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Network Engineer, Security

Jane Street· Technology
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New York$200k - $300kFull-timePosted 3mo ago

About the role

Experienced Network Engineer to join the Network Security team to run, scale, and improve network security infrastructure through hands-on operations, design, and implementation. Focus on security appliances, network segmentation, DMZ, and collaboration with Cybersecurity and application teams.

Responsibilities

  • Work closely with the 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, and communicating requirements to our software engineers
  • Improve our network security processes and documentation

Qualifications

  • 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
  • Have a high capacity to learn; we are interested in how you think, not just what you know
  • Able to context-switch, while still being able to prioritize and organize your stack
  • Ideally have experience with overlay networks (EVPN, VxLAN)
  • A flexible and reliable team player who enjoys working in a collaborative environment
  • Preferably have proficiency in a programming language

Skills

Required:Network infrastructure operation and deploymentRouting and network protocolsTransport protocol troubleshootingFirewall hardware architecture and configurationPublic Key Infrastructure and encryption
Nice to have:Programming proficiency (optional)

Benefits

  • Base salary is $200,000 - $300,000. Base salary is only one part of Jane Street total compensation, which includes an annual discretionary bonus.
Last updated Oct 25, 2026. Interested? Apply on the company site.

About Jane Street

SIX

Jane Street is a quantitative trading firm and liquidity provider with a unique focus on technology and collaborative problem solving.

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