Hire the Best NativeScript Specialists
in the United States

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Marharyta V.

Los Angeles, California

$70/hr
5.0
26 jobs

A Senior React Native/Expo Developer & Software Architect with 9+ years of experience building high-quality mobile and full-stack applications — from MVPs to production systems used by thousands of users. I don’t just build apps — I design systems that are scalable, maintainable, and ready for growth. 🚀 What I specialise in: • ⚙️ Mobile architecture (React Native / Expo) — clean, scalable, production-ready • 🧠 Full-stack development — Node.js, PostgreSQL, Supabase, Firebase • 🌐 Web & admin panels — React, Next.js, dashboards, internal tools • 🤖 AI integrations — OpenAI, Claude, AI-powered features (recommendations, generation, automation) • 🔌 API integrations — payments (Stripe, RevenueCat), maps, analytics, third-party platforms • 📡 Real-time systems — chat, live updates, subscriptions, WebSockets • 🧪 Performance, debugging & stabilization — fixing complex apps, not just building from scratch • 👥 Tech leadership — leading teams, structuring projects, mentoring developers 📱 Experience: • 40+ mobile apps shipped (iOS & Android) • Built and scaled apps in: healthtech, fintech, social, marketplaces, AI products • Strong experience with existing codebase refactoring & stabilization • Led teams and delivered full-cycle development (architecture → release → scaling) 🛠 Tech Stack: Mobile: React Native (Expo & bare), TypeScript, Reanimated, React Navigation Backend & DB: Node.js, PostgreSQL, Supabase, Firebase (Auth, Firestore, Functions), REST, GraphQL Web: React, Next.js, admin dashboards, Vercel deployments AI & Integrations: OpenAI, Claude, AI workflows, OCR, recommendation systems Other: Stripe, RevenueCat, Mapbox, WebSockets, CI/CD (GitHub Actions, Bitrise), App Store & Google Play releases 💬 How I work I focus on: • clean architecture (so you don’t need to rebuild in 3 months) • fast iteration (MVPs in weeks, not months) • real product thinking (not just coding tickets) I’m comfortable: • owning the full product • jumping into messy codebases and fixing them • making technical decisions independently 🤝 Let’s work together If you need someone who can build, fix, scale, and actually think like a product engineer, I’d love to help. Let’s build something solid 🚀

  • React Native
  • Firebase
  • TypeScript
  • JavaScript
  • User Authentication
  • Social Media Account Integration
  • In-App Purchases
  • Map Integration
  • iOS Development
  • Android App Development
  • Mobile App Development
  • Redux Saga
  • Websockets
  • Hybrid App Development
  • Cross Functional Team Leadership
Nieves R.

Charlottesville, Virginia

$7/hr
5.0
1 jobs

Administrative Support Specialist | Tax Preparation Assistant | Data Entry Professional I am an Administrative Support Specialist with over 6 years of experience in office administration, customer service, document management, and business operations. I hold a Bachelor's Degree in Economics and have continued expanding my professional skills through training in tax preparation, digital marketing, e-commerce, sales, and business development. I specialize in administrative support, data entry, form completion, document review, email management, customer service, and tax preparation assistance. My experience working with sensitive financial and personal information has strengthened my attention to detail, accuracy, confidentiality, and ability to follow procedures carefully. I am highly organized, dependable, and committed to delivering quality work on time. Whether you need assistance with administrative tasks, data management, documentation, online research, customer support, or business organization, I am ready to help your business operate more efficiently. My strengths include: • Administrative Support • Data Entry & Document Processing • Tax Preparation Assistance • Form Completion & Verification • Customer Service • Email Management • Internet Research • Digital Marketing Fundamentals • E-commerce Support • Attention to Detail & Accuracy • Confidential Information Handling • English & Spanish Communication I am dedicated to providing professional, reliable, and detail-oriented support that helps businesses save time and stay organized.

  • NativeScript
  • Draft Correspondence
  • Program Management
  • Office Administration
  • Analytics
  • Keap Administration
  • System Administration
  • Administrative Support
  • Program Evaluation
  • Business Correspondence
  • Data Entry
Justin R.

