Name: Android developers
Brand: Upwork
Rating: 4.8 (337 reviews)

5.0/5
(29 jobs)

👋 Hi there! I'm a Top Rated Senior iOS, Android, and Full Stack Developer specializing in AI-enhanced application development with 1000+ hours of experience. I create high-performance mobile and web applications that leverage generative AI technologies to deliver exceptional user experiences and business value. I excel at integrating AI capabilities including OpenAI, Claude, and Google Gemini APIs to build intelligent features such as personalized recommendations, smart chatbots, content generation, and predictive analytics - all while maintaining scalability, security, and performance. I have extensive experience in mobile development, ensuring smooth performance, intuitive UI, and strong backend integrations. Whether it's native iOS and Android development (Swift, Kotlin, Java) or cross-platform solutions (React Native, Flutter), I create fast, secure, and scalable apps. Alongside mobile expertise, I also build modern front-end web applications with React.js and Next.js, delivering seamless experiences across platforms. Additionally, I bring strong expertise in App Store and Google Play Store management, handling App Store submissions, compliance, reviews, and updates. I also specialize in Google Ads integration, ensuring effective in-app monetization strategies that maximize user engagement and revenue. 💡 Why Work With Me? ✅ Expert in Mobile & Web Development – Deep knowledge of frameworks, UI/UX principles, and performance optimizations ⚡ Performance-Driven – I optimize apps for speed, security, and scalability 📈 Business-Oriented Approach – I align development with your goals to maximize impact 💬 Strong Communication – Clear updates, efficient collaboration, and on-time delivery 📱 App Store & Play Store Expertise – Seamless app submission, compliance, and optimization for better visibility 💰 Google Ads & Monetization – Integrated ads, in-app purchases, and revenue strategies 🤖 AI Integration Specialist – Custom LLM integration, intelligent features, and responsible AI implementation 📱 Mobile Development Expertise • iOS: Swift, SwiftUI, UIKit, CoreData, Combine • Android: Kotlin, Jetpack Compose, Java, Room Database, LiveData • Cross-Platform: React Native, Flutter • Mobile Optimizations: Animations, Lazy Loading, Memory Management, Battery Optimization • App Store & Google Play Submission: Submission, compliance handling, review management, ASO (App Store Optimization) • Google Ads & Monetization: In-app advertising (AdMob, Google Ads SDK), in-app purchases, user retention strategies • Third-Party SDKs & APIs: Firebase, Supabase, Google APIs, Payment Integrations • AI Integration: OpenAI, Claude, Google Gemini, custom ML models, intelligent UX features 💻 Front-End Development Expertise • Web Development: React.js, Next.js, TypeScript • UI Frameworks: Tailwind CSS, Material UI, Styled Components • Performance Optimizations: Server-side rendering (SSR), lazy loading, caching strategies • API Integration: RESTful APIs, GraphQL, AI service APIs 🛠 Tech Stack & Expertise 📱 Mobile Development: Swift (SwiftUI), Kotlin (Jetpack Compose), Java 🔄 Cross-Platform: React Native, Flutter 🌍 Front-End Development: React.js, Next.js, TypeScript 🗄 Backend & Databases: Firebase, Supabase, Node.js ☁ Cloud & DevOps: AWS, Google Cloud, Docker, Kubernetes 🎨 UI/UX Collaboration: Figma, Zeplin 🤖 AI Services: OpenAI GPT, Claude, Gemini, TensorFlow Lite 📂 Projects I've Worked On 🩺 Health Monitoring App with AI Insights – Developed a mobile application for tracking and analyzing health data with personalized recommendations. 🏋️ Full-Stack Gym Membership App – Built a complete mobile and backend solution for gym management, integrating payment systems and user tracking. 💬 Chat Application with Smart Responses – Implemented a secure, real-time messaging platform with modern UI features and AI assistance. 🔒 VPN App – Designed and developed a high-speed, secure VPN service with optimized performance. 🌐 Browser Apps – Created advanced mobile applications with built-in web browsing capabilities and custom features. 🖥 Web Dashboards & Frontend Apps – Developed React-based web applications for data visualization and user interactions. 📲 App Store & Play Store Optimized Apps – Successfully submitted and managed multiple apps, ensuring compliance and maximum visibility. 💰 Ad-Integrated & Revenue-Optimized Apps – Implemented Google Ads SDK & in-app monetization strategies for increased app revenue. 🚀 Need a high-quality mobile app, web application, or full-stack solution with AI capabilities? Let's connect and bring your innovative project to life!

Android

ExpressJS

React

Back-End Development

Front-End Development

Node.js

Firebase

iOS Development

Kotlin

JavaScript

Smartphone

iOS

Mobile App Development

React Native

Android App Development

5.0/5
(30 jobs)

Hi, I'm Muhammet – a passionate full stack developer who builds fast, scalable, and user-focused web & mobile applications. Over the past 8 years, I’ve worked with startups, agencies, and product teams to bring bold ideas to life using technologies like React, Next.js, React Native, and Node.js. Whether you need a clean MVP or a complex platform, I know how to deliver quality code — on time. 🚀 Why work with me? 🧠 I think beyond code — I care about product, users, and growth. 📱 I build seamless experiences across web and mobile. 🛠️ I'm proactive, fast, and always focused on solving real problems. 💬 Great communication and transparency guaranteed. 🛠 Tech Stack: React, React Native, Next.js, Node.js, TypeScript, Firebase, MongoDB, PostgreSQL, REST & GraphQL APIs, AWS Let’s build something great together. Send me a message — I’d love to hear about your project!

Android

Stripe API

Stripe

Payment Functionality

Android App Development

Amazon Web Services

React

Node.js

Map Integration

iOS Development

HTML

React Native

CSS

Chat & Messaging Software

Python

5.0/5
(28 jobs)

