I am a mobile developer specializing in native Android applications, now leveraging AI-driven development workflows to build faster, smarter, and more scalable apps. By combining my strong engineering background with modern AI tools, I deliver high-quality applications with significantly improved speed, accuracy, and efficiency.
With years of hands-on experience in Android and cross-platform ecosystems, I don’t rely solely on AI—I guide it. My deep understanding of mobile architecture ensures that every AI-assisted solution is production-ready, maintainable, and aligned with industry best practices.
Technical Expertise
-Native Android development (Android SDK, Kotlin, Java)
-Modern Android architecture (MVVM, Clean Code principles)
-Jetpack libraries (Navigation, Data Binding, Hilt, Compose)
-AI-assisted development workflows for rapid prototyping and production
-Version control (Git) and collaborative development
-CI/CD pipeline integration for automated delivery
-Firebase and local database management (Room)
-Ad integrations (AdMob, Meta, MoPub) with GDPR compliance
-UI/UX implementation (Figma, Adobe XD)
What Sets Me Apart
⚡ Faster delivery using AI-assisted coding without compromising quality
🧠 Strong engineering judgment to validate and refine AI-generated code
🔧 Ability to jump into existing projects and improve performance, stability, and UX
📱 Proven experience publishing apps across multiple stores
Services
-End-to-end mobile app development (AI-enhanced workflow)
-Rapid MVP development and prototyping
-Refactoring and optimization of existing codebases
-Bug fixing and performance improvements
-Cross-platform consistency (replicating iOS apps on Android)
I focus on building seamless, scalable, and user-centric applications by combining traditional software craftsmanship with the power of AI.
Android App Development
Android SDK
Android Studio
Java
Kotlin
Mobile App Development
Native App Development
Firebase
Mobile App Improvement
Generative AI
ChatGPT
AI App Development
AI Mobile App Development
Large Language Model
AI Development
iOS Development
AI-Generated Code
AI Agent Development
Deniz Eren G.
Izmir, Turkey
$50/hr
5.0
41 jobs
7+ years building mobile and web apps for clients across five continents. I co-run a small two-person studio, so you get senior hands on your project, not a junior hiding behind a flashy agency profile.
Most of what clients hire me for falls into three buckets:
1) SHIPPING APPS PEOPLE ACTUALLY USE
I've built and launched products that are live right now on the App Store and Google Play. For one wellness brand, I built the gamification system and an AI meal-scan feature, then localized the app for the Japanese market. It now has 40,000+ users across 10+ countries. I also took a research SaaS from an empty repo to a paid product running on Stripe.
2) GETTING STUCK APPS UNSTUCK
A lot of people come to me with an app that got rejected in review: broken IAP or subscription setup, metadata problems, data-disclosure policy flags. I've turned those rejections into approvals more times than I can count. If your build is sitting in Apple or Google limbo, this is the thing I'm genuinely good at.
3) AI THAT SHIPS, NOT AI THAT DEMOS
I integrate OpenAI, Claude, and Gemini into real features like meal analysis, smart chat, content generation, and recommendations, and I build the backend so it stays fast and doesn't burn through your token budget.
TECH I WORK IN DAILY
Mobile: Swift/SwiftUI, Kotlin/Jetpack Compose, React Native & Expo
Web: Next.js, React, TypeScript, Tailwind
Backend: Node.js, Firebase, Supabase, Postgres
AI: OpenAI, Claude, Gemini
Plus the unglamorous parts that decide whether an app actually succeeds: App Store and Play submission, compliance, IAP and subscriptions, ASO, and ad monetization.
HOW I WORK
Clear updates, honest timelines, and I'll tell you when something's a bad idea instead of just billing for it. I use modern AI coding tools like Claude Code and Codex as part of my workflow, which means I ship faster without cutting corners, since every line still goes through a senior developer who knows what good looks like.
Send me what you're building and what's blocking you, and I'll tell you straight whether I'm the right fit.
Android
Android App Development
Kotlin
Mobile App Development
React Native
iOS
JavaScript
iOS Development
Firebase
Node.js
React
AI Mobile App Development
Front-End Development
Back-End Development
Vercel
AI Agent Development
ChatGPT
Claude
Artificial Intelligence
Full-Stack Development
Rafael S.
Alanya, Turkey
$50/hr
4.6
50 jobs
Hello!
I am expert Backend Developer with almost 20 years of experience in backend, Android mobile, desktop apps, apps for embedded devices, ERP apps and web development. Proficient in developing applications in wide range of areas, including business applications and database management. Have high attitude expertise in Linux OS management, including building automated servers with set of services/tools for different purposes, virtualization tehcnologies like KVM/libvirt, containerization technologies like LXC, Docker, Kubernetes.
What I can do:
- Planning and implementing the app’s architecture and features.
- Writing apps from the very scratch and further support.
- Code Review, Fixing and supporting the apps written by others.
- Working with a team of developers or solo.
