Jobs at Janestreet

London11 hours ago

You'll be paired with full-time employees who act as mentors, collaborating with you on real-world ML projects we actually need done. Many classes and activities are shared with our Software Engineering interns, while others...

London2 days ago

We're looking for someone who has a strong technical foundation, who is not afraid to build something themselves, who brings good taste to solving security problems, and who can reason about and explain the “why” behind security...

London2 days ago

The role combines both hands-on technical expertise to uncover and remediate vulnerabilities and people skills to partner with various teams across the firm, guide teams to analyze the security implications of design decisions...

London2 days ago

You will join an interdisciplinary team made up of several groups across Jane Street, including our Network, Server, Facilities Engineering, Market Data and Trading teams, along with some external data centre operators...

London2 days ago

You'll work closely with trading desks to identify Jane Street's data needs, evaluate datasets, and build pipelines that ingest and transform external data. You'll figure out what data means and how best to represent it. We build...

London2 days ago

We’re looking for a software engineer who is passionate about front-end development, user-interface design, and typed functional programming. You would take part in the design and implementation of our next-generation of...

London2 days ago

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...

London2 days ago

We are looking for people who are enthusiastic about our values: honesty, cooperation, intellectual curiosity, humility, and a quantitative approach to decision making and problem solving. To succeed in this role, they should be...

London2 days ago

We are looking for an engineer with experience in low-level systems programming and optimisation to join our growing ML team. Machine learning is a critical pillar of Jane Street's global business. Our ever-evolving trading...

London2 days ago

We are looking for a Research Engineer with robust experience in machine learning and strong mathematical foundations to join our growing ML team and to help drive the direction of our ML platform. Machine learning is a critical...

London2 days ago

About the Position We’re looking for smart and curious individuals to join our growing team and drive our ML work. On our Machine Learning team, you'll build the deep learning models that power our trading strategies, supported...

London2 days ago

About the Position We’re looking for a Market Data Specialist to join our Metadata team, working on improving and supporting our internal golden copy Security Master and Corporate Action Management systems. You’ll be responsible...

London2 days ago

You will find and resolve issues, plan and execute deployments, and improve systems where possible. In this role, we’ll look to leverage your advanced networking skills and security knowledge to: Work closely with Network...

London2 days ago

About the Position We are looking for a Senior Network Engineer who can help us scale our networks to meet increasing business demands, drive standardisation through automation and look for opportunities to leverage AI to improve...

London2 days ago

About the Position We're always hiring software engineers for all of our offices. Technology is at the core of how we approach our work, and engineers are intimately involved in every area of the business. We are big believers in...

London2 days ago

As a result, you’ll be most successful at Jane Street if you’re comfortable with that sort of ambiguity, and happy to roll your sleeves up and dig into the problem at hand, bringing whatever relevant skills you have to bear...