I’m honored to be one of the first specialists on Upwork to focus solely on RFID solutions, with over 6 years of experience and hands-on work on projects involving millions of RFID tags. My work spans various industries — from retail and jewelry to healthcare and logistics — helping businesses improve inventory accuracy, reduce manual effort, and streamline their operations through smart RFID systems. 𝗞𝗲𝘆 𝗦𝗸𝗶𝗹𝗹𝘀: 📱 Mobile App Development: Crafting robust and user-friendly Android & iOS applications tailored for RFID systems, handheld devices, beacons, NFC, and IoT projects. 🔗 ERP & Data Integration: Seamlessly connecting RFID systems, IoT devices, ERP software, and various databases for optimized operations. 🛠 Firmware & Embedded Systems Development: Customize firmware for RFID modules, NFC readers, microcontrollers, and IoT boards to meet precise project requirements and boost performance. 📊 Desktop & Web Solutions: Design intuitive desktop applications and dynamic web dashboards that convert complex IoT, RFID, and ERP data into actionable insights. 🏆𝗜𝗻𝗱𝘂𝘀𝘁𝗿𝘆 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲: Jewelry | Warehouses | Apparel | Manufacturing | Hospitals 🛠 𝗧𝗲𝗰𝗵𝗻𝗶𝗰𝗮𝗹 𝗣𝗿𝗼𝗳𝗶𝗰𝗶𝗲𝗻𝗰𝗶𝗲𝘀: -𝗕𝗟𝗘 & 𝗡𝗙𝗖 𝗜𝗖𝘀: TI CC2640, nRF52832 -𝗘𝗺𝗯𝗲𝗱𝗱𝗲𝗱 𝗦𝘆𝘀𝘁𝗲𝗺𝘀: ESP32, STM32, PIC Microcontrollers -𝗥𝗙𝗜𝗗 𝗗𝗲𝘃𝗶𝗰𝗲𝘀: RFID Modules, Fixed and Handheld RFID Readers, RFID Printers -𝗢𝘁𝗵𝗲𝗿 𝗧𝗼𝗼𝗹𝘀: Arduino, Raspberry Pi, etc. I offer expert guidance in selecting the most suitable RFID, BLE, and NFC tags, devices, fixed and handheld readers, antennas, printers, and modules for your projects. Additionally, I can assist in sourcing high-quality equipment at the most competitive prices. Let’s work together to harness the power of RFID, BLE, and NFC technologies for your business success. 🟢𝙀𝙓𝙋𝙀𝘾𝙏𝙏𝙄𝙊𝘼𝙉𝙎 𝙊𝙁 𝙒𝙊𝙍𝙆𝙄𝙉𝙂 𝙒𝙄𝙏𝙃 𝙈𝙀: 🌟 I will only work on projects that I am confident I can deliver 100%. 🌟 I offer intelligent recommendations to boost results, revenue, and reduce costs. 🌟 I ensure top-tier work, consistently exceeding client expectations with dedication. 🌟I own tasks, communicate progress clearly, and take responsibility seriously.. 🌟I am reliable and have a quick turnaround time for requests and queries.

Android

Automation

Microsoft Power BI

Embedded System

Desktop Application

Zebra Programming Language

Python

C#

Inventory Management

RFID

5.0/5
(48 jobs)

I have 5 years of experience developing commercial ❤️AR/VR apps & games ❤️. Additionally, I have 10 years of total experience in the video games industry. Previously I have been a part of 35+ video games (50M+ downloads) as a sound designer and original music composer. My previous AR/VR projects include: 🏠 House browsing 🤸‍♀️ Sports training 👠 Brand interaction 🚗 Automobile showroom Working with me, you will get: ✅ Development from prototype to production ✅ Deployment and app store management ✅ Help with project direction ✅ Manageable, well-documented, self-documenting code ✅ Best design patterns for Unity ✅ Additional feedback on game design and UX ✅ Smooth communication If you have a project with more complex needs than a single developer, we can bring it into being with my own agency "Post Illusions" here on Upwork (link on my profile, or chat with me about it). What my clients say on my AR/VR work: 💭 Guney was very professional and a key member to our software development. I strongly recommend working with him! (Regisco) 💭 His communication was top-notch, he met all deadlines, and his skills were reasonably strong. (Mahindra) 💭 He’s been reliable, competent, and easy to work with. I strongly recommend doing business with him! (Regisco) 💭 Great job as usual, love having Guney as part of our team. (Playbook Five) 💭 Advance knowledge & quick solutions. (Mahindra) 💭 Guney did a good job and communicated well. I would recommend him. (The Peak Beyond) 💭 Guney was a pleasure to deal with, we highly recommend him! (Immersive Studios) 💭 Thanks for the help Guney we really appreciate it. (Lyons International) 💭 Thorough, thoughtful and fast. (Superpowered) SERVICES ✅ VR development ✅ AR development ✅ Video game development TOOLKIT 🔨 Unity 3D 🔨 C# 🔨 Google Cardboard 🔨 Oculus Platform 🔨 Firebase 🔨 Git 🔨 GitLab CI/CD 🔨 Unity Gaming Services ADDITIONAL TOOLS 🔧 Database (SQL, MySQL, MariaDB) 🔧 PHP (back-end) 🔧 Javascript COMMUNICATION 🕗 European working hours 🕗 Flexible for meetings with the US & Canada BACKGROUND 🎓 2012-2022 - Participated in Global Game Jam 9 times. 🎓 2020 - 2 open source repositories in "2020 GitHub Archive Program". 🎓 2012 - Certificate - Game Design Summer School - Bahcesehir Uni. 🎓 2010 - B.M. - Music Composition & Theory - Bilkent Uni. (Partial scholarship) 🎓 2009 - Published a paper on statistical process control in the journal of "Quality and Reliability Engineering International". 🎓 2007 - M.S. - Industrial Engineering - Middle East Technical Uni. (State-funded) 🎓 2003 - B.S. - Industrial Engineering - Bilkent Uni. (Full scholarship) (M.S, B.S, and B.M degrees from Times Higher Education World Rankings Top 200 colleges at the time of graduation) 💬 Connect with me to discuss your project. I'll be more than happy to help and lead.

Android

Mobile Game

AR & VR Development

VR Application

AR & VR Applications

AR & VR

Unity

Augmented Reality

Virtual Reality

Oculus Rift

Oculus Go Game

C#

Game Development

Video Game

4.7/5
(8 jobs)

Hello, my name is Hissam Faramawy, from Egypt and currently located in Istanbul. I have worked on 1000+ functional Flutter screens during my 5 years of experience in Mobile App Development. I will maintain a professional and friendly communication all the time. 🏅 5 years of Mobile App Development including Flutter - since version 1.9 🏅 30+ Flutter apps launched and maintained 🏅 1000+ functional Flutter screens 🏅 100k+ downloads with 4.9 average star rating Work Ethics 💎 Clean & Expandable Code 🗿 Delivery on Time 🏁 Friendly 24/7 Communication 🫱🏻‍🫲🏼 MVP app within weeks 🏃 Post-launch maintenance ⚙️ 𝐀𝐥𝐰𝐚𝐲𝐬 𝐢𝐧 𝐲𝐨𝐮𝐫 𝐀𝐩𝐩 High quality app Responsive UI Great user experience Use of native style widgets (e.g.Cupertino for iOS) Smooth navigation and scrolling Fast app and usage of loading widgets Works perfectly on iOS and Android platforms Clean code Fix issues of publishing app on App Store Follow the details of your UI design details, if you have one 𝐖𝐡𝐚𝐭 𝐈 𝐜𝐚𝐧 𝐇𝐞𝐥𝐩 𝐲𝐨𝐮 𝐰𝐢𝐭𝐡? ✅ Flutter App Ready and Publishing on Stores ✅ Make Changes and Fix Bugs for your Existing Flutter App ✅ Backend APIs Integration ✅ Manual Login and Sign Up ✅ Social Media Authentication ✅ Phone Number Authentication ✅ Change Email and Forgot Password ✅ Firebase Database ✅ Cloudinary for Image Database ✅ MongoDB Integration ✅ Push Notification ✅ Google Maps ✅ Live Location ✅ Chat System ✅ Unit Testing ✅ Payment System (Stripe, PayPal, Etc) ✅ Monthly and Yearly Subscription ✅ In-App Purchase ✅ Google Ads ✅ Change Language ✅ Offline Mode ✅ Use Camera or Import Images From Library ✅ Complex Animation ✅ ARkit 𝗔𝗽𝗽𝘀 𝗜 𝗖𝗮𝗻 𝗛𝗲𝗹𝗽 𝘆𝗼𝘂 𝗕𝘂𝗶𝗹𝗱 Car Rental App Hotel and Flight Booking App Food Delivery App ChatGPT Based App Photo Editing App Fitness App Taxi App E-commerce App Finance Management App Education App Real Estate App Health App Event Management App Logistics App Job Search App Grocery Delivery App Marketplace App Crypto News App Crypto Currency Prices and Alert App Streaming Video Apps Music App Chat App Voice Call and Video Call App Shopping App Instagram Analytics App VPN App Odoo App Email App Language Translation App Lifestyle App Productivity App AR App Mental Health App

