New York, New York, United States · On-site
We are looking for an engineer with experience in low-level systems programming and optimization to join our growing ML team. Machine learning is a critical pillar of Jane Street's global business. Our ever-evolving trad…
Skills: Machine Learning, CUDA, PTX, SASS, Tensor Cores
London, England, United Kingdom · On-site
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 trad…
Skills: Machine Learning, CUDA, Systems Programming, Performance Optimization, PTX
Hong Kong, Hong Kong Island, Hong Kong S.A.R. · On-site
About the Program Our goal is to give you a real sense of what it’s like to work at Jane Street full time. Over the course of your internship, you will explore ways to approach and solve exciting problems within your fie…
Skills: IT Operations, Desktop Engineering, Network Support, Windows Operating System, Linux
London, England, United Kingdom · On-site
We are looking for an 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…
Skills: Machine Learning, Software Engineering, Mathematics, Optimization Theory, Linear Algebra
London, England, United Kingdom · On-site
About the Position We are looking for a Network Analyst who can provide support as our team builds automation and DevOps-driven solutions – encouraging creativity in leveraging AI wherever possible. Our global network in…
Skills: Network Analysis, LAN, WAN, OSPF, BGP
Hong Kong, Hong Kong Island, Hong Kong S.A.R. · On-site
About the Position We are looking for a Recruiter to support our experienced hire team as we find, interview, and hire non-technical professionals in our Asia offices. Your impact will be significant, as in many ways you…
Skills: Recruitment, Candidate Sourcing, Pipeline Management, Financial Services, Stakeholder Management
Hong Kong, Hong Kong Island, Hong Kong S.A.R. · On-site
About the Position We are looking for an experienced Data Centre Engineer who can help our team keep Jane Street’s data safe and accessible around the clock, which will involve a mix of hands-on work in our data and colo…
Skills: Data Centre Operations, Cabling Methodology, Vendor Management, Linux, Networking Fundamentals
Hong Kong, Hong Kong Island, Hong Kong S.A.R. · On-site
About the Position We are looking for a financing professional to support and develop Jane Street's APAC financing capabilities across multiple asset classes. To thrive in this role, you’ll need prior experience developi…
Skills: Securities financing, Prime brokerage, Asian market microstructure, Stock loan markets, Risk management
London, England, United Kingdom · On-site
About the Position We are looking for a Data Engineer to turn messy, real-world datasets into reliable inputs for research and trading. Jane Street depends on data from a wide variety of sources to understand markets and…
Skills: Python, SQL, Pandas, Polars, Data Engineering
Hong Kong, Hong Kong Island, Hong Kong S.A.R. · On-site
About the Position We are looking for an experienced Macro Analyst to help our global trading team develop innovative ways to overlay quantitative and fundamental analysis onto Jane Street’s core trading strategies. Our …
Skills: Macro Analysis, Quantitative Analysis, Fundamental Analysis, Probability, Statistical Insights
Hong Kong, Hong Kong Island, Hong Kong S.A.R. · On-site
About the Position We are hiring Production Engineers in our Hong Kong office. Jane Street Production Engineers are software developers who spend time both developing software and also providing high-quality support for …
Skills: Software Development, Ocaml, Functional Programming, System Architecture, System Monitoring
New York, New York, United States · On-site
$200k–$300k/yr
About the Position We're looking for an experienced Software Engineer with deep macOS software experience who is also willing to work in other languages and on other platforms. In this role, you’ll help build and maintai…
Skills: MacOS, Swift, Objective-C, SwiftUI, AppKit
Singapore, Singapore · On-site
About the Position Linux Engineers work with the critical infrastructure underlying the rest of the firm’s technology. Members of this group are hard-working Systems Engineers, Administrators and Programmers, tasked with…
Skills: Linux, Unix, Systems Programming, C, Shell Scripting
New York, New York, United States · On-site
About the Position We're looking for Software Engineers with a background in programming languages to join one of our PL-focused teams at Jane Street. Programming languages work at Jane Street spans a wide variety of dif…
Skills: Programming language design, Type systems, Compilers, Optimization, Code generation
Hong Kong, Hong Kong Island, Hong Kong S.A.R. · On-site
About the Position We are looking for a qualified accountant to join our Financial Reporting team. In this role, you will primarily maintain the books and records for our APAC businesses and work with our regional and gl…
Skills: Financial Reporting, Accounting, IFRS, US GAAP, Account Reconciliation
London, England, United Kingdom · On-site
About the Position Jane Street is hard at work building OxCaml, a branch of OCaml with a variety of extensions to support performance engineering. But designing and implementing the language is only half the battle: we n…
Skills: Ocaml, Oxcaml, Software engineering, Curriculum development, Technical writing
