Talent badge filter
Skills filter
Select talent location
Select talent time zones
$20/hr
100%
Job Success
Available now
Offers consultations
Start of list.
End of list.
🚀 Flutter Developer | iOS & Android | Firebase • Booking • Healthcare
⭐ Top Rated on Upwork | 100% Job Success | 25+ Apps Published
Your app idea is sitting in a Google Doc right now — and maybe you have already been burned. A developer who ghosted you mid-build. Code nobody can maintain. An app that worked on the emulator and broke on a real phone. That stops here.
I am Fazil, a Flutter & Dart developer who builds cross-platform mobile apps for iOS and Android from a single codebase. One codebase. Two platforms. Faster launch, lower cost — and an app that actually works on launch day.
🔧 What I build
Booking & appointment apps (salons, services, real estate)
Healthcare & fitness tracking apps
On-demand & delivery apps (food, ride-hailing, home services)
E-commerce & marketplace apps
Real-time chat, live streaming & community apps
💻 Tech I work with daily
Flutter • Dart • Firebase • Firestore • BLoC • REST APIs • Stripe & payment gateways • Google Maps • Push notifications • Real-time chat • Custom admin panels
✅ Why clients stay with me
Scope agreed before day one — no surprise invoices
Tested on real devices before handoff, not just emulators
Clean, documented code your next developer can actually read
Full App Store & Google Play deployment — I don't leave you at the finish line
📦 Recent work
CarVault Pro — a full Flutter + Firebase car-maintenance tracker with push notifications and MOT reminders, designed, built, and shipped in 10 days. I've also delivered booking, tenant-screening, live-streaming, and chat-integration apps for clients worldwide — 5-star reviews across the board.
💬 Send me your app idea and your current timeline. Within 24 hours I will tell you exactly what it takes to build it — scope, time, and cost. No vague estimates.
🟢 Available now and ready to start.
Fazil Q.
has worked
.
$50/hr
$6K+ earned
Available now
Start of list.
End of list.
Hi there! 👋 I’m a Full-Stack Mobile App Developer helping startups, founders, and businesses turn app ideas into clean, scalable, and launch-ready products.
𝐈 𝐬𝐩𝐞𝐜𝐢𝐚𝐥𝐢𝐳𝐞 𝐢𝐧 𝐦𝐨𝐛𝐢𝐥𝐞 𝐚𝐩𝐩𝐬, 𝐀𝐈-𝐩𝐨𝐰𝐞𝐫𝐞𝐝 𝐚𝐩𝐩𝐬, 𝐌𝐕𝐏𝐬, 𝐒𝐚𝐚𝐒 𝐩𝐥𝐚𝐭𝐟𝐨𝐫𝐦𝐬, 𝐰𝐞𝐛 𝐚𝐩𝐩𝐬, 𝐝𝐚𝐬𝐡𝐛𝐨𝐚𝐫𝐝𝐬, 𝐚𝐧𝐝 𝐛𝐚𝐜𝐤𝐞𝐧𝐝 𝐬𝐲𝐬𝐭𝐞𝐦𝐬 𝐮𝐬𝐢𝐧𝐠 𝐅𝐥𝐮𝐭𝐭𝐞𝐫, 𝐑𝐞𝐚𝐜𝐭 𝐍𝐚𝐭𝐢𝐯𝐞, 𝐍𝐨𝐝𝐞.𝐣𝐬, 𝐅𝐢𝐫𝐞𝐛𝐚𝐬𝐞, 𝐒𝐮𝐩𝐚𝐛𝐚𝐬𝐞, 𝐌𝐨𝐧𝐠𝐨𝐃𝐁, 𝐌𝐲𝐒𝐐𝐋, 𝐚𝐧𝐝 𝐭𝐡𝐢𝐫𝐝-𝐩𝐚𝐫𝐭𝐲 𝐀𝐏𝐈𝐬.