Android

macOS

AI Mobile App Development

Mobile App Development

iOS

App Development

Android App

Android App Development

iOS Development

MongoDB

Firebase

Application

Mobile App

Flutter

5.0/5
(10 jobs)

• Expert Game Developer & Interactive Experience Creator and Designer for 5+ years • Rapid game prototyping and feature development • Unity, Unreal Engine, 3D Modeling • UI/UX implementation • Developer in a top-ranked Play Store game with 10M+ downloads! • Building for Android, iOS and Windows • Scalable Software Architecture design using Zenject and VContainer • Performance optimization for low-end devices • Analytics and SDK integration • Multiplayer development (Photon, Netcode for GameObjects) • Addressables with Cloud Content Delivery • Experience in AI and state machine behaviors • Version control, Git • Fluent in spoken and written English I’m a Unity developer with 5+ years of hands-on experience building mobile and PC games with over 50+ completed projects, working with top publishers (Voodoo, Ketchapp, Supersonic) Let’s build a game that plays better and ships faster.

Android

3D Modeling

Cinematic Video

Gameplay Footage

Unreal Engine

Video Animation

Grasshopper 3D

3D Rendering

iOS

Mobile Game Development

Multiplayer

Game Design

C#

Game Development

Unity

5.0/5
(30 jobs)

Hi everyone, I’ve been programming for over 14 years — it’s not just my profession, it’s also my passion. I handle both project management and software development, ensuring smooth execution from start to finish. ✨ Honesty, quality, and speed are my core values. ⏱ I deeply value time and always make sure to deliver ahead of deadlines. 🔧 My Skills: • Full Stack PHP Developer (Pure PHP, CodeIgniter, Laravel) • Node.js & Express.js • Python • Mobile App Development (Native & Flutter) • Unity Engine (C#) • UX/UI Design 💡 I’m dependable, precise, and a natural problem solver — ready to help you turn your ideas into working solutions.

Android

PHP Script

Node.js

RESTful API

Project Management

Socket.io

CodeIgniter

MySQL Programming

Laravel

API Integration

Web Design

PHP

JavaScript

HTML

5.0/5
(17 jobs)

I have 5 years of Android application development experience. I developed applications with 10 million+ downloads which have 50-60% of keeping rate. Now I have two year of experience in reverse engineering android applications. My experience in android development gave me a really good advantage in my new career path.

Android

Reverse Engineering

FFmpeg

Android App Development

Turkish

English

C#

Java

Kotlin

PHP

5.0/5
(18 jobs)

𝑻𝒐𝒑 3% 𝒐𝒏 𝑼𝒑𝒘𝒐𝒓𝒌 ⸻ I build AI-driven software products from end to end — helping founders and lean teams turn complex ideas into functional, scalable systems across mobile, web, and cloud. ⸻ 🛠️ 𝐖𝐡𝐚𝐭 𝐈 𝐔𝐬𝐞 𝗔𝗜 & 𝗟𝗮𝗻𝗴𝘂𝗮𝗴𝗲 𝗠𝗼𝗱𝗲𝗹𝘀 • OpenAI (GPT, Assistants API, function calling) • Mistral, Anthropic (Claude), embedding + summarization pipelines 𝗩𝗶𝘀𝗶𝗼𝗻 & 𝗢𝗖𝗥 • Google Vision AI, Microsoft Vision API, Tesseract, YOLO, TensorFlow Lite 𝗙𝗿𝗼𝗻𝘁𝗲𝗻𝗱 • Flutter, React Native, Next.js 𝗕𝗮𝗰𝗸𝗲𝗻𝗱 / 𝗖𝗹𝗼𝘂𝗱 • Supabase, Firebase, PostgreSQL • Secure auth, RBAC, email/calendar APIs 𝗠𝗼𝗯𝗶𝗹𝗲 𝗡𝗮𝘁𝗶𝘃𝗲 𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻 • Swift & Kotlin for camera, calendar sync, file access, health data, etc. ⸻ Beyond full-stack execution, I bring deep expertise in designing custom AI agents, fine-tuning language models, and prompt engineering workflows tailored to real business use cases. Whether you’re building a vision-based tool, a reasoning system, or an LLM-backed assistant, I focus on delivering production-ready software that works in the real world. ⸻ 🧭 𝐇𝐨𝐰 𝐈 𝐖𝐨𝐫𝐤 𝗗𝗶𝘀𝗰𝗼𝘃𝗲𝗿𝘆 & 𝗣𝗹𝗮𝗻𝗻𝗶𝗻𝗴 • Focused on understanding the core problem before writing code • Strategic technical planning with scalable architecture in mind • Clear milestones and realistic timelines 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿𝗶𝗻𝗴 𝗘𝘅𝗲𝗰𝘂𝘁𝗶𝗼𝗻 • Well-structured, maintainable codebases across mobile, web, and backend • Optimized for real-world performance, not just demos • Continuous testing and quality assurance baked into the process 𝗦𝗺𝗼𝗼𝘁𝗵 𝗖𝗼𝗹𝗹𝗮𝗯𝗼𝗿𝗮𝘁𝗶𝗼𝗻 • Regular, async-friendly updates with fast response times • Plug-and-play with your tools and team setup • Clean documentation and transparent decisions at every step 𝗟𝗮𝘂𝗻𝗰𝗵 & 𝗕𝗲𝘆𝗼𝗻𝗱 • Confident app store submissions and production deployment • Performance monitoring and issue tracking in place • Available for iteration, scaling, or long-term support ⸻ If you’re building something smart and need someone who understands both the product and the tech — 𝙡𝙚𝙩’𝙨 𝙩𝙖𝙡𝙠. ⸻

Android

Next.js

TypeScript

Web Development

iOS

Mobile App Development

Firebase

Supabase

UIKit

React Native

Swift

Flutter

5.0/5
(15 jobs)

🚀 𝐓𝐨𝐩 𝐑𝐚𝐭𝐞𝐝 𝐏𝐥𝐮𝐬 with a perfect 𝟏𝟎𝟎% 𝐉𝐨𝐛 𝐒𝐮𝐜𝐜𝐞𝐬𝐬 𝐑𝐚𝐭𝐞 🌟 👋 Greetings! With my experience and expertise, I guarantee exceptional results that not only meet your expectations but exceed them. 🚀 Flutter & Dart: I specialize in developing cross-platform mobile applications with Flutter and Dart, ensuring a seamless experience for both Android and iOS users. 🎨 UI/UX Excellence: From Figma-Zeplin to pixel perfect widgets. 🌐 Backend Expertise: I seamlessly integrate Firebase and AWS services, expertise on Rest/Graphql API. 💡 What Makes Me Stand Out: ✅ Top-Rated Plus Status 💯 100% Job Success Rate 💪 State Management Expertise: Provider, Riverpod, Bloc, Mobx. 📱 Cross-Platform Proficiency 🌟 Client-Centric Approach 🤝 Partner with me, and you'll experience: ⏱ Fast Development Turnaround 📈 Continuous Communication 🔐 Secure and Scalable Solutions 🌟 Contact me today to discuss your project and take the first step towards app success!

