Hire the Best Flutter Developers in New York

I build, fix, and launch production Flutter apps for founders, startups, and small teams. A lot of my work is with apps that need more than basic UI: subscriptions, Firebase or Supabase backends, BLE hardware, maps, push notifications, App Store / Play Store setup, or cleanup on an existing codebase. I’m a Top Rated Plus Flutter developer with 20+ apps built or shipped, 100% Job Success, and experience taking apps from early idea through release and post-launch updates. I’m usually a good fit when a project needs someone who can step in, understand the product, sort through the moving pieces, and make steady progress without needing every detail spelled out. What I can help with: • Building MVPs from idea to launch • Fixing or improving existing Flutter apps • Taking over partially built apps • Cleaning up messy codebases • RevenueCat, Stripe, and in-app purchase setup • Firebase, Supabase, PostgreSQL, REST APIs, auth, storage, and realtime features • BLE / Bluetooth hardware integrations • Maps, GPS, location tracking, Mapbox, and Google Maps • Push notifications, analytics, AI integrations, and app store deployment • Task breakdowns, QA support, release planning, and technical direction Tech I use regularly: Flutter, Dart, Firebase, Supabase, PostgreSQL, REST APIs, RevenueCat, Stripe, Mapbox, Google Maps, BLE, OpenAI, BLoC, GoRouter, iOS, Android Here’s what clients have said: "Christian is an extremely engaged, proactive and capable engineer. I found his assistance to be very helpful for my project and I recommend working with Christian if you get the opportunity!" "Christian had no problem hitting the ground running with an existing team on an app that was partially built, and delivered immediate value. He not only provided work with a fast turnaround time, but was able to think outside the box and come up with creative solutions for problems." "Christian was a pleasure to work with. He was able to quickly assist our urgent requests and provided valuable input. I highly recommend Christian." I’m a strong fit for founders building an MVP, startups moving quickly, or teams that need a hands-on Flutter developer who can take ownership across development, technical decisions, launch, and production. If you’re building, fixing, or trying to finally ship your app, send me a message and I’ll help you figure out the cleanest path forward.

I'm a UI UX Designer with 8+ years of experience in UI/UX Design. My clients include Microsoft, Yahoo, Stanford University, Henkel, and DoorDash. I specialize in UX & UI, Web Design, SaaS Design, Mobile App Design, and Graphic Design, using Figma, Adobe Photoshop, and Adobe Illustrator as primary tools. 160+ UI/UX Design projects delivering User Interface Design, User Experience Design across ecommerce, fintech, healthcare, and SaaS. What Makes My Approach Different I start with UX Research and data, not pixels. Every UI UX Designer Figma project begins with User Flow analysis and competitive benchmarking. I am a product designer who translates goals into measurable outcomes. I am a mobile UI UX designer who validates every prototype through usability benchmarks. I am a UI UX web designer creating responsive design systems developers trust. As a UI UX Designer SaaS expert, I have delivered 20+ B2B SaaS platforms, Web Design, and enterprise products. My Deliverables UI UX Designer Figma - 4,500+ User flows, wireframe deliverables, Wireframing screens, high-fidelity prototypes, UI/UX Prototyping, and hundreds of design systems in Figma. Clean modern component libraries with color palette standards, typography systems, interaction patterns, and UI Graphics. UI UX Designer Figma output is production-ready. Mobile UI UX Designer - 35+ Mobile App Design projects for iOS and Android. Mobile UI Design, User Flow mapping, responsive navigation, prototype testing, Usability Testing, and GUI Design. Each mobile UI UX designer delivery includes interaction specs. Mobile App Redesign and App Design for smartphone and desktop application environments. UI UX Web Designer - 55+ Landing Page design projects, SaaS landing page design, Web Design for marketing sites and Web Application platforms. UI UX web designer deliverables include responsive design, Webflow layouts, conversion strategy. Attention to detail as a website designer. UI UX Designer SaaS - 30+ Dashboard design projects, admin panels, B2B SaaS interfaces. SaaS design that cuts cognitive load. UI UX Designer SaaS process covers Information Architecture, User Flows, Data Visualization, and Usability Testing. UI UX Designer React - 25+ token-mapped design systems for React handoff. UI UX Designer React output bridges UIUX design and engineering with component specs. HTML, CSS, JavaScript for design-development alignment. HTML5, CSS 3, PHP for WordPress integration. Node.js, Swift for iOS Development and Mobile App Development. Flutter and Android App Development specs provided. Brand Identity and Graphic Designer - 120+ Logo Design projects, visual identity, Branding, color palette, typography, brand guidelines. A graphic designer with 45+ identities across web, Mobile App Design, print. Illustrator for Illustration and vectors. Photoshop for visuals. Label and Packaging Design. Ecommerce and Niche - 12+ UX designer Shopify storefronts for conversion. Game UI UX designer interfaces. UI UX designer crypto dashboards. UI UX designer healthcare portals with accessibility compliance. WordPress and Webflow builds. How I Work Step one: UX Research. I audit your product, study users, analyze competitors. I define User Flows and map Information Architecture. Step two: wireframe exploration, Wireframing, and interactive prototypes in Figma. Full UI/UX Prototyping and UX/UI design. Step three: Web Design execution. Clean modern User Interface Design, design system, color palette, typography. Step four: responsive design handoff for React, Webflow, or WordPress. Usability Testing throughout. The methodology I used at Microsoft and DoorDash. Every mobile UI UX designer, UI UX web designer, and UI UX Designer Figma project follows this. Proven Outcomes A B2B SaaS healthtech company: I redesigned dashboard design and SaaS landing page design. User Experience improved with activation rates rising 58%. The design system contained 310+ components. UI UX Designer React handoff cut engineering time by 35%. Landing Page conversion jumped 41%. User Experience Design guided every decision. An ecommerce wellness brand needed a complete overhaul. UI UX designer healthcare work met accessibility standards. User Flows cut task completion by 42%. Brand identity, visual identity, brand guidelines unified Mobile App Design, Web Design, and print. Ecommerce conversion grew 52%. Every interaction validated through testing. Get Started Share your project, users, goals. I reply within 2 hours. As a UI UX Designer, I bring UI UX Designer Figma expertise, mobile UI UX designer skills, UI UX web designer precision, UI UX Designer SaaS architecture, and UI UX Designer React specialization. A product designer, graphic designer, web designer focused on User Experience strategies grounded in research. The standard I delivered for Microsoft, DoorDash, and Stanford. Message me.

