J

Jane Street

Trades stocks, bonds and funds as a market maker

Cybersecurity Engineer - Detection and Response

Security Operations & Incident ResponseConfirmed live in the last 24 hours
Full-timeHong KongNo salary listedIn-person

About the Job

Requirements

  • A bachelor's degree in computer science, engineering, or information systems, or equivalent experience, is preferred.
  • Follow cybersecurity news closely.
  • Write clear, general scripts that can integrate into existing tooling using a fully featured programming language.
  • Manage code and configuration files in version control and have working knowledge of an editor.
  • Be familiar with threat modelling and clearly communicate the trade-offs of cybersecurity decisions to internal stakeholders.
  • Explain personal cybersecurity decisions and the reasoning behind them.
  • Adapt to changing scenarios and make challenging decisions under pressure.
  • Speak English fluently.
  • Programming experience is a plus.

Responsibilities

  • Develop and use monitoring tools to protect the firm’s employees, data, and infrastructure.
  • Handle incident response and remediation when a threat is found.
  • Conduct methodical, unstructured investigations to locate and repair the source of security issues.
  • Provide operational coverage.
  • Work on projects to improve detection capabilities, automation, and efficiency.
  • Perform threat hunts.
  • Promote cybersecurity best practices across the firm and help colleagues adopt good personal cybersecurity hygiene.
  • Learn from colleagues and share that learning with new engineers.

Desired Qualifications

  • Avidly follow cybersecurity news.
  • Programming experience.

About the Company

Jane Street

Trades stocks, bonds and funds as a market maker

Jane Street trades stocks, bonds, options, and exchange-traded funds with its own money as a market maker, a firm that constantly quotes prices to buy and sell so other investors can trade whenever they want. In 2025, it made more money from trading than JPMorgan Chase or Goldman Sachs, the biggest trading banks on Wall Street. Its traders, researchers, and engineers build computer-driven strategies that trade on exchanges and other venues around the world, and it also trades directly with large institutional clients. It earns the small gap between buying and selling prices across huge volumes, plus gains on positions it holds for minutes to days. Jane Street was founded in 2000 and is based in New York.

Company size
1,001-5,000
Company stage
Debt Financing
Total funding
$90.6B
Headquarters
New York City, New York
Founded
2000

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