Manual QA Engineer with Automation Skills ( azakhstan (GMT+6) — 3 hours of overlap with Japan)

ClientOur client is a multi-national company dedicated to Cybersecurity.Project overviewProject aims to support our client in increasing the capacity and productivity of their development and technology teams by leveraging our expertise to deliver measurable value and tangible results. Through close collaboration and a results-driven approach, we help strengthen technical capabilities, optimize delivery, and enable teams to achieve their objectives more efficiently.Position overviewWe are looking for an experienced Manual QA Engineer to join the Cybereason QA team and take ownership of testing the endpoint (client-side) security agent across Windows, macOS, and Linux environments.This role focuses exclusively on validating sensor behavior, system stability, performance, and resilience under real-world conditions. We require an independent professional capable of managing the entire quality process from start to finish without external guidance. It requires system-level ownership across endpoint, sensor, network, and backend, including failure/recovery scenarios.You will work closely with Sensor developers, backend teams, and product management to validate that the sensor operates correctly from installation through detection, telemetry, communication, and remediation flows.ResponsibilitiesOwn end-to-end testing of the client’s platform endpoint sensor across supported operating systemsDesign and execute test scenarios covering full sensor lifecycle: install, upgrade, runtime, communication, failure, and uninstallValidate sensor interaction with backend services including data ingestion, command execution, and policy updatesPerform functional, regression, and exploratory testing on low-level sensor capabilitiesValidate sensor behavior under real endpoint conditions such as high CPU, memory pressure, process storms, disk IO stress, and network disruptionsTest sensor resilience, recovery, and self-healing mechanismsAnalyze logs, telemetry, system traces, and OS-level artifacts to identify root causes of failuresCollaborate with developers on reproducing issues and validating fixesParticipate in release readiness and sign-off for sensor versionsContribute to test documentation, test plans, and quality metricsRequirementsStrong experience testing endpoint / client-side softwareDeep understanding of at least one OS: Windows, macOS, or LinuxExperience with debugging using logs, system tools, and OS diagnosticsFamiliarity with network communication and client-server protocolsExperience with scripting and automation (Python, JavaScript/TypeScript, Bash, PowerShell, etc.)Knowledge of cloud backends and telemetry pipelinesExperience with chaos or fault-injection testingStrong system-level thinking and attention to detailAbility to work independently and take ownership of qualityExperience with end-to-end system testingFamiliarity with CI/CD pipelines and automated testingClear communication with engineering and cross-functional teamsComfortable working across multiple teams and disciplinesNice to haveExperience testing security products, EDR, agents, or low-level system componentsFamiliarity with malware behavior, attack techniques, or security telemetryUnderstanding of endpoint monitoring and customization