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Cybersecurity Analyst

Jane Street Group, LLC - Hong Kong, Hong Kong

Posted Mar 31, 2026

Benefits

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Weekend work
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About this role

Cybersecurity Analyst Hong Kong, Hong Kong About the position We're looking to add a passionate Cybersecurity Detection and Response Analyst to our Hong Kong office to help protect Jane Street's employees, data and infrastructure from the wilds of the internet. This is not (just) an eyes-on-glass, click ops role-our cybersecurity analysts are also responsible for developing the tools and systems we use to guard the firm. Think about this role as some combination of incident responder, detection engineer, security engineer, SOC automation engineer, threat hunter, threat modeler and security awareness engineer. Our SOC team is involved in engineering (e.g., we built our own SOAR, email content scanning system, the entire alerting stack and much more) and we handle the incident response and remediation when a threat is found. Our analysts research and prioritise what threats need to be monitored, hunt for them in our data, write code to detect them and constantly tune the detection to prioritise quality over quantity. We maintain full control over the alerts we respond to, and own all stages of the detection and response lifecycle. Our Cybersecurity team is a skilled group of programmers and security experts who are dedicated to keeping the firm safe. We consider ourselves to be tapped into developments in the broader cybersecurity space, and can tell the difference between the latest cool hack by security researchers and what actually matters in our day-to-day. In this role, you'll carefully consider the context of our decisions as we think about the tradeoffs

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