Android

Hybrid App Development

Flutter

Mobile App Development

Firebase

Mobile App Design

API

iOS

Java

Kotlin

SQL

API Integration

Dart

Mobile App

5.0/5
(7 jobs)

Senior iOS Developer - Android and iOS Developer since 2017 - Worked as an iOS Developer in a Turkish Bank's mobile application from 2018 to 2020 - Worked in a leading mobile operator company in Turkey from 2020 to 2021 - Have been working in a logistics company in Turkey since 2021 - Experienced in both MVVM and MVC design patterns - Experienced in SwiftUI, UIKit and Combine libraries. - Interested in Android Development.

Android

Storyboarding

Model View ViewModel

Unit Testing

Apple Xcode

iOS Development

iOS

Swift

Kotlin

5.0/5
(13 jobs)

🏅🔷TOP RATED 🔷🏅✔️ 💯% Job Success Rate✔️ As a seasoned Senior Software Engineer with over 11 years of hands-on experience, I have successfully delivered numerous projects for both local and international companies. My expertise lies in crafting robust and scalable solutions across various domains. Highlighted Skills: ✅ React - Next.js - React Native - Html - Htmx - tailwind - CSS - SCSS ✅ Node.js - Express.js - Nest.js ✅ Python - FastAPI - Flask - Django ✅ MongoDB - Redis - PostgreSQL - MySQL - SQLite - Realm ✅ REST API - GraphQl - HTTP2 ✅ Nginx - Apache2 - Tomcat ✅ DevOps (Jenkins - Gitlab Ci-Cd - Pipelines) ✅ Linux system administration ✅ Docker, Docker container ✅ Bash script ✅ Grafana - Prometheus ✅ WebSockets - Socket.io ✅ Financial application tech (Padas, Numpy) ✅ Web Crawling (Selenium, Puppeteer, Playwright) ✅ GIT, Bitbucket, GitHub ✅ AWS EC2 / S3 - Google Cloud I thrive on tackling complex challenges and turning them into elegant solutions. Whether it's architecting a high-performance backend system, optimizing database queries for efficiency, or automating deployment pipelines for seamless DevOps workflows, I am committed to delivering excellence in every project. Looking to bring your project to life? Feel free to reach out for a complimentary consultation. I'm here to provide tailored solutions that meet your unique needs and objectives. Don't hesitate to get in touch with any questions or project inquiries. Thank you for considering my services, and I look forward to the opportunity to collaborate with you. Warm regards, Amir

Android

iOS

DevOps

Linux System Administration

React

MySQL

Next.js

React Native

MongoDB

Django

Node.js

JavaScript

Bash

Python

5.0/5
(58 jobs)

Native Android Developer | Java & Kotlin 🚀 Top Rated Plus 💯 100% Job Success Score 8+ years of experience working on native Android applications for high profile clients and businesses. I've strong Java/Kotlin programming skills including low-level performance optimizations and memory management. ✔ Ml-kit, OpenCv, TensorFlow, Camera, Image Processing ✔ Clean Architecture, MVVM, Firebase, Coroutines, Live data, DataBinding, Dagger2/Hilt, Room, Retrofit, Glide, Payments 🚀 Why Choose Me? 8+ Years of Servicing High-Profile Clients Strong Java/Kotlin Programming Skills Developer with a Keen Eye on Technological Advancements Detail-Oriented and Timely Deliveries

Android

Android App

Android Studio

Native App Development

Firebase

Java

Android App Development

Kotlin

Mobile App Development

SQLite

Camera Operation

NFC

Mobile App

Android SDK

OpenCV

5.0/5
(3 jobs)

As a mobile app/SDK development contractor/consultant with over 10 years of experience, I specialize in native app development for both Android and iOS using Kotlin and Swift. I have a thorough understanding of the mobile app development lifecycle, including UI/UX design and app architecture. I work with a dedicated mobile team to deliver high-quality mobile apps and SDKs that meet your business requirements. I have extensive experience in integrating third-party APIs and libraries, as well as implementing complex features such as push notifications, in-app purchases, and location-based services. On the other hand, I have experience with Kotlin Multiplatform Mobile (KMM), a new technology that allows developers to write shared business logic for mobile apps using Kotlin. With KMM, you can significantly reduce the time and cost of app development, while still delivering high-quality, native mobile apps for both Android and iOS platforms. The benefits of using KMM include faster development cycles, reduced code duplication, and easier maintenance. With KMM, you can write shared code for features like data models, networking, and business logic, while still using native UI components and platform-specific APIs. This approach allows you to deliver a seamless user experience on both platforms, without compromising on performance or quality. In addition to mobile app development, I also provide consulting services, including technical guidance, project management, and ongoing support. My goal is to help you achieve success with your mobile app project, from concept to launch and beyond.

Android

Mobile UI Design

Minimum Viable Product

UI/UX Prototyping

Mobile App Design

iOS SDK

Android SDK

iOS Development

Android App Development

Mobile App Development

iOS

Swift

Kotlin

Native App Development

5.0/5
(17 jobs)

As a Full Stack Developer; I've been worked on many programming languages and frameworks. I've coded on each part of development(frontend, backend, mobile and gaming). I always track new technologies and try to make more stable and faster systems that I'm working on. Also I like developing games, make animations or 3d or 2d art drawing about them. -There are projects that I have done with all languages or frameworks such as Java, C#, Kotlin, Flutter(Dart), Unity3d, Php, Asp.Net, TCL, Assembly, VB, C++ and C… I used MySQL, SQLite, PostgreSQL, Oracle SQL and MSSQL. Some new ai techs that I used: N8N, ComfyUi, local LLM, Ollama, RAG, fine-tune, Blockchain, web3... I used both C# and Javascript languages in Unity 3d. I also developed an application using assembly and compiled with Keil and tested in Proteus. -I helped a friend's thesis project. An application that takes ECG data with Arduino and transfers it to the android device. (There are also processes such as furier transform and noise removal) I have used programs such as Photoshop, 3DsMax(Solid Modeling only), Sketch Up, Fireworks, Office suite, Audacity, ns2 Network Simulator and many other programming editors. - I have good practice with Linux commands and ssh. I also had experience in system setup and virtualization. - Apache, Mysql, php, tomcat etc. on Ubuntu. I did the setups and ssl creation and setup. Some of the projects I have prepared: - Xmpp & Openfire server system with Android - IOS and web part ready whatsapp style chat system. (Open source projects are customized for clients) - Research on Big Data with Apache Spark and Hadoop... - Mysql index and query optimization, Master-Master and Master-Slave installations... - I made some improvements with swift in the existing iOS application. - Spring Boot with MongoDB & Mysql, 2 db usage together, rest service project.. -I applied to the Tübitak Software Projects Competition with my thesis project called “Social Connection”, which includes functions such as controlling another android device, getting its location and chatting.

