Jane Street
Quant · Quantitative trading firm
Jane Street currently has 25 active AI-related job listings. The hiring is distributed across several stages, with serving infrastructure and data each comprising 28% of the roles, followed by pre-training at 24% and post-training at 20%. The dominant function is Research, with 18 roles, and hiring is concentrated in Hong Kong, the United States, and the United Kingdom. Frequent tech tags include model_serving, recommender_systems, and inference_infra, suggesting a focus on deploying and optimizing AI models.
Quant · Quantitative trading firm
Currently tracking 23 active AI roles, with 16 new openings in the last 4 weeks. Primary focus: Serve · Research.
Jane Street currently has 25 active AI-related roles in our index. The most common open titles are: Machine Learning Researcher (7), Quantitative Researcher (7), Machine Learning Engineer (3), Machine Learning Performance Engineer (3), Senior Weather Analyst/ML Researcher (2). Most positions are in Research and Engineering.
Jane Street's active AI hiring is concentrated in: serving infrastructure (28%), pre-training (28%), data (28%). These categories follow a seven-stage AI lifecycle: data, pre-training, post-training, serving infrastructure, agents, evaluation, and application.
Jane Street is hiring AI talent in: Hong Kong (9 roles), United States (8 roles), United Kingdom (7 roles), Singapore (1 role).
Job postings at Jane Street most frequently reference: model serving, fine tuning, recommender systems, frontier research, pretraining.
In the past 30 days, Jane Street has posted 4 new AI-related roles.
| Title | Stage | AI score |
|---|---|---|
| Machine Learning Performance Engineer Seeking an engineer with low-level systems programming and optimization experience to join the ML team, focusing on optimizing the performance of ML models for both training and inference in a real-time trading environment. This role requires a deep understanding of GPU architecture, networking, and distributed systems to ensure efficient large-scale training and low-latency, high-throughput inference. | ServeData | 8 |
| Machine Learning Engineer Jane Street is seeking a Machine Learning Engineer with a strong mathematical background to join their ML team and drive the direction of their ML platform. The role involves applying various ML techniques to aid decision-making in their trading environment, enhancing research workflows, and building/maintaining training and inference infrastructure to move concepts to production. |
| Serve |
| 7 |
| Quantitative Trader Quantitative traders at Jane Street identify market signals, analyze strategies, build quantitative and algorithmic trading systems, manage risk, and develop new businesses. They use a wide range of statistical and ML techniques, from linear models to deep learning, on large datasets and computing clusters. | — | 5 |
| Data Center Mechanical Engineer Seeking an experienced Data Center Mechanical Engineer to manage cooling infrastructure for high-density AI workloads, supporting trading operations. This role involves designing, implementing, and monitoring power and cooling systems, bridging theoretical design with practical compute needs, and collaborating with ML researchers and engineers. Requires deep understanding of data center infrastructure from power distribution to chip level, with a focus on GPU/HPC systems. | — | 5 |
| Senior Network Engineer Senior Network Engineer to scale networks, drive standardization through automation, and explore AI/ML for operational improvements. Responsibilities include data center initiatives, WAN optimization, stakeholder interfacing, leading support and improvements, and documenting solutions. The role involves a passion for innovation, building scalable systems, and curiosity about AI in network operations. | — | 5 |
| Fixed Asset Accountant Seeking a Fixed Asset Accountant to manage global financial accounting and reporting for fixed assets and leasing arrangements. Responsibilities include capitalization, classification, depreciation, impairment assessments, and collaborating with various teams to streamline processes, improve data quality, and support strategic decision-making. The role involves analyzing large datasets, developing automated solutions, and liaising with external auditors. | — | 0 |
| MacOS Software Engineer Experienced Software Engineer with deep macOS software experience to build and maintain internal macOS applications and services. This role involves hands-on development, guiding the team, establishing CI/CD, improving tooling, and defining best practices. Requires strong expertise in the Apple ecosystem, Swift, and understanding of macOS internals. Collaboration and communication skills are essential. | — | 0 |
| ASIC Physical Design Engineer Jane Street is seeking an ASIC Physical Design Engineer for their Ultra Low Latency team. This role involves designing, testing, and deploying advanced hardware, with a focus on owning the physical design flow end-to-end while also having the ability to read/write RTL and understand front-end/back-end design interactions. The ideal candidate has 8+ years of experience in modern physical design flows and is interested in leveraging software engineering techniques and better tools to improve the hardware design process. | — | 0 |
| Cybersecurity Engineer Cybersecurity Engineer to protect company's people, data, and infrastructure. Responsibilities include firm-wide defenses, providing expertise, leading employee awareness efforts, and handling event analysis and incident response. | — | 0 |
| Data Center Engineer Experienced Senior Data Center Engineer to design, build, scale, and perform daily upkeep in a regional data center. This role involves hands-on work, project management, and collaboration with interdisciplinary teams including Network, Server, Facilities Engineering, Research, and Trading teams. | — | 0 |
| Data Center Construction Project Manager Seeking an experienced Construction Project Manager/Engineer to design, construct, and operate data centers, focusing on planning, overseeing projects, managing schedules and budgets, and coordinating with various internal and external stakeholders. | — | 0 |
