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.
Be ready on risk assessment, encryption, firewalls, access control, incident review, and how you’d protect high-stakes compute/data environments. Expect technical depth and clear reasoning; prepare concrete examples of threat monitoring and hardening.
Strong fit if you like rigorous systems security in finance tech, on-site London, and engineering-forward firms. Thin public review data—judge culture from primary sources and the interview process.
As a Cybersecurity Engineer at Jane Street in London, expect work aligned with safeguarding systems and data: risk assessments and security tests; encryption and network controls; monitoring threats and hardening protections; access and config changes; reviewing incidents and tightening procedures—in a trading-technology environment where uptime and confidentiality matter.
Build fundamentals, then security depth:
No—the listing is London with remote set to off.
O*NET security tasks: protection plans, threat monitoring, encryption/firewalls, risk tests, access changes, and procedure follow-up.
Use the listed free/free-to-learn paths: freeCodeCamp, Saylor CS, CS50, and Microsoft Learn.
Public-domain labor data — prepare examples for 2–3 of these.
Website: janestreet.com
Public cache only — not an employee review.
Cybersecurity Engineer at Janestreet in London - Full Time, No Remote Role Overview We are seeking a full-time Cybersecurity Engineer to join our team in London. This role involves protecting our company's people, data, and infrastructure from cyber threats. You will work on firm-wide security defenses, provide expert advice to other groups, lead cybersecurity awareness initiatives for employees, and handle incident response responsibilities. Core Duties Contribute to the development of comprehensive firm-wide security measures. Provide technical expertise and guidance to various departments on cybersecurity best practices. Lead and participate in employee cybersecurity awareness programs. Respond to and manage incidents, conducting thorough analysis and implementing corrective actions as needed. Requirements Strong scripting or programming skills with experience in automating tasks using real programming languages. Able to manage code and configurations in version control systems. Familiarity with a preferred text editor (though the specific one is not critical). A balanced approach to cybersecurity, understanding trade-offs and context. Practicing good personal cybersecurity hygiene, such as using password managers or comparable solutions, and able to explain your choices. About Janestreet Janestreet is a leading financial services company dedicated to providing innovative technology solutions. Our team of experts works collaboratively to ensure the security and integrity of our operations. Applying for This Role We are looking for someone who has a strong technical foundation, is not afraid to build tools themselves, brings good taste to solving security problems, and can explain the rationale behind security practices. If you meet these criteria, we would love to hear from you. 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