Technical Skills:
* Languages and Frameworks: Java (Spring, Quarkus, Dropwizard....), Kotlin, C, C++, Qt, Rust, Go, Python (Django), JavaScript, PHP
* Platforms: Backend, Android, Linux (Fedora, RedHat, CentOS, Ubuntu)
* Technologies: Docker, Kubernetes, CI/CD, Mobile Development, Docker, KVM, libvirt, IT infrastructure monitoring tools, AWS services, GCP
* Database Management: PostgreSQL, SQLite, MySQL....
- I'm open to working with big and small companies and individual clients.
- I'm comfortable signing an NDA.
- Prefer long-term collaboration.
- Ready to work 30-60 hours per week
I'm open to various projects and would love to show you my creative side too. My commitment to continuous learning keeps me updated with the latest trends and technologies, allowing me to bring cutting-edge solutions to your projects and better expreince. I am giving high attention to details, ready to resolve complicated and complex challenges, always tend to offer most efficient solution.
Thanks for your time
Regards
Rafael S.
Android App Development
Android SDK
Java
Kotlin
Mobile App Development
C
C++
Python
Qt Framework
Linux System Administration
CentOS
Ubuntu
Virtualization
Computer Hardware
Docker
Naeem I.
Istanbul, Turkey
$23/hr
4.7
68 jobs
I'm Naeem Ibrahim -- a Mobile App Developer with 10+ years of experience building high-quality Android and iOS apps for startups and businesses worldwide.
My core focus is Flutter (cross-platform), Native Android (Kotlin/Java), and iOS (Swift) — delivering clean architecture, smooth user experiences, and production-ready apps from idea to App Store/Play Store launch.
-- Mobile Development --
▸ Flutter apps for Android, iOS, Web & Desktop
▸ Native Android apps — Kotlin/Java, MVVM architecture
▸ iOS apps — Swift
▸ State management: BLoC, Riverpod, Provider, GetX,
▸ CI/CD pipelines: GitHub Actions, Fastlane
▸ Unit & widget testing for long-term stability
-- Firebase & Backend --
▸ Firebase Auth, Firestore, Realtime DB, FCM, Crashlytics, Analytics
▸ Supabase & REST APIs
▸ Secure authentication: Email, Google, Apple, Facebook, Phone
▸ Payments: Stripe, PayPal, Braintree, Apple/Google IAP
-- Maps, Location & Real-Time --
▸ Google Maps, OpenStreetMap, Geolocation & location tracking
▸ Real-time chat, push notifications, and live updates
-- IoT & Smart Home --
▸ Tuya SDK & Tuya OEM — custom branded smart home app development
▸ Smart device control, automation, scheduling & remote access
▸ Real-time device communication
-- AI & LLM Integration --
▸ ChatGPT, Gemini, DeepSeek integrations
▸ In-app chatbots, smart automation & document generation
▸ Currently pursuing a Master's degree in AI — deepening expertise in machine learning and Python-based AI development
-- Ads & Monetization --
▸ AdMob & AppLovin
▸ In-app purchases & subscription management
-- Also Available --
▸ Unity 3D game development (2D/3D, Multiplayer Game via Photon PUN2, casual & hyper-casual)
▸ Python backend development & scripting — actively expanding through my Master's in AI
-- Why clients work with me --
✔ 10+ years native Android, 5+ years Flutter
✔ End-to-end delivery: idea → MVP → App Store/Play Store → scale
✔ Clear communication, clean code, and on-time delivery
✔ No surprises — I flag issues early and keep you informed throughout
Have a mobile app idea or an existing app that needs expert attention? Send me a message — I'd love to hear about it.
Android App Development
Kotlin
Mobile App Development
Hybrid App Development
Flutter
Firebase
Python
FastAPI
Supabase
Mobile Game Development
REST API
LLM Prompt Engineering
AI App Development
iOS Development
Internet of Things
API Integration
Chatbot Development
Dart
Google Maps API
Push Notifications
Ahmed Y.
Ankara, Turkey
$25/hr
5.0
58 jobs
I am Ahmed Yousef having more than 4 years of experience in web Scrapping , automation and Android Development.
My major strength lies in:
- Web scrapping
- Automation
- Android Development
- Customization and Optimization
- Desktop Development
#Skills :
----------------------------------------------
✔ Java programming.
✔ Python programming.
✔ C++ programming.
✔ UI Design.
✔ Working with Google APIs
✔ Android Programming.
✔ Flutter.
✔ Dart.
✔ Error and Bugs Fixing
Android App Development
Android Studio
Java
Python
C#
SQL
Dart
Flutter
Desktop Application
Firebase
Ugur K.
Ankara, Turkey
$60/hr
5.0
89 jobs
5+ Years Building Production-Grade Apps
Real Startup Experience & Have worked with 30+ Startups
Cloud-Deployed, Scalable, AI-Powered
Invite me to your project or message me. Accepting new projects.
Senior Full Stack Developer | Next.js, React Expert | AI Integration | Production Apps | Full Stack Development
---
What I Deliver:
1️⃣ Full-Stack Applications - Next.js, Supabase, Firebase, React, TypeScript, PostgreSQL. Production apps with real users, cloud-deployed and scaling.