Hi, I can elevate your business's web and mobile presence and build your website or mobile application from scratch or fix your existing one. ✅ Senior Laravel ,WordPress/Woocommerce and Shopify Developer. ✅ Senior Flutter Developer for mobile apps. ✅ Over 10 years of Laravel, WordPress/Woo, and PHP development experience. ✅ Upwork's TOP RATED PLUS web and mobile developer. ✅ With more than 10 years of commercial development, I can estimate all tasks and projects, so you'll know the price and turnaround. Here is what I can help you with for the back-end and front-end tasks: • Laravel development • Flutter development and submission to AppleStore and GooglePlay. • WordPress and WooCommerce and custom plugin development. All popular themes and ACF. • PHP/MySQL/MangoDB development • FrontEnd development; React.js, TypeScript, html5, CSS and more I can set or fix your server configuration : • Amazon AWS, Digital Ocean, Vultr, Liquid, WPEngine, Plesk • All popular U.S. and European shared hostings; Godaddy, Ionos, Bluehost, Kinsta, and much more. I can add payment functionality to your website or the mobile app: • Invoicing, Checkout for users and guests, Recurring payments, etc. • Custom discounts, promo codes, and referral programs. • Authorize.net, Stripe, Square, PayPal, Apple pay and Amazon pay. I will set up your email configuration for Google, Amazon, Office365/Outlook, as well as campaigns with Sendgrid, Twilio, Mailchimp, Constantcontact etc. Management: Jira, Asana, Trello, or Slack. If you are looking for a result-oriented professional who cares about delivering high-quality work, please feel free to contact me.

I build enterprise-grade applications in Golang and Python. Having developed systems at JP Morgan, Nestlé, and Home Depot, I focus on clean architecture, secure API design, and writing maintainable code for long-term growth. I am a hands-on developer who jumps into complex codebases to deliver stable, production-ready features for high-traffic environments.

