Hire the Best Behavior Driven Development (BDD) Specialists
in Pakistan

Hi Availability 40+ hour/week I help SaaS, AI, web, mobile, and eCommerce teams release stable, user-ready products through Software QA, Manual Testing, Test Automation, API Testing, Mobile App Testing, Web App Testing, Regression Testing, Functional Testing, and clear Bug Reporting. I work as a Software QA Engineer / QA Automation Engineer who can test your product from both the user side and the technical side. My goal is simple: give your team clear test coverage, clean reports, real evidence, and practical release feedback before your customers find problems. My core QA services include: ✅ Manual Testing • Web App Testing • Mobile App Testing • Functional Testing • Regression Testing • Smoke Testing • Sanity Testing • Exploratory Testing • Usability Testing • User Acceptance Testing • Cross-Browser Testing • Responsive Testing • Test Case Design • Test Plan Creation • QA Documentation ✅ QA Automation • Playwright Testing • Cypress Testing • Selenium Automation • Appium Testing • End-to-End Testing • Regression Automation • UI Automation • CI/CD Testing • GitHub Actions test support • Stable automation for repeated test journeys ✅ API & Backend Validation • API Testing with Postman • REST API Testing • Swagger and Open API validation • Authentication testing • Request and response validation • Negative test cases • Data validation • Frontend and backend result comparison ✅ Mobile QA Testing • Android App Testing • iOS App Testing • Real-device testing • Emulator and simulator testing • Onboarding, login, payment, chat, wallet, push notification, and subscription testing • Mobile UI, responsiveness, crash, and performance checks ✅ AI & Modern QA Testing • AI Testing • AI SaaS Testing • LLM Testing • Chatbot Testing • Prompt-based testing • AI output validation • Edge-case testing for AI-generated responses • Accuracy, consistency, and usability checks for AI products Tools I work with: Playwright, Cypress, Selenium, Appium, Postman, Swagger, Jira, Trello, ClickUp, TestRail, Qase, Zephyr, BrowserStack, LambdaTest, GitHub, GitHub Actions, Chrome DevTools, Android Studio, Xcode, and CI/CD pipelines. What you will get: • Clear test cases based on your requirements • Structured bug reports with steps, screenshots, videos, logs, severity, priority, expected result, and actual result • Fast QA updates during testing • Practical feedback on usability, layout, responsiveness, and product behavior • Regression testing before release • API and UI validation together • Cross-browser and cross-device coverage • Automation support for repeated test journeys • Release-focused QA support for founders, developers, product managers, and agencies I focus on the areas that matter most in real products: login, signup, dashboard, checkout, payments, subscriptions, admin panels, role permissions, forms, search, filters, notifications, API responses, mobile screens, browser differences, and release blockers. I have experience testing SaaS platforms, AI products, mobile apps, eCommerce stores, dashboards, CRM systems, healthcare platforms, FinTech products, marketplaces, and business web applications. If you need a QA Engineer who can handle Manual Testing, QA Automation, API Testing, Web App Testing, Mobile App Testing, Regression Testing, AI Testing, and professional Bug Reporting, I can help you test your product properly before launch and support your team after release. SKILLS: Software Testing | QA Testing | Quality Assurance | Software QA | Manual Testing | Functional Testing | Regression Testing | Web App Testing | Mobile App Testing | Android App Testing | iOS App Testing | API Testing | Postman API Testing | End-to-End Testing | Test Case Design | Bug Reporting | Bug Tracking | Usability Testing | Test Automation | Automated Testing | Playwright Testing | Cypress Testing | Selenium Automation | Appium Testing | AI Testing | AI Test Automation | Generative AI Testing | LLM Testing | Performance Testing | Security Testing

