Hire the Best Mobile Freelancers
in the United States

Clients rate our Mobile professionals
Rating is 4.8 out of 5.
4.8/5
Based on 164 client reviews
William King L.

San Francisco, California

$18/hr
5.0
2 jobs

I turn messy data and manual, repetitive work into clean, automated systems that save you hours every week. Technical freelancer with a Management Information Systems degree (Ateneo de Manila) and 7+ years in product management, technical pre-sales, and software delivery at fintech and IT firms - including GCash / Globe Fintech (Mynt). I have shipped real products end to end, so I focus on your goal, not just the task. WHAT I DO BEST - Excel & Google Sheets automation - dashboards, formulas (VLOOKUP/XLOOKUP, INDEX-MATCH, SUMIFS), pivot tables, auto-calculating templates, and reporting - Data cleaning & entry - accurate, fast, de-duplicated, and consistently formatted - Merge, clean & de-duplicate spreadsheets - turn messy multi-file data into one reliable master sheet - Google Apps Script automation - auto-emails, scheduled triggers, PDF generation, sheet-to-sheet sync - Custom Python scripts - process or convert data, organize files, collect data into CSVs, and small automations - Live crypto & stock trackers in Google Sheets - watchlists, portfolio profit/loss, and trading journals (I am an active trader) - PDF / image to clean Excel or Word - typed and checked by hand, not just auto-converted - Lead lists & web research - verified, sourced, ready-to-use spreadsheets - Website features & fixes - contact forms, maps, chat buttons, landing pages, plus speed & mobile fixes (HTML/CSS/JS, React/Next.js) WHY CLIENTS WORK WITH ME - Business + technical background - I translate a real-world need into a working solution - Clear communication and fast replies - I confirm anything unclear before guessing - Detail-oriented - every entry, formula, and result is double-checked - Reliable delivery - on time, with a short how-it-works note so you can run it yourself BACKGROUND & CERTIFICATIONS BS Management Information Systems (Ateneo de Manila). Product Manager at Mynt / GCash. Technical Pre-Sales Engineer. ITIL Foundation certified. Most recently, Project Director of iCASH - I-Remit's e-wallet - leading development, marketing, and partnerships from concept to production launch, reporting directly to the President. Available 30+ hrs/week and responsive across time zones. Tell me the task, the source, and the result you want - and I will take it from there. Send me a message with what you need and I will reply with a clear plan and timeline.

  • Data Entry
  • Microsoft Excel
  • Google Sheets
  • Web Scraping
  • Data Cleaning
  • Data Visualization
  • Automation
  • Python
  • Google Apps Script
  • Data Analysis
  • Data Extraction
  • Lead Generation
  • Microsoft Power BI
  • PDF Conversion
  • Spreadsheet Macros
  • Dashboard
Rizwan A.

Antelope, California

$40/hr
5.0
8 jobs

🚀 Senior Mobile App Developer | 🤖 AI Apps | ⚛️ React Native (Expo) | 🛠️ Flutter | 📱 Android & iOS Hi, I'm Rizwan, a Top Rated Plus Mobile App Developer with 10+ years of experience building high-quality Android and iOS applications for startups, SaaS companies, and enterprises. I specialize in React Native (Expo), Flutter, Kotlin, and Swift, delivering fast, scalable, and user-friendly mobile apps. Whether you need an MVP, a production-ready application, or long-term development support, I focus on clean architecture, smooth performance, and exceptional UI/UX. Beyond mobile development, I build AI-powered applications by integrating OpenAI, Claude, Gemini, and AI Agents to create intelligent chatbots, automation workflows, personalized experiences, and smart business solutions. 💼 Services I Offer ✅ React Native (Expo & Bare Workflow) ✅ Flutter Development ✅ Android (Kotlin) & iOS (Swift) ✅ AI-Powered Mobile Apps ✅ OpenAI, Claude & Gemini Integration ✅ AI Agents & Workflow Automation ✅ Firebase & Supabase Integration ✅ REST API & Backend Integration ✅ Stripe, RevenueCat & In-App Purchases ✅ Push Notifications & Real-Time Features ✅ UI/UX Design & App Optimization ✅ App Store & Google Play Deployment ⭐ Why Work With Me? ✔️ 10+ Years of Professional Experience ✔️ Top Rated Plus Freelancer ✔️ 100% Job Success ✔️ $40K+ Earned on Upwork ✔️ 1,400+ Hours Worked ✔️ Clean, Scalable & Maintainable Code ✔️ Fast Communication & Reliable Delivery 🚀 Recent Experience • Bitcoin Analytics & Financial Intelligence Platform (React Native + Expo) • AI-Powered Calorie Tracking Application • GPS Tracking & Location-Based Mobile Apps • Cross-Platform Mobile Applications for Startups & Businesses Whether you're launching a startup, modernizing an existing app, or adding AI-powered features, I can help transform your idea into a reliable, production-ready product. I work with React Native, Expo, Flutter, Android, iOS, Firebase, Supabase, Stripe, RevenueCat, OpenAI, Claude, and Gemini to build scalable mobile applications that deliver outstanding user experiences. Let's discuss your project and build something exceptional together!