Android

2D Animation

Game Development

AR & VR

Blockchain

SQL

Game Design

Mobile Game

In-App Purchases

Java

Kotlin

C#

Unity

Flutter

iOS

5.0/5
(3 jobs)

🌍 5+ years specializing in Flutter and FlutterFlow for cross-platform iOS, Android, and web dev 📱 Developed 15+ mobile and web applications with consistent positive feedback 🔥 5+ years integrating Firebase: Firestore, Cloud Functions, Authentication, Analytics 🔄 Extensive experience with Provider, Riverpod, GetX, and Bloc for state management 🚀 Skilled in building high-performance, cross-platform applications 📐 Master in responsive design and adaptive layouts 🧪 Proficient in automated testing: unit, widget, and integration tests Hello! I'm an expert in Flutter and FlutterFlow for Mobile and Web App Development. With over 5 years of experience and more than 15 high-quality apps delivered for iOS, Android, and the web, I am here to transform your app ideas into reality. ➥ Services Offered: • Full Stack development for Android, and iOS using Flutter & FlutterFlow • Rapid Prototyping and MVP Development • User Interface & User Experience Design (UI/UX) • App Deployment and Publishing Assistance • App performance optimization I began my career developing native apps such as Todo lists, note-taking tools, and chat applications like WhatsApp. After discovering Flutter, I was intrigued by its ability to streamline Android and iOS development into a single codebase. Over time, my interest in Flutter grew, leading me to explore FlutterFlow for developing apps with low-code solutions. For the past 5 years, I have dedicated myself to mastering Flutter and FlutterFlow, consistently delivering exceptional applications. I'd love to learn about your project and see if we can be a great fit. Let’s transform your app ideas into reality together!

Android

Mobile App Localization

Web App Localization

Web Application

GitHub

Firebase

Web & Mobile Design Consultation

Web Development

Android App

iOS Development

Back-End Development

Front-End Development

Flutter

Dart

Mobile App Development

5.0/5
(3 jobs)

HOW CAN I HELP YOU Hello, I'm Emir. I develop mobile application solutions to business owners/entreprenuers. I help you with developing cross-platform, modern and native-looking mobile applications && all sorts of more stuff. When you hire me, you'll be left with clean, modular and non-repeating code (if project requirements allow so). Most developers on Upwork will bring smelly code to the table which at first seems managable but as the project scales it'll be harder and harder to maintain the codebase let alone develop new features. I'll try my best to not be that developer. WHAT TO EXPECT - Receive replies to messages throughout the day. - Voice/Videos conferences periodically, managing the business and strategic problems. - Weekly/Monthly periodic updates and working demos/PoC's - 7/24 support and in-depth conversations about your products and how to improve them.

Android

Mobile App

Dart

Firebase Cloud Firestore

Mobile App Development

iOS

Firebase

Flutter

AWS Amplify

5.0/5
(19 jobs)

Experienced software engineer for web and mobile development. Interested in working for both startup and existing project. Worked in small, medium and enterprise applications using modern web and mobile technologies. Attention in details, fast learner and interested in problem solving.

Android

CSS

HTML

Git

Python

MySQL

Java

React

PHP

Node.js

Kotlin

JavaScript

React Native

Firebase

iOS

4.8/5
(10 jobs)

I'm a developer with experienced in development of mobile and web applications. Currently I'm mostly working with flutter. Also I have experience in native app for Android and iOS because of working on them for many years. For web applications I use Flutter web. I manage projects from scratch to finish with phases for application analysis, design database architecture, development and publish app on the market.

Android

API Integration

Payment Processing

Stripe

Payment Gateway Integration

Google Cloud Platform

Mobile App Development

Database

Firebase

iOS

Web Application

JavaScript

Dart

Map Integration

Flutter

4.7/5
(17 jobs)

Hello 👋 As a Senior Full-Stack developer with over 12 years of experience in software development, I am excited to bring my skills and energy to your team. I am confident that my skills and experience make me an excellent fit for any project, and I am excited to bring my expertise and energy to your team. Expertise in: ❇️Strong foundation in both front-end and back-end development ❇️ JavaScript and TypeScript, with a focus on building high-performing and scalable web and mobile applications using React, React Native, and Expo (since SDK 38) ❇️ Proven ability to work with both managed and bare workflow apps in Expo ❇️ GraphQL and OpenSearch for efficient data querying and search functionality ❇️ MongoDB and Node.js to build powerful and efficient back-end systems ❇️ Ant Design and MUi UI frameworks for web development ❇️ NW.js or Electron.js for desktop application development I am a proactive, detail-oriented, and reliable developer with excellent communication skills, and I have a strong track record of delivering projects on time and to the highest quality standards. I am available almost anytime and always looking to expand my knowledge and stay up-to-date with the latest industry trends. I hope this summary gives you a sense of my skills and experience, and I look forward to the opportunity to work with you. Please don't hesitate to reach out if you have any questions or would like to discuss a project further. I am eager to bring my skills and energy to your team and help bring your project to life.

Android

Back-End Development

Google Cloud Platform

Front-End Development

Expo.io

Data Scraping

Full-Stack Development

JavaScript

React Native

Firebase

Node.js

API Integration

MongoDB

React

iOS

4.8/5
(46 jobs)

I'm an experienced Windows, iOS and Android Reverse Engineer. I have a lot of experience in reversing applications, games, programs and systems. With +15 years of hands-on experience in Reverse Engineer and Malware Analysis, I am also a cybersecurity expert with experience in cybersecurity research and development at a world-class R&D laboratory in the field of Cyber Operations. In this work, I gained experience in network traffic analysis, malware analysis and cryptography. My main skills: * Extract Data, Code, Algorithms, Signatures and Network Addresses from Android Apps, iOS App and Windows App * Deep expertise in Smali bytecode * Decompile Apk File and convert to full source code * Application Modification for Add, Remoave, Modify Functionalities * Bypass SSL pinning. Interception, Modification and Analysis of Network Traffic * Creation of Private API for a Applications or Programs * Decompilation, Debugging, Analysis and Modification of Native Android Libraries * Know arm and x86 assembler * Expertise in analyzing sophisticated malware using tools like IDA Pro, Ghidra, and x64dbg. * Have Experience in Reverse Unity, Cocos, Kony Android Apks * Debuggers, Disassemblers with Windows x86 and x64. * Creating Scripts/Plugins for Deobfuscation * Reversing iOS, Android Apps and Developing Tools to Automate * Server solutions (including serverless solutions) * interaction with BLE devices (BLE 4, BLE 5 Coded Phy) * Mobile apps Reverse Engineering (decompilation, creation of mods, API extraction, decryption) * Android APK patching and Binary Patching, Binary Decompilation * Root Detection and Emulator Detection Bypass * Network Traffic Analysis and Malware Analysis * Deobfuscation and Unpacking Applications * Web-Scraping/Crawling and Automation Expert * Browser Automation & Testing with Leverage Selenium, Multilogin, and Puppeteer * Data Analysis & Manipulation * Making custom tools for unpacking executable files as standalone tools and as plugins for debuggers * Reverse engineering eprom communication and ecu reverse engineering * firmware and hardware reverse engineering * Creating scripts/plugins for automatic and semi-automatic deobfuscation with IDA * Developing disk/storage/volume stack drivers * reversing iOS/android apps and developing tools to automate it * Advanced Web Scraping Techniques external APIs, uncovering hidden functionalities and potential enhancements through reverse engineering.

