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With 5 years in Full-Stack Development, I craft powerful, user-centric web applications that elevate browser experiences. 🔥 Why Me? - Mastery over Next.js and Tailwind - Tailored Solutions for standout web applications. - Quality-First Approach ensuring seamless performance. - Transparent & Timely communication. - Your vision + My expertise = Apps that users love. Let's chat!

🍏 With a proven track record of success, I’m ready to help you achieve your goals. Let’s connect and discuss how I can bring my expertise to your project. Reach out today! ❇️ 20+ Years of Experience ✓ Solution-oriented DevOps Expert, focused on making your infrastructure optimized, stable and reliable, working with maximum efficiency for your business ✓ Strong experience architecting, running and managing complex systems and infrastructures ✓ Main focuses - Security, automation, optimization, monitoring and alerting in Cloud or large-scale server environments ✓ Highly skilled - with cloud platforms like MS365, Google Workspace, Azure, AWS and GCP infrastructures

Need a Flutter mobile app developer to turn your app idea into a real product? I help founders, startups, and businesses build production-ready iOS and Android apps with Flutter, backend/API integrations, OpenAI-powered features, subscriptions, and App Store / Google Play deployment. I’m a Top Rated Flutter developer with 100% Job Success, focused on building clean, scalable, and launch-ready mobile products. I’m not just here to “write code.” I can help you think through the product, define the MVP, choose the right technical approach, and build a first version that is simple, reliable, and ready for real users. 𝐖𝐡𝐚𝐭 𝐈 𝐜𝐚𝐧 𝐡𝐞𝐥𝐩 𝐲𝐨𝐮 𝐛𝐮𝐢𝐥𝐝 • Flutter iOS & Android apps • AI-powered mobile apps • MVPs for startups and non-technical founders • Education, productivity, wellness, coaching, and fitness apps • Subscription apps with RevenueCat • OpenAI / ChatGPT API integrations • Firebase, Laravel, REST API, and custom backend integrations • User authentication, onboarding, push notifications, and payments • App Store / TestFlight / Google Play deployment • Existing Flutter app fixes, redesigns, and rebuilds 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 𝐏𝐫𝐨𝐜𝐞𝐬𝐬 • Understand your idea, users, and core features • Define a clear MVP scope, timeline, and milestones • Build the Flutter app with clean architecture • Integrate backend APIs, authentication, payments, AI, or subscriptions • Test the main user flows and fix issues before release • Prepare builds for TestFlight, App Store, and Google Play • Support improvements after launch 𝐓𝐞𝐜𝐡 𝐒𝐭𝐚𝐜𝐤 • Mobile: Flutter, Dart • Backend & APIs: Laravel, PHP, REST APIs, MySQL • AI: OpenAI API, ChatGPT integration, AI app features • Cloud & Services: Firebase, Cloud Firestore, FCM, Supabase • Payments & Subscriptions: RevenueCat, in-app purchases, Stripe integrations • App Features: Authentication, push notifications, analytics, file uploads, maps, admin/API integration • Tools: Cursor, Claude, ChatGPT, Git, App Store Connect, Google Play Console 𝐑𝐞𝐜𝐞𝐧𝐭 𝐰𝐨𝐫𝐤 • Inivo: AI Study Planner — Flutter app with AI planning, subscriptions, authentication, and store release • Neurvora — mental performance app with Flutter, backend integration, subscriptions, and production launch • Trainer/athlete coaching MVP with mobile app, backend APIs, scheduling, and progress tracking • Existing Flutter app fixes, API integrations, and App Store / Google Play updates I also use AI tools like Cursor, ChatGPT, and Claude to move faster, but I don’t blindly ship AI-generated code. I review the code, test the flows, and keep the project maintainable. 𝐖𝐡𝐚𝐭 𝐲𝐨𝐮 𝐠𝐞𝐭 𝐰𝐨𝐫𝐤𝐢𝐧𝐠 𝐰𝐢𝐭𝐡 𝐦𝐞 • Clean and maintainable Flutter code • Clear communication and regular progress updates • Practical MVP thinking without overcomplicating the build • Help with both development and launch decisions • App Store / Google Play release support • Long-term support for fixes, updates, and new features If you want the cheapest possible app, I’m probably not the right fit. But if you want someone who can help you build, fix, and launch a serious mobile product, send me your idea and I’ll give you honest feedback on the best way to build it. Top Skills: Flutter | Dart | Mobile App Development | iOS Development | Android App Development | Cross-Platform App Development | AI Mobile App Development | OpenAI API | Firebase | Laravel | REST API | MySQL | RevenueCat | API Integration | App Store Deployment

