTML5, CSS3 ◉ API Development & Integrations: REST APIs, AWS Lambda, API Gateway ◉ Databases & Cloud Storage: MySQL, MongoDB, Firebase, DynamoDB ◉ Real-Time App Features: Socket IO, Firebase Real Time Database, Twilio ◉ Payment Gateway Integration: Stripe, Razorpay, PayPal, Braintree ◉ Maps & Location Services: Google Maps, Apple Map Kit, GPS Tracking ◉ Version Control & Collaboration: GitHub, Bitbucket, GitLab - AI/ML/ChatGPT integration with platforms(Web and mobile applications) "We create things that make a difference, not just to get a job done." I appreciate that you have taken a step to review my profile. Regards, Dhaval Shah ( Founder & CEO) Nyusoft Solutions LLP

  • AI Development
  • React Native
  • PHP
  • Mobile App Development
  • React
  • Node.js
  • Laravel
  • MERN Stack
  • Software Development
  • Web Development
  • Web Design
  • iOS
  • OpenAI API
  • Android App
  • AI Mobile App Development
  • AI Agent Development
  • AI Chatbot
  • iOS Development
  • Android App Development
  • iPad App Development
Marcos M.

San Francisco, California

$75/hr
4.9
379 jobs

Have an app idea but not sure where to start? A few years ago, I was sitting exactly where many of my clients are today: trying to turn an idea into an app. After years of mistakes and learning to code, I ended up building SchooLinks, which grew into an Inc. 5000 business and raised over $90 million. Since then, I focus on designing and developing apps for founders and entrepreneurs with no technical background. People who have identified a problem that an app could solve, but they don't know how to build it. They have the vision, but they don't have the tech partner. And these are the results my clients have gotten: • $350M+ raised by clients • 2M+ users across products built • 10K+ five-star reviews across products built • Top 1% in App Design & Development on Upwork Book a consultation with me today! I’ll save you months of frustration by helping you understand the ins and outs of bringing an app to life: How much it costs, how long it takes, what’s the process and more. The apps I’ve built usually come in the form of: SaaS platforms, internal platforms, Mobile & web apps, Marketplace apps. Trusted By: Harvard, Samsung, Indeed, Yamaha, University of South Florida, and more. Technologies: OpenAI, Claude, Gemini, Flutter, Node.js, Angular, AWS, MongoDB, Figma If you’re serious about building your app the right way, let’s talk!

  • Mobile App Design
  • Mobile App Redesign
  • UI/UX Prototyping
  • Android
  • iOS
  • Web Application
  • Mobile App Development
  • Front-End Development
  • UX & UI
  • User Experience Design
  • iOS Development
  • Android App Development
  • Software Development
  • JavaScript
  • User Authentication
Vikram S.

