Jane Street
Network Engineer, Security
New York, New York, United States · Full-time · Posted Aug 15, 2025
- Experience
- 7+ years of experience operating and deploying network infrastructure.
About the job
Operate, design, and improve network security infrastructure, including security perimeter systems, network segmentation, and threat mitigation.
What you'll do
- Design, deploy, and manage network security infrastructure, segmentation, and DMZs.
- Evaluate and test security platforms; troubleshoot issues and coordinate threat detection and mitigation.
- Improve observability, scripting, support processes, and documentation while collaborating across teams.
What they ask for
- Experience with routing and network protocols (OSPF, BGP, PIM-SM) and troubleshooting TCP/UDP.
- Strong understanding of firewall architecture, performance metrics, configuration, and troubleshooting.
- Understanding of Public Key Infrastructure and modern encryption techniques.
- Strong communication, analytical thinking, and ability to prioritize and organize work.
Nice to have
- Experience with overlay networks (EVPN, VxLAN).
- Proficiency in a programming language.
Tools
OSPF, BGP, PIM-SM, TCP/UDP, EVPN, VxLAN
Model-written summary · the original posting is authoritative