I build fast, reliable mobile apps that keep working even with no internet connection.
I'm a Senior React Native Engineer with 6+ years of experience delivering scalable, high-performance apps across iOS and Android. I've led mobile projects end-to-end, from system design all the way to App Store deployment for e-commerce, IoT, and education platforms.
What I bring to your project:
• Offline-first architecture that works reliably in real-world conditions
• Clean, maintainable TypeScript codebases built to scale
• Complex state management done right
• Performance optimization that keeps apps smooth and fast
I care about more than just writing code, I think about the product, the user experience, and long-term maintainability, so what I build keeps working long after launch.
Let's talk about how I can help bring your app to life.
React Native
Mobile App Development
Android App Development
Android Studio
iOS Development
Mobile App
Database
Redux
Arif D.
Berlin, Germany
$100/hr
5.0
32 jobs
Need a backend that doesn't break when you scale?
I'm a Principal Engineer and Ex-CTO who's built systems handling 25K requests/second for fintech platforms with 1M+ users.
Raised $1M for my own startup. I know what it takes to ship fast without cutting corners.
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𝗪𝗵𝗮𝘁 𝗜 𝗯𝘂𝗶𝗹𝗱:
→ APIs & backends in Go, Python, and TypeScript
→ SaaS platforms from MVP to production scale
→ AI integrations & LLM-powered features (RAG, agents, OpenAI/Anthropic)
→ Cloud infrastructure on AWS & Kubernetes
→ Integrations (Stripe, Shopify, third-party APIs)
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𝗥𝗲𝗰𝗲𝗻𝘁 𝗿𝗲𝘀𝘂𝗹𝘁𝘀:
→ $4K Shopify product sync delivered in 2 days
→ Call tracking SaaS full backend in 5 days
→ 30% infra cost reduction | 55% faster API latency
→ 1200+ GitHub stars on open-source tools
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I write code that's simple, tested, and maintainable. Not clever puzzles for the next developer.
✉ Send your requirements. I respond in minutes.
Python
Docker
Amazon Web Services
Kubernetes
Node.js
Golang
TypeScript
FastAPI
PostgreSQL
Microservice
REST API
OpenAI API
LangChain
Large Language Model
AI Agent Development
Vector Database
Babar A.
Duisburg, Germany
$40/hr
4.0
28 jobs
𝐁𝐮𝐢𝐥𝐝 𝐅𝐢𝐫𝐬𝐭 • 𝐒𝐜𝐚𝐥𝐞 𝐒𝐦𝐚𝐫𝐭❗
Before you invest heavily, I help you define the right architecture and roadmap for your Mobile App, AI system, Voice Agent, SaaS product, or Web Application, so you move forward with clarity and confidence.
Have an idea for a Mobile App, AI Platform, Voice Agent, SaaS product, or Web App, but need someone who can take it from zero to launch without chaos?
I help founders and businesses turn concepts into real, revenue-generating software using Flutter, React Native, Python, AI Agents, ChatBots, and scalable SaaS architecture.
With nearly a decade of experience, I don’t just code features, I architect full products.
𝐌𝐨𝐛𝐢𝐥𝐞 𝐀𝐩𝐩 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭
• Flutter (iOS & Android)
• FlutterFlow (Rapid MVP & Startup Launch)
• React Native cross-platform apps
• High-performance UI
• API integrations
• App Store & Play Store deployment
𝐖𝐞𝐛 𝐀𝐩𝐩 & 𝐒𝐚𝐚𝐒 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭
• Python (Django / FastAPI)
• Full-Stack React / Next.js applications
• Multi-tenant SaaS systems
• Admin dashboards
• Subscription & payment systems
• Multi-tenant SaaS architecture
𝗔𝗜, 𝗖𝗵𝗮𝘁𝗕𝗼𝘁 & 𝗔𝗜 𝗔𝗴𝗲𝗻𝘁 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁
• AI ChatBots (customer support, SaaS assistants)
• Voice Agents & Voice-enabled Apps
• AI Agents with task automation
• GPT-powered workflows
• Smart search & recommendation systems
• AI-powered SaaS features
• Python automation & AI backends
• AI Voice Agents for inbound/outbound calls
• AI Customer Support Voice Bots
• AI Sales & Appointment Booking Agents
• Real-time Speech-to-Text & Text-to-Speech systems
• GPT-powered conversational workflows
• Voice-enabled SaaS platforms
• AI IVR automation systems
𝐓𝐡𝐞 𝐑𝐞𝐬𝐮𝐥𝐭𝐬 𝐈 𝐃𝐞𝐥𝐢𝐯𝐞𝐫:
✔ MVPs launched in weeks
✔ Scalable backend systems supporting growth
✔ AI systems that automate manual business tasks
✔ Clean architecture that saves long-term cost
✔ Production-ready Mobile & Web Apps
I think like a product architect, not a freelancer finishing tasks.
