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👋 Hey there! I’m Hanzala, a dedicated Flutter Developer with over 4 years of experience in cross-platform mobile app development. I specialize in delivering high-performance, scalable, and aesthetically pleasing mobile applications for both Android and iOS platforms using Flutter and Dart. Recently, I successfully delivered a high-speed Flutter project in just three days, which led to the following client feedback: “His speed in completing tasks was exceptional... His Flutter skills are clearly top-tier. A highly skilled and professional freelancer!" If you're seeking a results-driven mobile app developer who codes cleanly, communicates clearly, and delivers without delays — I'm a reliable solution. 🔧 Core Expertise in Mobile App Development: ✅ Pixel-Perfect UI/UX – Expert at translating Figma and Adobe XD designs into responsive, interactive Flutter UI. ✅ Advanced State Management – Proficient in GetX, Riverpod, Provider, and Bloc for maintainable architecture. ✅ Flutter & Firebase Integration – Authentication, Firestore, Cloud Functions, Push Notifications, and more. ✅ Backend Integration – Robust REST API integration with secure data handling and efficient performance. ✅ Payment Gateway Setup – Hands-on experience with Stripe, Razorpay, PayPal, and In-App Purchases. ✅ Real-Time Application Features – Including socket.io, live chat, push updates, and dynamic data sync. ✅ Performance Optimization – Code profiling, lazy loading, image caching, and battery usage improvements. ✅ Testing & Debugging – Unit, widget, and integration testing to ensure stability across devices. ✅ Deployment & Store Submission – Complete pipeline management for App Store and Google Play Store deployments. 🌍 Industries & Niches Served: • Health & Fitness Applications • E-commerce & Marketplace Apps • SaaS Platforms • Social Networking Apps • AI & Productivity Tools 🤝 Why Clients Choose to Work with Me: 🚀 Rapid Development Cycles – Fast, iterative delivery without compromising code quality. 🧠 Analytical Problem Solving – Skilled in tackling complex logic, third-party integrations, and edge-case handling. 🧼 Clean, Maintainable Code – Follows best practices, scalable architecture, and team-friendly structure. 🔄 Transparent Communication – Prompt responses, regular updates, and a collaborative workflow. ⭐ Client-Focused Delivery – Prioritizing business objectives, user experience, and long-term app success. 📈 Let’s Build Your Next Mobile App Whether it's a Flutter-based MVP, a production-ready mobile solution, or a revamp of an existing app, I provide comprehensive support — from planning and design to development, integration, testing, and deployment. 💬 Reach out today to discuss your project goals. I’m here to help you turn your app idea into a functional, beautiful, and high-performing mobile application.

I help SaaS, fintech, e-commerce, and mobile teams find release-blocking bugs before their users do. I’m an ISTQB-certified Manual QA Engineer with 4+ years of experience testing web, mobile, SaaS, fintech, e-commerce, and game products. My two completed Upwork QA and playtesting projects each received 5-star client feedback. Clients praised my detailed reports, professional communication, diligence, and practical product insights. What I can test: • Web applications, SaaS platforms, dashboards, and e-commerce workflows • Android and iOS apps across real user journeys • REST APIs with Postman, including positive, negative, and error scenarios • Authentication, permissions, payments, subscriptions, integrations, and edge cases QA services: • Manual, functional, regression, smoke, sanity, exploratory, and UAT testing • Cross-browser, responsive, compatibility, and usability testing • Test plans, test cases, test scenarios, checklists, and release validation • Clear bug reports with severity, priority, reproduction steps, expected vs. actual results, screenshots, and videos • Defect verification and focused regression testing • Playwright, Cypress, and Selenium test automation support when appropriate Tools: Jira, Postman, Playwright, Cypress, Selenium, Linear, ClickUp, Trello, and Google Sheets. You will receive concise, developer-ready findings—not a generic list of observations. Send your staging link, requirements, or highest-risk workflow, and I will recommend a focused QA scope for your product.