2️⃣ Backend Architecture - NodeJS, ExpressJS, NestJS, PostgreSQL, Supabase, Firebase, Microservices, RESTful APIs, GraphQL, real-time systems. Serverless and serverfull.
3️⃣ AI Integration - AI-accelerated development with Claude, Cursor, Gemini. LLM integration, chatbots.
4️⃣ SaaS Platforms - Cloud-native apps with auth, Stripe payments, LemonSqueezy Payments, Mollie Payments, Posthog - Google analytics, monitoring. AWS, Vercel, Railway, Firebase, AWS Lighthouse, hetzner deployments.
---
I build production-ready applications that handle real users, real traffic, and real business constraints.
I’ve built and scaled high-traffic event websites handling 200,000+ monthly visitors and 4,000+ transactions per month, as well as fully-functional SaaS products for startups that are actively generating MRR today.
As a founder, I take products from zero to hero; owning architecture, infrastructure, and execution end-to-end.
I combine enterprise-level engineering discipline with startup execution speed, delivering battle-tested systems designed to scale.
---
Why Work With Me:
✨ AI-Accelerated Development - Claude, Cursor, Gemini workflows delivering 4-5x faster without sacrificing quality
🎯 Production-First - Error handling, monitoring, security, scaling from day one
⚡ Full-Stack Mastery - Database to APIs to UI/UX—complete ownership
🔧 Cloud-Native - Serverless or serverfull, architected for 99.9% uptime
📊 Real World Experience - Systems handling thousands of concurrent users in production
---
Tech Stack:
Frontend: React, Next.js 14+, 15+, 16+ React Native, TypeScript, Tailwind CSS, shadcn/ui
Backend: NestJS, Node.js, Express, WebSocket
Database: PostgreSQL, Supabase, Firebase, Prisma, Redis, MySQL, Vector DBs
Infrastructure: AWS, Vercel, Netlifty, Railway, Docker, Serverless, CI/CD
AI: Claude API, OpenAI, Gemini, LangChain, Claude Payment: Stripe, LemonSqueezy, Mollie integrations
---
Results:
✅ Apps with 99.9% uptime handling thousands of users
✅ 60-80% faster delivery via AI-accelerated development
✅ Scalable cloud architectures (serverless/serverfull)
✅ AI features creating competitive advantages
✅ Production code with tests, docs, monitoring
---
Best For:
✔️ Startups building scalable production MVPs
✔️ Founders needing technical co-founder expertise
✔️ AI integration into existing products
✔️ Real-time, cloud-native applications
✔️ Teams valuing quality and speed
✔️ Integrating payment solutions
---
𝗜𝗻𝘃𝗶𝘁𝗲 𝗺𝗲 𝗼𝗿 𝗺𝗲𝘀𝘀𝗮𝗴𝗲 𝗺𝗲. 𝗥𝗲𝗮𝗱𝘆 𝘁𝗼 𝗯𝘂𝗶𝗹𝗱.
Uğur Kellecioğlu | Full-Stack Developer | AI Integration | Production Apps | SaaS | AI
---
*Keywords:*
🔸 Full Stack Developer - Next.js Developer - NestJS Developer - TypeScript Developer - Node.js Developer - React Developer - JavaScript Developer - Frontend Developer - Backend Developer
🔸 React Native Developer - Mobile App Development - iOS Developer - Android Developer - Cross-Platform Development
🔸 API Development - REST API - GraphQL API - Microservices - Backend Architecture - Server-Side Development
🔸 PostgreSQL Developer - Database Developer - Supabase Developer - Firebase Developer - Database Design - SQL - Prisma - TypeORM
🔸 AI Developer - AI Integration - LLM Integration - Claude API - ChatGPT Integration - OpenAI Developer - Gemini Integration - Machine Learning Developer
🔸 Chatbot Developer - Chatbot Development - AI Chatbot - Conversational AI - Customer Service Bot - Chat Application
🔸 Cloud Developer - AWS Developer - Serverless Developer - Lambda Developer - Cloud Architecture - DevOps Engineer - CI/CD
🔸 SaaS Developer - SaaS Development - Web Application Developer - Stripe Integration - Mollie Integration - LemonSqueezy Integration - Payment Gateway - Subscription Platform
🔸 Real-Time Developer - WebSocket Developer - Socket io - Live Chat - Real-Time Application - Event-Driven Architecture
🔸 Startup CTO - Technical Co-Founder - MVP Development - Product Development - Tech Lead - Engineering Manager
🔸 tRPC - Zustand - React Query - TanStack - Tailwind CSS - shadcn/ui - Fastify - Docker - Kubernetes
Next.js
MongoDB
Google Chrome Extension
React
Node.js
JavaScript
PostgreSQL
Tailwind CSS
TypeScript
Firebase Cloud Firestore
NestJS
Supabase
Project Management
Front-End Development
Back-End Development
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