Carlo Mari T.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 take a practical, user-focused approach to testing and support. I’ve worked hands-on with software across different environments, and I understand how small issues can impact real users. My goal is not just to find bugs, but to help ensure systems are stable, secure, and easy to use. I combine manual testing, troubleshooting, and IT operations experience to support both product quality and day-to-day system reliability. QA & Software Testing End-to-End Testing: Tested applications from installation to full functionality across Windows, macOS, Linux, and Raspberry Pi environments. Bug Investigation & Documentation: Analyzed log files to identify errors and unusual behavior, and created detailed bug reports with clear reproduction steps for engineering teams. Web Application Testing: Tested web-based platforms focusing on usability, functionality, and overall user experience. Cross-Team Collaboration: Worked closely with QA and engineering teams by submitting well-documented tickets and supporting issue resolution. Technical Support & IT Operations User Support & Troubleshooting: Provided direct support to users, resolving issues and guiding them through solutions across multiple platforms, including Discord. System Monitoring & Incident Response: Monitored systems using Datadog, investigated performance issues, and helped maintain uptime and reliability. Automation & Process Improvement: Developed Bash and Python scripts to automate deployments and monitoring, improving efficiency and reducing downtime risks. IT Administration & Access Management User Lifecycle Management: Handled onboarding and offboarding processes, ensuring proper system access and smooth transitions. Security & Access Control: Implemented and enforced 2FA policies to strengthen system security and compliance. Device & Asset Tracking: Maintained records of company devices to ensure accountability and proper allocation. Subscription & Cost Management: Tracked and optimized system subscriptions and licenses to reduce unnecessary costs. Technical Toolkit Testing: Manual QA, Functional Testing, Cross-Platform Testing (Windows, macOS, Linux, Raspberry Pi), Web App Testing Tools: Datadog, Shortcut, GitHub, Notion, Zendesk, Jira, Docker, DigitalOcean, AWS (basic), Google Docs Scripting & Automation: Bash, Python Systems: Windows, macOS, Linux,