Senior Software Engineer - IPv6 Networking exp is a must**

Overview

Senior Software Engineer role focused on designing, implementing, and hardening IPv6 capabilities across SonicWall firewall/NGFW firmware stacks.

What you'll do

• Own end-to-end design and implementation of IPv6 features across the firewall networking stack (routing, addressing, DHCPv6, NDP, MLDv2, IPv6 PBR).
• Drive IPv4/IPv6 feature parity across subsystems including VPN tunnel interfaces, IPsec/IKEv2, SSL-VPN, Syslog, SNMP, and NAT64.
• Architect and optimize IPv6 dataplane paths for forwarding, classification, ACL matching, and session lookup.
• Diagnose and resolve IPv6 interoperability, conformance, and performance issues (NDP, prefix delegation, ICMPv6 errors, fragmentation edge cases).
• Define compliance with specified IETF IPv6 RFCs in the firewall codebase.
• Collaborate with Platform, Security, Data Platform, and QA to integrate and validate IPv6 changes at scale.

What you'll need

• 7–9+ years of hands-on C/C++ systems-level development for networking platforms.
• Production-level IPv6 protocol implementation experience (addressing, subnetting, DHCPv6-PD, NDP/RA, MLDv2, OSPFv3, BGP IPv6 AFI/SAFI, RIPng).
• Experience with IPsec/IKEv2 over IPv6 transport and IPv6 ACLs/PBR/line-rate classification.
• Strong understanding of Ethernet/VLANs/802.1Q, routing, NAT, firewall state tables, and VPN tunneling with IPv4 and IPv6.
• Knowledge of high-performance packet processing frameworks such as DPDK/ODP/OFP/XDP/eBPF.
• Debugging experience using tools like tcpdump, Wireshark, GDB, kernel trace tools, and network emulation (GNS3/EVE-NG).

Details

• Location: Pune, Maharashtra, India.
• Hybrid: referenced via #LI-Hybrid.