Hire the Best QR & Barcode Scanner Freelancers
in Pakistan

👋 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 am a Manual QA Tester with 4+ years of experience testing mobile apps, web applications, and SaaS platforms. I help teams deliver stable, user-friendly, and production-ready products through structured QA, detailed bug analysis, and real-user testing. What makes me different? I don’t just find bugs — I help fix them. With hands-on experience in the MERN stack, I can quickly reproduce issues, support debugging, and assist in rapid fixes during development cycles. 💼 What I Do Manual Testing (Web & Mobile) Functional & Regression Testing Exploratory & Usability Testing Alpha & Beta Testing Cross-browser & Compatibility Testing API Testing (Postman) Test Case Design & Execution Bug Reporting with clear steps & evidence Game Testing (Performance & Stability) ⚡ Dev Support (Bonus Skill) Quick bug fixing & debugging support React & frontend issue resolution REST API testing & integration support Minor feature updates & improvements 🎯 How I Help You Reduce release risk before launch Catch critical bugs early Improve user experience (UX) Speed up testing + fixing cycle Deliver stable and reliable applications 🧩 Tools & Tech QA: Postman, Jira, Trello, ClickUp, TestRail Dev: React, Node.js, Express, MongoDB, JavaScript Platforms: Web, Android, iOS 🤝 Best Fit For Startups needing reliable QA Mobile & Web App Testing SaaS product testing & feedback Bug fixing & QA support Long-term collaboration Quality matters — and I ensure your product is tested, refined, and ready for real users.

Are you looking for a full-stack developer who delivers clean, production-ready code on time — every time? I'm Raja Sabiq, a Full Stack Web & Mobile App Developer and AI Automation Specialist based in Lahore, Pakistan, with 4+ years of professional experience building scalable web applications, cross-platform mobile apps, and intelligent automation systems. I hold a 100% Job Success Score and Rising Talent status on Upwork. ━━━━━━━━━━━━━━━━━━━━━━ WHAT I BUILD ━━━━━━━━━━━━━━━━━━━━━━ 🌐 Full Stack Web Development I build custom web applications from the ground up using the MERN stack (MongoDB, Express.js, React.js, Node.js) and Next.js. Whether you need a startup MVP, a SaaS platform, an e-commerce store, a booking system, or a business dashboard — I architect it cleanly and build it to scale. Services: Custom Web Application Development · MERN Stack Development · Next.js Web Apps · SaaS Platform Development · REST API Development · Admin Dashboard & CMS · Authentication Systems (JWT, NextAuth, OAuth) · Payment Integration (Stripe, PayFast) · Database Design (MongoDB, PostgreSQL, MySQL) 📱 Mobile App Development I develop cross-platform Android and iOS mobile apps using Flutter and React Native (Expo CLI). One codebase, two platforms, pixel-perfect UI, and full backend integration. I've built apps for e-commerce, fitness tracking, booking, social platforms, education, and fintech. Services: Flutter App Development · React Native App Development · Expo CLI Mobile Apps · Firebase Integration · Push Notifications · App Store & Play Store Submission · Mobile UI/UX Design · Real-Time Features with WebSockets & Agora 🤖 AI Agents, Chatbots & Automation I build intelligent automation systems and AI-powered tools that save businesses hours of manual work daily. From WhatsApp and Telegram AI chatbots to complex multi-step n8n workflow automations — I connect your tools, automate your processes, and integrate AI into your existing systems. Services: n8n Workflow Automation · AI Agent Development · WhatsApp Business API Bot · Telegram Bot Development · OpenAI API Integration · Claude API Integration · ChatGPT-Powered Chatbots · CRM Automation (HubSpot, Airtable, Notion) · Lead Generation Automation · Zapier & Make Alternative Workflows · Business Process Automation ━━━━━━━━━━━━━━━━━━━━━━ MY TECH STACK ━━━━━━━━━━━━━━━━━━━━━━ Frontend: React.js · Next.js · Flutter · React Native · Tailwind CSS · TypeScript · Redux Backend: Node.js · Express.js · NestJS · REST APIs · GraphQL · WebSockets Databases: MongoDB · PostgreSQL · MySQL · Firebase · Supabase · SQLite AI & Automation: n8n · OpenAI API · Claude API · LangChain · WhatsApp Business API · Telegram Bot API DevOps & Tools: Git · JWT · Vercel · Railway · AWS · Docker · Webhooks ━━━━━━━━━━━━━━━━━━━━━━ WHY CLIENTS CHOOSE ME ━━━━━━━━━━━━━━━━━━━━━━ ✔ 100% Job Success Score — results speak for themselves ✔ I think like a product owner, not just a developer ✔ Clean, documented, maintainable code your next developer can read ✔ Proactive communication — you will never wonder what's happening ✔ Fast response time — I reply within 1 hour during working hours ✔ I give honest timelines and stick to them — no surprises ━━━━━━━━━━━━━━━━━━━━━━ LET'S WORK TOGETHER ━━━━━━━━━━━━━━━━━━━━━━ Whether you're a founder building your first MVP, a business automating your operations, or an agency needing a reliable development partner — I'm ready to help. Send me a message describing your project. I'll respond within 1 hour with a clear breakdown of what's possible, how long it will take, and what it will cost.

