- Company: Janestreet
- Location: London, UK, UK
- Salary: Pay not listed
Janestreet at a glance
janestreet.com- Founded 2013
IT Security Engineer at Janestreet in London, UK, UK
Position Summary
We are seeking a highly skilled Infrastructure Security Engineer with extensive experience in Windows engineering and modern platform security controls to join our global team. This role requires strong judgment and the ability to prioritize complex remediation efforts, focusing on technical advice and decision-making for strategic security initiatives.
Key Responsibilities
- Proactively propose, design, test, implement, and document strategic security controls across IT platforms.
- Coordinate and deliver security solutions while identifying opportunities to automate intelligent workflows.
- Secure internal IT and remote working platforms through hands-on technical work, consultancy, and security influence within the IT team.
- Build scalable security controls, investigate emerging threats, develop new security tooling, and drive vulnerability management initiatives.
Requirements
- Strong Windows engineering background with practical exposure to modern platform security controls.
- Experience in writing code and automation (e.g., PowerShell modules, Python) and integrating security products via APIs.
- Ability to prioritize complex remediation efforts and make strategic decisions for the group.
- Proven experience in building scalable security controls and driving vulnerability management initiatives.
More About Janestreet
Janestreet is a highly dedicated team of engineers who monitor and manage our environment across a physical/virtual computing landscape spanning three continents. Your analytical thinking and expertise will be invaluable as we support the daily work of our colleagues and keep our systems secure.
How to Apply
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What people say about Janestreet
Recent news
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Aggregated from public discussions and news; opinions are the authors’ own.
Working in London, UK, UK
Weather right now in London, UK, UK: checking… · Local time: · Air quality: · Daylight: · UV index: · Wind: · Pollen:
London, UK is the capital and largest city of England and the United Kingdom, with a population of 9.1 million people in 2024. Its wider metropolitan area is the largest in Western Europe, with a population of 15.4 million. London, UK stands on the River Thames in southeast England, at the head of a 50-mile (80 km) tidal estuary down to the North Sea, and has been a major settlement for nearly 2,000 years. Its ancient core and financial centre, the City of London, UK, was founded by the Romans as Londinium and has retained its medieval boundaries. The City of Westminster, to the west of the City of London, UK
England is a country that is part of the United Kingdom. It is located on the island of Great Britain, of which it covers about 62%, and more than 100 smaller adjacent islands. England shares a land border with Scotland to the north and another land border with Wales to the west, and is surrounded by the North Sea to the east, the English Channel to the south, the Celtic Sea to the south-west, and
- Elevation 18m (59 ft)
Source: Wikipedia (state)
About this role & career path
Traits that fit this role
- Innovation
- Perseverance
- Adaptability
- Stress Tolerance
- Achievement Orientation
Source: O*NET Work Styles (Distinctiveness Rank).
Typical preparation needed: Job Zone 4: Considerable Preparation Needed. Most of these occupations require a four-year bachelor's degree, but some do not. — via O*NET
Industry news
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Source: O*NET (public-domain bulk data)
Salary & compensation
Workers in Computer & Mathematical occupations earn a national median of $98,769 — via US Census ACS / Data USA
Job details above are provided by the employer/source. The sections on this page are compiled from public data sources with AI assistance.
Accommodations: if you need a workplace accommodation to apply for or perform this job, see ADA.gov or EEOC.gov for guidance on your rights and how to request one.
Listing facts
- Role IT Security Engineer
- Employer Janestreet
- Location London, UK, UK
- Type Full Time
- Pay (from listing) Pay not listed
- Posted August 2, 2026
- Apply by September 1, 2026
- Overview Full job description on this page (247 words)
Facts above come from this job record on Get A Job.AI — not copied from third-party review sites.
Typical work in IT Security Engineer
Independent occupational context from O*NET (U.S. public-domain labor data). This is about the occupation, not a rewrite of this employer's posting.
- Assess the quality of security controls, using performance indicators.
- Conduct investigations of information security breaches to identify vulnerabilities and evaluate the damage.
- Coordinate documentation of computer security or emergency measure policies, procedures, or tests.
- Coordinate monitoring of networks or systems for security breaches or intrusions.
- Coordinate vulnerability assessments or analysis of information security systems.
- Develop information security standards and best practices.
Public discussions & open sources
Attributed public threads and profiles — not employee reviews or star ratings.
- Hacker News — Introducing Incremental
- Hacker News — Introducing Incremental
- Hacker News — Introducing Incremental
- Hacker News — Introducing Incremental
Cached public sources (Hacker News, Dev.to, GitHub, etc.).
Employer website
Explore related openings
5 other opening(s) at Janestreet on Get A Job.AI
- Data Engineer
- Data Centre Engineer
- Cybersecurity Engineer
- Cybersecurity Analyst
- Front End Software Engineer
Occupation family: IT Security Engineer
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