🥇10% Top Upwork Talent. 🏆 Recognized as a Top 3% Quality Voice on LinkedIn 📈 100% Job Success Scorer 💎 5+ years of Experience as an SQA Engineer and Automation Testing 🏆 Worked on 70+ Projects on Upwork and LinkedIn ⭐ Excelling in delivering top-notch quality products 🌟 100% Client Satisfaction ✅ 100% flexible, can work in any time zone ⭐⭐ “I am an individual QA Freelancer...”⭐⭐ 🚀 Ensuring software quality, one test at a time! 🚀 I specialize in ensuring software quality by combining my expertise in automation, manual testing, API validation, performance testing, and CI/CD integration. With hands-on experience in Selenium, Playwright, Cypress, Appium, and Postman, I help businesses streamline testing processes, reduce time-to-market, and improve product reliability. ✅ What I Offer 🛠️ Automation & Manual Testing Expertise: ✔ Automation Testing – Cypress, Selenium, Appium, Playwright ✔ Functional & Regression Testing – Validate new & existing functionalities ✔ API & Web Services Testing – Postman, RestAssured, SoapUI ✔ Performance & Load Testing – JMeter, Gatling ✔ Cross-Browser & Compatibility Testing – BrowserStack, GhostInspector ✔ GUI & Usability Testing – Ensuring seamless user experience ✔ Security Testing – Identify vulnerabilities with Burp Suite ✔ Accessibility Testing – WCAG compliance for web & mobile apps ✔ Database Testing – Ensuring data accuracy & performance ✔ Test Case & Test Plan Creation – Xray-Jira, TestRail, Test Link 📌 API, Performance & Security Testing: 🔹 Postman, Cypress, RestAssured, JMeter, Burp Suite 📌 Screen Recording & Screenshot Capture: 🔹 Loom, TechSmith Recorder, ZD Screen Recorder, LightShot, Teams, Zoom Methodology: My approach to testing is systematic and thorough. It begins with a comprehensive analysis of project goals and user stories, followed by a meticulous review of design elements. I then formulate robust test cases and scripts, executing tests rigorously throughout the development sprint to identify and report bugs promptly. ✅ Soft Skills & Communication ✔ Strong English Communication – Clear & professional reporting ✔ Team Collaboration – Work effectively across teams & stakeholders ✔ Project Management – Ensure smooth QA cycles & timely deliveries ✔ Attention to Detail – Identify critical bugs & performance bottlenecks 📱 Devices: 💻 Laptops: MacBook M2 (2023), MacBook i7 (2019), HP Victus (2021), Dell Latitude 3468 📱 Mobile Devices: iPhone XR, Realme 6 Pro, Samsung A53 5G, Samsung A24, Samsung A14. Here’s what I bring to the table: ✔ 5+ Years of SQA Experience – Manual & automation expertise across industries ✔ Optimized Automation Strategies – Fast & scalable test execution ✔ Comprehensive Coverage – UI, API, security, and performance testing ✔ Quality-Focused & Detail-Oriented – I ensure software stability before deployment Let's Connect! I’m truly enthusiastic about the opportunity to learn more about your project and explore how we can collaborate. Feel free to reach out. Let’s take your project to the next level!

Do you need a Software QA Engineer who can thoroughly test your web, mobile, and API products before release, and then provide clear bug reports, test evidence, and release-ready results your team can act on? HELLO! 👋 40+ Hours Available Per Week 💎 Senior Software QA Engineer | Top Rated | 6+ Years of Experience | 30+ QA Projects 🥇 Web, Mobile, API, Manual, and Automated Testing ⚡ Playwright, Cypress, Selenium, Appium, Postman, JMeter, k6, and CI/CD Testing 📱 Real-device testing for iOS, Android, tablets, Windows, and macOS 🧠 Clear test cases, usability feedback, annotated screenshots, recordings, and actionable reporting I help startups, SaaS companies, e-commerce brands, AI products, and mobile applications release stable, user-friendly software through Software QA, Manual Testing, Functional Testing, Mobile App Testing, Web Testing, Usability Testing, API Testing, Automated Testing, Bug Reports, Test Case Design, and Test