IT Security Engineer
Jane Street
London, United Kingdom
Permanent
Full time
Competitive
About the Position
We are looking for an IT Security Engineer with a strong Windows engineering background and practical exposure to modern platform security controls to help our global team secure Jane Street's IT platforms. In this role you will proactively propose, design, test, implement and document strategic security controls, coordinate and deliver security solutions across our IT platforms, and identify opportunities to further automate intelligent workflows. You will help secure internal IT and remote working platforms through a combination of hands‑on technical work, consultancy and security influence to the wider IT team.
* Building security controls that scale
* Investigating emerging threats
* Developing new security tooling
* Driving vulnerability management initiatives
This position sits within our IT Engineering group, a highly dedicated team of engineers who monitor and manage our environment across a physical/virtual computing landscape that spans three continents. Your analytical thinking and expertise will be invaluable as we support the daily work of our colleagues and keep our systems operating at the highest standard.
About You
* Proficient in securing Windows OS platforms and resolving complex technical issues in a fast‑moving environment
* Hands‑on experience utilising integrated security technologies for safeguarding Windows operating systems, including application control, host‑based firewalls, auditing and event monitoring and disk encryption
* Skilled in administering endpoint security and vulnerability management solutions, including antivirus, anti‑malware, EDR, vulnerability scanning and patch management
* Knowledgeable about security best practices, including operating system hardening, privileged access management and vulnerability mitigation
* Understanding of common threat tactics, techniques and procedures (TTPs) and effective countermeasures
* Well‑versed in Windows core infrastructure services (AD/EntraID, PKI)
* Eager to produce scalable and repeatable security practices through automation
* Understanding of security tooling and APIs
* Flexible, reliable and highly collaborative
* Proven experience automating workflows in PowerShell or another scripting language
* Fluent in English
If you're a recruiting agency and want to partner with us, please reach out to agency-partnerships@janestreet.com.
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