Jane Street is hiring a IT Security Engineer in IT and Systems Engineering — New York, New York, United States. The overview below is synthesized from the employer posting on janestreet.com: factual requirements and scope are preserved, but prose is rewritten with editorial context. Verify details and apply via the employer link.
About the Position
Company context from the listing:
The listing frames the IT Security Engineer at Jane Street as a hands-on product role. 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.
- 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
Company context from the listing:
- 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 agency-partnerships@janestreet.com.
Build a standout application
For the IT Security Engineer at Jane Street, reviewers look for concise evidence over buzzwords. Mirror the language of the posting sparingly, quantify support or delivery outcomes, and show how you handled ambiguity, time-zone collaboration and user empathy. Keep your resume to impact, keep your cover note to one page, and link to artifacts — tickets resolved, docs shipped, dashboards owned — that prove you can operate in a fast-moving Web3 team. Prepare to discuss a time you turned a confusing user report into a clear fix and how you measure quality in support and operations.
Web3 hiring values reliability: on-time follow-through, clear writing, and a track record of improving runbooks and tooling. Treat the application as a work sample. For interviews, be ready to walk through how you prioritize across time zones, handle a difficult user, and decide when to escalate versus resolve directly. Show how you document decisions so the next teammate benefits.
In a distributed Web3 org, trust builds through written clarity. Use the cover note to demonstrate it. Add links to public work, keep formatting scannable, and close with a clear ask. Hiring managers skim — make impact obvious in the first half-page.
Career growth in Web3 rewards continuous learning. Follow protocol changelogs, practice with testnets, and contribute to open issues. Small, consistent contributions compound into credibility more than one-off credentials.