J
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Senior Cybersecurity Design Architect (OCaml Experience)

United StatesUnited States·New Yorksenior
OtherDesign Architect
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Quick Summary

Requirements Summary

Conduct threat modeling assessments, security audits and reviews of systems, processes,

Technical Tools
OtherDesign Architect

Senior Cybersecurity Design Architect

Jane Street Group, LLC has multiple openings for a Senior Cybersecurity Design Architect in New York, New York.

The position duties are as follows: Serve as a technical security leader and cross-functional coordinator, translating security requirements into practical implementations and leading security initiatives from assessment through implementation. Day-to-day duties include: 

  • Conduct threat modeling assessments, security audits and reviews of systems, processes, third-party integrations and applications across Jane Street; 
  • Lead security initiatives across cross-functional teams, managing project timelines and stakeholder expectations while defining security requirements and implementing new security controls and monitoring solutions; 
  • Act as primary cyber liaison for multiple teams including Unified Communications, Physical Security, MacOS Team, Workplace Services, Creative Engagement, IT Movers Adders Changers; 
  • Drive internal process improvements including interteam process enhancements and threat modeling methodology refinements; 
  • Perform penetration testing on internal systems and applications;
  • Participate in security incident response and remediation; and 
  • Mentor and train junior cybersecurity team members and engineers across the firm. 

The position requires a 3 or 4 year Bachelor’s degree in Computer Science, Information Security, Cybersecurity, or related technical field or foreign equivalent plus 4 years of progressively responsible experience as a cybersecurity engineer, cybersecurity architect, or similar occupation.  Experience must include: 

  • 2 years of experience performing threat modeling, penetration testing, and vulnerability assessments for systems built with Python and OCaml;
  • 2 years of experience managing projects and leading cybersecurity initiatives across multiple, global teams, including experience in architecture reviews and application security;
  • 2 years of experience assessing security of low-latency trading systems; 
  • 2 years of experience building security frameworks, including experience in application security and SDLC, working closely with engineers to secure custom-built systems;
  • All technical requirements for this role may be subject to employer conducted testing to assess minimum proficiency.

Part time telecommuting may be permitted with manager approval.

Ref. SSAEP26

Location & Eligibility

Where is the job
New York, United States
On-site at the office
Who can apply
US

Listing Details

Posted
July 7, 2026
First seen
July 7, 2026
Last seen
July 10, 2026

Posting Health

Days active
0
Repost count
0
Trust Level
60%
Scored at
July 7, 2026

Signal breakdown

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J
Senior Cybersecurity Design Architect (OCaml Experience)