- Company: Janestreet
- Location: London, UK, UK
- Salary: Pay not listed
Janestreet at a glance
janestreet.com- Founded 2013
Jane Street is a quantitative trading firm (janestreet.com). Recent coverage frames it as a secretive Wall Street powerhouse with growing AI attention (WSJ), plus industry notes on culture/hiring and market activity.
Cybersecurity Engineer at Janestreet in London, UK, UK - Full Time, No Remote
Role Overview
We are seeking a full-time Cybersecurity Engineer to join our team in London, UK, UK. 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.You’ll finish your application on the employer’s website. We don’t ask for a resume on this page.
Explore Janestreet online
What people say about Janestreet
Public technical discussion on Hacker News centers on Jane Street’s open-source work around Incremental, suggesting engineering-heavy interest rather than generic employer-review chatter.
Recent news
- Secretive Wall Street Powerhouse Jane Street Seizes the AI Spotlight - WSJ
- Morning Coffee: The Jane Street dress code & the humans it hires now. Private equity pay when there are no exits - eFinancialCareers
- Did Jane Street See The Terra Crash Coming? Lawsuit Claims Firm Sold ‘Mere Hours’ Before Collapse - Stocktwits
- Is the Texas Stock Exchange the Biggest Capital Markets Event in Decades? TXSE Goes Live - Disruption Banking
- Jane Street Signs $6 Billion AI Cloud Agreement with CoreWeave - CoreWeave
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:
Role is on-site in London, UK, capital of England and the UK (~9.1M residents in 2024; metro ~15.4M). The city sits on the Thames in southeast England—dense finance and tech hiring, not remote.
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
Per O*NET 15-1212.00, core tasks include safeguard plans, virus/threat monitoring, encryption/firewalls, risk tests, access-control updates, and violation follow-up. At a quant firm, that maps to protecting trading and research infrastructure.
Traits that fit this role
- Initiative
- Innovation
- Perseverance
- Adaptability
- 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
- The Great Coding Reset: How AI is changing software engineering - Business Insider
- ‘AI code apocalypse’ hasn’t hit engineers as hard as the industry may think - IT Brew
- A former Oracle engineer on an H-1B visa says AI and tech layoffs pushed him into constant career-prep mode - Business Insider Africa
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
Build the skills for this role
Build fundamentals, then security depth:
- freeCodeCamp — Full Stack curriculum (free)
- Saylor Academy — Computer Science courses (free)
- CS50 (Harvard, via edX) (free to learn)
- Microsoft Learn — developer training paths (free to learn)
Free & low-cost learning resources
- freeCodeCamp — Full Stack curriculum (free)
- Saylor Academy — Computer Science courses (free)
- CS50 (Harvard, via edX) (free to learn)
- Microsoft Learn — developer training paths (free to learn)
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, UK, and engineering-forward firms. Thin public review data—judge culture from primary sources and the interview process.
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 Cybersecurity 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 (275 words)
Facts above come from this job record on Get A Job.AI — not copied from third-party review sites.
Typical work in Cybersecurity 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.
- Develop plans to safeguard computer files against accidental or unauthorized modification, destruction, or disclosure and to meet emergency data processing needs.
- Monitor current reports of computer viruses to determine when to update virus protection systems.
- Encrypt data transmissions and erect firewalls to conceal confidential information as it is being transmitted and to keep out tainted digital transfers.
- Perform risk assessments and execute tests of data processing system to ensure functioning of data processing activities and security measures.
- Modify computer security files to incorporate new software, correct errors, or change individual access status.
- Review violations of computer security procedures and discuss procedures with violators to ensure violations are not repeated.
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
6 other opening(s) at Janestreet on Get A Job.AI
- Machine Learning Researcher
- Machine Learning Performance Engineer
- Machine Learning Engineer
- IT Security Engineer
- Front End Software Engineer
- Data Engineer
Occupation family: Cybersecurity Engineer
Research this employer
Pull public facts we already cached for this company (Wikipedia, news, discussions). We never invent Glassdoor-style ratings.
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