We are looking for an IT Security Engineer with a strong Windows engineering background and practical exposure to modern platform security controls to join a global team dedicated to securing Jane Street’s IT platforms. In this role, you will help secure our internal IT and remote working platforms through a combination of hands-on technical work, consultancy, and security influence to the wider IT team.
The ideal candidate will demonstrate strong judgment and discerning taste in prioritizing potentially complex and extensive remediation efforts. We’ll lean on you to suggest where to focus our mitigation efforts, and to provide both technical advice and decision making on behalf of the group where needed. This role will encompass a range of responsibilities, including:
- Proactively proposing, designing, testing, implementing, and documenting strategic security controls
- Coordinating and delivering security solutions across our IT platforms while identifying opportunities to further automate intelligent workflows
- Building security controls that scale, investigating emerging threats, developing new security tooling, and driving vulnerability management initiatives
This position sits within our IT Engineering group, a highly dedicated team of engineers who monitor and manage our environment across a physical/virtual computing landscape spanning three continents. Your analytical thinking and expertise will be invaluable as we support the daily work of our colleagues and keep our systems operating at the highest standard.
About You- Proficient in securing Windows OS platforms and resolving complex technical issues in a fast-moving environment
- Have hands-on experience utilizing integrated security technologies for safeguarding Windows operating systems, including application control, host-based firewalls, auditing and event monitoring, and disk encryption
- Skilled in the administration of endpoint security and vulnerability management solutions, including antivirus, anti-malware, EDR, vulnerability scanning, and patch management
- Knowledgeable about security best practices, including operating system hardening, privileged access management, and vulnerability mitigation
- Have an understanding of common threat tactics, techniques, and procedures (TTPs), and effective countermeasures
- Well-versed in Windows core infrastructure services (AD/EntraID, PKI)
- Eager to produce scalable and repeatable security practices through automation
- Have an understanding of security tooling and APIs
- Take a flexible, reliable, and highly collaborative approach to your work
- An ability to script in PowerShell or other languages is strongly desired
If you're a recruiting agency and want to partner with us, please reach out to [email protected].
Skills Required
- Strong Windows engineering background and proficiency securing Windows OS platforms
- Hands-on experience with application control, host-based firewalls, auditing and event monitoring, and disk encryption
- Administration of endpoint security and vulnerability management solutions (antivirus, anti-malware, EDR, vulnerability scanning, patch management)
- Knowledge of operating system hardening, privileged access management, and vulnerability mitigation
- Understanding of common threat tactics, techniques, and procedures (TTPs) and countermeasures
- Experience with Windows core infrastructure services (Active Directory / EntraID, PKI)
- Ability to produce scalable, repeatable security practices through automation
- Understanding of security tooling and APIs
- Ability to script in PowerShell or other languages
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.
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Healthcare Strength — Medical, dental, and vision coverage are offered at no cost for employees and dependents, with robust onsite care including primary care, physical therapy, and mental‑health therapy. Private onsite gyms and counseling resources further reinforce the health focus.
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Parental & Family Support — Fully paid parental leave for all parents, with additional time for birth parents, is highlighted alongside expanded fertility benefits and well‑equipped nursing suites. These offerings position family support as a core element of the package.
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Wellbeing & Lifestyle Benefits — Daily free meals and snacks, private onsite gyms, recreation spaces, and rich learning programs (including tuition reimbursement and company classes) elevate day‑to‑day quality of life. Onsite medical suites and speaker series add to the lifestyle and development mix.
Jane Street Insights
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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