  • Native App Development
  • Mobile App Development
  • Flutter
  • React Native
  • Mobile App Development Consultation
  • AI Mobile App Development
  • Mobile App Improvement
  • Mobile App Bug Fix
  • Native App
  • Flutter Stack
  • Mobile App Design
  • UX & UI
  • UI/UX Prototyping
  • UI Graphics
  • Mockup
Max G.

Washington, District Of Columbia

$135/hr
4.9
303 jobs

I am a seasoned IT professional. My specialty is Apple with over a decade of experience with MacOS and iOS support, MDM deployment (Mosyle, JAMF, Addigy, SimpleMDM, etc.), Apple Business Manager, much more. I also have extensive experience in Cloud IT, including Microsoft 365, Google Workspace, and utilizing AWS to implement custom coded automation and integration across platforms tailored to the particular needs of your business.

  • Mobile Device Management
  • macOS
  • iPhone
  • iOS
  • JAMF
  • Amazon S3
  • Automation
  • PHP
  • API
Samea A.

Clarksburg, Maryland

$15/hr
5.0
56 jobs

Hi there! 👋 I'm Samea Ahmadi, a dedicated App & Product Testing professional with a sharp eye for detail and a strong focus on real user experience. With over 5 years of experience, I help developers, startups, and e-commerce brands ensure their apps and products are user-friendly, bug-free, and ready for the market. I don’t just click around — I analyze how real users will interact with your product. My feedback is always practical, honest, and actionable. ✅ What I Offer: - Mobile App Testing (iOS & Android): Functional, usability, and UI testing - Product Testing (Physical & eCommerce): Testing Amazon and online products as a real customer - Detailed Feedback & Honest Reviews based on real user experience - Bug Identification & Improvement Suggestions - Test Reports with Screenshots or Screen Recordings - Unboxing Experience & First Impressions Testing - Fast Turnaround, Clear Communication, and NDA-friendly service Fast turnaround and clear communication I’ve tested apps for both iOS and Android, and I understand how crucial user feedback is in the development process. Whether you’re launching a new feature or validating your MVP, I’ll help you move forward with confidence. 📩 Ready to make your app or product better? Let’s talk!

  • Testing
  • QA Testing
  • Mobile App
  • iOS
  • Android
  • Amazon
  • A/B Testing
  • Product Testing
  • Expert
  • Email
  • Product Video
  • Mobile QA
  • Mobile App Testing
Shivani V.

