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40+ Hours Available Per Week Top Rated Plus full-time freelancer Manual QA with over 8+ years of experience in Software Quality Assurance, specializing in manual testing, functional and regression testing, cross-platform mobile and web application testing, API testing, workflow validation, and SaaS application QA. Extensive experience testing AI Voice & Chat Assistant platforms including Retell, Bland, Vapi, Wishpond AI, Senior Care AI, and more, along with marketplaces, booking systems, and enterprise applications. As a Top-Rated Plus freelancer on Upwork, I have delivered QA services to clients worldwide, backed by 250+ 5-star ratings ⭐, and tested 310+ mobile apps and 120+ web applications, collaborating with organizations like UNICEF and brands I test applications across all types of network conditions, including 3G, 4G, and 5G, as well as high-speed connections (1Gbps) and low-speed scenarios down to kilobits per second (kbps), ensuring optimal performance and usability under real-world conditions. Key Achievements: 🏆 Top Rated Plus freelancer with 8+ years of professional QA experience ⭐ 225+ 5-star reviews from satisfied clients 📌 390+ Upwork projects successfully completed 🤖 10+ AI Voice & Chat Assistant platforms tested (Retell, Bland, Vapi, Wishpond AI, Senior Care AI, etc.) 🚀 Tested and launched 70+ startup products successfully to the store ⏰ Worked over 28,000+ hours on Upwork. 📱 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 15 Plus, iPhone 13 Pro Max, iPhone 11, iPhone XR 💻 Desktop: MacBook Air, HP Pavilion X360, RealMe Book, Lenovo ThinkPad, Samsung Galaxy Book 4 & 5 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 • Healthcare • Mobile Applications • Insurance • Banking & Financial Services • Gaming • Point of Sale (POS) • ERP Systems • OpenAI Integration 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, iOS Testing, Android Testing, Test Plan, Usability Testing, User Testing, Software Testing, Manual QA, AI Testing, Chatbot Testing, Voice AI Testing, NLP Testing, Mobile App QA, Conversational AI, AI Model Evaluation, Reverse Testing, PWA Testing, Progressive Web App Validation, AI Apps Testing, Progressive Web Application, OpenAI, AI Apps, ChatGPT, Sora, Gemini, Generative AI, Chatbot

33,000+ hours on Upwork · 5.0 rating · 100% Job Success · 30+ contracts Some bugs only show up once real users start clicking. My job is to find them first. I am a Senior QA Engineer with 12+ years in manual and functional testing, helping startups and product teams ship reliable SaaS, web, and mobile applications that hold up under real-world use. WHAT YOU GET WORKING WITH ME ✔ Bug reports your developers can act on right away: clear steps, screenshots, and a severity that matches real impact ✔ Coverage across functional, regression, smoke, sanity, cross-browser testing and exploratory testing ✔ Someone who asks the right questions early instead of guessing, so problems surface before release day ✔ Progress updates you don't have to chase me for ✔ QA run end to end, or an extra set of eyes that slots into your existing team WHAT I TEST ✔ Web and mobile apps (iOS and Android) ✔ Testing on real Windows, macOS, Android, iPhone, and iPad devices ✔ User acceptance testing (UAT), plus cross-browser and cross-device coverage ✔ API testing with Postman and Swagger ✔ Database verification in MySQL: I write SQL queries to confirm the right data actually lands in your tables, not just what the screen shows. This is where backend bugs hide from surface-level testing. WHERE I'VE WORKED SaaS, FinTech, AI & LLM-powered applications, eCommerce, Healthcare, CRM, Learning Management Systems (LMS), Marketplace platforms, Stock Trading platforms, and Booking platforms. Comfortable across the full SDLC and STLC in Agile, Scrum, and Kanban teams. TOOLS I USE Test management: TestRail, QMetry, Xray, Zephyr Bug tracking: Jira, Bugzilla, Mantis, ClickUp, Trello, Monday, GitHub API: Postman, Swagger Database: MySQL Design review: Figma, Miro WHY WORK WITH ME The 100% Job Success and clean 5.0 across 30+ contracts come from the basics done consistently: careful coverage, clear communication, and meeting the deadline I committed to. If you're looking for a QA engineer who communicates clearly, finds critical issues early, and helps you release with confidence, I would be happy to discuss your project.

“Yogesh works with complete transparency and is a dogged problem solver. I wish everyone I hired had his work ethic. He is simply one of the best people I’ve worked with in ANY industry.” "We have worked with yogesh in a django project and we are very very satisfied with the results, the communications was been great and the quality level is very high here." Marco Poziello , CEO, Marco "Very responsive and a great programmer. Will use again." Tamara Reid, President, press8 Telecom. **** why do you hire me **** - Experience with test-driven development - Active open source contributor. - Master degree in Computer. - 8 years of experience. - Expert in Django, Ruby on rails, Lambda. - Master in Python, Ruby - excellent knowledge of MongoDB, Mysql, Postgres - Strong hands with Angular/Ionic platform. --- Domain expertise (industries specific) - - - * IOT * Face recognition. * Deep Learning. * Pet grooming website and mobile application. * property inspection management. * CRM * Plumbing and cleaning mobile app. * car washing automation mobile app. * classified websites and Mobile app. * Ecommerce portal. Looking forward to hearing from you!! Your Success come through My Experience. Yogesh D

