Apply on Employer Site

ZeroTier · 1 month ago

Staff Network Engineer – Low-Level Networking Agent

United States

Full-time

Remote

Senior Level, Lead/Staff

5+ years exp

ZeroTier leads the world in next-generation connectivity and cybersecurity. The Staff Network Engineer will help build, extend, and maintain the ZeroTier client, focusing on secure, reliable, and high-performance connectivity while working closely with platform, infrastructure, and security teams.

Cloud InfrastructureCyber SecurityInformation TechnologyMobileNetwork SecurityVirtualization

Responsibilities

Participate in design and implementation strategies to enhance and improve ZeroTier’s networking agent

Develop and maintain communication primitives using protocols such as TCP and UDP, as well as custom transport layers

Implement secure tunneling, NAT traversal techniques, and robust reconnection/keepalive mechanisms

Work with low level, OS-specific operations (sockets, netlink, firewall rules, etc.) to optimize data paths

Profile and optimize network performance (latency, throughput, connection reliability)

Build cross-platform abstractions enabling the agent to run in varied environments

Write clean, maintainable, well-tested code and contribute to architecture documentation

Collaborate with cross-functional teams on system design, threat modeling, and deployment strategies

Qualification

CC++RustNetworking protocolsLinuxWindows internalsNAT traversal techniquesPerformance profiling toolsStartup experienceTechnical documentationCollaboration skills