I’m a Software QA Engineer with over 5 years of hands-on experience ensuring that web and mobile applications are bug-free, reliable, and user-friendly. I have worked with startups and established businesses across industries like E-commerce, Food Delivery, and FinTech, providing detailed QA support from planning to release. 🎯 My QA expertise includes: Testing Types: Black Box Testing, Functional Testing, Regression, Sanity, Smoke, System Testing, UI/UX Testing, and Exploratory/Ad-hoc Testing Cross-Platform Testing: Web apps, iOS & Android apps, and responsive testing across desktop, tablet, and mobile devices Documentation & Reporting: Requirement analysis, test plans, scenarios, cases, test data preparation, and detailed bug reporting with screenshots/videos Agile QA: Active participation in sprints, standups, and continuous testing cycles 🛠️ Tools I work with: Bug Tracking & Test Management: Jira, Trello, TestRail, Excel, Google Sheets, Word API Testing: Postman Communication: Slack / Microsoft Teams 🚀 Why clients work with me: Strong eye for detail and usability issues On-time delivery and thorough reporting Flexible support for both short-term tasks and long-term QA engagements I take pride in finding issues before your users do, ensuring smooth performance and a better overall experience. If you’re looking for a reliable QA partner to strengthen your product quality, let’s connect. Best regards, Hammad

Hi, I’m a QA Tester and Quality Assurance Specialist with 3+ years of hands-on experience in manual testing of websites, mobile applications, software products, and games. I help businesses deliver reliable, user-friendly products by identifying defects, improving usability, and providing clear, actionable feedback. I specialize in manual QA testing, mobile app testing, web application testing, and Google Play Console closed testing. My approach combines structured test execution, exploratory testing, attention to detail, and comprehensive bug reporting to help development teams release high-quality products with confidence. Google Play Closed Testing Partner ✓ 12+ dedicated testers with different mobile devices ✓ 14-day testing cycles ✓ 30+ mobile applications successfully tested and published ✓ Real-device testing with detailed feedback and issue reporting Quality Assurance Services: ✓ Functional Testing ✓ Mobile App Testing (Android/iOS) ✓ Website & Web Application Testing ✓ Regression Testing ✓ Smoke & Sanity Testing ✓ Exploratory Testing ✓ Usability Testing ✓ User Acceptance Testing (UAT) ✓ Cross-Browser & Compatibility Testing ✓ Black Box Testing Bug Reporting & Documentation: I provide professional QA documentation, including: ✓ Detailed bug reports with clear reproduction steps ✓ Expected vs. actual results ✓ Severity and priority classification ✓ Screenshots and supporting evidence ✓ Test cases, checklists, and test execution reports I combine technical testing expertise with strong communication skills to help companies improve product quality, reduce defects, and create better user experiences. I am committed to delivering accurate, reliable, and actionable QA insights that support successful product releases. Let’s work together to make your product more stable, user-friendly, and ready for your customers.