Mohali, India

$15/hr
4.9
42 jobs

✋Hello, I am a Mobile App Developer specializing in building scalable, high-performance iOS and Android applications with modern UI/UX, clean architecture, and seamless user experiences. I help startups, businesses, and enterprises transform ideas into fully functional mobile products using Flutter, React Native, Swift, Kotlin, Firebase, and cloud-based technologies. With strong experience in cross-platform and native mobile development, I develop mobile applications that are visually polished, technically reliable, and optimized for long-term scalability. My focus is not only on writing clean code, but also on creating intuitive user experiences that improve engagement, retention, and overall business growth. I specialize in: • Mobile App Development • iOS App Development • Android App Development • Flutter Development • React Native Development • UI/UX Design for Mobile Apps • SaaS and Startup MVP Development • AI-Powered Mobile Applications • Firebase & Cloud Integrations • API Development & Third-Party Integrations • Subscription & Payment Systems • Real-Time Features & Notifications I build a wide range of mobile applications including: • Booking & Appointment Apps • Marketplace Platforms • AI Chat & Productivity Apps • Healthcare & Telemedicine Apps • Education & E-Learning Platforms • Logistics & Transportation Apps • Fitness & Wellness Applications • Social Networking & Community Apps • Ecommerce Mobile Apps • On-Demand Service Platforms My technical expertise includes Flutter, Dart, Swift, Kotlin, Java, React Native, Firebase, Node.js, REST APIs, GraphQL, Google Maps API, Stripe, PayPal, RevenueCat, OpenAI API, Push Notifications, Geolocation Systems, and cloud infrastructure solutions. I have experience building mobile apps with: • Authentication systems • Subscription models • Real-time chat and notifications • Payment gateways • GPS and route tracking • AI integrations and automation • Admin dashboards • Scalable backend architecture • Analytics and performance optimization I strongly focus on performance, scalability, and user experience throughout the entire development lifecycle. Every application is developed with clean architecture, responsive design, optimized performance, and maintainable code standards to ensure future scalability and smooth deployment. My development process includes: • Product strategy and planning • Wireframing and UI/UX optimization • Agile mobile app development • API and backend integrations • QA testing and performance improvements • App Store & Google Play deployment • Ongoing maintenance and feature expansion I value clear communication, realistic timelines, and long-term collaboration. Whether you need an MVP for a startup, a scalable SaaS platform, or a feature-rich enterprise application, I can help bring your vision to life with modern mobile technologies and user-focused development. My goal is to build mobile applications that are not only technically strong, but also intuitive, scalable, and impactful for users and businesses alike. Thanks, Vikram

  • Mobile App Development
  • iOS Development
  • Android App Development
  • Flutter
  • Kotlin
  • Swift
  • Native App Development
  • API Integration
  • Firebase
  • React Native
  • App Store Optimization
  • App Design
  • Figma
  • FlutterFlow
  • AI Agent Development
  • AI App Development
  • Native App
  • Hybrid App
  • Mobile App Redesign
  • App Feature Development
Sohaib Ahmed S.