Whether you have a fresh app idea, an existing app that needs improvement, a messy codebase that needs cleanup, or a product that needs new features, I can help you plan and build it the right way.
⭐ 𝐖𝐡𝐚𝐭 𝐈 𝐁𝐮𝐢𝐥𝐝
✅ iOS and Android mobile apps
✅ Flutter and React Native applications
✅ MVPs for startups and founders
✅ SaaS platforms and subscription-based apps
✅ AI-powered apps, chatbots, and automation tools
✅ Web apps, dashboards, and admin panels
✅ Backend systems and API integrations
✅ Wrapper apps, WebView apps, and Base44-style app builds
✅ Payment gateways and third-party integrations
✅ App Store and Google Play deployment
⭐ 𝐓𝐞𝐜𝐡 𝐒𝐭𝐚𝐜𝐤
✅ Mobile: Flutter, React Native, iOS, Android
✅ Frontend: React.js, Next.js, JavaScript, TypeScript
✅ Backend: Node.js, Express.js, REST APIs
✅ Databases: Firebase, Supabase, MongoDB, MySQL
✅ AI & APIs: OpenAI API, Gemini, AI chatbots, automation tools, third-party APIs
✅ Tools: Figma, GitHub, Bitbucket, Postman
✅ Deployment: Apple App Store, Google Play Store, Firebase Hosting, cloud platforms
⭐ 𝐇𝐨𝐰 𝐈 𝐂𝐚𝐧 𝐇𝐞𝐥𝐩
✅ Turn your app idea into a launch-ready MVP
✅ Build clean and scalable mobile apps for iOS and Android
✅ Create dashboards, portals, admin panels, and backend systems
✅ Add AI features, chatbots, automation, payments, and API integrations
✅ Convert Figma designs into fully functional mobile apps
✅ Fix bugs, improve performance, and clean up existing code
✅ Deploy your app to the App Store and Google Play
✅ Support your product after launch with updates and new features
🎯 𝐌𝐲 𝐏𝐫𝐨𝐜𝐞𝐬𝐬
Planning → UI/UX Review → Frontend Development → Backend Development → Testing → Deployment → Ongoing Support
🤝 𝐋𝐞𝐭’𝐬 𝐁𝐮𝐢𝐥𝐝 𝐈𝐭 𝐑𝐢𝐠𝐡𝐭
Share your app idea, requirements, or existing product details, and I’ll help you choose the right approach, build a clean solution, and launch successfully.
Sheeraz A.
has worked
.
$24.98/hr
100%
Job Success
$10K+ earned
Available now
Start of list.
End of list.
I help startups and businesses build high performance mobile applications using Flutter, FlutterFlow, React Native, and AI-powered technologies that are scalable, fast, and production ready.
Most apps fail when they try to scale due to poor architecture, performance issues, or lack of planning. I specialize in building apps that are designed to grow from MVP stage to thousands of users without needing a complete rebuild.
With experience across Flutter, React Native, and AI-integrated mobile solutions, I have developed applications in SaaS, FinTech, HealthTech, and marketplace domains, focusing on clean architecture, smooth user experience, and long term scalability.
𝗪𝗵𝗮𝘁 𝗜 𝗰𝗮𝗻 𝗵𝗲𝗹𝗽 𝘆𝗼𝘂 𝗯𝘂𝗶𝗹𝗱:
Flutter & FlutterFlow MVP Development
React Native Cross-platform Apps
AI-powered Mobile Applications (OpenAI, ChatGPT, automation)
Scalable backend integration (Firebase, Supabase, Node.js)
Payment systems (Stripe, RevenueCat, In-App Purchases)
Real-time apps (chat, tracking, notifications)
App optimization, bug fixing & scaling existing apps
𝗧𝗲𝗰𝗵 𝗦𝘁𝗮𝗰𝗸:
• Flutter
• Dart
• FlutterFlow
• React Native
• Firebase
• Supabase
• Node.js
• REST APIs
• GraphQL
• Stripe
• RevenueCat
• OpenAI API
• ChatGPT API
• BLoC
• Riverpod
• CI/CD
• Push Notifications
𝗪𝗵𝘆 𝘄𝗼𝗿𝗸 𝘄𝗶𝘁𝗵 𝗺𝗲:
• Clean & scalable architecture
• Fast and clear communication
• Weekly progress updates
• 30 days post-launch support
• Full source code ownership
• Focus on performance and user experience
If you're looking for a reliable developer who can turn your idea into a scalable mobile product using Flutter, FlutterFlow, React Native, or AI integration, feel free to send me a message.