Results & Analysis. ================= 🔑 How I Help You ================= • Software QA for web, mobile, desktop, SaaS, and API-based products • Manual Testing and Functional Testing • Web Testing across Chrome, Safari, Firefox, Edge, Windows, and macOS • Mobile App Testing for iOS and Android devices • End-to-End Testing for key user journeys • Exploratory Testing for real-world user behavior and edge cases • Regression Testing before releases • Smoke Testing for quick build validation • API Testing using Postman, Swagger, REST Assured, and cURL • Test Case Design, test plans, checklists, and requirement coverage • Bug Reports with clear reproduction steps, screenshots, videos, console logs, and expected versus actual results • Usability Testing and UI/UX Testing • Cross-Browser and Cross-Device Testing • Payment Gateway Testing • Integration Testing • Performance Testing and Load Testing using JMeter and k6 • Accessibility checks aligned with WCAG 2.2 AA • QA Automation using Playwright, Cypress, Selenium WebDriver, and Appium • CI/CD test integration with GitHub Actions, GitLab CI, Jenkins, and Azure DevOps • AI application, chatbot, and conversational user-experience testing ======================= 🛠 Tool & Platform Expertise ======================= • Automation: Playwright, Cypress, Selenium WebDriver, Appium • Languages: TypeScript, JavaScript, Python, Java, SQL • API Testing: Postman, Swagger, REST Assured, Bruno, cURL • Performance Testing: JMeter, k6 • Bug Tracking & Test Management: Jira, Xray, TestRail, Qase, Zephyr, ClickUp, Linear, Trello, Azure DevOps • CI/CD: GitHub Actions, GitLab CI, Jenkins, Azure DevOps, Bitbucket Pipelines • Cross-Browser Platforms: BrowserStack, LambdaTest, real physical devices • Documentation: Test Plans, Test Cases, Checklists, Test Results, Release Reports, Bug Reports ==================== 🌍 Domain Experience ==================== ✔ SaaS Platforms ✔ AI Applications and Chatbots ✔ E-commerce and Shopify Stores ✔ FinTech and Payment Systems ✔ Healthcare and Patient Platforms ✔ CRM and ERP Systems ✔ EdTech Products ✔ Travel and Booking Platforms ✔ Web3 and Blockchain Products ✔ Mobile Applications ✔ Marketplace Platforms ✔ Gaming and Desktop Applications ================================================ 📱 Multi-Device QA Lab — Real Device Testing ================================================ I test products on real devices and browsers, not only emulators. 💻 Windows and macOS • Chrome, Edge, Firefox, Safari • Multiple screen resolutions from 1366×768 to 2880×1880 📱 iOS Testing • iPhone XR through iPhone 16 Pro Max • Safari, Chrome, and Firefox testing • Responsive layouts, onboarding, payments, notifications, and app behavior 📱 Android Testing • Samsung, Google Pixel, Realme, and OPPO devices • Android 11 through Android 14 • Different screen sizes, browsers, and performance levels 📟 Tablet Testing • iPad testing for responsive layouts, usability, and tablet-specific behavior ===================================== 📞 Let’s Discuss Your QA Requirements ===================================== Whether you need a complete QA process, a manual tester for an upcoming release, mobile app testing, API validation, automation coverage, or detailed usability feedback, I will provide structured testing and clear reporting your development team can use immediately. 💎 KEY SKILLS: Software QA, Manual Testing, Functional Testing, Mobile App Testing, Web Testing, Usability Testing, Software Testing, Bug Reports, Desktop Application Testing, Automated Testing, Android Testing, API Testing, Test Case Design, Test Results & Analysis, Annotated Screenshots, QA Automation, Regression Testing, End-to-End Testing, Cross-Browser Testing, iOS Testing, Performance Testing, Load Testing, Playwright, Cypress, Selenium, Appium, Postman, Jira, TestRail, CI/CD TestingSoftware QA, Manual Testing, Functional Testing, Mobile App Testing, Web Testing, Usability Testing, Software Testing, Bug Reports, Desktop Application Testing.