Android

HackerRank

Penetration Testing

Vulnerability Assessment

Ethical Hacking

Internet Security

Cryptography

Security Engineering

Encryption

Python

Firmware

Android App Development

Assembly Language

Information Security

Reverse Engineering

5.0/5
(1 job)

✅ %100 Job Success ✅ 35+ Successful Mobile Apps & Web Projects ✅ Fluent in English ✅ Full-Stack & Web Development Expertise ✅ iOS & Android Support ✅ Free Basic Design Support ✅ Custom UI/UX Design Support by Professional Designers ✅ App & Web Marketing Support ✅ Unlimited Revisions ✅ Free Consultation Call 🙋 Does This Sound Familiar? 💡 You have an amazing idea and need a development partner who truly gets you. 🔧 There’s a pressing issue in your industry, and you want to tackle it head-on with a web or mobile app. ⏳ You’re racing against time to finish those last few features for your next funding round. ⚠️ You’re stuck with an unreliable partner, dealing with poor quality, surprise costs, or zero transparency. 🤔 You’re worried about post-launch support and the maintenance that comes after. If any of these ring a bell, you’re in the right place! I provide end-to-end full-stack and web development services, covering every phase—from initial planning to ongoing support—so you can focus on the one thing that truly matters: 🚀 GROWING YOUR BUSINESS What You’ll Gain by Collaborating With Me Mobile & Web Development Services || iOS app development || Android app development || Cross-platform app development || Native app development || Full-Stack Web Development || Website development || Web application development || Frontend & Backend (React, Vue, Angular, Node.js, Python, Laravel, etc.) || Mobile app design || App UI/UX design || App development services || Custom app/web development || Hybrid mobile app development || Flutter mobile app development || React Native app development || Mobile app testing || App deployment services || Web hosting & deployment || Mobile/web maintenance || Updates and improvements || App store optimization || Mobile/web solutions for business || Enterprise app development || iOS app developers || Android app developers || Web development agency || Cross-platform app solutions || API integration || Performance optimization || Scalability || Localization services || Custom features || Security features || Swift for iOS || Kotlin for Android || Java for Android || HTML/CSS/JS || PHP || Node.js || Python || Ruby on Rails || iOS UI/UX design || Android UI/UX design || Web UI/UX design || Testing and debugging || Analytics || Push notifications || Integration with third-party services || Web & App marketing || Healthcare apps || E-commerce app/web solutions || Education platforms || FinTech solutions || Real Estate || Fitness || Food delivery || Travel || Social media || Event planning || Retail || Logistics || Finance || News || Fitness trackers || Meditation || Sports || Gaming || Streaming || Subscription-based apps || Cryptocurrency || Charity and Non-profit apps || Loyalty programs || Transportation || Smart home & IoT || Job search apps || Taxi booking || Delivery || Digital wallet || Fleet management || Healthcare appointment apps || Online learning platforms || Video conferencing || Car rental || Package tracking || Concierge service || Online ticketing || Personal finance solutions || Portfolio management || Online grocery || Custom CRM || Chatbot || Voice-controlled apps || SwiftUI || Jetpack Compose || Progressive Web Apps (PWA) || Objective-C (iOS) || Firebase integration || AWS cloud deployment || Google Cloud integration || Azure services for mobile & web || Payment gateway integration || Apple Pay || Google Pay || Agile Development || MVP (Minimum Viable Product) || Prototype & wireframing || CI/CD (Jenkins, GitHub Actions) || DevOps practices || Code review & refactoring || In-app purchases || Subscription models || Geofencing || Location-based services || Social media integration || User authentication & authorization || Real-time chat & messaging || A/B testing || Localization & internationalization || AI-powered solutions || AI chatbots || AI for Mobile & Web ⭐ Why Work With Me? 1. Clear, Consistent Communication I adopt Agile sprints to keep you informed and engaged at every stage—whether it’s iOS, Android, or web development. 2. Custom Solutions for Any Industry From e-commerce to healthcare—or even an Uber-style app—I have the expertise to make it happen on both mobile and web platforms. 3. Long-Term Partnership Enjoy 2 months of free after-launch support, ensuring your app or web project runs smoothly without extra costs. ⚙️ Technical Highlights & Expertise Testing & CI/CD: Mastering UI tests for iOS (XCUITest) and React Native frameworks (Jest, Detox), plus Jenkins or GitHub Actions for continuous integration. Full-Stack Web Development: Proficient in Node.js, Python, PHP, and modern JavaScript frameworks (React, Angular, Vue). Security Best Practices: Implementing robust data protection measures to keep your users and data safe. Continuous Learning & Adaptation: Always up-to-date with the latest mobile and web technologies. Ready to turn your mobile or web idea into a reality? Let’s talk! Click the “Invite” or “Hire” button and let’s get started!

Android

React

React Native

SwiftUI

Mobile UI Design

Mobile App Design

App Feature Development

UX & UI

AI Mobile App Development

Mobile App Bug Fix

Native App Development

Swift

Mobile App Development

iOS Development

iOS

5.0/5
(1 job)

I am an embedded developer with 15 years of HW and SW design experience. I am experienced in embedded/desktop/back-end applications using C, C++, Golang and HW design

Android

Redis

Internet of Things

PCB Design

Golang

AOSP

AWS IoT Core

Application

AWS Lambda

Altium Designer

Embedded System

C++

Embedded Linux

C

5.0/5
(32 jobs)

I am a professional in the field of Android services, for example: FRP Lock: Remove FRP Samsung galaxy, Remove FRP Nokia HMD, Remove FRP Motorola moto... Unlock Mi account, Remove reactivation lock

Android

iOS

4.9/5
(6 jobs)

Creating streaming platforms and services with the most efficient way. I am able to develope any kind of feature for Nginx Web Server platform. Have experiences both front-end and back-end side. I can develope mobile applications for Android using Java with POC. I am mostly experienced on live and vod streaming for any platform (SmartTv, Mobile Applications, Web).