$120/hr
100%
Job Success
$300K+ earned
Offers consultations
Start of list.
End of list.
Why Work With Me:
• Helped client stores scale from $10K/month to over $1M/month
• Founded multiple Shopify brands generating $10K–$20K/month (up to $3K/day revenue)
• 150+ Shopify projects completed in 2.5 years
• #1 Shopify Theme & App Expert in Canada | Top 3 in the US (on Upwork)
• Lead a 20-person Shopify agency specializing in theme, app, and AI integrations
Why Clients LOVE My Work:
• Lightning-fast replies
• Proven revenue growth
• Expert at custom features
• Available for mid-to-large projects
• Experience across 60+ markets
What I Deliver:
• Custom Shopify themes using Shopify.dev best practices
• Advanced Shopify app development (private & public)
• Polaris-based UI design and full-stack dev (PERN + AI/LLM integrations)
• Seamless Shopify API integrations and custom functionality
• UX/UI Design to high-converting Liquid builds
• Optimized product pages with bundle builders, upsells, loyalty integrations
• Rapid, reliable communication with streamlined systems (Slack, Notion, Jira)
Tech Skills & Tools:
• Figma → Liquid/JS (Pixel-Perfect)
• Shopify Theme & App Dev
• HTML/CSS/JS/AJAX
• Shopify APIs & Integrations
• Custom features: Bundles, Rewards, Reviews, Analytics
• Tools: Polaris, Notion, Slack, Trello, ChatGPT, Asana
Who I am:
I'm a Civil Engineering grad turned Shopify engineer. I’ve gone from building roads to building high-converting eCommerce brands. My own store, Versatile Desk, ranked #1 on Google and sold in 60+ countries. After realizing my passion was in design and development, I pivoted full-time into building, scaling, and optimizing Shopify stores.
Today, I lead a full-service Shopify agency that works Monday–Saturday, 8AM–6PM EST, offering custom themes, app dev, UX design, and eCom consulting.
Let’s hop on a call to plan how we’ll make your Shopify store work smarter—and look better—than ever.
Mahtab A.
has worked
.
Associated with
Muscled Inc.
$300K+
earned
$25/hr
100%
Job Success
$80K+ earned
Available now
Start of list.
End of list.
Why Work With Me?
• 2500+ hours on Upwork—proven track record of reliability and expertise.
• Trusted by clients worldwide for delivering high-quality solutions.
• Recognised as a Top Rated Freelancer for years.
With over 10 years of experience in mobile app development, I excel at tackling challenges of all kinds. Whether it’s developing full-scale applications, building MVPs, or refactoring and optimizing code, I’m dedicated to bringing your ideas to life with precision and excellence.
I specialise in creating high-performance mobile applications using Swift, SwiftUI, UIKit, Kotlin, Jetpack Compose and AI-powered technologies to deliver outstanding user experiences. Leveraging Clean, MVVM and MVC architectures, I build scalable, maintainable apps tailored to your unique needs.
Core Technologies & Skills
Programming & Frameworks:
• Swift
• SwiftUI
• Combine
• Objective-C
• UIKit
• AVFoundation
• Kotlin
• Jetpack Compose
• Flutter
• Dart
Development Expertise:
• Auto Layout & Adaptive Layout
• Multithreading (Async/Await)
• Core Data & SQLite
• REST API Integration
• Alamofire (AFNetworking)
• SDWebImage & SwiftyJSON
Source Control & Collaboration Tools:
• GitHub
• Bitbucket
• SVN
Project Management Tools:
• Jira
• Trello
iOS App Development | Mobile App Developer | Android | Kotlin | Flutter | React Native | MVP Development | Hybrid App
Rajinder P.
has worked
.
