Job Description

We’re looking for a Senior IPv6 Engineer to take ownership of IPv6 feature development and integration across our UniFi gateway routers. You’ll design, build, and optimize critical IPv6 networking components that enable secure, reliable, and high-performance connectivity for our global users.

Design, develop, and maintain IPv6 networking features in enterprise router firmware and software stacks;
Ensure seamless IPv4-to-IPv6 coexistence (dual-stack, tunneling, NAT64, DS-Lite, MAP-E, etc.) for enterprise and ISP-grade deployments;
Conduct performance tuning, benchmarking, and troubleshooting for IPv6 forwarding, security, and QoS features;
Collaborate with product managers and system architects to define the IPv6 roadmap and feature priorities;
Work closely with the QA team to suggest test plans, simulations, and automated test environments for IPv6 functionality.

Requirements

5+ years of experience in embedded networking software development
Strong hands-on experience with: IPv6 protocol stack implementation (L2–L7)
Strong hands-on experience with: IPv6 address management, DHCPv6, SLAAC
Strong hands-on experience with: IPv6 Prefix Delegation
Experience with AI tools - Claude, Codex, etc
Fluent in English and Latvian

Nice to have

Experience with IPv6 interoperability testing with ISPs
Experience with IPv6 certification processes (e.g., IPv6 Ready Logo, Hurricane Electric IPv6 Sage, or equivalent).
Familiarity with UniFi platforms.