| Data Center Commissioning Engineer Experienced Data Center Operations Engineer to join a technical group responsible for commissioning and daily operations of global data center infrastructure. Role focuses on ensuring new infrastructure is properly commissioned, transitioned to operations, and maintaining 100% uptime. Involves working with liquid cooling technologies in a high-performance computing environment, bridging the gap between construction and operations. | — | 0 |
| Security Operations Engineer Security Operations Engineer role focused on deploying and implementing security controls, managing vulnerabilities, and responding to security incidents within an IT infrastructure. Requires experience with Windows, macOS, and identity platforms, scripting for automation, and strong troubleshooting skills. | — | 0 |
| Campus Recruiter, Technology Jane Street is seeking an experienced Campus Recruiter to hire interns for their Software Engineering teams. The role involves managing the full recruitment pipeline, bringing fresh ideas to processes, and contributing to the growth and diversification of recruiting efforts. The ideal candidate has 5+ years of recruiting experience, preferably in university tech recruiting, and possesses strong organizational, communication, and problem-solving skills. | — | 0 |
| Unified Communications Engineer Seeking a Unified Communications (UC) Engineer to manage and grow global voice and video infrastructure. Responsibilities include improving tooling, deploying UC products, executing configuration changes, and acting as an escalation point. The role involves collaborating with IT Operations, Cybersecurity, and Networking teams on capacity planning, standards, and documentation. | — | 0 |
| Software Engineer Software Engineering intern role at Jane Street, focusing on learning OCaml and Python while working on real-world projects in high-performance trading systems and other areas. The internship emphasizes problem-solving, collaboration, and learning. | — | 0 |
| ASIC Engineer Seeking an experienced ASIC Engineer to design, test, and deploy advanced hardware designs for the Ultra Low Latency team, collaborating across trading, networking, and research infrastructure. The role involves both FPGA and ASIC technologies, with an emphasis on improving hardware engineering productivity through advanced tools like Hardcaml (OCaml-based). | — | 0 |
| IT Security Engineer Seeking an IT Security Engineer with a strong Windows engineering background to secure internal IT and remote working platforms. Responsibilities include designing, implementing, and documenting security controls, automating workflows, investigating threats, and driving vulnerability management. Requires proficiency in Windows OS security, endpoint security solutions, and understanding of threat tactics. PowerShell scripting is a plus. | — | 0 |
| Network Engineer, Security Experienced Network Engineer to join the Network Security team, focusing on running, scaling, and improving network security infrastructure. Responsibilities include design, implementation, management of security appliances, network segmentation, threat detection, and collaboration with Cybersecurity and Software Engineering teams. Requires strong networking fundamentals and security appliance experience. | — | 0 |
| Linux Engineer Seeking Linux Engineers to maintain and improve the critical infrastructure for Jane Street's production trading systems. Responsibilities include debugging kernel performance, developing management tools, resolving production issues, and focusing on deployment automation, configuration management, and monitoring. The role involves working with a mix of in-house and open-source software, collaborating with trading, technology, and operations teams, and performing root-cause analyses. Training is provided for smart problem solvers with a Bachelor's degree in a technical discipline or equivalent experience, and exposure to Linux environments. | — | 0 |
| FPGA Engineer FPGA Engineer with experience in both software and hardware design to build FPGA-based applications. The role involves using programming language technology to improve hardware design, testing, and validation processes, primarily using OCaml & Hardcaml for RTL design and testing, with exposure to Verilog and C. Experience with FPGA vendor tools and building FPGA projects is expected. | — | 0 |
| Software Engineer Software Engineer role at Jane Street, focusing on designing and building systems and tools across various firm functions including trading, accounting, and infrastructure. The role primarily uses OCaml and increasingly Python for data analysis, visualization, and machine learning. Experience in any programming language is welcome, with an emphasis on strong programming skills, intellectual curiosity, and a willingness to learn. | — | 0 |
| IT Operations Engineer Seeking an IT Operations Engineer to support, configure, and maintain systems including desktop environments, network infrastructure, and application platforms. Responsibilities include responding to tech support requests, building and configuring systems, supporting Windows domain infrastructure, monitoring critical systems, and optimizing operations through automation. The role requires strong problem-solving, troubleshooting, and communication skills, with collaboration across global IT Operations. | — | 0 |
| Cybersecurity Engineer - Threat Modelling Cybersecurity Engineer focused on threat modeling, vulnerability identification, and implementing secure solutions for applications, data, and infrastructure within a fintech firm. | — | 0 |
| Financial Resource Management Specialist This role is within the Finance team, focusing on managing and improving daily activities and processes related to the firm's capital base. Responsibilities include monitoring capital usage, reconciling models, executing funding trades, operating position management systems, and automating workflows. The role involves quantitative analysis, problem-solving, and decision-making under pressure, with opportunities for growth and long-term improvement implementation. | — | 0 |
| Software Engineer / Writer Software Engineer / Writer role focused on creating and improving documentation, building tools that support documentation, developing training materials, and writing longer-form content like tutorials and blog posts. Requires strong writing skills and sufficient programming ability to navigate codebases and understand technical concepts. Experience with functional programming, OCaml, or finance is not required. | — | 0 |
