Cyber Defense Engineer: Detection, Response & Automation

Company: Janestreet
Apply for the Cyber Defense Engineer: Detection, Response & Automation
Location: London
Job Description:

Jane Street in London is seeking a Cybersecurity Detection and Response Analyst to protect employees, data, and infrastructure from internet threats. This role blends incident response, detection engineering, and security automation, with hands-on development of tools and systems used by the SOC.

You’ll research threats, write detection logic, tune alerts for quality, and communicate security tradeoffs across teams.

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Posted: October 21st, 2026