Network Support Engineer

A10 Networks, Inc; San Francisco (CA); On-site; USD 115,000 - 120,000; Full time

Job summary

A10 Networks is seeking a Senior Network Engineer in San Francisco to troubleshoot product, configuration, or network issues, document events in CRM, and participate in bug verification before patches are released. You will be a key resource for customer satisfaction and play a critical role across engineering, DevOps, and support teams.

Responsibilities include identifying L4–L7 issues, analyzing TCP performance, and troubleshooting across AWS/Azure/OCI/GCP environments.

Qualifications

• Bachelor’s degree or equivalent practical experience in CS/Engineering.
• 3+ years in network support or related technical role.
• Certifications such as CCNA/CCNP/JNCIE/JNCIP preferred.
• Foundational knowledge of TCP/IP, HTTP/S, DNS, SSL/TLS.
• Experience with packet capture tools like Wireshark or tcpdump.
• Exposure to load balancing or ADC platforms.
• Familiar with AWS/Azure/OCI/GCP.
• WAF, DDoS protection, or SSLi familiarity.

Responsibilities

• Identify and troubleshoot L4–L7 traffic issues (SSL, HTTP, other application layer protocols).
• Analyze performance issues: TCP retransmissions, session drops, HTTP errors.
• Collaborate with customer network, application, and DevOps teams to resolve issues.
• Troubleshoot ACOS across hybrid and multi-cloud deployments (AWS, Azure, OCI, GCP).
• Investigate application-layer security issues (WAF, SSLi) and detect DDoS attacks.
• Perform packet-level analysis with tcpdump/Wireshark for debugging.
• Use traffic generators (Ixia/Spirent/JMeter) for testing scenarios.
• Reproduce customer issues in lab environments and verify software behavior.
• Contribute to KBs, FAQs, and troubleshooting playbooks.
• Participate in internal training to advance packet analysis skills.

Skills

Networking basics

Troubleshooting

Packet analysis

Cloud (AWS/Azure/OCI/GCP)

WAF/DDoS security

Communication

Education

Bachelor's degree in CS/Engineering

Tools

Wireshark

tcpdump

Ixia

Spirent

JMeter

Job description

As a Senior Network Engineer, you will directly interact with customers and other functional groups within A10 Networks to troubleshoot, identify and resolve product, configuration or network related issues. You will capture and document details and events in the CRM application throughout the solution discovery process. Also you will participate in bug verification process before a software patch code is released to the customers. You are the key resource to ensure customer satisfaction with A10’s products and services.

Key Responsibilities

• Identify and troubleshoot L4–L7 traffic issues involving SSL, HTTP, and other standard application layer protocols
• Analyze performance related issues related to TCP retransmissions, session drops, and common HTTP errors
• Work with customer network, application, and DevOps teams to resolve integration issues and identify configuration errors
• Troubleshoot ACOS issues across hybrid and multi cloud deployments like AWS, Azure, OCI, and GCP
• Troubleshoot application layer security issues related to WAF, SSLi and perform traffic analysis to detect DDoS attacks
• Use tools like tcpdump and wireshark to conduct packet level analysis to debug issues
• Use traffic generation tools such as Ixia, Spirent or Apache JMeter for simulating network and application traffic during testing and troubleshooting scenarios
• Reproduce customer issues in lab environments and verify software behavior
• Contribute to KBs, FAQs, and troubleshooting playbooks by summarizing resolved issues or lessons learned
• Participate in internal training sessions and actively develop skills in packet analysis and advanced troubleshooting practices

Qualifications

• Bachelor’s degree in Computer Science, Engineering, or related technical field, or equivalent practical experience
• Relevant education and 3+ years of hands‑on experience in network support, system administration, or a similar technical role
• Networking certifications preferred (e.g., CCNA, CCNP, JNCIE, JNCIP)
• Foundational understanding of networking concepts such as TCP/IP, HTTP/S, DNS, and SSL/TLS
• Experience using packet capture tools like Wireshark or tcpdump
• Exposure to load balancing or ADC platforms
• Familiarity with cloud environments such as AWS, Azure, OCI or GCP
• Familiarity or foundational experience with WAF, DDoS protection, or SSLi

AI Use Guidelines for Interviews: Our interviews are designed to reflect your own skills and thinking. The use of AI or recording tools during live interviews is not permitted unless explicitly invited by the interviewer or approved in advance as part of a reasonable accommodation. If these tools are used inappropriately or in a way that misrepresents your work, your application may not move forward in the process.

A10 Networks is an equal opportunity employer and a VEVRAA federal subcontractor. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability status, protected veteran status, or any other characteristic protected by law. A10 also complies with all applicable state and local laws governing nondiscrimination in employment.

Targeted compensation guideline: $115,000 - $120,000. Compensation will vary based on number of factors, including market demand for specific skills, role type, job level, and individual qualifications. Final salary offers are determined by considerations including, but not limited to, subject matter expertise, demonstrated skill level, relevant experience, geographic location, education, certifications, and training.