Experienced Full Stack Developer | Laravel & Vue.js Specialist | Automation Testing Pro Hello! I'm a seasoned full stack web developer with 7 years of hands-on experience in PHP (Laravel) and Vue.js. I thrive on building dynamic, high-performing web applications and ensuring their flawless functionality through robust automation testing with PHPUnit and Dusk. Why Work With Me? Expertise in Laravel & Vue.js: I specialize in creating scalable and efficient web applications using Laravel for the back-end and Vue.js for the front-end, delivering seamless user experiences. Automation Testing Guru: With a strong focus on quality, I leverage PHPUnit and Dusk to automate testing, ensuring your applications are reliable and error-free. Problem-Solving Skills: I excel at identifying and solving complex issues, providing innovative solutions that drive success. Tech Enthusiast: My passion for technology keeps me ahead of the curve, always eager to learn and integrate new tools and frameworks to enhance project outcomes. Let's connect and turn your vision into reality with cutting-edge web solutions and unmatched technical expertise!

I help companies launch reliable, bug-free software by finding issues before users do. Over the past 6+ years, I’ve worked as a QA Engineer across SaaS platforms, eCommerce products, travel platforms, fintech/insurance solutions, and web/mobile applications, helping teams improve product quality, user experience, and release confidence. I’ve worked on everything from new product launches to existing platforms that needed deeper testing, stability improvements, and better QA processes. Most clients usually come to me in one of two situations: You’re building a new product and need someone to make sure it’s production-ready: I help validate requirements, test user journeys, identify edge cases, and ensure every feature works smoothly before launch. You already have an app/platform but users are reporting bugs, crashes, or inconsistent experiences: I quickly understand existing workflows, test critical areas, identify root issues, and provide clear bug reports developers can act on. I’m comfortable handling both. Core QA Expertise and Tools: - Manual Testing for Web, Desktop, and Mobile Applications - iOS, Android, and Windows Application Testing - API Testing using Postman and Swagger - Performance & Load Testing using JMeter - Smoke, Functional, Black-box, Regression, UAT, Cross-browser, Cross-platform, and Load Testing - Bug Tracking & Reporting using Jira, Mantis, Bugzilla, and Trello Devices: - PC/ Desktop - iOS Devices: iPhone 15, iPhone 14, iPhone 13, iPhone 12, iPhone 11, iPhone XR, iPhone 6 Plus - Android Devices: Android 14, Android 13, Android 12, Android 11, Android 10 My approach to QA: I don’t just check if a button works, I test how real users interact with the product. I focus on: - Finding hidden edge cases before customers do - Understanding business logic behind features - Prioritizing critical issues that impact revenue and user experience - Providing clear, developer-friendly bug reports - Helping teams release with confidence What you can expect working with me: - Clear communication and regular updates - Detailed bug reports with steps, screenshots, and expected vs actual results - Strong understanding of business requirements - Reliable testing support during development and release cycles - A QA partner who thinks beyond checklists and focuses on product success If you’re looking for a QA Engineer who can help you build confidence in your product, improve quality, and catch issues before your users do, let’s connect.

Professional Software Architect with a passion for building intelligent, scalable systems. Combining a deep foundation in Domain-Driven Design (DDD) and Agile practices with state-of-the-art expertise in Agentic AI, I bridge the gap between robust enterprise architecture and modern Large Language Model (LLM) capabilities. With software development experience spanning since August 2009, my background is rooted in full-stack C# .NET engineering, high-performance database optimization, and mastering the full System Development Life Cycle (SDLC). Today, I leverage this extensive architectural experience to design and deploy Agentic RAG (Retrieval-Augmented Generation) pipelines, build autonomous workflows using Python and LangGraph, and deploy custom AI chatbots. I have a proven ability to understand and transform complex business requirements into high-performing, maintainable software. Whether it's optimizing legacy systems, architecting Real-Time Agent Assist (RTAA) solutions natively integrated with telephony infrastructure (Twilio, VICIdial), or automating complex enterprise workflows, I ensure applications are delivered on time, to specification, and engineered for scale. A highly motivated individual who is always learning, able to work to tight deadlines, and communicates effectively with technical peers and business stakeholders alike. I encourage knowledge sharing and am always open to exploring innovative ways of working to drive business value. Core Expertise & Skills: AI & Machine Learning: Agentic AI Workflows, LangGraph, LangChain, RAG Systems, LLM Integration (OpenAI, Claude, Gemini), GitHub Copilot, Custom Chatbot Architecture Core Programming Languages: Python, C#, SQL, JavaScript, VB.NET, JSON Telephony & Automation: Twilio, VICIdial, VoIP Systems, IVR Workflows Technologies & Frameworks: FastAPI, Streamlit, Pydantic, .NET Framework (2.0-4.5), ASP.NET MVC, Web API, WCF, Entity Framework, Task Parallel Library, Microsoft Azure Databases & Vector Search: PostgreSQL (pgvector), MS SQL Server, Oracle, MySQL, Lucene.net Development Methodologies: Extreme Programming, Test-Driven Development (TDD), Agile Development, Scrum, Domain-Driven Design (DDD) Source Controls: SVN, Visual Source Safe, Team Foundation Server (TFS), Git