𝐃𝐨 𝐲𝐨𝐮 𝐧𝐞𝐞𝐝 𝐚 𝐒𝐨𝐟𝐭𝐰𝐚𝐫𝐞 𝐐𝐀 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫 𝐰𝐡𝐨 𝐜𝐚𝐧 𝐭𝐞𝐬𝐭 𝐲𝐨𝐮𝐫 𝐩𝐫𝐨𝐝𝐮𝐜𝐭 𝐟𝐫𝐨𝐦 𝐚 𝐫𝐞𝐚𝐥 𝐮𝐬𝐞𝐫’𝐬 𝐩𝐞𝐫𝐬𝐩𝐞𝐜𝐭𝐢𝐯𝐞 𝐚𝐧𝐝 𝐜𝐚𝐭𝐜𝐡 𝐛𝐮𝐠𝐬 𝐭𝐡𝐚𝐭 𝐛𝐚𝐬𝐢𝐜 𝐭𝐞𝐬𝐭 𝐜𝐚𝐬𝐞𝐬 𝐦𝐢𝐬𝐬 𝐭𝐡𝐫𝐨𝐮𝐠𝐡 𝐌𝐚𝐧𝐮𝐚𝐥, 𝐅𝐮𝐧𝐜𝐭𝐢𝐨𝐧𝐚𝐥, 𝐑𝐞𝐠𝐫𝐞𝐬𝐬𝐢𝐨𝐧, 𝐚𝐧𝐝 𝐄𝐱𝐩𝐥𝐨𝐫𝐚𝐭𝐨𝐫𝐲 𝐓𝐞𝐬𝐭𝐢𝐧𝐠 𝐛𝐞𝐟𝐨𝐫𝐞 𝐫𝐞𝐥𝐞𝐚𝐬𝐞? As a top-rated Manual QA Engineer with 6+ years of hands-on experience testing Web, Mobile, API, SaaS, and AI-powered applications, with a strong focus on real-user journeys, product reliability, and release readiness. I help product teams validate critical workflows, integrations, cross-browser or cross-device behavior, usability, and edge cases, while providing structured test cases and developer-ready bug reports that make problems easier to reproduce and fix. 𝐊𝐞𝐲 𝐀𝐜𝐡𝐢𝐞𝐯𝐞𝐦𝐞𝐧𝐭𝐬 & 𝐖𝐡𝐚𝐭 𝐘𝐨𝐮 𝐂𝐚𝐧 𝐄𝐱𝐩𝐞𝐜𝐭: 🏆 Top-rated Upwork freelancer with 94% Job Success, a 4.9/5 client rating, 23 completed jobs, and 638+ hours delivered. 🧪 Designed and executed 3,000+ test cases across Web, Mobile, API, and software products, with a strong focus on functional coverage, regression, critical workflows, and real-user behavior. 📱 Performed real-device iOS and Android testing with cross-browser and cross-device validation to uncover compatibility, usability, and user experience problems. You can expect clear communication, proactive ownership, and consistent QA updates while working closely with developers, product managers, designers, and stakeholders. I stay involved from requirement review and test planning through execution, bug verification, regression testing, and release validation, providing your team with clear visibility into product quality before launch. 𝐓𝐞𝐜𝐡𝐧𝐢𝐜𝐚𝐥 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞: 𝗖𝗼𝗿𝗲 𝗤𝗔 & 𝗠𝗮𝗻𝘂𝗮𝗹 𝗧𝗲𝘀𝘁𝗶𝗻𝗴: 𝗥𝗲𝗹𝗲𝗮𝘀𝗲-𝗥𝗲𝗮𝗱𝘆 𝗣𝗿𝗼𝗱𝘂𝗰𝘁 𝗩𝗮𝗹𝗶𝗱𝗮𝘁𝗶𝗼𝗻 - Manual, Functional, Regression, Exploratory & End-to-End Testing - Smoke, Sanity, System, Integration & User Acceptance Testing - Test Planning, Test Case Design, Test Scenarios & Requirement Validation - Defect Identification, Bug Reporting, Retesting & Release Verification - Usability, UI/UX, Compatibility & Cross-Browser Testing - Negative, Boundary, Edge-Case & Unexpected-Behavior Testing 𝗪𝗲𝗯, 𝗠𝗼𝗯𝗶𝗹𝗲 & 𝗔𝗣𝗜 𝗧𝗲𝘀𝘁𝗶𝗻𝗴: 𝗖𝗼𝘃𝗲𝗿𝗮𝗴𝗲 𝗔𝗰𝗿𝗼𝘀𝘀 𝗬𝗼𝘂𝗿 𝗣𝗿𝗼𝗱𝘂𝗰𝘁 - Web Application, Responsive & User Journey Testing - Mobile App Testing across iOS, Android & real devices - Cross-Device, Mobile Regression & Mobile UI/UX Testing - REST API Functional, Integration & Regression Testing - Request/Response, Authentication, Authorization & Error Validation - Frontend-to-API, API-to-Database & Third-Party Integration Testing 𝐓𝐞𝐜𝐡𝐧𝐢𝐜𝐚𝐥 𝐐𝐀: 𝐑𝐞𝐩𝐞𝐚𝐭𝐚𝐛𝐥𝐞 𝐂𝐨𝐯𝐞𝐫𝐚𝐠𝐞 𝐖𝐡𝐞𝐫𝐞 𝐈𝐭 𝐀𝐝𝐝𝐬 𝐕𝐚𝐥𝐮𝐞 - Playwright, Cypress, Selenium & Appium for Regression, E2E, UI, Mobile & API Automation - Database & Backend Testing: SQL Testing, MySQL validation. - CI/CD Quality Engineering: GitHub Actions, Azure DevOps - Performance Testing: JMeter and k6 for targeted Load, Stress, API, and performance validation 𝗦𝗽𝗲𝗰𝗶𝗮𝗹𝗶𝘇𝗲𝗱 𝗣𝗿𝗼𝗱𝘂𝗰𝘁 