🏆 10+ Successful Projects | 100% 5-Star Reviews | $50K+ Earned | 35+ Apps Shipped 🏆 🤝 WHAT YOU GET ✅ Senior engineer with 8+ years of mobile & full-stack experience ✅ Every single completed project rated 5 stars by clients ✅ Custom UI/UX design by a professional designer (my wife) ✅ Free basic design support on every project ✅ 2 months of free post-launch support ✅ Unlimited revisions until you're satisfied ✅ Free consultation call before we start Industries I've delivered for: Healthcare, Fitness, E-commerce, Education, FinTech, Real Estate, Food Delivery, Travel, Social Media, SaaS, Lifestyle, News, and more. You need a developer who can build both your web platform AND your mobile app — without juggling separate teams, miscommunication, or doubled costs. I've delivered 35+ production-ready projects across iOS, Android, and web, and I handle the full stack so nothing falls through the cracks. I'm Mert, a senior full-stack engineer with 8+ years of experience. I work alongside my wife, a professional UI/UX designer, so you get world-class design AND rock-solid code from one team — faster turnaround, zero finger-pointing. 🚀 WHAT MAKES US DIFFERENT → Web + Mobile, One Team: Need a Next.js web app AND a React Native mobile app sharing the same backend? I architect and build the entire ecosystem. → Design + Development Under One Roof: My wife handles UI/UX design while I build the product — seamless collaboration from day one. → End-to-End Ownership: From wireframes to deployment and post-launch support, I own every step across all platforms. → Agile Sprints with Full Transparency: Weekly demos, daily updates when needed, and a shared project board so you always know where things stand. 💼 PROJECTS I EXCEL AT Full-stack web applications (Next.js, React, Node.js) Cross-platform mobile apps (React Native/Expo) Native iOS apps (Swift/SwiftUI) AI-powered web & mobile applications SaaS platforms with subscription billing MVP development for startups racing toward funding Admin dashboards & internal tools E-commerce, healthcare, fitness, fintech, education & lifestyle platforms API design, integration & migration projects ⚙️ TECHNICAL EXPERTISE 📱 Mobile Development: React Native, Expo, Swift, SwiftUI, Objective-C, Kotlin, Jetpack Compose, Xcode, Android Studio, App Clips, Widgets, WatchOS 🌐 Frontend & Web: Next.js, React, TypeScript, JavaScript, Tailwind CSS, HTML/CSS, Vue.js, Angular, Progressive Web Apps (PWA), Responsive Design, Server-Side Rendering (SSR), Static Site Generation (SSG) 🛠️ Backend & API: Node.js, Express.js, Python, PHP, Laravel, REST APIs, GraphQL, WebSockets, serverless functions, microservices architecture 🗄️ Database & Storage: Firebase (Auth, Firestore, Functions, Storage, Analytics), Supabase (Auth, Realtime, Edge Functions, Storage), PostgreSQL, MongoDB, MySQL, Redis, Prisma ORM 🤖 AI & Machine Learning: I've shipped production AI apps used by thousands — AI meal scanners, wardrobe stylists, child speech recognition systems, and more. I build AI that earns real revenue. → OpenAI, Claude & Gemini multi-model architectures → RAG pipelines & vector search (Pinecone, pgvector) → Voice AI: Speech-to-Text → LLM → Text-to-Speech → AI image analysis, OCR & document parsing → Personalized recommendation engines → Subscription-gated AI features & usage-based billing → Real-time AI streaming responses (SSE) → AI chatbots with memory & context management → Automated content generation pipelines → AI-powered search & semantic similarity → Fine-tuned model integration & prompt engineering → Multi-language AI (11+ languages shipped) → On-device ML (CoreML, MLKit, TensorFlow Lite) 💰 Monetization & Payments: RevenueCat (subscriptions & paywalls), StoreKit 2, In-App Purchases, Stripe (payments, subscriptions, Connect), Apple Pay, Google Pay, payment gateway integration 🔔 Engagement & Growth: Push notifications (FCM, APNs), deep linking, App Store Optimization (ASO), Apple Search Ads, SEO, analytics (Mixpanel, Firebase Analytics, Amplitude, Google Analytics), A/B testing, onboarding flows 🔐 Security & Auth: OAuth 2.0, SSO, biometric authentication (Face ID, Touch ID), JWT, secure data storage (Keychain, encrypted preferences), role-based access control, CORS, rate limiting, input sanitization 🧪 Testing & DevOps: XCUITest, Jest, Detox, Cypress, unit & integration testing, CI/CD (GitHub Actions, Jenkins, Fastlane, Vercel), TestFlight, CodePush (OTA updates), Docker, crash reporting (Sentry, Crashlytics) 📍 Location & Real-Time: Geofencing, MapKit, Google Maps SDK, location-based services, real-time chat & messaging, WebSocket connections, live data sync 🔗 Third-Party Integrations: Social media login & sharing, Twilio (SMS/voice), SendGrid, Cloudinary, AWS (S3, Lambda, Amplify, EC2), Google Cloud, Vercel, Netlify, REST/GraphQL API design & consumption Ready to build something great? Send me a message — let's talk about your project.

Hello, I’m Duygu — a Senior Project Manager with 400+ Upwork hours, 85% Job Success, and a proven track record in digital transformation, operations, and cross-functional project management. What I bring: 7+ years of experience managing Agile and hybrid projects across marketing, technology, and operations. Strong expertise in leading remote teams, vendor management, and process optimization. Skilled in Jira, Asana, Trello, and Monday.com for clear task tracking and communication. How I work: I focus on transparency, efficiency, and measurable results. I provide proactive risk management, budget control, and structured reporting so clients always know exactly where their project stands. Client Value: ✔ Projects delivered on time and within budget ✔ Optimized workflows that save costs and reduce risks ✔ Clear communication and reliable collaboration Let’s connect to discuss your goals and how I can help your project succeed! ------------------------------------------------------------------------------------------------------------------------ Working with teams from different timezones effectively Agile Project Manager Product manager Meistertask Monday.com ClickUp Jira Slack Teamwork Analytical thinking Flexible working hours Communication Vendor Management Change Management IT Project & Program Management Pharmaceutical Project Management Digital Project Management Consulting Digital Transformation Market Research Business Process Improvement Microsoft Office Cross-functional Team Leadership Microsoft Products Management English German Delivery Management People Management Product Management Digital Strategy