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Are you looking for a reliable Google Play Closed Testing Specialist? Hi! I'm Md. Najmul Hassain, a Top Rated App Developer and Google Play Closed Testing Specialist. I help developers and businesses prepare their Android apps for release through Google Play Closed Testing, professional software testing, and live app feedback. With a trusted team of 12+ real testers using real Android devices, I provide structured testing, detailed live app feedback, bug reporting, and usability evaluation to help improve your app's quality and user experience before launch. I focus on clear communication, on-time delivery, and professional testing throughout every project. 🚀 My Google Play Testing Services: ✅ Google Play Closed Testing -12+ Real Testers -14-Day Closed Testing Support - Real Android Device Testing - Structured Testing Process. ✅ Professional Software Testing - Manual Testing - Usability Testing - Regression Testing. ✅ Live App Testing & Detailed Feedback - Detailed App Feedback - Bug Reporting & Analysis - UI/UX Improvement Suggestions - Performance & Stability Feedback. ✅ Google Play Console Support - Production Access Guidance - Google Play Policy Guidance - Release Preparation Support. ✅ Why Work With Me? - Top Rated Freelancer - 100% Job Success Score - Clear Professional Communication - On-Time Delivery - Reliable Testing Support. Let's work together! If you're looking for a reliable Google Play Closed Testing and Software Testing specialist, feel free to send me a message. I'd be happy to discuss your project and help you prepare your app for release।

Are you looking for a Google Play Console expert to help you pass the mandatory closed testing phase? I specialize in providing the 12 testers and 14 days of continuous engagement required for new developer accounts to gain Production Access. With a 100% success rate, I help developers move from closed beta to a live Play Store release. I don't use bots or emulators; I provide authentic manual app testing using a fleet of 12+ real Android devices (Samsung, Pixel, Xiaomi, etc.). This ensures your Google Play production access application is approved without flags or policy rejections. 🚀 My Google Play Testing Services: ✅ Closed Testing Management: Complete handling of the 14-day testing period to satisfy Google Play’s engagement requirements. ✅ Production Access Strategy: Expert guidance on the Google Play Console application process to ensure a 100% approval rate. ✅ Real-Device QA Testing: Professional mobile app testing on 12+ physical devices to provide authentic usage data and performance metrics. ✅ Bug Reporting & Analysis: Detailed QA audits to identify UI/UX glitches, crashes, and functional bugs before your public launch. ✅ Policy Compliance: Pre-submission reviews to ensure your app follows the latest Google Play Developer Program Policies. 🛠️ Devices & Tools: ✅ Physical Devices: 12+ Real Android phones (Android 10 to Android 14). ✅ Platforms: Google Play Console, Firebase App Distribution, Jira. ✅ Testing Types: Manual Testing, Usability Testing, Regression Testing, and Beta Testing. I am committed to clear communication, high-quality app QA, and fast turnarounds. Let’s get your app through closed testing and ready for production! Contact me today to successfully launch your app on the Google Play Store!

Upwork Stats: 10,000+ hours booked, generating nearly $200,000 in revenue, with a 100% completion ratio and many satisfied customers worldwide. Transform your business with robust, scalable solutions across .NET, Azure, MERN, MEAN, and mobile platforms. Is your team seeking to: - Modernize legacy apps and migrate to cloud-native architectures? - Rapidly launch secure React, Angular, or cross-platform mobile projects? - Integrate complex APIs and automate business workflows? Why clients hire me: 1. Built 15+ enterprise applications for finance, healthcare, real estate, and SaaS using React, Angular, .NET Core, Azure, and Express. 2. Migrated legacy Microsoft stack projects to cutting-edge MEAN/MERN platforms—improving speed and reliability for 20+ clients. 3. Led multi-disciplinary teams to deliver cloud-native, mobile-first solutions with full CI/CD automation and Kubernetes deployment. 4. Integrated 30+ REST/SOAP APIs, securing sensitive data and meeting HIPAA/GDPR standards. 5. Delivered award-winning mobile apps across Android/iOS using React Native, Flutter, and .NET MAUI. What I deliver: - End-to-end app development—from architecture planning, UI/UX, coding, and cloud deployment to post-launch support. - Technical audits, legacy refactoring, and scalable microservices using latest industry best practices. - Seamless API integrations, automation, and security for critical business processes. Clients say I “bridge the gap between business goals and technology” - delivering solutions that grow with you. 📞 Ready to launch your next project? Message now to schedule a free strategy call. Let’s build something amazing together!

⭐ Overview: Building digital products isn’t just about development—it’s about delivering solutions that drive real business growth. I help startups and enterprises launch MVPs, scale existing applications, and rescue stalled projects with secure, high-performance mobile and web solutions. With 8+ years of experience and 160+ completed projects, I specialize in Flutter, React Native, MERN Stack, and Laravel PHP, delivering end-to-end applications that are scalable, user-friendly, and future-proof. ⭐How I Work: I combine technical expertise with a business-driven mindset to ensure every product delivers measurable results. • Product-First Approach: Technology aligned with your business goals • End-to-End Delivery: Mobile apps, web platforms, backend, APIs & cloud • Speed & Reliability: Freelancer attention with agency-level execution ⭐Core Expertise: • Mobile Development: Flutter & React Native (iOS & Android) • Full-Stack Web Development: MERN Stack & Laravel PHP • Cloud & Infrastructure: AWS & Google Cloud • UI/UX Implementation & App Store Deployment ⭐ Why Clients Choose Me: • 160+ successful apps delivered across industries • Long-term maintenance and feature upgrades • Scalable, clean architecture built for growth ⭐ Call to Action: Let’s create exceptional digital products together. Invite me to your job and let’s start building.