Karachi, Pakistan

$15/hr
4.9
87 jobs

🏆 𝐒𝐞𝐧𝐢𝐨𝐫 𝐑𝐞𝐚𝐜𝐭 𝐍𝐚𝐭𝐢𝐯𝐞 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 (𝟏𝟎+ 𝐘𝐞𝐚𝐫𝐬) 📱 𝟓𝟎+ 𝐌𝐨𝐛𝐢𝐥𝐞 𝐀𝐩𝐩𝐬 𝐃𝐞𝐥𝐢𝐯𝐞𝐫𝐞𝐝 🌐 𝟐𝟎+ 𝐖𝐞𝐛𝐬𝐢𝐭𝐞𝐬 𝐂𝐨𝐦𝐩𝐥𝐞𝐭𝐞𝐝 🏆 𝐓𝐨𝐩 𝐑𝐚𝐭𝐞𝐝 𝐋𝐚𝐫𝐚𝐯𝐞𝐥 𝐄𝐱𝐩𝐞𝐫𝐭 💼 𝟖𝟎+ 𝐉𝐨𝐛𝐬 𝐂𝐨𝐦𝐩𝐥𝐞𝐭𝐞𝐝 ⭐ 𝟒𝟎+ 𝐑𝐞𝐯𝐢𝐞𝐰𝐬 ⭐ 𝟓★ 𝐂𝐥𝐢𝐞𝐧𝐭 𝐑𝐚𝐭𝐢𝐧𝐠 𝐇𝐢, 𝐈’𝐦 𝐒𝐨𝐡𝐚𝐢𝐛 👋 I’m a 𝐑𝐞𝐚𝐜𝐭 𝐍𝐚𝐭𝐢𝐯𝐞 𝐝𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 with over 10+ 𝐲𝐞𝐚𝐫𝐬 of experience building 𝐦𝐨𝐛𝐢𝐥𝐞 𝐚𝐩𝐩𝐬 for both 𝐢𝐎𝐒 and 𝐀𝐧𝐝𝐫𝐨𝐢𝐝. I also specialize in 𝐋𝐚𝐫𝐚𝐯𝐞𝐥 for 𝐛𝐚𝐜𝐤𝐞𝐧𝐝 𝐝𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 and creating clean, professional 𝐖𝐨𝐫𝐝𝐏𝐫𝐞𝐬𝐬 𝐰𝐞𝐛𝐬𝐢𝐭𝐞𝐬. 𝐇𝐞𝐫𝐞’𝐬 𝐰𝐡𝐚𝐭 𝐈 𝐛𝐫𝐢𝐧𝐠 𝐭𝐨 𝐭𝐡𝐞 𝐭𝐚𝐛𝐥𝐞: ✅ 𝐑𝐞𝐚𝐜𝐭 𝐍𝐚𝐭𝐢𝐯𝐞 – I build fast, smooth, and user-friendly mobile apps for iOS and Android ✅ 𝐋𝐚𝐫𝐚𝐯𝐞𝐥 – I develop secure, scalable, and well-structured backend systems ✅ 𝐖𝐨𝐫𝐝𝐏𝐫𝐞𝐬𝐬 – I design and develop modern, responsive, and high-performing websites 𝐖𝐡𝐚𝐭 𝐘𝐨𝐮’𝐥𝐥 𝐁𝐞𝐧𝐞𝐟𝐢𝐭 𝐅𝐫𝐨𝐦 𝐖𝐨𝐫𝐤𝐢𝐧𝐠 𝐖𝐢𝐭𝐡 𝐌𝐞: ✅ Clean, well-organized code that’s easy to maintain and scale ✅ Apps and websites that perform well and provide a great user experience ✅ Regular communication and clear project updates ✅ On-time delivery with proper testing and bug fixes ✅ Honest feedback and practical suggestions to improve your project ✅ Post-delivery support until everything works perfectly 𝐑𝐞𝐚𝐜𝐭 𝐍𝐚𝐭𝐢𝐯𝐞 𝐌𝐨𝐛𝐢𝐥𝐞 𝐀𝐩𝐩 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 𝐒𝐞𝐫𝐯𝐢𝐜𝐞𝐬: ✅ 𝐑𝐞𝐚𝐜𝐭 𝐍𝐚𝐭𝐢𝐯𝐞 mobile app development for 𝐢𝐎𝐒 & 𝐀𝐧𝐝𝐫𝐨𝐢𝐝 ✅ Modern 𝐑𝐞𝐚𝐜𝐭 𝐍𝐚𝐭𝐢𝐯𝐞 architecture with 𝐓𝐲𝐩𝐞𝐒𝐜𝐫𝐢𝐩𝐭, 𝐑𝐞𝐝𝐮𝐱, 