Network Engineer, Security

About the role

Network Engineer, Security - Jane Street, Singapore

We are looking for an experienced Network Engineer to join our Network Security team to help us run, scale, and continuously improve our network security infrastructure through hands-on operations, design, and implementation. The ideal candidate will have strong networking fundamentals and experience with security appliances such as firewalls and proxy. Jane Street's numerous distributed systems are built on an agile, reliable, multi-vendor network infrastructure that supports all traffic profiles, from trading to internet connectivity.

Key Responsibilities

• Work closely with our Network Engineering team on the design and deployment of security perimeter and adjacent network infrastructure
• Manage and continuously evolve network segmentation, DMZ, and other aspects of network security
• Evaluate and lab test new platforms for our network security infrastructure
• Collaborate with our Cybersecurity team on the detection and mitigation of threats and vulnerabilities on our network
• Interface with application owners and traders to enable business workflows securely
• Proactively enhance support by improving network infrastructure observability and scripting
• Improve our network security processes and documentation

Requirements

• Have 7+ years of experience operating and deploying network infrastructure
• Experienced with routing and network protocols (OSPF, BGP, PIM-SM)
• Experienced with troubleshooting transport protocols (TCP/UDP)
• Have a strong understanding of firewall hardware architecture, performance metrics, and functional components
• Experienced with firewall configuration and troubleshooting
• Understand Public Key Infrastructure and related technologies
• Understand modern encryption techniques
• Ideally have experience with overlay networks (EVPN, VxLAN)
• Preferably have proficiency in a programming language
• Fluency in English required