Test Principal Engineer- Networking background is a must

SonicWall•Milpitas, CA

About The Position

SonicWall is seeking a Test Principal Engineer with a strong networking background to support enterprise customers and validate networking and security products. The role serves as a subject matter expert for escalated customer issues, leads troubleshooting of complex incidents, and drives high-impact issues through root-cause analysis and resolution. It also involves designing and maintaining test environments, defining test strategies and validation plans, and collaborating with Engineering, Support, QA, and Product teams. The position requires strong knowledge of networking protocols and technologies, network security, operating systems, and diagnostic and test equipment, along with the ability to manage multiple priorities in a high-pressure, interruption-driven environment. SonicWall describes itself as a partner-first cybersecurity company serving SMBs, MSPs, and IT teams, with a global ecosystem of more than 17,000 partners and solutions delivered in over 100 countries.

Requirements

Excellent problem-solving, communication, organizational, and time-management skills; flexibility and dependability.
Strong understanding of L2–L7 networking protocols, especially SSL, high availability, state synchronization, and network clustering.
Knowledge of UNIX, Linux, and Microsoft Windows operating systems.
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: STP, RSTP, MSTP, and PVST+.
Experience testing routing protocols: OSPF, IS-IS, and 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 firewalls, IPS, IDS, and vulnerability protection.
Bachelor's degree in Computer Science, Electrical Engineering, or a related field, or equivalent experience.
7–10+ years of experience in networking, network security, technical support, QA, or a related engineering discipline.
Proven crisis-management and customer-facing problem-resolution experience.
Ability to configure, analyze, and troubleshoot medium- to large-scale network environments.
Excellent verbal and written communication, including in remote and cross-functional environments.
Ability to work independently and contribute to a collaborative team; self-motivated, with a strong sense of ownership and a can-do attitude.

Nice To Haves

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 skills.

Responsibilities

Serve as a subject matter expert for escalated issues from SonicWall Enterprise customers.
Lead troubleshooting of complex customer issues using 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 with Engineering, Support, QA, and Product teams to identify root causes and implement solutions.
Manage multiple priorities in a high-pressure, interruption-driven environment.

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