Ground every answer in facts on this page and the original listing. We never invent Glassdoor-style reviews or salaries that are not in our data.
Strong fit if you want hands-on cyber defense in a quant trading firm in London (non-remote), with comfort in systems risk, controls testing, and clear incident follow-through—not generalist IT alone.
As a Cybersecurity Analyst at Jane Street in London, a typical day maps to protecting trading and research systems: watch threat/virus intel and patch posture; encrypt traffic and maintain network boundaries; run risk assessments and control tests; update access and security configs; review violations and coach owners so incidents do not repeat—aligned with O*NET 15-1212.00 tasks in a high-trust finance tech environment.
Build depth in risk assessment, secure transmission (encryption, firewalls), monitoring/response, access control hygiene, and security procedure coaching. No certification family or priced resources were provided in CERTS—skip paid cert claims until you have an official list.
No. The listing is London-based with remote set to off-site work not indicated.
Protecting systems and data: monitoring threats, encryption/boundaries, risk tests, access updates, and reviewing security violations—see O*NET Cybersecurity Analyst tasks.
Hacker News threads on “Introducing Incremental” and recent news links (WSJ AI coverage, hiring/culture pieces) are in the source set—read them directly rather than third-party review sites.
Public-domain labor data — prepare examples for 2–3 of these.
Website: janestreet.com
Public cache only — not an employee review.
Cybersecurity Analyst at Janestreet in London - Full Time, No Remote The Opportunity We're seeking a passionate Cybersecurity Detection and Response Analyst to join our London office. This role is crucial for protecting Jane Street’s employees, data, and infrastructure from online threats. You will not only respond to incidents but also develop the tools and systems we use to safeguard the firm. Responsibilities Act as an incident responder, detection engineer, security engineer, SOC automation engineer, threat hunter, threat modeler, and security awareness engineer. Research and prioritize threats for monitoring, hunt for them in our data, write code to detect them, and continuously refine the detection process. Maintain full control over the alerts we respond to and own all stages of the detection and response lifecycle. Work on engineering projects such as building SOAR systems, email content scanning, alerting stacks, and more. Qualifications Experience in cybersecurity with a focus on detection and response. Proficiency in programming languages relevant to cybersecurity (e.g., Python, PowerShell). A strong understanding of security tools and systems. Ability to write code for threat detection and automation. Excellent analytical and problem-solving skills. Working at Janestreet Our Cybersecurity team comprises skilled programmers and security experts dedicated to keeping the firm safe. We stay informed about developments in cybersecurity, distinguishing between significant research advancements and practical applications for our daily work. You will be part of a dynamic environment where you can apply a methodical approach to resolving cybersecurity issues. Next Steps To apply, complete your application directly on this page, or you'll be redirected to the employer's application platform to finish submitting there.
Generated for personal interview prep · 2026-08-03 UTC · getajob.ai