Senior Network Support Engineer - Cloud & WAF

Threat X, Inc.; San Jose (CA); On-site; USD 115,000 - 120,000; Full time

Job summary

A10 Networks is seeking a Senior Network Engineer in the SF Bay Area to troubleshoot product, configuration, and network issues for customers and internal teams, documenting findings in CRM as solutions are developed.

You will verify bug fixes before patches, assist with DDoS and SSL/TLS issues, work with AWS/Azure/GCP, and contribute to knowledge bases while developing advanced packet-analysis skills through hands-on troubleshooting.

Qualifications

• Bachelor’s degree in CS, Eng, or related field, or equivalent practical experience.
• 3+ years hands-on experience in network support or similar technical role.
• Networking certifications preferred (e.g., CCNA, CCNP, JNCIE, JNCIP).
• Foundational understanding of 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.

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

Skills

Networking fundamentals

Wireshark

tcpdump

Cloud platforms

DDoS protection

WAF

SSL/TLS

Load balancing

CCNA/CCNP

Education

Bachelor’s degree in Computer Science, Engineering, or related technical field

Tools

Wireshark

tcpdump

Job description

A10 Networks is seeking a Senior Network Engineer in the SF Bay Area to troubleshoot product, configuration, and network issues for customers and internal teams, documenting findings in CRM as solutions are developed.

You will verify bug fixes before patches, assist with DDoS and SSL/TLS issues, work with AWS/Azure/GCP, and contribute to knowledge bases while developing advanced packet-analysis skills through hands-on troubleshooting.