---
title: 'Cybersecurity Engineer - Vulnerability Management at Jane Street'
canonical: 'https://feeny.ai/job/cybersecurity-engineer-vulnerability-management-jane-street-new-york-new-york-x4015tpm171m'
type: 'job'
last_seen: '2026-09-10'
---

# Cybersecurity Engineer - Vulnerability Management at Jane Street

- **Company:** Jane Street
- **Location:** New York New York, United States
- **Posted:** 2026-06-17
- **Last confirmed live:** 2026-09-10
- **Apply:** https://www.janestreet.com/join-jane-street/apply/8596433002?gh_jid=8596433002

## Job description

## About the Position

We're looking for a Cybersecurity Engineer to help us mature our vulnerability management program. You'll join our Cybersecurity team, a skilled group of programmers and security experts dedicated to keeping the firm safe.

Vulnerability management is the focus of this role, but it doesn't tell the whole story—we want a well-rounded engineer whose knowledge spans the different facets of cybersecurity, because that broader perspective is what lets you reason well about real risk and where to spend effort.

Vulnerability management is a well-established part of how we keep the firm safe, and as we grow, we're continuing to invest in it, with a particular focus on automation and on scaling the program to keep pace with an expanding environment.

This is a hands-on, build-heavy role. We want someone with a strong technical foundation who isn't afraid to build something themselves, who has good judgment about what actually matters, and who can explain the "why" behind a risk and its mitigation. Manual triage doesn't scale at our size, so you'll lean on automation, including AI tooling paired with good judgment, knowing where it helps and when we need a human in the loop.

Your work will also include:

- Supporting and improving the vulnerability management lifecycle end to end, from discovery and validation through triage, assignment, remediation tracking, and verification
- Reviewing new findings from automated scanning tools, threat intel, and security advisories, then prioritizing based on real exploitability and exposure rather than severity score alone, so we act on what genuinely matters
- Validating and deduplicating findings across sources, confirming whether an affected product or component is actually present, and routing work to the team that owns the fix
- Measuring scanning coverage and data quality and knowing what isn't being scanned, where scans are stale, and where authentication is failing, rather than assuming coverage is complete
- Driving automation across vulnerability management tooling and processes
- Broadening scanning coverage across asset classes, including evaluating and migrating scanning platforms as needed
- Bringing software inventory and SBOM data into the picture so we can answer where a vulnerable component is used across our software, not just what's running on a given host
- Building dashboards and metrics that measure coverage, SLAs, and progress

## About You

- You automate rather than do things by hand, keep your code and configs in version control by default, work comfortably under code review, and care about leaving things maintainable
- You’re comfortable working with data, querying and shaping it, and building and debugging the data pipelines and integrations that stitch messy, inconsistent inputs into something dependable
- You have hands-on vulnerability management experience in a substantial environment, including experience with an automated scanning platform such as Rapid7, Tenable, or Qualys, and an understanding of how scanning, asset inventory, and remediation tracking fit together
- You’re a measured responder who reasons about trade-offs and context, understands threat modeling, and knows not every finding deserves the same urgency
- You follow cybersecurity developments and can tell the difference between an interesting hack and what matters day-to-day
- You understand and practice good personal cybersecurity hygiene, and can talk to others about it
- You’re a clear communicator across audiences, who writes things down so others can follow
- You have a positive and collaborative attitude; You understand that a key component of cybersecurity is bringing others along with you on the journey

If you're a recruiting agency and want to partner with us, please reach out to agency-partnerships@janestreet.com

## About Jane Street

## Company Overview
- **One-liner**: Jane Street is a global quantitative trading firm and liquidity provider that uses sophisticated technology, machine learning, and deep market expertise to trade financial products across equities, bonds, options, and ETFs.
- **Entity Type**: Private (not publicly traded)
- **Headquarters**: New York, USA (with offices in London, Hong Kong, Singapore, and Amsterdam)
- **Founded**: 2000
- **Founders**: Not publicly disclosed as a single founder group; the firm was founded by a team of quantitative traders and technologists.

## Core Business
- **Primary industry/industries**: Quantitative finance / Proprietary trading / Market making
- **Target customers**: Institutional clients (asset managers, pension funds, insurance companies, hedge funds) and global exchanges; the firm acts as a liquidity provider on over 200 electronic exchanges.
- **Mission or purpose statement**: “Solving the puzzle of global markets” — a research-driven approach to trading, blending human intuition with cutting-edge quantitative analysis.

## Products & Services
- **Market Making**: Jane Street provides continuous, two-sided quotes on equities, ETFs, bonds, options, and other instruments, helping keep prices consistent and reliable across global markets.
- **Proprietary Trading**: The firm trades its own capital across a wide range of asset classes, using sophisticated models and automated strategies.
- **Institutional Sales & Trading**: Partners with asset managers, pensions, and insurance companies to provide trading solutions and access to differentiated liquidity.
- **Technology & Infrastructure**: Builds all critical software in-house (trading systems, risk management, data analysis tools), using the OCaml functional programming language.