New York, New York, United States · On-site
$150k–$175k/yr
About the Position We are looking for skilled analysts to join our Finance group. Our team, like the rest of Jane Street, are critical thinkers and problem solvers. We are ultimately responsible for managing the capital …
Skills: Financial analysis, Capital management, Data analysis, Python, SQL
Hong Kong, Hong Kong Island, Hong Kong S.A.R. · On-site
About the Position We are looking for an Exotic Options Trader based in Hong Kong to work closely with our local and global options teams. In this role, you'll price complex derivatives, identify trading opportunities, a…
Skills: Exotic options trading, Quantitative pricing, Derivatives, Market intuition, Python
Hong Kong, Hong Kong Island, Hong Kong S.A.R. · On-site
About the Position Linux Engineers work with the critical infrastructure underlying the rest of the firm’s technology. Members of this group are hard-working Systems Engineers, Administrators and Programmers, tasked with…
Skills: Linux, Unix, Systems Programming, C, Shell Scripting
Hong Kong, Hong Kong Island, Hong Kong S.A.R. · On-site
About the Position We are looking for an HR Partner to join our team in Hong Kong across a broad range of strategic and operational responsibilities. Your ability to pivot from strategic thinking to practical implementat…
Skills: Human Resources, Strategic Planning, Employee Relations, Performance Management, Coaching
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Optimize the performance of machine learning models for both training and inference across the company's trading environment. Implement a whole-systems approach to improve throughput and latency, considering storage, networking, and GPU-level hardware.
Requires deep expertise in low-level systems programming, CUDA, and GPU architecture including PTX and memory hierarchies. Candidates should have experience debugging performance end-to-end and working with distributed training algorithms.
We are looking for an engineer with experience in low-level systems programming and optimization to join our growing ML team.
Machine learning is a critical pillar of Jane Street's global business. Our ever-evolving trading environment serves as a unique, rapid-feedback platform for ML experimentation, allowing us to incorporate new ideas with relatively little friction.
Your part here is optimizing the performance of our models – both training and inference. We care about efficient large-scale training, low-latency inference in real-time systems, and high-throughput inference in research. Part of this is improving straightforward CUDA, but the interesting part needs a whole-systems approach, including storage systems, networking, and host- and GPU-level considerations. Zooming in, we also want to ensure our platform makes sense even at the lowest level – is all that throughput actually goodput? Does loading that vector from the L2 cache really take that long?
If you’ve never thought about a career in finance, you’re in good company. Many of us were in the same position before working here. If you have a curious mind and a passion for solving interesting problems, we have a feeling you’ll fit right in.
There’s no fixed set of skills, but here are some of the things we’re looking for:
If you're a recruiting agency and want to partner with us, please reach out to [email protected].
Jane Street is a quantitative trading firm with offices in New York, London, Hong Kong, Singapore, and Amsterdam. We are always recruiting top candidates and we invest heavily in teaching and training. The environment at Jane Street is open, informal, intellectual, and fun. People grow into long careers here because there are always new and interesting problems to solve, systems to build, and theories to test. More than twenty years after our founding, it still feels like we’re just getting started. Jane Street does not offer any services to individual investors: https://www.janestreet.com/fraud-and-impersonation-warnings/
Offices: 250 Vesey Street, New York, NY 10281, US · 2 & A Half, Devonshire Square, London, EC2M 4UJ , GB · 10th Floor, Chater House, 8 Connaught Rd., Hong Kong, Central, HK · WTC Tower Ten - L19, Strawinskylaan 1657, Amsterdam, 1077 XX , NL · 10 Collyer Quay, 4/F, Ocean Financial Centre, Singapore, 049315, SG
Jane Street is a quantitative trading firm with offices in New York, London, Hong Kong, Singapore, and Amsterdam. We are always recruiting top candidates and we invest heavily in teaching and training. The environment at Jane Street is open, informal, intellectual, and fun. People grow into long careers here because there are always new and interesting problems to solve, systems to build, and theories to test. More than twenty years after our founding, it still feels like we’re just getting started. Jane Street does not offer any services to individual investors: https://www.janestreet.com/fraud-and-impersonation-warnings/
Offices: 250 Vesey Street, New York, NY 10281, US · 2 & A Half, Devonshire Square, London, EC2M 4UJ , GB · 10th Floor, Chater House, 8 Connaught Rd., Hong Kong, Central, HK · WTC Tower Ten - L19, Strawinskylaan 1657, Amsterdam, 1077 XX , NL · 10 Collyer Quay, 4/F, Ocean Financial Centre, Singapore, 049315, SG