$15/hr
100%
Job Success
$4K+ earned
Start of list.
End of list.
Are you ready to take your project to the next level? Look no further because I'm, a Full Stack Developer with a stellar 10+ year track record of delivering exceptional results in the world of web and mobile app development. I don't just build software; I craft digital experiences that leave a lasting impact.
My journey in the tech world began over a decade ago, and I've been on a relentless quest for excellence ever since. I've had the privilege to collaborate with a wide array of clients – from disruptive startups to global enterprises – and have consistently exceeded their expectations. When you work with me, you're not just hiring a developer; you're partnering with a tech visionary who's driven by a passion for innovation.
My expertise spans the entire software development spectrum, from concept to deployment and beyond. Here's a glimpse of the technologies and tools I command with mastery:
- Front-end: HTML, CSS, JavaScript, React, Angular, Vue.js
- Back-end: Node.js, Django, PHP, Express.js
- Databases: MySQL, PostgreSQL, MongoDB, Redis
- Mobile: React Native, Flutter
- DevOps: Docker, AWS, Azure, Heroku
- Testing: Mocha, Jasmine, Jest
- Project Management: Agile, Scrum
What sets me apart? I do more than write code; I design solutions. I'm passionate about crafting code that's clean, efficient, and can grow as your needs do. My expertise also includes speeding up existing applications to perform at their best. I don't just meet expectations; I exceed them.
📚 I'm always committed to staying up-to-date. I'm not just experienced; I'm a lifelong learner. In an ever-evolving tech landscape, I thrive by embracing the latest trends and best practices. I adapt. I innovate. I lead.
If you're looking for a Full Stack Developer who thrives on challenges and consistently delivers remarkable results, your search ends here. Let's collaborate to transform your vision into a digital masterpiece. Your success is my success.
Drop me a message, and let's talk. I'm not just here to build software; I'm here to build a legacy. Don't settle for mediocrity when you can have excellence. Elevate your project, and let's make a mark in the digital world together.
Aakash S.
has worked
.
Associated with
Owebest Technologies - Global CMMI Level 3 Appraised Company ⭐⭐⭐⭐⭐
$5K+
earned
$15/hr
81%
Job Success
$30K+ earned
Offers consultations
Start of list.
End of list.
⭐ 𝗢𝗣𝗘𝗡 𝗙𝗢𝗥 𝗜𝗡𝗩𝗜𝗧𝗔𝗧𝗜𝗢𝗡𝗦
🚀 Experienced Mobile App Developer Ready to Transform Your Ideas into Reality!
🌟 With a strong foundation in mobile app development, I bring over 7 years of expertise to the table. Specializing in both iOS and Android platforms, I thrive in creating dynamic, user-friendly, and innovative mobile applications.
📱 Key Skills:
Mobile App Development (iOS/Android)
iOS Development with Apple Xcode
Android App Development
Mobile Game Development
App Store Deployment
Payment Gateway Integration
Firebase Services (Authentication, Database, Cloud Messaging)
E-commerce Solutions
Advertisement Integration
MapKit for Location-based Services
SDK Implementation
Design Concept and UI/UX Development
💡 Why Choose Me?
1. Proven Track Record: Successfully delivered over 50 projects with a focus on quality and excellence.
2. Platform Proficiency: Mastery in both iOS and Android development, ensuring your app reaches a wide audience.
3. E-commerce Expertise: Enhance your business with secure and efficient e-commerce solutions tailored to your needs.
4. Seamless Integration: Skilled in incorporating payment gateways, Firebase services, and cutting-edge SDKs for enhanced functionality.