## Market Standing
- **Valuation/Market Cap**: Not disclosed (private firm). Industry estimates suggest Jane Street is one of the world’s largest and most profitable market makers, with annual trading volumes in the trillions of dollars.
- **Key Metric**: Not publicly disclosed. The firm is widely reported to have generated billions in annual revenue and profit, though exact figures are private.
- **Notable Investors/Partners**: 100% employee-owned. No external investors. Partners include top institutional clients globally.
- **Growth Signals**: Jane Street has grown every year in team, capital, and global presence since its founding in 2000. It has expanded from a focus on ETFs into equities, bonds, options, and other asset classes. The firm continues to invest heavily in machine learning and quantitative research.

## Competitive Advantages
- **Technical Moat**: Builds almost all software in-house using OCaml, a statically typed functional language that provides high reliability, real-time visibility, and performance at market scale.
- **Data & Scale**: Trades on 200+ electronic exchanges globally, processing trillions of historical events to uncover both sub-microsecond and long-term market inefficiencies.
- **Talent Density**: A culture of intellectual curiosity and collaboration across trading, research, and technology teams. The firm is known for hiring top minds from any background (math, physics, CS, engineering) and training them in-house.
- **Long-Term Track Record**: Over 20 years of consistent growth and profitability, navigating volatile markets with a disciplined, research-driven approach.

## Strategic Focus
- **Machine Learning & Quantitative Research**: Deepening the use of ML techniques across all trading strategies, from high-frequency to long-term systematic models.
- **Global Expansion**: Continuing to grow its presence in existing offices (NY, London, HK, Singapore, Amsterdam) and exploring new markets.
- **Technology Investment**: Ongoing investment in infrastructure, hardware (e.g., programmable hardware, high-performance computing), and software tools to maintain a competitive edge.
- **Talent Pipeline**: Heavy focus on recruiting interns and new grads, as well as experienced hires, with structured programs for learning and mentorship.

## Why Work Here
- **Culture**: Described as “open and collaborative,” with porous boundaries between trading, research, and technology. Intellectual humility and curiosity are highly valued.
- **Learning & Development**: Offers immersive internships, multi-day programs, direct mentorship, and a week abroad for interns. Full-time employees have access to extensive internal training, a library, and classrooms in every office.
- **Work Environment**: Most employees write code as part of their regular work. The firm is known for its technical excellence and for using the most advanced tools available.
- **Benefits**: Daily breakfast and lunch, fully-stocked kitchens, on-site gyms, nursing suites, quiet rooms, recreation spaces, health services, and more. Offices are designed for collaboration and deep focus.
- **Remote/Hybrid Policy**: Not explicitly stated, but the firm emphasizes in-person collaboration on trading floors. Offices are located in major global cities.
- **Diversity**: Actively seeks people from all backgrounds and emphasizes that the company is only as strong as its people.

## Sources
1. [janestreet.com - Home](https://www.janestreet.com/)
2. [janestreet.com - Overview](https://www.janestreet.com/join-jane-street/overview/)
3. [janestreet.com - What We Do](https://www.janestreet.com/what-we-do/overview/)
4. [janestreet.com - Departments](https://www.janestreet.com/join-jane-street/departments)
5. [janestreet.com - Open Roles](https://www.janestreet.com/join-jane-street/open-roles/)

## Other roles at Jane Street

- [Quantitative Researcher](https://feeny.ai/job/quantitative-researcher-jane-street-hong-kong-cag69vejmhn7) — Hong Kong, Hong Kong
- [Quantitative Trader](https://feeny.ai/job/quantitative-trader-jane-street-hong-kong-1axfz61mtsy7) — Hong Kong, Hong Kong
- [Data Center Operations Engineer](https://feeny.ai/job/data-center-operations-engineer-jane-street-chicago-xqnz1qv6hqx0) — Chicago, IL
- [Data Center Operations Engineer](https://feeny.ai/job/data-center-operations-engineer-jane-street-austin-texas-k6xskp5en38t) — Austin Texas, United States
- [Trading Desk Operations Engineer](https://feeny.ai/job/trading-desk-operations-engineer-jane-street-london-england-8gkez5pp5khd) — London England, United Kingdom
- [Swag Program Manager](https://feeny.ai/job/swag-program-manager-jane-street-new-york-new-york-jvcang41v6kv) — New York New York, United States
- [Procurement Specialist](https://feeny.ai/job/procurement-specialist-jane-street-new-york-new-york-5f9c5qqwqrzq) — New York New York, United States
- [Recruiting Coordinator - Experienced Hire Recruiting, Technology](https://feeny.ai/job/recruiting-coordinator-experienced-hire-recruiting-technology-jane-street-hong-94p4bxrfy97k) — Hong Kong, Hong Kong
- [Trading Desk Operations Engineer](https://feeny.ai/job/trading-desk-operations-engineer-jane-street-hong-kong-mdbjjwr0c94g) — Hong Kong, Hong Kong
- [Software Engineer](https://feeny.ai/job/software-engineer-jane-street-singapore-5teqb9206e4q) — Singapore