# Jiafeng Tang > Principal Software Engineer Location: Sunnyvale, California, United States Profile: https://flows.cv/jiafeng ## Work Experience ### Principal Software Engineer @ Palo Alto Networks Jan 2022 – Present | Santa Clara, California, United States Focus on IPsec VPN. ### Principal Software Engineer @ Fortinet Jan 2019 – Jan 2022 | Sunnyvale, California Working on FortiWEB team, FortiWEB is a web application firewall product based Epoll/DPDK framework. Focus on Http/Https Proxy, Web Server Health Check, Load Balance, Content Routing, Session Persistence, Traffic Statistics, CGI for GUI. ### Principal Software Engineer @ Fortinet Jan 2017 – Jan 2019 | Beijing Working on LTE Gateway product, focus on interface and route management, DHCP, DNS, ARP proxy; and firewall policy based on IPTables, and QoS based on linux TC; Using snort to implement a prototype for application identify. ### Staff Software Engineer @ 瞻博网络 Jan 2015 – Jan 2017 | Beijing Working on firewall product, focus on flow and data path. ### Software Engineer @ Qihoo 360 Jan 2015 – Jan 2015 | Beijing, China Working on DLP product. ### Principal Software Engineer @ Hillstone Networks Jan 2014 – Jan 2015 | Beijing Working on firewall product, focus on flow and data path. ### Senior Software Engineer @ 瞻博网络公司 Jan 2008 – Jan 2014 | Beijing Working on firewall product, focus on flow and data path. ### Software Engineer @ 新华三集团 Jan 2004 – Jan 2008 | Beijing Working on security platform, focus on NAT, ALG(FTP/DNS/H.323/SIP/RTSP, etc.) ### Software Engineer @ Huawei Jan 2003 – Jan 2004 | Beijing, China Working on firewall product, focus on ACL and control message sync between CP and NP. ### Software Engineer @ LiDaZhiTong Jan 2002 – Jan 2003 | Beijing, China Working on batch process system for NOMURA SECURITIES and YACHIYO GINKO. ### IT Support Technician @ Beijing NORTH Vehicle Group Corp. Jan 2001 – Jan 2002 | Beijing, China IT support ## Contact & Social - LinkedIn: https://linkedin.com/in/jiafeng-tang-7766b51b --- Source: https://flows.cv/jiafeng JSON Resume: https://flows.cv/jiafeng/resume.json Last updated: 2026-04-12