🚀 Hi! I’m Hammad Khan. I am a Senior Full-Stack Developer with over 8 years of experience delivering scalable, high-performance web applications. I specialize in crafting efficient backend systems, intuitive frontend interfaces, and end-to-end solutions tailored to business needs. My work spans industries like e-commerce, SaaS, ERP systems, and enterprise-level applications. Key Skills & Expertise 🔹Frontend Development Expertise in building modern, responsive, and dynamic user interfaces with: - React, Redux, Vue.js, Next.js, and TypeScript - JavaScript (ES6+), HTML5, and CSS3 🔹 Backend Development Creating scalable server-side logic using: - Node.js (Express.js), Spring Boot, and Laravel - RESTful and GraphQL APIs for seamless integrations 🔹 Database Management Proficiency in managing and optimizing relational and NoSQL databases: - MongoDB, MySQL, PostgreSQL, Firebase, and Oracle 🔹 Cloud & DevOps Experience deploying and managing cloud applications with: - AWS, Azure, Google Cloud, and IBM Cloud - CI/CD pipelines, Docker, and Kubernetes 🔹 Payment Gateway Integration Hands-on experience with Stripe, PayPal, and other gateways for secure transactions. Industry Expertise 🔸 E-commerce Platforms 🔸 SaaS Solutions 🔸 ERP Systems 🔸 Financial Applications 🔸 Content Management Systems (CMS) 🔸 Booking and Scheduling Systems Why Work With Me? 🌟 Project Ownership: I ensure every project is completed with high-quality, clean, and maintainable code. 🌟 Flexible Collaboration: Open communication and adaptability to your time zone and requirements. 🌟 Problem-Solving Approach: Specialized in troubleshooting abandoned projects and cloud migrations. 🌟 Client-Centric Practices: Your vision and goals are my top priority. Full-Stack Technologies Frontend React.js, Next.js, Redux, Vue.js, JavaScript, HTML5, CSS3 Backend Node.js, Express.js, Spring Boot, Laravel, RESTful APIs Databases MongoDB, MySQL, PostgreSQL, Firebase DevOps & Cloud AWS, Azure, Google Cloud, Docker, Kubernetes Feel free to reach out if you’re ready to turn your ideas into reality. Let’s build something amazing together! 🔥 Keywords: MERN Stack Developer, React.js Developer, Node.js Developer, Full-Stack Developer, Backend Engineer, Frontend Developer, API Developer, SaaS Developer, E-commerce Developer, ERP Developer, MongoDB Expert, MySQL Developer, PostgreSQL Developer, Cloud Developer, AWS Expert, Azure Developer, Google Cloud Developer, Docker Specialist, CI/CD Expert, Kubernetes Developer, Payment Gateway Integration, RESTful API Developer, GraphQL Developer, Vue.js Developer, Laravel Developer, Spring Boot Developer, JavaScript Developer, TypeScript Developer, Scalable Web Applications, Web Developer, Serverless API Developer, Abandoned Projects Specialist, Cloud Migration Specialist, React Native Developer, Firebase Specialist, Oracle Database Developer, Next.js Developer, Software Engineer, Enterprise Web Developer, CMS Developer, Booking System Developer, Microservices Architect, Stripe Payment Developer, PayPal Integration Expert, Serverless Architect, SPA Developer, Cross-Platform Developer, Frontend Performance Optimization, Web Application Security Specialist, DevOps Engineer, Software Architect, Agile Developer, Technical Project Manager, Modular Code Developer, Dynamic Web Application Developer, Third-Party API Integration Specialist, GraphQL API Developer, Digital Transformation Expert, Responsive Web Design Expert, User-Centered Interface Designer, Web Analytics Integration Expert, Progressive Web Application (PWA) Developer, High-Traffic Website Optimization Specialist, Mobile-First Design Expert, Custom Plugin Developer, Middleware Integration Specialist, IoT App Developer, AI-Powered Web Solutions Expert, Machine Learning Integration Specialist, Business Intelligence Developer, Data Visualization Expert, Real-Time Data Processing Specialist, Chatbot Developer, Natural Language Processing (NLP) Expert, Augmented Reality (AR) Integration Developer, Virtual Reality (VR) App Developer, API Gateway Expert, Lambda Function Developer, CI/CD Pipeline Automation Expert, Custom Dashboard Developer, Multi-Tenant Architecture Developer, Workflow Automation Specialist, Performance Monitoring Specialist, Log Management Specialist, Scalability Solutions Architect, Containerization Specialist, Cloud Security Expert, Big Data Processing Developer, Blockchain Application Developer, Cryptocurrency Integration Specialist, Event-Driven Architecture Developer, API Documentation Specialist, Automation Testing Specialist, Test-Driven Development (TDD) Expert, Behavior-Driven Development (BDD) Specialist, Cross-Browser Compatibility Expert, Code Review Specialist, Code Optimization Specialist, Website Accessibility Expert (WCAG), SEO Optimization Specialist, Performance Tuning Specialist, WebRTC Developer, Video Streaming App Developer, SaaS Optimization Specialist, UX/UI Optimization

