Harkaran S.Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.

I help businesses deliver reliable, high-quality web and mobile applications by identifying issues before they impact users. With 5+ years of experience in Software Quality Assurance, I have worked with startups, SMEs, and enterprise teams across industries including eCommerce, SaaS, CRM, ERP, Healthcare, Education, Retail, Real Estate, and Social Networking. My approach goes beyond finding bugs. I focus on understanding business requirements, validating user workflows, improving product quality, and ensuring every release meets functional and usability expectations. **My expertise includes:** * Manual Testing * Functional Testing * Regression Testing * Smoke & Sanity Testing * Exploratory Testing * API Testing * UI/UX Validation * Cross-Browser & Cross-Platform Testing * Mobile Application Testing (Android & iOS) * Defect Reporting & Tracking * Test Planning, Test Case Design & Execution * Acceptance Testing I have hands-on experience working in Agile environments, collaborating closely with developers, business analysts, and product managers throughout the Software Testing Life Cycle (STLC). I create clear, comprehensive test plans, execute detailed test cases, and provide actionable bug reports that help development teams resolve issues efficiently. **Security Testing Experience** I also perform basic web and mobile application security assessments using industry-standard tools, including: * OWASP ZAP * Nmap * Nikto * SQLMap * MobSF * Wireshark * OpenVAS * Frida * Android Debug Bridge (ADB) My experience includes validating applications against common security vulnerabilities such as SQL Injection (SQLi), Cross-Site Scripting (XSS), Command Injection, Authentication and Authorization issues, Form Manipulation, and other OWASP Top 10 risks. **Tools I work with:** Jira • Postman • Trello • Asana • Basecamp • Slack • GitHub If you're looking for a detail-oriented QA Engineer who communicates clearly, understands the importance of product quality, and is committed to delivering reliable testing support, I'd be happy to help your team build software with confidence.