Among computer occupations, all other, AI is already used for a large share of the tasks. Measured exposure for computer occupations, all other: 31% (high).

Share of this job’s tasks that AI is already used for at work, from real usage. It is not a forecast of job loss, and a low number means no use seen yet. Source: Anthropic Economic Index.

Check how this applies to your own job

Skills this job asks for

Say which you have and which you want to build. We use it to match you to jobs like this one.

About the job

About the Position

We are looking for an enthusiastic, motivated, and technically curious individual—with an IT operations focus—to join Jane Street’s IT Security team, and contribute to securing our firm's IT computing platforms and identities. This will involve technical hands-on work, creative problem-solving, and collaboration across teams.

Additional responsibilities of this role will include:

Deploying, documenting, and implementing security controls at scale

Acting as a key component to our Vulnerability Management program to ensure we’re detecting and mitigating vulnerabilities

Providing guidance and support to the broader IT department and IT Operations team as security incidents arise

Developing both technical and non-technical solutions in collaboration with engineering teams to address security concerns

Contributing to the development of our team’s operational playbooks and procedures

We’re looking for someone who loves collaborating alongside others, enjoys triaging complex problems, and is able to delegate and escalate tasks effectively. This role is anything but siloed—you will be a key communicator, translating complex technical issues for various audiences while maintaining a high level of technical accuracy.

While we’re open to individuals from a range of backgrounds, someone who’s worked in a code-driven or declarative environment and has hands-on experience with security incident response is preferred.

About You

Have 5-7 years of experience as a security or operations engineer, with a technical background rooted in Windows

Can maintain, support, and administer Windows, macOS, and hybrid identity platforms

Have demonstrated knowledge of typical attack patterns, adversary methods, and protective technologies utilized to mitigate related risks

Strong troubleshooter and debugger; familiar with trending and log analysis, and have hands-on experience using system performance tools to identify production disruptions

Can deploy and implement Endpoint Security controls in highly available environments (e.g., application control, log aggregation, host-based firewalls, EDR, disk encryption)

Can use PowerShell scripting to automate security tasks and to analyze data at an intermediate level

Excellent written and verbal communicator

Able to navigate ambiguity and changing priorities with confidence

Collaborative and approachable; eager to be a team player

Having knowledge of macOS security fundamentals is a plus

If you're a recruiting agency and want to partner with us, please reach out to agency-partnerships@janestreet.com.