𝗤𝗔: 𝗖𝗼𝗺𝗽𝗹𝗲𝘅 𝗪𝗼𝗿𝗸𝗳𝗹𝗼𝘄𝘀 & 𝗕𝘂𝘀𝗶𝗻𝗲𝘀𝘀-𝗖𝗿𝗶𝘁𝗶𝗰𝗮𝗹 𝗧𝗲𝘀𝘁𝗶𝗻𝗴 - AI/LLM Response, Accuracy & Behavior Testing - AI Agent, Chatbot, Conversational AI & Voice Agent Testing - Prompt, Context Retention & Session Continuity Testing - Multi-Step, Multi-Role & Complex Business Workflow Testing - RBAC, Authentication, Authorization & Permission Testing - Payment, Subscription, Integration & Release-Readiness Testing 𝐓𝐨𝐨𝐥𝐬 & 𝐏𝐥𝐚𝐭𝐟𝐨𝐫𝐦𝐬: - Bug Tracking & Management: JIRA, Trello, Asana, Linear, ScribeHow - Collaboration & Reporting: Google Sheets, Notion, Slack - Testing Platforms: BrowserStack, physical devices - Performance & Analytics Tools: GTmetrix, SimilarWeb - Documentation: Test Plans, Test Cases, Checklists, FRS, User Manuals 𝐖𝐡𝐲 𝐂𝐥𝐢𝐞𝐧𝐭𝐬 𝐂𝐡𝐨𝐨𝐬𝐞 𝐌𝐞: - I test like a real user, not just a checklist, combining Manual, Functional, Regression, Exploratory, and End-to-End Testing. - I can cover Web, Mobile, API, AI, and connected workflows without losing focus on release. - I verify fixes and regression impact, not just report bugs and move on. 𝗣𝗿𝗲𝗽𝗮𝗿𝗶𝗻𝗴 𝗳𝗼𝗿 𝗮 𝗹𝗮𝘂𝗻𝗰𝗵, 𝗿𝗲𝗹𝗲𝗮𝘀𝗲, 𝗼𝗿 𝗺𝗮𝗷𝗼𝗿 𝗽𝗿𝗼𝗱𝘂𝗰𝘁 𝘂𝗽𝗱𝗮𝘁𝗲? Send me your application link, supported devices, release timeline, and the workflows that matter most. I’ll help you identify the highest-risk areas, structure the right testing approach, and give your team a clearer view of whether the product is genuinely ready for users. 𝗖𝗼𝗿𝗲 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲: QA Engineering, Manual QA, Software Testing, Functional Testing, Regression Testing, Web Application Testing, Mobile App Testing, SaaS Testing, API Testing, Postman Testing, AI Testing, Chatbot Testing

I’m a Mobile App Tester and Flutter Developer with hands-on experience testing, debugging, and building Android and Flutter applications. I can help you test your mobile app on real Android devices, identify bugs, reproduce issues, and provide clear feedback with steps to reproduce, expected behavior, actual behavior, screenshots, and screen recordings when needed. Because I also work with Flutter development, I understand how mobile apps are built behind the UI. This helps me identify issues involving navigation, API responses, authentication, state management, layouts, and application flows more effectively. 𝐒𝐞𝐫𝐯𝐢𝐜𝐞𝐬: • Android mobile app testing • Functional and manual testing • Smoke and regression testing • UI/UX issue identification • Bug reproduction and detailed bug reports • Testing on real Android devices • Flutter bug fixing and debugging • Flutter UI implementation from Figma • REST API integration using Dio & Retrofit • Firebase authentication and services • BLoC/Cubit & Provider state management • Hive & SharedPreferences • Git & Bitbucket I can work with both new applications and existing codebases. Whether you need someone to test your Android app, identify bugs before release, verify fixes, or make small Flutter improvements, I can help deliver clear and reliable results.