5. User-Centric Design: A keen eye for design concepts, ensuring your app is not only functional but visually appealing.
6. Prompt Deployment: Agile methodology ensures fast execution and accurate results.
7. Transparent Communication: Fluent and transparent communication throughout the development process.
8. Client Satisfaction: Your satisfaction is my top priority, and I take full responsibility for my work.
🌐 Project Range:
From creating engaging mobile games to developing robust e-commerce platforms and everything in between, I've got your mobile app needs covered. Whether you're envisioning an innovative advertisement platform or a user-friendly map-based application, I'm here to turn your ideas into reality.
🤝 Let's Collaborate:
Ready to elevate your mobile app experience? Let's discuss your project, goals, and how we can create something extraordinary together. Click on the 'Hire Me' button, and let the journey begin!
Feel free to chat with me and let's connect for free consultancy.
Thank you,
Jash
Jash G.
has worked
.
Associated with
Bolstersys
$2K+
earned
$15/hr
100%
Job Success
$80K+ earned
Available now
Offers consultations
Start of list.
End of list.
Build a high-performance mobile app that scales to 100K+ users? Or want to integrate AI features (OpenAI, Claude) into your current app?
I'm a Senior Full-Stack Developer with 7+ years of experience. I handle everything end-to-end: UI/UX design, clean BLoC architecture coding, backend setup, and 100% guaranteed App Store/Google Play approvals.
🔥 𝐏𝐫𝐨𝐯𝐞𝐧 𝐓𝐫𝐚𝐜𝐤 𝐑𝐞𝐜𝐨𝐫𝐝::
100% Job Success Score
50+ Projects Delivered with a crash rate under 1%.
Scale Expert: Built a food delivery app for Dubai handling 40K+ monthly orders.
AI Specialist: Smooth integration of ChatGPT, Claude AI, and smart automation.
🛠️ 𝐌𝐲 𝐓𝐞𝐜𝐡 𝐒𝐭𝐚𝐜𝐤:
Frontend: Flutter, Dart, FlutterFlow, React Native
Backend & DB: Firebase, Supabase, Node.js, PostgreSQL, REST APIs
AI Tools: OpenAI API, Claude AI, Live Chatbots, Workflow Automation
Payments: Stripe, PayPal, Razorpay, Apple/Google Pay
💡 𝐀𝐩𝐩𝐬 𝐈 𝐂𝐚𝐧 𝐁𝐮𝐢𝐥𝐝 𝐅𝐨𝐫 𝐘𝐨𝐮::
𝗔𝗜 & 𝗦𝗺𝗮𝗿𝘁 𝗧𝗲𝗰𝗵: AI Chatbots, CalAI-style wrappers, AI Photo/Video Editors, and Smart Workflow Automation.
𝗢𝗻-𝗗𝗲𝗺𝗮𝗻𝗱 & 𝗗𝗲𝗹𝗶𝘃𝗲𝗿𝘆: Food, Grocery, and Medicine Delivery setups with Real-Time Rider Tracking.
𝗙𝗶𝗻𝘁𝗲𝗰𝗵 & 𝗪𝗲𝗯𝟯: Crypto Wallets, Digital Payment Gateways, Neo-Banking, and Investment Dashboards.
𝗠𝗮𝗿𝗸𝗲𝘁𝗽𝗹𝗮𝗰𝗲𝘀 & 𝗘-𝗰𝗼𝗺𝗺𝗲𝗿𝗰𝗲: Multi-vendor Shopping Apps, Dropshipping Platforms, and Business Storefronts.
𝗛𝗲𝗮𝗹𝘁𝗵𝗰𝗮𝗿𝗲 & 𝗙𝗶𝘁𝗻𝗲𝘀𝘀: HIPAA-Compliant Telemedicine Apps, Doctor Booking, Diet/Nutrition Trackers, and Gym Software.
