Gurpreet S.

Product QA Engineer: Senior QA Engineer for AI & SaaS Products ✓ I help SaaS startups and AI companies ship stable, reliable products by finding critical bugs before your users do. ✓ I help founders launch confidently by uncovering critical bugs, validating user flows, testing APIs, and ensuring every release is production-ready. I test: ✓ Features ✓ Releases ✓ User Journeys ✓ AI Workflows ✓ APIs ✓ Integrations ✓ Payments ✓ Notifications ✓ Performance ✓ Edge Cases Top Rated QA Engineer, Software Tester, Best Software Tester Senior QA Engineer | AI, SaaS, Web & Mobile Testing | Top Rated With 9+ years of QA experience, 5,900+ Upwork hours, 60+ five-star reviews, and $80K+ earned, I've helped teams improve product quality across AI platforms, SaaS products, healthcare, fintech, eCommerce, and enterprise applications. My expertise goes beyond traditional software testing. As AI-powered products become mainstream, I help clients validate AI Agents, LLM applications, chatbots, RAG systems, prompt workflows, and Digital Human experiences, ensuring they are accurate, reliable, secure, and production-ready. What I can help you with AI & Agentic AI Testing AI Agent Testing LLM & Generative AI Validation Prompt Engineering Validation RAG Workflow Testing AI Chatbot Testing Digital Human Testing AI Workflow & Automation Testing AI Response Consistency & Hallucination Testing Software QA Manual Testing Exploratory Testing Regression Testing Functional Testing Smoke & Sanity Testing User Acceptance Testing (UAT) Cross-Browser & Cross-Device Testing Web, Mobile & SaaS Testing SaaS Platforms Web Applications Mobile Apps (Android & iOS) CRM & ERP Systems eCommerce Platforms Enterprise Applications API & Integration Testing REST APIs GraphQL APIs Postman API Automation Third-Party Integrations Payment Gateway Testing Automation & Performance Selenium Cypress Playwright JMeter Performance & Load Testing CI/CD Quality Validation Industries I've Worked With • AI & SaaS • Healthcare • FinTech • eCommerce • Real Estate • Hospitality • Education • Research Platforms • Business Applications Why Clients Hire Me ✔ Top Rated Upwork Freelancer ✔ 9+ Years of Professional QA Experience ✔ 60+ Five-Star Reviews ✔ 5,900+ Hours on Upwork ✔ Clear Bug Reports with Screenshots & Videos ✔ Strong Communication ✔ Fast Turnaround ✔ Detail-Oriented Testing ✔ Business-Focused Quality Assurance I don't just execute test cases—I think like your users, challenge assumptions, identify hidden risks, and help you release software with confidence. Whether you're launching a new AI product, scaling a SaaS platform, improving a mobile app, or preparing a production release, I'll work as an extension of your team to ensure quality at every stage. Let's build software your users can trust.