Jobs / United Kingdom / Jane Street Group LLC

Infrastructure Security Engineer

Jane Street Group LLC · 🇬🇧 London, England, United Kingdom

Sponsorship verdict

No sponsorship evidence yet

No government record and no wording either way. Not a refusal — ask the recruiter.

  • No government sponsor record hereNo government sponsor record covers this employer in this country.
  • The posting doesn’t mention sponsorshipSilence isn’t a refusal — ask the recruiter before investing much time.
  • Can’t check pay against the visa rulesNo salary stated. UK Skilled Worker visa needs at least £41,700 a year (new-entrant (under 26, recent Student/Graduate visa) or STEM PhD: £33,400). Source: https://www.gov.uk/skilled-worker-visa/when-you-can-be-paid-less, rules effective 2025-07-22.
  • Confirmed live todayWhen a source last listed this job as open.

A verdict summarises public evidence; it is not legal advice and never a guarantee — the employer and the immigration authority decide. Sign in to factor in where you can already work.

Start free →

Or apply yourself on the official page →

Why not apply?

Sponsorship unknown

No register record and no sponsorship wording in the posting. Worth asking the employer before investing significant time.

SponsorApply flags time-wasters so your applications go where they can land. These come from the posting's own wording — read the original listing to confirm. See better-fit alternatives →

Sponsor Radar — Jane Street Group LLC

Sponsorship not verified for this country

No government sponsor record covers this employer in this country.

Past sponsorship or register membership never guarantees sponsorship for this vacancy or for you. Full Sponsor Radar for Jane Street Group LLC →

About the role

About the Position We are looking for an Infrastructure Security Engineer with a strong cross platform 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’ll need strong judgement and discerning taste to prioritise potentially complex and extensive remediation efforts. You'll help decide where we focus our resources, providing technical advice and making decisions on behalf of the group where needed. We're looking for builders: people who spend their time writing code and automation (e.g. PowerShell modules, Python) and integrating security products via their APIs, rather than primarily configuring and operating the tools themselves. In this role, you will proactively propose, design, test, implement and document strategic security controls. You will coordinate and deliver security solutions across our IT platforms while identifying 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. This role will encompass a range of responsibilities, including building security controls that scale, investigating emerging threats, developing new security tooling and 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 • Have 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 • Understand 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 • Understand security tooling and APIs • Flexible, reliable and highly collaborative • Proven experience automating workflows in PowerShell or other scripting languages • Fluent in English If you're a recruiting agency and want to partner with us, please reach out to agency-partnerships@janestreet.com .

View the official posting →

Source: Greenhouse (employer board) First seen: 2026-10-15 Last confirmed: 2026-10-15 How our data works → Report this job

Similar opportunities