𝗕𝗼𝗼𝗸𝗶𝗻𝗴 & 𝗠𝗮𝗿𝗸𝗲𝘁𝗽𝗹𝗮𝗰𝗲𝘀: Salon Booking, Home Services (HVAC/Plumbing), Taxi/Uber Clones, and Event Ticket Booking.
𝗥𝗲𝗮𝗹 𝗘𝘀𝘁𝗮𝘁𝗲 & 𝗧𝗿𝗮𝘃𝗲𝗹: Property Listings with GPS/Geo-fencing, Hotel Booking, and Tour Guide Trackers.
𝗘𝗱𝗧𝗲𝗰𝗵 & 𝗠𝗲𝗱𝗶𝗮: Learning Management Systems (LMS), Live Video Streaming, and Real-Time Chat Apps.
Let's discuss your project today. Message me with your ideas, and let's launch your MVP fast!
Zahid S.
has worked
.
$20/hr
100%
Job Success
$200K+ earned
Available now
Offers consultations
Start of list.
End of list.
I am Vipin Maru — Top-Rated Full Stack Mobile App Developer
15+ years | 200+ products shipped | 25+ industries | Startups to Enterprise
Mobile & Web Development
React Native | Flutter | Swift | Kotlin | Node.js | Laravel | Django | REST & GraphQL APIs | Microservices | SaaS Architecture
High-performance iOS and Android apps with real-time features, payments, subscriptions, and AI integrations — built for production, not prototypes.
AI & Automation
OpenAI / GPT / LLM Integration | AI Chatbots & Agents | n8n Workflow Automation | Predictive Dashboards | NLP & Intelligent Search | Automated Reporting | AI-Powered Recommendations | Business Process Automation
Modern products are intelligent systems — I integrate AI where it creates measurable business value, not just novelty.
Cloud, Backend & DevOps
AWS (EC2, S3, Lambda) | Google Cloud | Azure | Docker | CI/CD Pipelines
PostgreSQL | MongoDB | MySQL | Firebase
Industries
FinTech | Healthcare & Telemedicine | Real Estate | E-commerce & Marketplaces | Logistics & Delivery | SaaS Platforms | Social & Community Apps | Dating Apps | EdTech & LMS | Event & Booking | CRM & Admin Dashboards
What Clients Hire Me For
✔ Startup MVP development — web and mobile
✔ AI-powered mobile applications
✔ SaaS product development & architecture
✔ Marketplace and on-demand platforms
✔ Subscription & payment systems (Stripe, in-app)
✔ Real-time chat, video & push notifications
✔ n8n automation & API orchestration
✔ Backend rescue & legacy system upgrades
✔ Enterprise dashboards & CRM systems
Why Product Teams Choose Me
I don't just write code. I think in product strategy, design for scalability from day one, and integrate AI where it creates real outcomes — not just features.
Clear communication. Predictable delivery. Long-term partnerships.
Let's Build
Building an AI-powered startup, SaaS platform, marketplace, telemedicine product, or real-time community app? Need to automate business workflows with AI and n8n?
Message me and let's scope it together.
Vipin M.
has worked
.
Associated with
Infowind Technologies (IT) Pvt. Ltd.
$500K+
earned
$55/hr
100%
Job Success
$500+ earned
Available now
Offers consultations
Start of list.
End of list.
Most products do not fail because of bad code - they fail because nobody thought about architecture before writing it. As a Top Rated Plus Full Stack Developer and Mobile App Developer with a 100% Job Success Score on Upwork, I bring that thinking to every project, from MVP to production scale.
I'm a Full Stack Developer, Mobile App Developer, and Backend Developer focused on production-ready software that holds up under real-world usage. My work sits at the intersection of Software Developer, Senior Web Developer, and SaaS Development specialist, with a backend-first mindset and deep attention to scalability and maintainability - from React Native and Flutter on mobile to Python, Node.js, and Laravel on the backend. As a Full Stack Developer and Backend Developer, I own every layer, from React components to AWS architecture.