Ojai, California

$60/hr
4.8
48 jobs

I am an expert mobile app developer in the top 1% of contractors on Upwork. Using React Native, I create well-designed, beautiful cross-platform mobile apps. I love React Native and have been using it to develop a variety of apps for clients ever since it came out. I am a computer science graduate from Azusa Pacific University, and won the hackathon there for one of the apps I made with React Native in under 72 hours. I am easygoing and enjoy working on interesting projects on the cutting edge of technology. I like working with other people, trying to bring their vision for apps to come to life. My most common workflow is Trello, Slack, Github, VSCode, Powershell, Expo, React Native, Firebase. I post daily updates on my progress, as well as over-the-air updates so that you can physically see on your device the progress being made. I always write out clear proposals before committing to working on a project. My code is almost always re-usable, which allows me to make new apps much quicker. At this point I basically have my own library of components to build with. React Native itself allows modular code reuse which helps with this. I've built apps from scratch for clients lots of times, and each time I get better at it. I can give accurate estimates and recommendations because of this. There's also some neat coding tricks I've picked up along the way. I am very flexible with time schedules, app requirements, and so on. The way I'm able to do this is by preferring firm-fixed price, and by starting with the smallest possible version. I enjoy making apps, so if you have an app idea and want it made, let me know and I'll do my best to help get it made. Whether that means me giving recommendations on how you can build it yourself, or me guiding a more junior developer I put you in contact with, or I end up giving a free consultation, I'd love to hear about your app and see if I can help.

  • TypeScript
  • Mobile App Development
  • React
  • Smartphone
  • Redux
  • SQLite Programming
  • Expo.io
  • React Native
  • JavaScript
  • Firebase
Jasper G.

Skokie, Illinois

$55/hr
4.0
2 jobs

Lets complete your React Native App! 4+ Years of Experience with React Native Developed and published iOS and live on the App Store. Proficient in working with various databases and async storage solutions. Strong understanding of React concepts, including authorization and session management. Experienced with AI assisted coding to increase the development process. Implemented in-app payments and subscription models for monetization. Integrated mapping functionalities using Google Maps and Mapbox. Experience with push notifications and app performance optimization. Quick learner, adaptable, team player and a keen eye for keeping a codebase organized and maintainable. 3000+ Github contributions in the past year. React Native - Detox - Jest - Async Storage - Zustand - Context - Typescript - Bottom Sheets - Gesture Handling - Toast Notifications - Haptic Feedback - Apple Sign In - In App Purchases - Importing custom fonts and svg icons Frontend Development - Node - NextJS - Tailwind Backend / Database - Supabase - Firebase - API & SDK integration Maps & Geolocation - Geolocation - Mapbox - Google Maps Platform-Specific - IOS - Android - plist - App Store Connect Version Control - git Programming Languages - Python - Solidity Other - SVG

  • Front-End Development
  • React
  • MongoDB
  • Tailwind CSS
  • TypeScript
  • Git
  • Database
  • Solidity
  • Firebase
  • Supabase
  • React Native
  • iOS Development
  • Android App Development
  • JavaScript
  • Jest
Jack C.

Palm Beach, Florida

$80/hr
4.6
3 jobs

I turn sketches into App Store–ready products that delight users and scale without drama. - 3 years leading Android & iOS development for a venture‑backed SaaS startup (7‑person team). Took both apps from zero to public beta (2,000+ users, 98% crash‑free sessions) through to launch. - Business‑savvy builder: mix product sense, UX empathy, and code craft. I translate goals into pixel‑perfect, high‑performant front ends. - Workflow: lean, test‑driven, CI/CD (Fastlane, GitHub Actions), async‑friendly comms, ship‑small‑learn‑fast mindset. Languages:  TypeScript / JavaScript · Python · Ruby · SQL Frameworks:  React · React Native · Expo Cloud & DevOps:  Firebase · AWS (EC2, RDS, Lambda, S3) Integrations:  Stripe · Firebase · OAuth What you can expect ✅ Clean, maintainable code (ESLint + Prettier, layered architecture) ✅ Performance budgets hit: 60 fps mobile ✅ Friendly, proactive communication and thorough documentation Availability: 15–20 hrs/week | Time zone: EST (flexible overlap worldwide) Let’s talk about how I can accelerate your roadmap and ship that next feature faster, leaner, cleaner.

  • React Native
  • Redux
  • React
  • JavaScript
  • TypeScript
  • HTML
  • CSS
  • Python
  • Ruby on Rails
  • Firebase
  • Stripe
  • Adobe Illustrator
  • Adobe XD
  • Zeplin

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