Test Principal Engineer- Networking background is a must

For more than 30 years, SonicWall has delivered a partner-first unified cybersecurity portfolio that helps SMBs, MSPs, and IT teams consolidate network security, endpoint security, security service edge (SSE), and threat response across hybrid environments. By bringing connected technology, real-time threat intelligence, automation, and expert services together, SonicWall helps organizations simplify security operations, achieve better security outcomes, and lower total cost of ownership. Backed by a global ecosystem of more than 17,000 partners, SonicWall delivers enterprise-grade protection built for SMB and mid-market realities. For more information, visit www.sonicwall.com or follow us on X, LinkedIn , Facebook , and Instagram . SonicWALL is looking for talented individuals who want to work in cutting-edge technology with a dynamic, fast-growing company. If you have what it takes to thrive in this fast-paced environment and you meet the minimum requirements for this position, please get in touch with us. We'd love to hear from you! Must possess excellent problem-solving and communication skills. In addition, the individual must be flexible, dependable, and have excellent time management skills. A strong understanding of L2-L7 networking protocols, with major emphasis on SSL, HA (High Availability), State Sync, Network Cluster, and major Operating Systems such as UNIX, Linux, and all Microsoft Windows operating systems is needed. Key Responsibilities • Serve as a subject matter expert (SME) for escalated issues from SonicWall Enterprise customers. • Lead troubleshooting efforts for complex customer issues using tools such as Wireshark, Netmon, and other network diagnostic utilities. • Act as the technical focal point for high-impact customer incidents and drive issues to resolution. • Design, build, and maintain test environments to reproduce customer-reported issues. • Define test strategies, methodologies, and validation plans for networking and security products. • Collaborate closely with Engineering, Support, QA, and Product teams to identify root causes and implement solutions. • Work effectively in a high-pressure, interruption-driven environment while managing multiple priorities. Required Technical Skills • Strong understanding of Ethernet, TCP/IP, and networking fundamentals. • Expertise in SSL testing, system testing, and functional validation. • Hands-on experience with Layer 2 and Layer 3 networking technologies. • Experience testing switching protocols, including: • STP • RSTP • MSTP • PVST+ • Experience testing routing protocols, including: • OSPF • IS-IS • BGP • Proficiency with network test equipment such as IXIA and Spirent. • Hands-on experience configuring and troubleshooting Cisco and Juniper switches and routers. • Working knowledge of LAN/WAN networking architectures and implementation methodologies. • Strong understanding of network security technologies, including: • Firewalls • IPS • IDS • Vulnerability Protection Preferred Qualifications • Experience with multicast technologies such as PIM-SM, IGMP, MLD, and MSDP. • Experience with MPLS technologies, including RSVP, LDP, and Traffic Engineering. • Prior experience as an Escalation Engineer or Technical Support Engineer supporting enterprise networking environments. • Proven ability to recreate and resolve customer issues remotely. • Strong analytical, troubleshooting, and root-cause analysis skills. • Experience working directly with enterprise customers and managing critical escalations. • Excellent presentation and communication skills. Qualifications • Bachelor's degree in Computer Science, Electrical Engineering, or a related field (or equivalent experience). • 7-10+ years of experience in networking, net