𝐙𝐮𝐬𝐭𝐚𝐧𝐝 ✅ 𝐅𝐢𝐫𝐞𝐛𝐚𝐬𝐞 integration (Auth, Firestore, Notifications, Analytics) ✅ 𝐏𝐚𝐲𝐦𝐞𝐧𝐭 integration (Stripe, Apple Pay, Google Pay) ✅ 𝐀𝐏𝐈 integration & third-party services (Maps, Social Login) ✅ 𝐏𝐮𝐬𝐡 𝐍𝐨𝐭𝐢𝐟𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬, 𝐃𝐞𝐞𝐩 𝐋𝐢𝐧𝐤𝐢𝐧𝐠, real-time features ✅ 𝐏𝐞𝐫𝐟𝐨𝐫𝐦𝐚𝐧𝐜𝐞 𝐨𝐩𝐭𝐢𝐦𝐢𝐳𝐚𝐭𝐢𝐨𝐧 for fast & smooth apps ✅ 𝐑𝐞𝐚𝐜𝐭 𝐍𝐚𝐭𝐢𝐯𝐞 upgrades & migration to latest version ✅ 𝐁𝐮𝐠 𝐟𝐢𝐱𝐢𝐧𝐠, maintenance & long-term support ✅ 𝐀𝐩𝐩 𝐃𝐞𝐩𝐥𝐨𝐲𝐦𝐞𝐧𝐭 + 𝐀𝐩𝐩 𝐀𝐩𝐩𝐫𝐨𝐯𝐚𝐥 𝐅𝐢𝐱𝐞𝐬 (App Store & Play Store) 𝐋𝐚𝐫𝐚𝐯𝐞𝐥 𝐁𝐚𝐜𝐤𝐞𝐧𝐝 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 𝐒𝐞𝐫𝐯𝐢𝐜𝐞𝐬: ✅ 𝐋𝐚𝐫𝐚𝐯𝐞𝐥 backend solutions for scalable web & mobile apps ✅ 𝐑𝐄𝐒𝐓 𝐀𝐏𝐈 development with secure & well-structured architecture ✅ 𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞 design & optimization (MySQL, PostgreSQL) ✅ 𝐀𝐮𝐭𝐡𝐞𝐧𝐭𝐢𝐜𝐚𝐭𝐢𝐨𝐧 systems (JWT, OAuth, RBAC) ✅ 𝐏𝐚𝐲𝐦𝐞𝐧𝐭 integration (Stripe, PayPal, Razorpay) ✅ 𝐀𝐝𝐦𝐢𝐧 𝐏𝐚𝐧𝐞𝐥𝐬 & 𝐃𝐚𝐬𝐡𝐛𝐨𝐚𝐫𝐝𝐬 (Nova, Filament, custom) ✅ 𝐀𝐏𝐈 & 𝐓𝐡𝐢𝐫𝐝-𝐏𝐚𝐫𝐭𝐲 integrations (CRM, Email, SMS) ✅ 𝐏𝐞𝐫𝐟𝐨𝐫𝐦𝐚𝐧𝐜𝐞 optimization & scaling (Redis, Queues) ✅ 𝐁𝐮𝐠 𝐅𝐢𝐱𝐢𝐧𝐠, maintenance & long-term support ✅ 𝐋𝐚𝐫𝐚𝐯𝐞𝐥 upgrades & migration (latest versions) 𝐖𝐨𝐫𝐝𝐏𝐫𝐞𝐬𝐬 𝐖𝐞𝐛𝐬𝐢𝐭𝐞 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 𝐒𝐞𝐫𝐯𝐢𝐜𝐞𝐬: ✅ 𝐖𝐨𝐫𝐝𝐏𝐫𝐞𝐬𝐬 website development using Elementor & modern UI/UX ✅ Custom 𝐖𝐨𝐫𝐝𝐏𝐫𝐞𝐬𝐬 development (HTML, CSS, JavaScript customization) ✅ 𝐖𝐨𝐫𝐝𝐏𝐫𝐞𝐬𝐬 website setup, migration, cloning & deployment ✅ 𝐖𝐨𝐫𝐝𝐏𝐫𝐞𝐬𝐬 theme customization & premium theme