Jane Street is a high-tech proprietary trading firm. As such, we have a wide variety of systems to deal with: trading systems, monitoring systems, support systems, high-performance computing clusters, file servers, application servers - just to mention a few. All of these systems need to be carefully managed, tuned, and monitored.
We try to automate much of our systems work, and not just because we're lazy. Automated deployment, centralized management, and obsessive monitoring are all core ongoing projects. We find that automation reduces our error rate and overall workload - plus, we think it's fun.
If you come to work with us on systems automation you can get involved in almost every facet of the company. Hardware to software, research to development, testing to production - we need your expertise everywhere. And the more you learn about our business, the more effective you will be.
We're hard working systems engineers, administrators and programmers, tasked with maintaining, improving, and sometimes transforming our core technology infrastructure. We're a tightly knit team of around 15 people spread across all three of our main offices.
Skills & Requirements
We're always looking for more people like us: a wide range of knowledge, the ability to dive deep in solving nuanced problems, good understanding of the fundamentals, passion for clean design, and a serious work ethic. We're constantly looking for new ways to automate and streamline management, reduce the scope and frequency of outages, and lessen the impact of failure. We also do our best to teach the people around us about the value of good design, techniques for debugging tricky issues in their applications, and how to leverage existing open source technology to improve what they build.
We love our jobs, and our group has very little turnover. We're in it for the long haul, and that gives us the opportunity to take our time building tools and systems in a careful and thoughtful manner.
We try to make quick decisions when called for, but at the same time we do our best to maintain a sense of humility about the limits of our own knowledge. The infrastructure we manage has billions of dollars a day flowing through it, so the stakes are high.
If you have experience with and interest in at least one of the following items in each of the below categories, you will fit right in with our group:
Python, Ruby, OCaml, Haskell, Scheme, Lisp, Erlang, Scala, Closure, Go
Linux (your choice of distribution), BSD (your choice of flavor)
Git, Mercurial (hg), Darcs, Bazaar (bzr)
Jails, Zones, LXC, Xen, KVM
If you understand how garbage collection works in your favorite language, have at least skimmed your favorite shell's man page all the way through, and keep your code/configs/scripts under version control you are probably a good candidate. Above all else, you should enjoy helping others solve their immediate problems and teaching them to fish in the future.
We run Linux and we write code from one-off scripts to full fledged systems as part of our job. We use OCaml, our favorite systems programming language, as well as Python, Ruby, and Bash when appropriate.
You don't need to know OCaml before you apply. Bring interest and enthusiasm for stretching yourself during the interview process, and we'll help with the rest.
Our group is hiring in New York, London, and Hong Kong.
About Jane Street
Jane Street is a proprietary trading firm that operates around the clock and around the globe. We bring a deep understanding of markets, a scientific approach, and innovative technology to bear on the problem of trading profitably in the world's highly competitive financial markets.
Founded in 2000, Jane Street employs over 300 people in offices in New York, London and Hong Kong. We are always recruiting top students and invite you to learn more about a career at Jane Street.
The atmosphere in our offices is informal and intellectual. There is a focus on education and improving one’s skillset. People learn about software and trading, both through formal classes and through the projects they're given. The work can be challenging, but you’ll see the practical impact of your efforts in quick and dramatic terms. The company is small enough that individuals have the freedom to get involved in many different areas of the business. Compensation is highly competitive, and there's a lot of room for growth.
How to apply
Interested candidates can apply through our webform, http://janestreet.com/apply