Expert Vetted (Top 1% on UpWork) Senior Mobile App Developer with $100k+ earned on UpWork and over 100 successful projects I do end-to-end development on mobile apps, web apps & AI tools 𝗞𝗘𝗬 𝗙𝗔𝗖𝗧𝗦 🚀 Built a telehealth chat and video calling app MVP in 4 weeks and scaled the calling architecture for a UK client that helped them scale past 100,000 paying customers 🚀 Rebuilt a mobile app and helped scale it to over with over 2 million users, sending over a million notifications per day 🚀 Rebuilt upskilling mobile app in the Netherlands, cutting development costs by 67% and securing $85M+ in funding I have built and scaled projects for companies up to millions of users I can help you to ✔️ Improve user engagement and conversion ✔️ Scale your architecture for millions of users ✔️ Develop and implement your app end-to-end ✔️ Reduce costs and simplify your technology concerns The projects I worked on raised a total of over $100M in funding. Other projects have generated millions in yearly revenue for the businesses I helped 𝗪𝗛𝗬 𝗣𝗔𝗥𝗧𝗡𝗘𝗥 𝗪𝗜𝗧𝗛 𝗠𝗘? ✔️ With my process I deliver on time and with high quality ✔️ Frequent communication ✔️ Proven development process ensuring a 99% project success rate ✔️ I work with you on the product design to make sure you get paying users Click on the green message button at the top of my profile and message me. We'll book a free call to discuss your project 𝗦𝗘𝗥𝗩𝗜𝗖𝗘𝗦 𝗜 𝗣𝗥𝗢𝗩𝗜𝗗𝗘: 📱Mobile Application Development (Cross platform and Native apps) 💻Full Stack Web Development (Front-end and Back-end) 🤖AI Integration (ChatGPT, GPT-4) 𝗔𝗠𝗔𝗭𝗜𝗡𝗚 𝗖𝗟𝗜𝗘𝗡𝗧 𝗧𝗘𝗦𝗧𝗜𝗠𝗢𝗡𝗜𝗔𝗟𝗦: ★★★★★ "The first time I met Boris, I knew that he would end up being one of the best engineers I’ve ever worked with. His technical expertise, drive to understand the business, and adaptability enabled him and his team to deliver high value for us. In a crowded market, you need an edge, and that's precisely what Boris' team gave us. Their custom development services have empowered us to better serve our clients and grow our business. If you're looking to accelerate your aspirations, I can't recommend Boris and his team highly enough." ★★★★★ "I have had the pleasure of collaborating with Boris for a span of 3-4 years, and I am delighted to provide nothing but the highest commendations. Throughout our partnership, Boris has consistently demonstrated an exceptional degree of responsibility, expertise, and unwavering assistance across all our endeavors. Without hesitation, I wholeheartedly endorse him to fulfill your requirements as an app developer and for comprehensive technology support. His professionalism and friendly approach make him an ideal choice."

Businesses often outgrow spreadsheets, disconnected tools and off-the-shelf software that no longer fits how they operate. I design and build custom, database-driven business systems that bring processes, users and information together in one reliable platform. I work as a long-term technical partner for organizations that need complete, end-to-end solutions, including: • Custom CRM and ERP systems • Customer, member, employee and vendor portals • SaaS and multi-tenant web platforms • Internal operations and workflow systems • Database design and administration tools • Reporting dashboards and management visibility • API integrations and data synchronization • Legacy-system modernization and data migration As a Top Rated Plus Upwork professional with $300K+ earned and 6,900+ hours, I combine full-stack development, systems analysis and technical project leadership. I can take a project from initial discovery and process mapping through architecture, database design, development, testing, deployment and ongoing improvement. My experience includes building and supporting membership systems, admissions and learning platforms, expense-management workflows, operational dashboards, administrative portals, marketplace platforms and API-connected business applications. My approach is practical and structured: 1. Understand the business process and existing pain points 2. Define users, roles, workflows, data and reporting requirements 3. Design a maintainable system and database architecture 4. Deliver the solution incrementally with regular demonstrations 5. Manage testing, deployment, documentation and user adoption 6. Continue supporting and improving the platform as the business grows Core technologies include C#/.NET, ASP.NET, PHP, JavaScript, SQL Server, MySQL, REST APIs, HTML/CSS, Power Platform and modern web-development frameworks. Automation and AI can be incorporated where they deliver genuine business value, but the foundation is always a secure, maintainable and usable business system. I am best suited to clients looking for more than a short coding assignment—especially organizations seeking a dependable technical partner who can understand their operations, own delivery and support the system over the long term. Let's discuss your project and get the ball rolling, Zain H.