Android

FFmpeg

Streaming Platform

Streaming Software

C

Video Stream

NGINX

C#

C++

5.0/5
(6 jobs)

🌟 Hello! I'm a passionate UI/UX Designer with a flair for the imaginative and over 3 years of professional experience in crafting interactive digital experiences. 🛠 𝑫𝒚𝒏𝒂𝒎𝒊𝒄 𝑫𝒆𝒔𝒊𝒈𝒏 𝑻𝒐𝒐𝒍𝒌𝒊𝒕: - 𝙐𝙓 𝘿𝙚𝙨𝙞𝙜𝙣: I delve into user psychology to develop intuitive layouts and wireframes that enhance user interaction and satisfaction. - 𝙐𝙄 𝘿𝙚𝙨𝙞𝙜𝙣: I blend aesthetics with functionality, creating interfaces that are visually appealing and easy to navigate. - 𝙂𝙧𝙖𝙥𝙝𝙞𝙘 𝘿𝙚𝙨𝙞𝙜𝙣: My designs—from logos to complete visual identities—tell compelling brand stories that engage and inspire. 🚀 𝑾𝒉𝒂𝒕 𝑺𝒆𝒕𝒔 𝑴𝒆 𝑨𝒑𝒂𝒓𝒕? - Innovative Creativity: I thrive on transforming creative challenges into opportunities, ensuring every design is both beautiful and purpose-driven. - Versatility: Whether it’s designing for cutting-edge web interfaces or immersive mobile apps, I navigate all platforms with expertise and ease. - Strategic Solutions: I go beyond traditional design by incorporating comprehensive research and strategy to deliver results that truly resonate. 🌈 𝑹𝒆𝒂𝒅𝒚 𝒕𝒐 𝑪𝒐𝒍𝒍𝒂𝒃𝒐𝒓𝒂𝒕𝒆? I’m excited to bring my unique blend of skills and creativity to your next project. Let’s connect and explore how we can create engaging and effective user experiences together!

Android

User Flow

Responsive Design

iOS

User Experience

Web Application

UI/UX Prototyping

Mockup

User Experience Design

Prototyping

Web Design

App Design

User Interface Design

Figma

UX & UI

5.0/5
(2 jobs)