Core Specializations
Full Stack Web & API Development
As a Web Developer and React Developer comfortable across the entire stack, I build end-to-end solutions using React, Vue, Next.js, and TypeScript on the frontend, paired with Python (FastAPI, Django, Flask), Node.js, and Laravel on the backend. As a Front End Developer handling Web Design and component architecture, while I have previously worked as a Wordpress developer, my current focus is on custom SaaS Development and API-driven systems. As a Full Stack Developer, I own delivery from database schema to deployed product.
Scalable Backend Architecture
As a Python Developer and Node.js specialist, I build robust APIs for high concurrency - including SaaS Developer products that require multi-tenant architecture and subscription logic. As a Backend Developer, I focus on stable systems - REST or GraphQL - that handle complex business logic without performance degradation. As a DevOps-minded Full Stack Developer, I manage deployment pipelines and infrastructure as code across AWS and Microsoft Azure environments.
Performance Optimization & Systems Recovery
As a Full Stack Developer specializing in Mobile App Developer work, I resolve critical bottlenecks across mobile and web - reducing React Native app startup times, fixing memory leaks in Flutter apps, and resolving crashes in Swift and Kotlin codebases. Whether working as an Android Developer or iOS Developer, this is where my depth as a Mobile App Developer makes a difference in retention.
AI-Integrated Mobile App Developer Work
As a Full Stack Developer focused on Mobile App Developer work, I deliver intelligent cross-platform mobile apps as a React Native Developer and Flutter Developer, with native experience in Swift and Kotlin. I integrate OpenAI API, LangChain, and RAG systems for AI and API Integration that feels native and responsive on both iOS and Android, covering the full lifecycle from design and testing to App Store and Play Store deployment.
Data & Cloud Infrastructure
As a Full Stack Developer and AWS Architect, I bring deep expertise in AWS (Lambda, S3, DynamoDB), Microsoft Azure, PostgreSQL, and Redis. As a DevOps-focused engineer, I protect sensitive user data across Web, Android, and iOS platforms.
When projects require AI-powered functionality, I bring hands-on experience integrating AI into backend and mobile systems alike. This allows me, as a SaaS Developer, to deliver AI Integration that is reliable, observable, and cost-controlled rather than experimental.
Clients typically work with me when they need:
- a Full Stack Developer who can own frontend and backend
- a Mobile App Developer with React Native, Flutter, and native iOS/Android experience
- a Senior Web Developer or Backend Developer experienced with real production systems
- AI Integration and API Integration for existing or new platforms
- a SaaS Developer who understands long-term scalability constraints
- AWS Architect or Azure-based cloud infrastructure
- MVPs that can realistically evolve into long-term SaaS Development products
Technical Expertise
- Mobile: React Native, Flutter, Swift, Kotlin, TypeScript, Redux Toolkit, React Query
- Frontend: React, Vue, Next.js, TypeScript, Tailwind CSS
- Backend: Python (FastAPI, Django, Flask), Node.js, Laravel, PHP, REST & GraphQL
- AI & Automation: OpenAI API, LangChain, Vector Databases, RAG, AI Machine Learning
- Data & Cloud: AWS (S3, Lambda, DynamoDB), Microsoft Azure, PostgreSQL, Redis
- Tools: Docker, CI/CD, Git, Stripe, DevOps pipelines
Professional Approach
Having worked across Wellness, Fintech, Healthcare, and SaaS Development as a Full Stack Developer and Mobile App Developer, I provide architecture that scales, transparent communication, and end-to-end delivery from database schema to cloud deployment on AWS and Azure.
I do not take on Wordpress developer projects, SaaS marketing, Google Ads, or Digital Marketing services.
If you need a Full Stack Developer or Mobile App Developer to own the roadmap from MVP to production scale - let us discuss your project on Upwork.
Denys K.
has worked
.
Associated with
🔺 Jett Develops | Full-Cycle Design and Development Company, $250M Raised by Clients
$500K+
earned