Hire the Best Mobile Freelancers
in Egypt

Hi, My name is Arsanious, I'm a professional Mobile App Developer with a proven ability to efficiently solve complex problems and collaboration with teams to deliver high-quality scalable code. Working as a Mobile App developer is my real passion that originally came starting from being a kid who wants to explore every little thing on mobile technology. 🟣 My Services: ✔️Mobile App Development ✔️Android + IOS ✔️Kotlin ✔️Jetpack Compose ✔️Ktor ✔️Architecture: MVVM, MVI, Clean Architecture ✔️Java ✔️Scalable documented code 🟣 Tools: Coroutines, Flows, Retrofit, ViewModel, Hilt, ViewBinding, WorkManager, AlarmManager, Room Local Database, Git, Android Studio

I’m a Senior Mobile Engineer with 5+ years of experience building scalable, high-performance mobile applications using Flutter and Native Android (Java/Kotlin). 🔹 Core Expertise • Flutter & Dart • Native Android Development (Java/Kotlin) • Mobile Architecture & Scalable Systems • Performance Optimization & Clean Code • Firebase, REST APIs & Third-Party Integrations • AI-powered mobile applications • App Store & Google Play deployment • Cross-functional team collaboration 🔹 Highlights ✅ Top Rated Plus Freelancer on Upwork ✅ 30+ successful mobile projects delivered ✅ Experience with large-scale production applications ✅ Long-term collaborations with international teams ✅ Strong communication and business mindset Check my portfolio, and contact me to discuss more details about the job.

Greetings! I'm Remon Samir, a senior QC Engineer with 4 years of experience. Certified by ITIDA, my expertise covers Manual Testing, API Testing, Mobile Testing, Performance Testing, and Database Testing. My commitment to swift delivery without compromising quality aligns with project demands. I specialize in crafting clear Test Plans, Cases, Defect Reports, and Test Summary Reports for stakeholders' understanding. Key Points: 1. Swift Delivery, Unwavering Quality: Meeting project goals with expedience and quality. 2. Art of Documentation: Effective communication through meticulous documentation. 3. Diverse Test Environments: Operating a comprehensive test lab with 3 Android phones, 2 iOS devices, and a Windows PC for thorough cross-platform evaluations. In a dynamic tech landscape, my proficiency stands as a reliable asset. Excited about the possibility of contributing to your projects. Thank you for considering my candidacy. Warm regards, Remon Samir

🏆 TOP RATED | Top 10% on Upwork | 100% Job Success | 15 Projects Delivered Most Flutter developers have never connected an app to physical hardware. Most IoT engineers can't ship a polished cross-platform product. Almost none of them are wiring AI agents into either. I work at that intersection — and it's where the hardest, most valuable problems live. I'm Mohamed, a Flutter and IoT engineer with 4+ years building production mobile apps, connected device systems, and AI-powered products for startups and businesses across Europe and the US. I own the full stack: Flutter UI, native platform integrations, Firebase/Supabase backends, IoT protocols, and LLM/AI agent layers. I also built and shipped CertifyCrafter — a live B2B SaaS product — solo. So I know what it takes to own a product, not just contribute to one. ━━━━━━━━━━━━━━━━━━━━━━━ WHAT I BUILD ━━━━━━━━━━━━━━━━━━━━━━━ ✅ Flutter apps with deep native hardware integration (BLE, MQTT, platform channels) ✅ AI agents and LLM-powered features inside real mobile products ✅ End-to-end IoT systems: device communication → mobile app → cloud backend ✅ Cross-platform mobile apps (iOS & Android) with Firebase/Supabase ✅ Internal business tools, dashboards, and workflow automation ✅ Full SaaS MVPs from concept to production deployment ✅ OpenAI & LLM integrations (RAG, function-calling, agents) ✅ API design and third-party integrations ━━━━━━━━━━━━━━━━━━━━━━━ RECENT CLIENT FEEDBACK ━━━━━━━━━━━━━━━━━━━━━━━ ⭐ "He was proactive and able to deal with tasks that were not 100% defined yet. He was quick but still brought great code quality. The few times when I thought he had forgotten something, it turned out it was done deliberately and with a purpose. I can highly recommend working with him." — German Medical University (Flutter + Supabase project) ⭐ "Mohamed was an excellent freelancer, showcasing professionalism and hard work to overcome challenges in completing this app." ⭐ "Excellent work, everything was done as planned." ━━━━━━━━━━━━━━━━━━━━━━━ HOW I WORK ━━━━━━━━━━━━━━━━━━━━━━━ ✔ I take ownership — no micromanagement needed ✔ I flag problems early, not after they cost you time ✔ I communicate clearly and ship on time ✔ If something should be built differently, I'll tell you before I build it wrong ✔ Available for full project overlap with EU/UK working hours (EET) Best fit if you're building a mobile product that needs hardware integration, AI features, or both — and you want someone who treats your product like their own. Let's talk about what you're building.