Irving, Texas

$50/hr
5.0
41 jobs

With 5+ years of professional experience in software (website, front-end, back-end, web app) development with a diverse background spanning multiple industries and roles. Throughout my career, I've demonstrated proficiency in full-stack development, system integration, and project management. My diverse experiences have equipped me with a unique skill set to tackle complex challenges and deliver innovative solutions. Technical Proficiencies: Website Technologies: Shpoify, WordPress Frontend Technologies: React, React Native, Flutter, HTML, CSS Backend Technologies: Node.js, Nest.js, TypeScript, JavaScript, Express.js, AWS, MongoDB Database Management: MySQL, PostgreSQL, JSON, Database Schema Design Architectural Patterns: MVC, Event-Driven Architecture, Serverless Architecture, Clean Architecture, GraphQL Mobile Development: iOS SDK, Swift, Objective C, Apple XCode, Android SDK, Kotlin, Java Android Studio Mobile Libraries & APIs: Alamofire, SDWebImage, Cocoapods, SQLite, Core Data Web Services & APIs: RESTful API development, Firebase Cloud Messaging, In-App Purchase Integration Code Optimization: Performance tuning, Design patterns, Material Design, Custom UI Elements, Animation Cloud Services: Firebase Analytics, Database, Storage, Hosting, Crash Reporting, AWS, DigitalOcean Social Integrations: Facebook, Twitter, Google SDK Additional Skills: Web Scraping, Image Processing, Deep Linking, Content Provider, BroadcastReceiver, Background Services Tools: Git, Github, Bitbucket, Sketch, Photoshop ----------------------------------------------------- Full Stack Development Expert, Front-end Developer, Back-end Developer, Web App Development, Mobile App Development, React, React.js, Node.js, Nest.js, Nuxt.js, Express.jsJavascript, Typescript, HTML, CSS, CSS3, PHP, Python, API Development, API Integration, RESTful API, Third-Party SDK Integration, Firebase, Firebase Firestore, Analytics, Crashlytics, Cloud Services, AWS, Amazon Web Services, Database Design, Database Management, Mobile App Development, Native App Development, Android Mobile App Development, iOS Mobile App Development, Cross-Platform Mobile App Development, Flutter Mobile App Development, Dart, Java, Kotlin, Swift, SwiftUI, ChatGPT API Integration, Web Development, Web Application, Website Redesign, Website Optimization, Database Development, OpenAI, Agile Software Development, Google Analytics, Google Cloud Platform, RESTful Architecture, Amazon DynamoDB, SQLite, MySQL, MongoDB, Realm Database, PostgreSQL, Firebase Realtime Database, Node.js Framework, Back-End Development, API, React, Front-End Development, Full-Stack Development

  • Web Development
  • React Native
  • React
  • Mobile App Development
  • Web Application Development
  • Front-End Development
  • Full-Stack Development
  • Back-End Development
  • UI/UX Prototyping
  • OpenAI API
  • Spring Boot
  • Java
  • AI App Development
  • AI Mobile App Development
  • ChatGPT API Integration
Marissa M.

Concord, New Hampshire

$30/hr
5.0
7 jobs

I graduated in 2017 with my Bachelors in Game Design and Development, and went back to school for a Bachelors in Game Art. In my daily life I work professionally as a Graphic Designer, and look forward to helping you with your projects as well as expand my portfolio in both marketing and gaming!

  • Adobe Photoshop
  • User Interface Design
  • C#
  • Illustration
  • 2D Game Art
  • Pixel Art
  • Logo Design
  • Unity
  • Graphic Design
  • Adobe Illustrator
  • Adobe InDesign
  • Website Maintenance
  • Brand Marketing
  • Marketing
  • Print Marketing Materials
  • Game UI/UX Design
  • Game Design Document
  • Canva

How it works

Post a job for freePost a job

Tell us what you need. Create your own job post or generate one with AI then filter talent matches.

Hire top talent fast

Consult, interview, and hire quickly, so you can meet the freelancers you're excited about.

Collaborate easily

Use Upwork to chat or video call, share files, and track project progress right from the app.

Payment simplified

Manage payments in one place with flexible billing options. Only pay for approved work, hourly or by milestone.

Don't just take our word for it

How do I hire a Mobile Freelancer in the United States on Upwork?

You can hire a Mobile Freelancer in the United States on Upwork in four simple steps:

  • Create a job post tailored to your Mobile Freelancer project scope. We'll walk you through the process step by step.
  • Browse top Mobile Freelancer talent on Upwork and invite them to your project.
  • Once the proposals start flowing in, create a shortlist of top Mobile Freelancer profiles and interview.
  • Hire the right Mobile Freelancer for your project from Upwork, the world's largest work marketplace.

At Upwork, we believe talent staffing should be easy.

How much does it cost to hire a Mobile Freelancer?

Rates charged by Mobile Freelancers on Upwork can vary with a number of factors including experience, location, and market conditions. See hourly rates for in-demand skills on Upwork.

Why hire a Mobile Freelancer in the United States on Upwork?

As the world's work marketplace, we connect highly-skilled freelance Mobile Freelancers and businesses and help them build trusted, long-term relationships so they can achieve more together. Let us help you build the dream Mobile Freelancer team you need to succeed.

Can I hire a Mobile Freelancer in the United States within 24 hours on Upwork?

Depending on availability and the quality of your job post, it's entirely possible to sign up for Upwork and receive Mobile Freelancer proposals within 24 hours of posting a job description.