Most QA engineers can test a web app. Very few know how to test an AI product, where output changes every run, "correct" is fuzzy, and hallucinations slip past normal test cases. That's where I work. I worked as a QA lead on two AI-powered SaaS platforms. On a legal case management product, I test the LLM assistant directly: hallucination detection, grounding verification, and fact-extraction accuracy against real case files. On an AI SEO platform, I validate content generation and automated insights, judging output quality rather than just pass/fail. Before that: 6+ years as Senior Test Engineer at Foxtons (UK's largest property agency), doing deep SQL-driven QA on enterprise lettings and payment systems where a missed bug means real money moves the wrong way. What makes me different: I don't just report bugs, I fix them. I ship small-to-medium front-end and back-end fixes myself, with PRs reviewed and merged by the CEO and VP of Engineering at my current clients. Your devs stay focused on features while the bug backlog still shrinks. What I deliver: AI/LLM feature testing: hallucination and grounding checks, prompt-behavior validation, RAG/document-intelligence output QA E2E automation in Cypress, Playwright, and Selenium (Page Object Model), wired into CI/CD (GitHub Actions, Jenkins) so tests run on every PR API and backend testing (Postman, REST) backed by real SQL. I verify the database, not just the screen Mobile QA across iOS and Android, including an app rollout across 9 countries Bug fixes shipped as merged PRs, not just tickets I've also built and shipped my own production SaaS end to end (Next.js, TypeScript, Redis, Claude API), which is why my automation code reads like developer code, not tester scripts. Top Rated, 100% Job Success, 2,100+ hours on Upwork. Clean, maintainable automation with no throwaway scripts, and every engagement ends with documentation your team can actually use. If you're shipping fast and worried something will break in front of users, send me a message. I'll spend 15 minutes scoping your testing pipeline free before we agree on anything

Senior Full-Stack Developer | React, Next.js, Node.js, TypeScript, MongoDB, Python, PostgreSQL, AWS, Docker, Kubernetes | SaaS, EdTech, HealthTech, Real-Time Applications | Open to Remote Roles. Maker of Sheets Feed (apps.shopify.com/sheets-feed) a Shopify Public App for automation with Google Drive. Profile: A Senior Full-Stack Developer with 12+ years of experience in building scalable, secure applications using React, Next.js, Node.js, TypeScript, PostgreSQL, and AWS. Notable achievements include architecting a real-time analytics dashboard reducing latency to under a second, rebuilding a multi-tenant CMS with 70% infrastructure savings, and modernizing a logistics system, cutting sync times by 95%. I specialize in designing production-ready systems, real-time apps, and developer tools. Skills: Backend Development o Languages: Javascript, TypeScript, Python o Frameworks: Node.js, Express.js, Django, Flask, FastAPI, RemixJS, NextJS, AngularJS, Vue.js o API Development: RESTful,GraphQL, WebSockets o Microservices: Nodejs Microservices, Severless Architecture o Authentication: JWT, OAuth, Passport.js o Security: HTTPS, SSL/TLS, OAuth2, Role-Based Access Control, (RBAC), AWS Cognito o Real-time Systems: Kafka, WebSockets, Redis, Pub/Sub Frontend Development o Languages: JavaScript (ES6+), TypeScript, HTML5, CSS3 o Frameworks/Libraries: React.js, Next.js, Redux, Redux Toolkit, React Query o UI/UX: Responsive Design, Component-Based Architecture, Material-UI, Tailwind CSS o State Management: Redux, Context API, React Hooks o Testing: Jest, React Testing Library, Cypress, Mocha, Chai o WebSockets & Real-Time Applications: WebSockets, WebRTC, Server-Side Rendering (SSR) Databases & Data Management o Relational Databases: PostgreSQL, MySQL, TimescaleDB o NoSQL Databases: MongoDB, Redis Cloud & DevOps o Cloud Platforms: AWS (Lambda, ECS/EKS, RDS, S3, DynamoDB, CloudFront, Amplify), Google Cloud Platform (GCP) o Containerization: Docker, Kubernetes o CI/CD: GitHub Actions, Jenkins, CircleCI, Travis CI o Infrastructure as Code (IaC): Terraform o Monitoring & Logging: Prometheus, Grafana, Sentry, ELK Stack Testing & Quality Assurance o Jest, Mocha, Cypress, Test-Driven Development (TDD), Behavior-Driven Development (BDD), API Testing (Postman, Supertest), UI Testing (Cypress, Selenium)