Hi there, My name is Mahmoud and I am an expert in android native and cross-platform app development for IOS and android using Flutter. I can help you deliver the final app from the initial idea analysis, UI/UX design, app development, app test, and final release to the store. I am not a freelancer, I am a business partner whom you will find always to support and involve your idea so it can rise. **Types of applications I have experience with** ✅ Bluetooth apps ✅ Bluetooth apps connecting with boards like Arduino (Reading & Writing data to boards) ✅ Open cv apps( Scanner apps and Image processing) ✅ Social networks (Login, Register, Profile) ✅ In-App Purchase apps ✅ Stream apps ✅ Audio Books apps ✅ Chatbot apps ✅ AI apps ✅ Learning apps ✅ Food apps ✅ E-commerce applications ** Skills and Expertise ** ✅ Java & Kotlin ✅ Web services (JSON -XML ) ✅ App design ✅ App testing ✅ Launch applications ✅ Git and Bitbucket (Version Control) ✅ Cross-Platform ✅ Code Review ✅ JIRA ✅ Mobile Notifications ✅ Material Design ✅ Restful API ** Libraries and frameworks ** ➡︎ RXJava2 ➡︎ Dagger2 ➡︎ Rretroifet2 ➡︎ Butterknfe Picasso & Glide ➡︎ JUnit, Mockito and Espresso ➡︎ Firebase and google services ➡︎ AndroidX/JetPack ➡︎ Exo Player ➡︎ Open Cv ➡︎ ** Design patterns ** ✅ MVP ✅ MVC ✅ MVVP ** Brilliant reviews by my previous clients ** ⭐️ "Mahmoud is very cooprate developer, has very good development experience." ⭐️ Another super great experience with Mahmoud. There is really no problem he cannot solve with Android App. Again this was another app which required external device to connect to phone. Mahmoud developed this remotely in a very professional way and fixed everything till perfection. We feel very lucky to have met him as apart from great competence in developing Android App Mahmoud is very nice and gentle guy to deal with and has always a positive attitude. Well done Mahmoud !" ⭐️ "Job completed on time with outstanding quality of work highly recommended" If we have an idea that you need to make real, Just tell me details and see the magic. Best regards,

With 7+ years as an independent freelancer—backed by 2,300+ logged hours, Top-Rated Plus (Top 3%), and 120+ successfully delivered projects on Upwork—I’ve helped 15 SaaS founders and entrepreneurs bring their vision to life by managing the full product lifecycle from idea to launch. As a Senior Agile Business Analyst and Product Manager for SaaS, B2B, and B2C products, I help founders build their vision from 0 → 1 by defining and managing requirements, backlogs, roadmaps, and prioritization (MoSCoW); delivering user research, competitive analysis, market research, user journeys, wireframes, user stories, and acceptance criteria; and more. Then, I move into QA Analyst work to test and validate releases against requirements and specifications. This includes creating test cases and edge cases, reporting bugs, running cross-platform testing (web, iOS, Android), and performing UAT, functional, UX, and performance testing. Finally, I move into technical writing, creating API documentation, building knowledge bases with AI chatbot integration, writing release notes, user guides, and how-to articles, designing annotated screenshots with callouts, and producing demo and walkthrough videos. As a T-shaped engineer with a primary role as an Agile Business Analyst and Product Manager, plus experience as a QA Analyst and Technical Writer, I’m confident I can help you with the following: 🧰 MAIN ROLE: Senior Agile Business Analyst | SaaS & B2B Product Manager ● Business Analysis & Planning: Understand your idea and high-level requirements. Draft market research, competitive analysis, requirements, scope, and UX research. Draft BRDs and PRDs, and use AI to accelerate documentation so I spend less time writing and more time on strategy, prioritization, and validation. ● Product Management: Define the MVP and roadmap. Create the backlog. Draft user stories, acceptance criteria, business rules, prioritization, validations, and data mapping. Create UX wireframes and sketches, and map user flows and journeys. ● Requirements Engineering & Designing: Designing UML diagrams (use case, sequence, activity, context, ERD, DFD), BPMN (levels 1-3), and flowcharts. Support architecture engineers by creating technical and cloud architecture diagrams. Draft high-level and low-level design documents. ✍️ T-SHAPED ROLE: Technical Writer | API Documentation | Knowledge Bases | Walkthrough & Demo Videos ● Technical Writing & Documentation: Write API and developer documentation using a docs-as-code approach (Mintlify, ReadMe, GitBook, etc.). Build knowledge bases and help centers (Intercom, Notion, GitBook, MkDocs, etc.), including AI chatbot integrations. Create how-to articles, user guides, and release notes in weeks, not months. ● Walkthrough & Demo Videos: Create screencasts, feature demos, and walkthrough videos with AI voiceover, callouts, screen recording, on-screen text, and zoom effects. 🪲 T-SHAPED ROLE: QA Analyst | Test Engineer ● QA vs Requirements Validation: Validate new releases against requirements 1:1, flag mismatches, draft AI-assisted test cases to cover gaps, create UAT test plans, and share them with the dev team. ● Manual & Cross-Platform Testing: Perform manual, cross-platform testing across iOS, Android, macOS, Windows, Linux, and web (Chrome, Safari, Firefox, Edge, Brave). Draft AI-assisted test cases and create bug reports (Sequence ID, Title, Description, Priority, Test Status, Progress Status, Test Steps, Expected Result, Screenshots/Recorded Videos). ⚒️ My Tools I use Notion, Jira, Trello, Confluence, Asana, Azure DevOps, ClickUp, Monday, Slack, Miro, Figma, Claude, ChatGPT, Gemini, Draw io, Lucidchart, Visio, FigJam, Google Workspace, Microsoft 365, Swagger, ReadMe, GitBook, Intercom, MkDocs, Nextra, and Fumadocs. Let’s work together to shape your product faster, clearer, and more effectively. Send me a message, and I’ll be more than happy to help. Best regards, Abdelrahman Ragab