🥇 𝗧𝗼𝗽 𝟬.𝟭% 𝗼𝗻 𝗨𝗽𝗪𝗼𝗿𝗸. 🇺🇸 𝗠𝗶𝗱-𝗺𝗮𝗿𝗸𝗲𝘁 𝗮𝗻𝗱 𝗲𝗻𝘁𝗲𝗿𝗽𝗿𝗶𝘀𝗲 𝗰𝗹𝗶𝗲𝗻𝘁 𝗳𝗼𝗰𝘂𝘀. ⌛ 𝟴𝟬+ 𝗣𝗿𝗼𝗷𝗲𝗰𝘁𝘀 𝗗𝗲𝗹𝗶𝘃𝗲𝗿𝗲𝗱. ✅ $𝟮𝟬+ 𝗠𝗶𝗹𝗹𝗶𝗼𝗻 𝗦𝗮𝘃𝗲𝗱. 🗣 𝗣𝗮𝘀𝘀𝗶𝗼𝗻𝗮𝘁𝗲 𝗮𝗯𝗼𝘂𝘁 𝗽𝗿𝗼𝗮𝗰𝘁𝗶𝘃𝗲 𝗾𝘂𝗮𝗹𝗶𝘁𝘆 𝗰𝗼𝗺𝗺𝘂𝗻𝗶𝗰𝗮𝘁𝗶𝗼𝗻. ☑️ 𝗢𝗻-𝘁𝗶𝗺𝗲 𝗣𝗿𝗼𝗱𝘂𝗰𝘁 𝗗𝗲𝗹𝗶𝘃𝗲𝗿𝘆. ❌ 𝗡𝗲𝘃𝗲𝗿 𝗢𝘂𝘁𝘀𝗼𝘂𝗿𝗰𝗲𝗱. 🎯 𝟱𝟬+ 𝗟𝗶𝘃𝗲 𝗠𝗼𝗯𝗶𝗹𝗲 & 𝗪𝗲𝗯 𝗦𝗼𝗹𝘂𝘁𝗶𝗼𝗻𝘀. 📄 𝗪𝗵𝗶𝘁𝗲 𝗟𝗮𝗯𝗲𝗹𝗶𝗻𝗴 𝗔𝗺𝗲𝗻𝗮𝗯𝗹𝗲. 🌟 𝗙𝗼𝗿𝘁𝘂𝗻𝗲 𝟱𝟬𝟬 𝗖𝗹𝗶𝗲𝗻𝘁 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲. 🎨 𝗦𝗽𝗲𝗰𝗶𝗮𝗹𝗶𝘇𝗲𝗱 𝗶𝗻 𝗦𝗮𝗮𝗦 & 𝗠𝗼𝗯𝗶𝗹𝗲 𝗔𝗽𝗽 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁. I’m Metehan—your partner for end-to-end SaaS and mobile app development. With 7+ years collaborating with Fortune 500s and high-growth startups, I turn complex ideas into scalable web and cross-device products powered by React.js, Node.js, Django, Supabase, Firebase, Flutter, Swift, AWS, and Docker. Together, we’ll accelerate your roadmap—launching prototypes into MVPs, integrating AI-enabled features, and building robust cloud infrastructures to support millions of users without compromise. 📞 Invite me to your project on Upwork or 𝘀𝗲𝗻𝗱 𝗺𝗲 𝗮 𝗱𝗶𝗿𝗲𝗰𝘁 𝗺𝗲𝘀𝘀𝗮𝗴𝗲 if you’d like to discuss your product vision. 📞 ❝ 𝗦𝗶𝗺𝗽𝗹𝘆 𝘁𝗵𝗲 𝗯𝗲𝘀𝘁 𝗗𝗫 𝘁𝗲𝗮𝗺 𝗮𝗿𝗼𝘂𝗻𝗱. 𝗧𝗵𝗲 𝘁𝗲𝗮𝗺 𝗮𝘁 𝗩𝗶𝘇𝗶𝗼 𝗮𝗿𝗲 𝗶𝗻𝗰𝗿𝗲𝗱𝗶𝗯𝗹𝗲 𝘁𝗼 𝘄𝗼𝗿𝗸 𝘄𝗶𝘁𝗵. 𝗧𝗵𝗲𝘆 𝗱𝗲𝗹𝗶𝘃𝗲𝗿 𝘀𝗼𝗹𝘂𝘁𝗶𝗼𝗻𝘀 𝗼𝗻 𝘁𝗶𝗺𝗲, 𝗲𝘅𝗽𝗹𝗮𝗶𝗻 𝘁𝗵𝗶𝗻𝗴𝘀 𝗰𝗹𝗲𝗮𝗿𝗹𝘆, 𝗼𝘄𝗻 𝗽𝗿𝗼𝗯𝗹𝗲𝗺𝘀 𝗳𝘂𝗹𝗹𝘆 𝗮𝗻𝗱 𝘁𝗿𝗲𝗮𝘁 𝘆𝗼𝘂𝗿 𝗽𝗿𝗼𝗷𝗲𝗰𝘁 𝗹𝗶𝗸𝗲 𝗶𝘁 𝗶𝘀 𝘁𝗵𝗲𝗶𝗿 𝗢𝗪𝗡. ❞ Gandeephan G. – C-suite Leader 🗣 𝗢𝘂𝘁𝗰𝗼𝗺𝗲𝘀 𝗜 𝗙𝗼𝗰𝘂𝘀 𝗢𝗻 𝗖𝗿𝗲𝗮𝘁𝗶𝗻𝗴 𝗜𝗻𝗰𝗹𝘂𝗱𝗲 🔸 Accelerated Time-to-Market – Rapid MVP launches in as little as 4 weeks. 🔸 Revenue Growth – New features driving 25–40% upticks in ARR. 🔸 Operational Efficiency – Automated workflows reducing manual effort by 60%. 🔸 Scalable Performance – Architectures supporting 10× user growth without latency spikes. 𝗦𝗽𝗲𝗰𝗶𝗳𝗶𝗰 𝗖𝗹𝗶𝗲𝗻𝘁 𝗢𝘂𝘁𝗰𝗼𝗺𝗲 𝗘𝘅𝗮𝗺𝗽𝗹𝗲𝘀 🔹 2.5× Increase in Bookings – Travel & Hotel App (React Native + Supabase) drove a 150% uplift in reservations, generating $250K incremental Q1 revenue. 🔹 $75K Cost Savings & 30% ROI – Restaurant Inventory App (FlutterFlow + Supabase) cut stock-out incidents by 80%, freeing $75K in working capital. 🔹 2× Productivity Gain – Task-Management App (React.js, Next.js, Supabase) doubled team throughput, saving ~1,200 labor hours/year (≈$90K value). 🔹 40% Subscription Growth – Fitness App (React Native, Supabase, Django) added $180K in ARR and boosted LTV by 25%. 🔹 3× Engagement & $60K Upsell Revenue – Meditation App (Node.js + Flutter) tripled session length and premium conversions in Q1. 𝗛𝗶𝗴𝗵𝗹𝗶𝗴𝗵𝘁𝘀 𝗢𝗳 𝗧𝗵𝗲 𝗣𝗹𝗮𝘁𝗳𝗼𝗿𝗺𝘀 𝗜 𝗦𝘂𝗽𝗽𝗼𝗿𝘁 🛠 𝗙𝗿𝗼𝗻𝘁𝗲𝗻𝗱 & 𝗠𝗼𝗯𝗶𝗹𝗲: React.js · Next.js · Vue.js · Flutter · React Native · SwiftUI · Tailwind CSS · Material UI · Ionic · Xamarin 🛠 𝗕𝗮𝗰𝗸𝗲𝗻𝗱 & 𝗔𝗣𝗜𝘀: Node.js · Django · Flask · Express.js · Ruby on Rails · Spring Boot · GraphQL · REST · gRPC · Supabase · Firebase · AWS Lambda 🛠 𝗖𝗹𝗼𝘂𝗱 & 𝗗𝗲𝘃𝗢𝗽𝘀: AWS (EC2, Lambda, RDS, S3) · Azure · GCP · Kubernetes · Docker · Terraform · Ansible · GitHub Actions · CircleCI · Jenkins · Vercel · Netlify · Cloudflare 🛠 𝗗𝗮𝘁𝗮 & 𝗔𝗜: PostgreSQL · MySQL · MongoDB · Redis · Cassandra · Next.js · Snowflake · BigQuery · Apache Spark · Apache Kafka · Hadoop · OpenAI API · TensorFlow · PyTorch · Scikit-learn · LangChain 🛠 𝗥𝗲𝗮𝗹-𝗧𝗶𝗺𝗲 & 𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻: Firebase Realtime DB · MQTT · REST Hooks · gRPC Streams · RPC · Zapier · Make.com · n8n · MuleSoft · Twilio · Stripe · Plaid 🛠 𝗔𝗻𝗮𝗹𝘆𝘁𝗶𝗰𝘀 & 𝗠𝗼𝗻𝗶𝘁𝗼𝗿𝗶𝗻𝗴: Google Analytics · Mixpanel · Amplitude · Sentry · Crashlytics · Datadog · New Relic · Prometheus · Grafana · ELK · Kibana · LogDNA 🛠 𝗦𝗲𝗰𝘂𝗿𝗶𝘁𝘆 & 𝗖𝗼𝗺𝗽𝗹𝗶𝗮𝗻𝗰𝗲: OAuth2 · JWT · SAML · OpenID Connect · SSL/TLS · OWASP Best Practices · GDPR · HIPAA · SOC 2 · Penetration Testing · Vault · AWS WAF 🛠 𝗣𝗮𝘆𝗺𝗲𝗻𝘁 & 𝗘𝗰𝗼𝗺𝗺𝗲𝗿𝗰𝗲: Stripe · PayPal · Braintree · Square · Shopify API · WooCommerce · Magento · BigCommerce · Snipcart 🛠 𝗧𝗲𝘀𝘁𝗶𝗻𝗴 & 𝗤𝗔: Selenium · Detox · Appium · Postman · Supertest · Lighthouse 🛠 𝗖𝗼𝗹𝗹𝗮𝗯𝗼𝗿𝗮𝘁𝗶𝗼𝗻 & 𝗣𝗠: Jira · Trello · Asana · Monday.com · ClickUp · Slack · MS Teams · Confluence · Notion Thanks for taking the time to learn more about me. Invite me to your project on Upwork or send me a direct message and let’s build your next SaaS or mobile success together. Talk soon! 👋 Metehan 🚀 ❝ 𝙑𝙞𝙯𝙞𝙤 𝘼𝙄 𝙞𝙨 𝙖𝙣 𝙞𝙣𝙘𝙧𝙚𝙙𝙞𝙗𝙡𝙚 𝗽𝗮𝗿𝘁𝗻𝗲𝗿 𝘄𝗵𝗼 𝗜 𝘄𝗼𝘂𝗹𝗱 𝗵𝗶𝗴𝗵𝗹𝘆 𝗿𝗲𝗰𝗼𝗺𝗺𝗲𝗻𝗱 𝘁𝗼 𝗮𝗻𝘆 𝗰𝗹𝗶𝗲𝗻𝘁 𝘀𝗲𝗲𝗸𝗶𝗻𝗴 𝗗𝗫 𝘀𝗲𝗿𝘃𝗶𝗰𝗲𝘀. 𝗪𝗲’𝗿𝗲 𝗲𝘅𝗰𝗶𝘁𝗲𝗱 𝘁𝗼 𝗲𝘅𝗽𝗮𝗻𝗱 𝗼𝘂𝗿 𝗽𝗮𝗿𝘁𝗻𝗲𝗿𝘀𝗵𝗶𝗽 𝗳𝗼𝗿 𝗮𝗻𝗮𝗹𝘆𝘁𝗶𝗰𝘀 𝗮𝗰𝗿𝗼𝘀𝘀 𝗼𝘂𝗿 𝗯𝘂𝘀𝗶𝗻𝗲𝘀𝗌! ❞ Scott Johnson – Managing Director

Android

Flutter

React Native

iOS Development

Node.js

SaaS Development

React

Artificial Intelligence

Web Application

Mobile App

Python

API

Web Design

JavaScript

Web Development

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