𝐇𝐢! 𝐈’𝐦 𝐌𝐮𝐡𝐚𝐦𝐦𝐚𝐝 𝐇𝐚𝐬𝐧𝐚𝐢𝐧, a seasoned Mobile App Developer with over 8 years of hands-on experience in React Native. I specialize in developing high-performance Kiosk, tablet, iPad, and mobile applications with seamless functionality for both iOS and Android platforms across a wide range of industries, including Healthcare, Event & Management, E-commerce, FinTech, Education, Fitness, Real Estate, Retail, Travel, Media & Entertainment, and Logistics. 💡 𝐂𝐨𝐫𝐞 𝐂𝐨𝐦𝐩𝐞𝐭𝐞𝐧𝐜𝐢𝐞𝐬 𝐚𝐧𝐝 𝐓𝐞𝐜𝐡𝐧𝐢𝐜𝐚𝐥 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞 💡 𝐑𝐞𝐚𝐜𝐭 𝐍𝐚𝐭𝐢𝐯𝐞 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭: Expertise in developing cross-platform apps with native-like performance, leveraging tools like Expo, React Navigation, and Native Modules. 𝐌𝐨𝐛𝐢𝐥𝐞 𝐀𝐩𝐩 𝐀𝐫𝐜𝐡𝐢𝐭𝐞𝐜𝐭𝐮𝐫𝐞: Skilled in designing scalable architectures using React Native CLI, TypeScript, and Modular Design Patterns. 𝐔𝐈/𝐔𝐗 𝐃𝐞𝐬𝐢𝐠𝐧: Crafting pixel-perfect, intuitive designs with tools like Figma and Adobe XD, optimizing for accessibility and responsive layouts. 𝐑𝐞𝐝𝐮𝐱 & 𝐌𝐨𝐛𝐗 𝐟𝐨𝐫 𝐒𝐭𝐚𝐭𝐞 𝐌𝐚𝐧𝐚𝐠𝐞𝐦𝐞𝐧𝐭: Managing complex app states with Redux Toolkit, Thunk, and MobX for real-time, synchronized data flow. 𝐀𝐏𝐈 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧: Proficient in integrating both RESTful APIs and GraphQL, ensuring secure and efficient data exchange. 𝐅𝐢𝐫𝐞𝐛𝐚𝐬𝐞 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧: Expertise in Firebase services like Firestore, Authentication, Cloud Functions, Messaging, and Crashlytics for real-time updates and enhanced functionality. 𝐏𝐚𝐲𝐦𝐞𝐧𝐭 𝐆𝐚𝐭𝐞𝐰𝐚𝐲𝐬: Seamless integration of Stripe, PayPal, and Apple Pay for in-app payments and subscription management. 𝐓𝐞𝐬𝐭𝐢𝐧𝐠 & 𝐃𝐞𝐛𝐮𝐠𝐠𝐢𝐧𝐠: Skilled in Jest, React Native Testing Library, and Appium for automated testing, and real-time debugging using Flipper. 𝐂𝐈/𝐂𝐃 𝐏𝐢𝐩𝐞𝐥𝐢𝐧𝐞𝐬: Implementation of CI/CD workflows with Bitrise, CircleCI, and Fastlane for automated testing, building, and deployment. 𝐕𝐞𝐫𝐬𝐢𝐨𝐧 𝐂𝐨𝐧𝐭𝐫𝐨𝐥: Proficient in Git, GitHub, and Bitbucket for collaborative development and version control. 𝐓𝐨𝐨𝐥𝐬 𝐈 𝐔𝐬𝐞: ➥ Project Management: JIRA, Trello, Asana ➥ Communication: Slack, Google Chats, Skype, Google Meet, Zoom ➥ Version Control: GitHub, Git, BitBucket ➥ Methodology: Agile, Scrum, Kanban 𝐖𝐡𝐲 𝐂𝐡𝐨𝐨𝐬𝐞 𝐌𝐞: 💥 Proven Track Record: Consistently delivering high-quality results with a focus on client satisfaction. 💥 Effective Communication: Clear, responsive, and always keeping you in the loop. 💥 Problem-Solving Expertise: I tackle challenges head-on, ensuring that your cross-platform apps are both beautiful and functional. Whether you're a startup or an established company, I have the experience and expertise to bring your app to life. From frontend development to backend development, I’m here to help you build robust, scalable solutions using cutting-edge frameworks like Dart (Flutter), React Native, RESTful API, Node.js, and Python. 📞 Ready to discuss your project? Click 'Invite to Job' for a free consultation, and let’s explore how I can contribute to your success.