• Test complex client-server / cloud applications related to RMM (agents, policies, alerts, remote actions, patching, reporting) • Analyze feature requirements, verify product functionality alignment with requirements, and proactively identify gaps, risks, and missing scenarios • Develop and execute manual test plans covering functional, regression, integration, and end-to-end scenarios, including negative testing and edge cases • Build and maintain test environments: deploy endpoints (physical/virtual), simulate real customer setups (MSP / multi-tenant), configure networks, permissions, and security controls • Perform deep troubleshooting: analyze logs, telemetry, and network behavior; provide clear root cause analysis and actionable reproduction steps • Collaborate closely with development teams, architects, and product owners to refine requirements, improve observability, and drive quality improvements • Investigate customer issues in production-like contexts and participate in technical discussions with R&D