40+ Hours Available Per Week. I help teams and startups deliver bug-free web, mobile, and desktop applications through manual testing, automation frameworks, and performance checks. My focus is on catching critical issues early, writing clear bug reports, and ensuring every release meets your quality standards. 🌟 4+ years of SQA experience, specializing in Manual and Automation testing. 🌟 Expertise in Manual, Automation, API, Security, and Performance testing. 🌟 Available in EST hours and flexible to adjust as per client’s needs. 🌟 Deadline-driven, reliable, and accountable from start to delivery. 🌟 Strong communication, leadership, and team management skills through diverse experiences. 🌟 Industries like SaaS, Healthcare, Fintech, Ed-Tech, E-Commerce, Legal, and Automotive. I’m a Software QA Engineer in manual and automation testing, specializing in Cypress with JavaScript and Playwright. My skills in multiple programming languages and attention to detail ensure high-quality software. Manual QA Skills: • AI Model Performance Testing • AI Agent Functional & Usability Testing • Conversational AI & Chatbot Testing • Requirement Analysis • Test Case Design & Execution • Defect Reporting & Management • SEO Testing • Functional Testing • End-to-End Testing • Integration Testing • Exploratory Testing • PWA Testing (Progressive Web App Validation) • Reverse Testing – Test with Invalid/Unexpected inputs to ensure robust error handling & stability • Regression Testing • Cross-Browser Testing • Mobile App Testing (iOS & Android) • Usability Testing • UI/UX Testing • Payment Gateway Testing • System Testing & Acceptance Testing • API Testing (Postman, Swagger) • Performance Testing (Basic manual approach using tools) 🤖 AI Testing Expertise • AI Model Performance & Response Accuracy Validation • Conversational Flow, NLP Intent & Entity Testing • Voice Agent Quality Testing (ASR, TTS, Latency, Filler Word Detection) • Knowledge-Base and Prompt Flow QA • Context Retention & Session Continuity Testing • Multi-Agent Coordination and Voice Call Testing • Real-World AI App Testing (Retell, Bland, Vapi, ElevenLabs, Play.ht, Wishpond AI, Senior Care AI) 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 Domains Expertise: • eCommerce (Shopify, WooCommerce) • SaaS Applications • Fintech / Edtech • Healthcare • Mobile Applications • Insurance • Banking & Financial Services • Gaming • Point of Sale (POS) • ERP Systems • OpenAI Integration 📱 Android: Samsung Galaxy S24 Ultra, Samsung Galaxy S21 Plus, Poco X4, RealMe GT Master Edition, OnePlus 9, OnePlus 8T, Samsung A18 📱 iOS: iPhone 16 Pro Max, iPhone 14 Pro Max, iPhone 14 Plus, iPhone 13 Pro Max, iPhone 11, iPhone XR 💻 Desktop: MacBook Air, HP Pavilion X360, RealMe Book, Lenovo ThinkPad, Samsung Galaxy Book 4 & 5 With a strong commitment to delivering error-free, high-performing software, I aim to exceed quality expectations and provide products that users love. I am available for flexible timings across any time zone and dedicated to helping you bring your software to the highest standards of performance and user satisfaction. Why Choose Me? ✔️ Proven expertise in Manual QA testing ✔️ Comprehensive experience across web and mobile platforms ✔️ Skilled in test documentation, ensuring a structured and repeatable testing process ✔️ Ability to identify critical defects and edge cases ✔️ Adaptable to both Agile and Waterfall methodologies ✔️ Flexible work hours to meet your project needs ✔️ Expert in crawling websites to ensure flawless functionality and SEO perfection -------------------------------------------------------------------------------------------------------- Related Keywords: Manual Testing, API Testing, Web Testing, Mobile App Testing, Regression Testing, Cross-Browser Testing, Test Case Design, Jira, UI/UX Testing, End-to-End Testing, Functional Testing, Bug Reports, Quality Assurance, Payment Gateway Testing, iOS Testing, Android Testing, Test Plan, Usability Testing, User Testing, Software Testing, Manual QA, AI Testing, Chatbot Testing, Voice AI Testing, Mobile App QA, AI Apps Testing, Web App Testing