Senior Cybersecurity Design Architect (OCaml Experience)

Posted 4 Days Ago
Be an Early Applicant
New York, NY, USA
In-Office
Senior level
Financial Services
The Role
Lead and coordinate security initiatives: perform threat modeling, security audits, penetration testing, architecture reviews, and incident response; build security frameworks and SDLC practices; assess low-latency trading systems; implement controls and monitoring; mentor junior staff and work across multiple teams to translate security requirements into practical implementations.
Summary Generated by Built In
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

Skills Required

  • Bachelor's degree (3 or 4 year) 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.
  • Minimum 2 years performing threat modeling, penetration testing, and vulnerability assessments for systems built with Python and OCaml.
  • Minimum 2 years managing projects and leading cybersecurity initiatives across multiple global teams, including architecture reviews and application security.
  • Minimum 2 years assessing security of low-latency trading systems.
  • Minimum 2 years building security frameworks, including experience in application security and SDLC working closely with engineers to secure custom-built systems.
  • Willingness to undergo employer-conducted testing to assess minimum technical proficiency.

Jane Street Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Jane Street and has not been reviewed or approved by Jane Street.

  • Career-Linked Recognition & Rewards Pay is considered exceptionally strong across roles, with substantial bonuses in strong years and firm-wide performance sharing. Collaboration is expected and rewarded, reinforcing a team-oriented payout model.
  • Healthcare Strength Benefits include zero-premium medical, dental, and vision coverage in the U.S., plus access to on-site or concierge primary care, physical therapy, and mental health services. This breadth and convenience signal a robust healthcare offering.
  • Parental & Family Support Paid parental leave is described as generous, with equipped nursing rooms and backup childcare cited. Family-oriented supports like fertility coverage and elder‑care backup further enhance the package.

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The Company
HQ: New York, NY
1,390 Employees
Year Founded: 2000

What We Do

Jane Street works differently. As a liquidity provider and market maker, we trade on more than 200 trading venues across 45 countries and help form the backbone of global markets. Our approach is rooted in technology and rigorous quantitative analysis, but our success is driven by our people. Our bright, beautiful offices in the heart of New York, London, Hong Kong, and Amsterdam are open and buzzing with conversation. We come from many backgrounds and encourage travel between offices to share perspectives. Some of our best ideas come from bumping into a visiting colleague at the office coffee bar. Markets move fast. Staying competitive as we’ve grown has required constant invention—of new trading strategies, technology, and processes. We’ve found this is easier when you hire humble, kind people. They tend to help each other, and prioritize teamwork over titles. We invest heavily in teaching and training. There’s a library and a classroom in every office, because deepening your understanding of something is considered real work. Guest lectures, classes, and conferences round out the intellectual exchanges that happen every day. People grow into long careers at Jane Street because there are always new and interesting problems to solve, systems to build, and theories to test. More than twenty years after our founding, it still feels like we’re just getting started.

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