𝐂𝐨𝐫𝐞 𝐓𝐞𝐜𝐡𝐧𝐨𝐥𝐨𝐠𝐢𝐞𝐬:
• Flutter • Mobile App Development • Hybrid App Development • Mobile App Redesign • AI Mobile App Development • Android App • Android App Development • iOS Development • iPhone & iPad Apps • Mobile App • Mobile App Development Consultation • Mobile App Design • Website to Mobile App Conversion • Mobile App Bug Fix • App Development • Dart • Kotlin • SwiftUi • OpenAI API • Node.js • Python (FastAPI, Flask, Django) • REST • GraphQL • Firebase • Firestore • SQLite • MySQL • MongoDB • Firebase Cloud Functions • AWS • Google Cloud • Git • GitHub • GitLab • Bitbucket • Jira • Trello • Figma • Adobe XD • Material Design • Cupertino Widgets •
𝗪𝗵𝗼 𝗜 𝗪𝗼𝗿𝗸 𝗕𝗲𝘀𝘁 𝗪𝗶𝘁𝗵:
• Startup founders
• SaaS businesses
• AI product builders
• Agencies needing technical execution
• Entrepreneurs launching MVP
Click "Invite" to start a conversation!
𝗔𝘃𝗮𝗶𝗹𝗮𝗯𝗶𝗹𝗶𝘁𝘆: 40+ Hours/week
𝗥𝗲𝘀𝗽𝗼𝗻𝘀𝗲 𝗧𝗶𝗺𝗲: Typically replies within 1 hour
𝗖𝗼𝗺𝗺𝘂𝗻𝗶𝗰𝗮𝘁𝗶𝗼𝗻: Daily updates via your preferred method
If you're serious about building something scalable and intelligent, let’s talk!
Keywords:
Flutter developer
Flutter app developer
Android app developer
iOS app developer
Cross-platform mobile developer
Mobile app development
AI mobile app developer
Artificial intelligence app development
Machine learning app integration
Firebase app developer
API integration Flutter
Hybrid app developer
AI solutions for mobile apps
AI app developer
Mobile App Developer
Senior Mobile App Developer
Mobile App Development
Dating App
Flutter Mobile App Development
Education App Developer
Mobile App Developer
Saloon Booking Mobile App Development
Dating mobile app development
Food Delivery Mobile App Development
AI App Development
AI Mobile App Developer
Chat Mobile App Developer
Chat Buddy Mobile App Development
React Native
Mobile App Development
Python
Mobile App
SaaS Development
Web Application
AI Mobile App Development
Flutter
FlutterFlow
n8n
AI Platform
Chatbot
API Integration
Automation
AI Chatbot
Samuel O.
Hamburg, Germany
$85/hr
5.0
1 jobs
Hello! I'm a highly skilled and experienced React and React Native developer, with a strong background in front-end web and mobile development and a passion for building intuitive and visually appealing applications.
I have a deep understanding of the Reactjs UI library and I am comfortable working with a wide range of ecosystem tools technologies and frameworks like Nextjs. I have a track record of delivering high-quality code on time and within budget and I pride myself on communicating effectively with technical and non-technical stakeholders.
Whether you need a simple landing page or a complex, data-driven web/mobile application, I'm confident that I can help you achieve your goals. Let's work together to bring your project to life!
React Native
React
JavaScript
HTML5
Responsive Design
SCSS
Web Development
CSS
User Interface Design
Node.js
Front-End Development
TypeScript
Storybook
Jest
Next.js
Hewad M.
Mainz, Germany
$45/hr
5.0
10 jobs
Fullstack Developer with 5+ years of experience with Typescript, React.js, React Native and Node.js
React Native
React
TypeScript
JavaScript
Node.js
Hafiz S.
Trier, Germany
$20/hr
4.9
16 jobs
I am a Senior Full Stack Engineer specializing in the design and delivery of highly scalable, production-grade applications. With over four years of intensive experience across the full software development lifecycle, my expertise spans deep backend architecture, robust CI/CD pipelines, and polished cross-platform mobile/web development.
My primary focus is on Node.js (Microservices), Python (Django/Flask), and Ruby on Rails for the backend, coupled with React.js and React Native for impactful frontends. I excel at tackling complex systems, owning problems end-to-end, and ensuring applications remain stable and performant under heavy load. I have a proven track record of stabilizing services, resolving complex bug backlogs, and leading system optimization.
I bring specialized knowledge in two high-demand areas:
AI Agents & LLMs: Experienced in pioneering the integration of intelligent features and Large Language Models (LLMs) to enhance platform functionality and user interaction.
DevOps & Cloud: Proficient in owning the "plumbing" of modern SaaS platforms, including Kubernetes (AKS), Terraform, AWS, and GitHub Actions. I ensure disciplined CI/CD, structured logging, tracing, and clear SLOs to build truly resilient systems.
I am ready to architect your next application or optimize your existing infrastructure for peak performance and stability. Let's build something unbreakable.
React Native
React
Web Design
HTML
Adobe XD
CSS 3
WordPress
Web Development
HTML5
CSS
Figma
Deep Learning
Flask
Machine Learning
Node.js
Django
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