development ✅ 𝐖𝐨𝐫𝐝𝐏𝐫𝐞𝐬𝐬 speed optimization (fast loading & performance tuning) ✅ Technical 𝐖𝐨𝐫𝐝𝐏𝐫𝐞𝐬𝐬 SEO (90+ desktop, 80+ mobile scores) ✅ 𝐖𝐨𝐫𝐝𝐏𝐫𝐞𝐬𝐬 bug fixing, error resolution & site maintenance ✅ 𝐖𝐨𝐫𝐝𝐏𝐫𝐞𝐬𝐬 security setup (SSL, backups, protection) ✅ 𝐖𝐨𝐫𝐝𝐏𝐫𝐞𝐬𝐬 integrations (Analytics, Chat plugins, SMTP, Contact Forms) ✅ Fully responsive 𝐖𝐨𝐫𝐝𝐏𝐫𝐞𝐬𝐬 websites optimized for conversion 𝐒𝐨𝐥𝐮𝐭𝐢𝐨𝐧𝐬 𝐈 𝐏𝐫𝐨𝐯𝐢𝐝𝐞: ✅ 𝐑𝐞𝐚𝐥 𝐄𝐬𝐭𝐚𝐭𝐞 & 𝐂𝐨𝐦𝐦𝐞𝐫𝐜𝐢𝐚𝐥 𝐏𝐥𝐚𝐭𝐟𝐨𝐫𝐦𝐬 Property listing systems, rental management platforms, and comprehensive dashboards for handling listings, clients, leads, and inquiries. ✅ 𝐇𝐞𝐚𝐥𝐭𝐡 & 𝐅𝐢𝐭𝐧𝐞𝐬𝐬 𝐀𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬 Mobile-friendly applications for workout tracking, progress monitoring, subscription management, and user engagement. ✅ 𝐄-𝐜𝐨𝐦𝐦𝐞𝐫𝐜𝐞 & 𝐋𝐨𝐠𝐢𝐬𝐭𝐢𝐜𝐬 𝐒𝐲𝐬𝐭𝐞𝐦𝐬 Online stores, order management systems, delivery tracking solutions, and backend platforms for smooth and efficient operations. ✅ 𝐁𝐮𝐬𝐢𝐧𝐞𝐬𝐬 𝐏𝐨𝐫𝐭𝐚𝐥𝐬 & 𝐃𝐚𝐬𝐡𝐛𝐨𝐚𝐫𝐝𝐬 Custom admin panels and dashboards to manage users, data, and business workflows efficiently. I provide ongoing support, updates, and improvements to keep your system running smoothly. Let’s work together to turn your idea into a reliable, user-friendly product. Feel free to message me — I’d be happy to discuss your project. Thanks. 𝐒𝐎𝐇𝐀𝐈𝐁 𝐀𝐇𝐌𝐄𝐃 𝐒𝐈𝐃𝐃𝐈𝐐𝐔𝐈 𝐑𝐞𝐚𝐜𝐭 𝐍𝐚𝐭𝐢𝐯𝐞 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 | 𝐋𝐚𝐫𝐚𝐯𝐞𝐥 𝐄𝐱𝐩𝐞𝐫𝐭 | 𝐖𝐨𝐫𝐝𝐏𝐫𝐞𝐬𝐬 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫

  • Mobile App
  • React
  • React Native
  • JavaScript
  • Web Application
  • Mobile App Development
  • Native App Development
  • iOS Development
  • Android App
  • Android App Development
  • Mobile App Design
  • Laravel
  • PHP
  • WordPress
  • WordPress Development
  • WordPress Website
  • WordPress Optimization
  • WordPress Website Design
  • WordPress Migration
  • WordPress Landing Page
Andrey C.

Los Angeles, California

$35/hr
4.8
97 jobs

🅷🅴🆈 👋 Hi! I’m a veteran full stack developer, mobile app developer, and team lead leading a senior long-term team capable of taking products from idea → launch → scale → maintenance. I’ve been in professional software development for 25+ years and mobile app development for 17+ years, delivering scalable iOS Development, Android App Development, Flutter, React Native, and backend-driven platforms across startups, SaaS products, enterprises, and high-growth mobile ecosystems. Clients usually come to us when they need more than just coding - they need a technical partner who understands architecture, business logic, scalability, monetization, and long-term product growth. As a mobile application developer, ios developer, android developer, flutter developer, and full stack developer, I specialize in building high-performance native and cross-platform mobile apps used by millions of users worldwide. I work with native iOS development using Swift, SwiftUI, UIKit, and Objective-C, native Android development with Kotlin and Java, as well as Flutter, React Native, and hybrid app development for scalable cross-platform delivery. Over the years, I’ve helped build 700+ apps across fintech, healthcare, social networking, education, entertainment, e-commerce, IoT, and enterprise SaaS. My experience covers the full mobile app development lifecycle - system architecture, UI/UX implementation, backend development, API Integration, DevOps, deployment, scaling, optimization, and long-term product evolution. 🏆 Why Clients Choose Me ✔️ 25+ years as a full stack developer and software architect
 ✔️ 17+ years in mobile app development
 ✔️ 700+ mobile apps delivered across iOS, Android, Flutter & React Native
 ✔️ Expertise in native app development, hybrid app development, and scalable backend systems
 ✔️ Reduced crash rates by up to 70% and improved app performance by 50% on production apps
 ✔️ Built mobile platforms used by 5M+ users worldwide
 ✔️ Strong experience with Mobile App Improvement, Mobile App Bug Fix, and modernization projects
 ✔️ Long-term experience with startups, SaaS companies, enterprises, and Fortune 500 clients
 ✔️ Full-cycle delivery: architecture → development → deployment → scaling → support 📱 Native iOS & Android Development • Native iOS Development with Swift, SwiftUI, UIKit, Combine, Objective-C • Native Android App Development with Kotlin, Java, Jetpack Compose • Smartphone app optimization for performance, UX, and scalability • Clean Architecture, MVVM, VIPER, modular app structures • Device integrations: BLE, GPS, biometrics, camera, sensors, HealthKit, Google Fit • App Store & Google Play deployment pipelines • Multi-language apps with localization and accessibility support • Advanced performance optimization and memory management 🔁 Cross-Platform & Hybrid App Development • Flutter developer expertise for scalable cross-platform products • React Native development with custom native module integrations • Kotlin Multiplatform Mobile (KMM/KMP) • Shared business logic across iOS and Android • Adaptive UI systems and responsive mobile layouts • Cross-platform architectures reducing development time by 40–60% 🔧 Backend, API Integration & Infrastructure • REST API and GraphQL API Integration • Firebase, Node.js, PHP, and scalable backend services • Authentication systems, caching, offline sync, token management • SQLite, Room, Realm, Core Data • Push notifications: FCM, APNS, OneSignal • Real-time chat, geolocation systems, dashboards, and live data platforms • Backend-connected mobile ecosystems with scalable cloud infrastructure ⚙️ DevOps, CI/CD & Delivery • Fastlane, GitHub Actions, Bitrise, Firebase App Distribution • Automated testing and deployment pipelines • Beta testing, crash analytics, staged rollouts • CI/CD optimization for faster and safer release cycles • AWS and scalable cloud deployment workflows 📊 Analytics & Monetization • Firebase Analytics, Mixpanel, Amplitude, Google Analytics • In-app purchases, subscriptions, AdMob, Facebook Ads • Retention optimization and funnel analytics • Data-driven product iteration and growth optimization 🔌 Advanced SDK & Hardware Integrations • AVFoundation, CameraX, Core Bluetooth, Core Motion • Stripe, Twilio, Agora, Sendbird, Mapbox, OpenCV • IoT dashboards, BLE integrations, voice/video systems • Camera-heavy and sensor-based mobile applications 🌍 Industries Served • Fintech & Banking • Healthcare & Fitness • E-commerce & Retail • Smart Home & IoT • Education & E-learning • Social Networking • Travel & Hospitality • Entertainment & Media • SaaS & Enterprise Platforms ✅ Let’s Build a Mobile Product That Scales!

  • Mobile App Development
  • iOS Development
  • Android App Development
  • iPad App Development
  • Android
  • iOS
  • Smartphone
  • Flutter
  • Swift
  • Objective-C
  • Firebase
  • Apple Xcode
  • In-App Purchases
  • API Integration
  • Hybrid App Development
  • User Authentication
  • User Profile Creation
  • JavaScript
  • React Native
  • Kotlin

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