- Company: Janestreet
- Location: London, UK, UK
- Salary: Pay not listed
Janestreet at a glance
janestreet.com- Founded 2013
Front End Software Engineer at Janestreet in London, UK, UK - Full Time, On-Site
About This Position
We are seeking a passionate front-end software engineer to join our team and contribute to the design and development of next-generation browser-based tools for operating our trading infrastructure. As an integral part of this role, you will be responsible for maintaining high user experience standards while creating flexible and powerful tools that cater to expert users.
Day-to-Day Responsibilities
Your day-to-day tasks will include:
- Designing and implementing sophisticated UIs in the browser with a focus on elegance, usability, and polish.
- Creating libraries and abstractions to capture common interaction patterns and improve our development practices firm-wide.
- Collaborating closely with designers and backend developers to ensure seamless integration of user interfaces.
Skills & Qualifications
We are looking for a candidate who possesses the following skills and experience:
- A strong background in web technologies, including browser fundamentals like CSS and DOM, as well as an understanding of UI frameworks such as Vue, Angular, React, and Flutter.
- Practical experience building sophisticated UIs in the browser with a passion for detailed polishing to ensure high usability.
About the Company
Janestreet is a leading financial services firm based in London, UK, UK. Our team of experts focuses on creating cutting-edge tools that empower our users to operate complex trading infrastructures efficiently and effectively. We value innovation, collaboration, and a commitment to excellence.
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What people say about Janestreet
Recent news
- Secretive Wall Street Powerhouse Jane Street Seizes the AI Spotlight - WSJ
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- 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:
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
- Adaptability
- Intellectual Curiosity
- Attention to Detail
- Dependability
Source: O*NET Work Styles (Distinctiveness Rank).
Typical preparation needed: Job Zone 3: Medium Preparation Needed. Most occupations in this zone require training in vocational schools, related on-the-job experience, or an associate's degree. — 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
- I was a software engineer who couldn't get excited about AI. Now I'm studying to be a nurse. - Business Insider
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 Front End Software 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 (252 words)
Facts above come from this job record on Get A Job.AI — not copied from third-party review sites.
Typical work in Sr. Front End Software 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.
- Write supporting code for Web applications or Web sites.
- Design, build, or maintain Web sites, using authoring or scripting languages, content creation tools, management tools, and digital media.
- Back up files from Web sites to local directories for instant recovery in case of problems.
- Select programming languages, design tools, or applications.
- Evaluate code to ensure that it is valid, is properly structured, meets industry standards, and is compatible with browsers, devices, or operating systems.
- Develop databases that support Web applications and Web sites.
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
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5 other opening(s) at Janestreet on Get A Job.AI
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