Role Overview
We are looking for a QA Engineer with strong manual testing experience to validate an Endpoint DLP/security product across Windows and mac OS .
The role will focus on end-to-end functional, integration, network, security, and interoperability testing. The engineer should have a good understanding of Data Loss Prevention (DLP), endpoint security, and networking concepts and should be comfortable troubleshooting issues using logs, network captures, and system-level tools.
Key Responsibilities
Perform end-to-end testing of the Endpoint DLP product on Windows and mac OS . Validate agent installation, uninstallation, upgrade, authentication, enrolment, configuration, and policy synchronization. Test DLP policies for allow/block scenarios using sensitive and non-sensitive data. Validate DLP detection for data such as PII, PCI, PHI, credentials/secrets, source code, and confidential information . Test data movement through prompts, file uploads, and other supported application workflows. Validate traffic interception and routing between the endpoint, secure tunnel, cloud gateway, DLP services, and destination applications . Verify that monitored application traffic is correctly intercepted while unrelated traffic is not impacted. Perform network-level troubleshooting using tools such as Wireshark, tcpdump, netstat, nslookup/dig, curl, ping, traceroute , or equivalent Windows/mac OS utilities. Validate Wire Guard/VPN tunnel connectivity, routing, DNS, TLS/certificate behavior, and network recovery scenarios . Analyze endpoint, agent, service, driver/network extension, and cloud-side logs to identify the source of failures. Perform negative and recovery testing including service crashes, network disconnect/reconnect, reboot, sleep/wake, authentication failures, backend unavailability, and configuration failures. Perform compatibility and interoperability testing with enterprise security products such as Zscaler, Crowd Strike, VPN/SASE, EDR, or similar endpoint/network security solutions . Execute functional, integration, regression, exploratory, and release validation. Create and maintain detailed test cases in Test Rail or similar test-management tools . Report defects with clear reproduction steps, logs, screenshots, packet captures, and other supporting evidence. Work closely with developers and automation engineers to identify scenarios suitable for regression automation.
Required Skills
10+ years of QA/testing experience , preferably with endpoint, networking, cybersecurity, or enterprise security products. Strong hands-on experience in manual testing and end-to-end system testing . Good understanding of Data Loss Prevention (DLP) concepts, including policies, sensitive-data detection, allow/block enforcement, and data exfiltration scenarios. Strong understanding of networking fundamentals, including: TCP/IP and UDP DNS HTTP/HTTPS TLS/SSL and certificates Routing VPN/tunneling Proxy concepts Network interfaces Experience troubleshooting network traffic using Wireshark/tcpdump or similar packet-capture tools . Good working knowledge of Windows and mac OS . Comfortable working with Windows services/processes and mac OS processes, permissions, certificates, and system/network components. Ability to read and analyze application/service logs. Experience testing APIs using Postman, curl, or similar tools . Good understanding of client-server and cloud-based architectures. Strong debugging and root-cause-analysis skills.
Good to Have
Experience in any of the following would be an advantage:
Endpoint security products such as DLP, EDR, VPN, SASE, CASB, or Secure Web Gateway . Zscaler, Crowd Strike, Netskope, Microsoft Defender , or similar security products. Wire Guard or other VPN/tunneling technologies. TLS interception / SSL inspection. Windows drivers or network filtering concepts. mac OS Network/System Extensions. Cloud Gateway or proxy-based architectures. Basic Linux knowledge. Basic scripting knowledge in Python, Bash, or Power Shell . Jira, Confluence, and Test Rail. Testing desktop applications and enterprise endpoint agents.
What We Are Looking For
We need someone comfortable going beyond standard UI testing. The engineer should be able to investigate a failure across the complete flow—from the desktop application and endpoint agent to network traffic, Gateway, DLP decision, and final allow/block behavior —and work with developers to identify where the issue occurred.