Senior Network/Automation QA Engineer

• Build and maintain system testbeds involving Mist Edge (L2TPv3/IPsec concentrator) along with switches, routers, and servers.
• Perform QA validation of Mist Edge datapath, tunneling, and security features.
• Validate end-to-end client-to-cloud architecture, including traffic flow across L2TPv3/IPsec tunnels.
• Recreate complex customer networking and datapath issues in lab environments and collaborate with US and Beijing Engineering teams for resolution.
• Work closely with CS teams to review customer-reported issues and enhance test coverage for real-world deployments.
• Create and manage bugs in Jira and drive closure with Engineering teams.
• Perform timely escalation of critical datapath, scale, or performance issues.
• Develop technical documentation for QA and CS teams in Confluence.
• Train and mentor Level 1/2 Engineers on advanced networking, tunneling protocols, and troubleshooting techniques.
• Leverage AI-powered tools (e.g., GitHub Copilot) to accelerate test creation, log analysis, and debugging workflows.
• Contribute to automation frameworks using AI-assisted code generation to improve test coverage, regression efficiency, and defect detection.
• Apply AI-assisted approaches for anomaly detection, traffic pattern analysis, and faster root cause identification.

What you need to bring:

• BE/ME/MS in EE, CS, or related discipline.
• Strong understanding of low-level datapath and packet processing.
• Hands-on experience with L2TPv3 and IPsec (tunnel establishment, encapsulation, troubleshooting).
• Solid knowledge of Layer 2 Switching and Layer 3 Routing concepts (VLANs, DHCP, DNS, NAT, trunking).
• Experience with DHCP Relay, RadSec, and authentication flows.
• Working knowledge of multicast and service discovery protocols such as IGMP, MLD, and mDNS.
• Strong troubleshooting skills using packet captures (Wireshark/tcpdump) and log analysis.
• Ability to analyze and debug complex networking issues across control and data planes.
• Familiarity with automation frameworks and AI-assisted development tools (e.g., GitHub Copilot).
• Passion for solving customer issues in a fast-paced, highly technical environment.
• Ability to quickly and accurately assess and drive resolution of technical problems.
• Experience level: 10–15 years

Preferred Qualifications:

• CWNA/CWSP/CWAP/CWNE Certified.
• Scripting in Python.
• Hands on experience on ISE/ClearPass. 
• Basic knowledge of L2TPv3/IPsec.