| Domain Specific Language Engineer Software Engineer to improve and maintain a custom ML-like programming language framework used for financial modeling, risk calculation, and alerting at Jane Street. The role involves working on core language features, standard library, and editor integrations, balancing support for existing uses with driving new functionality. | — | 0 |
| Cybersecurity - Senior Incident Responder and Forensic Investigator Senior Incident Responder and Forensic Investigator to join the Cybersecurity team, focusing on responding to external cyber incidents and investigating insider threats. The role involves using forensic analysis to determine attack vectors and scope, with an interest in automation and scripting. | — | 0 |
| Data Engineer Data Engineer to turn messy, real-world datasets into reliable inputs for research and trading. Build pipelines that ingest and transform external data, working closely with trading desks to identify data needs and evaluate datasets. Requires strong programming, SQL/DataFrame proficiency, and data investigation skills. | — | 0 |
| Language and Runtime Engineer Software Engineer with experience in language compilers and runtimes to maintain a framework for financial modeling, risk calculation, and custom alerting. Focus on performance, scalability, distribution, scheduling, and resource usage measurement. | — | 0 |
| Low-Latency Engineer Software Engineer with experience in high-performance, low latency systems to work on fast-trading systems. Experience with low level systems programming and optimization is critical. Knowledge of OCaml is not required but can be taught. | — | 0 |
| Front End Software Engineer Software engineer passionate about front-end development, user-interface design, and typed functional programming to build next-generation browser-based tools for trading infrastructure. Focus on high UX, flexibility, and power for expert users, with opportunities to create libraries, abstractions, and improve development practices. Requires strong web technologies background, practical experience with sophisticated UIs, and interest in typed functional programming. Role involves working across the stack and closely with traders. | — | 0 |
| Data Specialist Data Specialist role focused on understanding, improving, and maintaining data for trading operations. Responsibilities include analyzing, onboarding, validating, and producing large datasets, collaborating with engineers and traders, and interfacing with exchanges and data vendors to resolve issues. Requires strong data analysis, debugging, programming, and SQL skills. | — | 0 |
| Linux Engineering Manager Seeking a Linux Engineering Manager to lead a team responsible for maintaining and improving the platform powering Jane Street's production trading systems. The role involves both individual technical contributions and people/project management, with a focus on Linux systems, Unix command line, and systems programming. | — | 0 |
| Production Engineer Jane Street is hiring Production Engineers in New York. This role involves a split between OCaml software development project work and a support rotation, where engineers resolve live issues in critical trading systems. Production Engineers interact with various departments, own system architecture and design for monitoring and support, and develop internal tools. The role requires strong programming skills, intellectual curiosity, and excellent communication, particularly during production incidents. The firm emphasizes functional programming and OCaml. | — | 0 |
| Data Center Engineer Seeking an experienced Senior Data Center Engineer to design, build, scale, and maintain data center infrastructure, ensuring data safety and accessibility. Responsibilities include hands-on work, process optimization, project management, and collaboration with various internal and external teams. | — | 0 |
| Technical Program Manager Seeking a Technical Program Manager to provide organization and coordination for engineering initiatives in a core technology business. The role involves leading projects through their lifecycle, defining goals, managing timelines, tracking milestones, identifying risks, and communicating status. Requires strong communication, strategic thinking, and the ability to manage competing priorities in a fast-paced, flexible environment. Experience with software development project management and planning tools is essential. | — | 0 |
| Windows Engineer Engineer to manage and automate internal Windows infrastructure, including servers and desktops, focusing on performance and reliability. Requires scripting/programming experience (PowerShell, Python, C#) and collaboration within a global IT Engineering team. | — | 0 |
| Software Engineer Software Engineer role at Jane Street, a trading firm that uses technology at the core of its business. The role involves working with OCaml and Python, with Python being used for data analysis, visualization, and machine learning. The company values open-source software and collaborative work. No prior experience in functional programming, OCaml, Python, or finance is expected, as training will be provided. | — | 0 |
| Linux Engineer This role focuses on maintaining and improving the critical Linux infrastructure that powers Jane Street's production trading systems. Responsibilities include debugging kernel performance, developing management tools, resolving production issues, and implementing deployment automation, configuration management, and monitoring. The ideal candidate has deep knowledge of Unix internals and Linux, with practical experience in systems programming and troubleshooting. | — | 0 |
| Programming Language Engineer Jane Street is hiring an experienced Software Engineer to join their OCaml Language team. This role focuses on improving OCaml for their technology stack, collaborating with the OCaml community. Responsibilities include enhancing the type system, optimizing code performance, improving compiler speed and usability, and developing toolchain tools for profiling, debugging, and documentation. Most work is open-source. | — | 0 |