Sr. Gateway SW Engineer

1.Independently deliver gateway features through the entire lifecycle: specification, design, implementation, testing, maintenance
2.Develop and maintain gateway modules, including but not limited to:
• Firewall and NAT
• VPN modules (IPsec, WireGuard, OpenVPN, L2TP)
• High Availability (keepalived integration, failover logic)
• IPS/IDS components
• Routing/PBR (FRR integration, policy routing)
• IPv6 modules (DHCPv6, RA, NDP proxy)
• LAN/WAN services (DHCP, DNS, failover, load balancing)
• Interface and SFP management
3.Debug feature-level networking issues across functionalities and configuration interactions
4.Produce design documentation, API definitions, test plans, and release notes

Requirements: 
1.Bachelor's degree in Computer Science, Electrical Engineering, or related discipline
2.3+ years of experience in Linux networking or embedded development
3.Strong programming ability in C and scripting languages such as Python or Bash
4.Understanding of core networking fundamentals, including firewall/NAT behavior, routing logic, packet flow, and basic connection tracking
5.Familiarity with TCP/IP fundamentals, DHCP, dnsmasq, packet inspection tools, and iproute2 utilities