Jane Street

Senior Network Engineer to scale networks, drive standardization through automation, and explore AI/ML for operational improvements in a multi-vendor, highly available network infrastructure handling high-speed trading and internet connectivity.

Software Engineer role at Jane Street, a quantitative trading firm. The role involves using technology across various business areas, with a focus on functional programming (OCaml) and increasing use of Python for data analysis, visualization, and machine learning. The company values open-source contributions and offers training in necessary technologies.

HR Generalist role supporting employees in Singapore, acting as the first point of contact for HR queries, advising on policies, assisting with benefits, and maintaining HR databases. The role involves working autonomously on day-to-day issues while collaborating with the regional team, and assisting with HR projects and operational improvements.

Cybersecurity Engineer role focused on protecting company infrastructure, data, and people. Responsibilities include firm-wide defenses, providing expertise, leading awareness efforts, and handling event analysis and incident response. Requires strong technical foundation, automation skills, threat modeling understanding, and awareness of cybersecurity developments.

Seeking a Technical Program Manager to provide organization and coordination for engineering initiatives within Jane Street's technology group. This role involves leading projects from definition to delivery, managing timelines, risks, and communication across various teams, including external financial entities. The ideal candidate is a strategic thinker comfortable with ambiguity and capable of making impactful decisions in a fast-paced, problem-solving environment.

Experienced Network Engineer to join the Network Security team, focusing on running, scaling, and improving network security infrastructure. Responsibilities include hands-on operations, design, implementation, managing firewalls and proxies, network segmentation, threat detection, and evaluating new security platforms.

Seeking a Technical Program Manager to provide organization and coordination for engineering initiatives in a core technology group that builds and optimizes trading technology. The role involves leading projects from definition to delivery, managing timelines, risks, and communication across various teams, including external financial entities. Requires strong technical background, communication skills, strategic thinking, and comfort with ambiguity.

Experienced Facilities Operations Engineer to manage and maintain physical infrastructure for trading floors and amenity spaces, ensuring 24/7 critical operations. Requires expertise in MEP systems, data center maintenance, and managing SLAs, with a collaborative approach to stakeholder and vendor relations.

Jane Street is seeking a FIX Onboarding and Connectivity Engineer to enhance their trading capabilities and client services. This role involves managing the technical processes for accessing new products and exchanges, onboarding clients, and collaborating with trading and technology teams to build connectivity systems. The engineer will prioritize requests, work with developers and infrastructure engineers, and ensure successful production onboarding. Responsibilities include bridging communication between clients, trading, and technology teams, navigating the Unix command line, and developing code. The role also emphasizes improving team function, collaboration, and project delivery practices.

Linux Engineer responsible for maintaining and improving the critical infrastructure underlying Jane Street's production trading systems. This involves debugging kernel performance, developing management tools, resolving production issues, deployment automation, configuration management, and monitoring. The role requires deep knowledge of Unix internals, Linux systems, systems programming, and troubleshooting tools, with a willingness to learn OCaml.

Software Engineers at Jane Street design and build systems and tools for various firm operations, including trading desks, accounting, and foundational infrastructure. The role emphasizes functional programming (OCaml) and increasingly utilizes Python for data analysis, visualization, and machine learning. The company values smart, curious, and collaborative programmers who enjoy solving problems, regardless of their prior experience in specific fields.

Unified Communications Engineer to grow, monitor, and manage global voice and video infrastructure, focusing on end-user setup, asset management, and collaboration/telephony systems. Responsibilities include improving tooling, monitoring, hardware refreshes, and configuration changes, while minimizing downtime. The role involves interfacing with IT Operations, Cybersecurity, and Networking for capacity planning, standards development, and documentation.

Cybersecurity Analyst responsible for developing and using monitoring tools, incident response, remediation, threat hunting, and improving detection capabilities and automation.

Data Centre Engineer responsible for designing, building, scaling, and maintaining data and colocation centers, ensuring security, organization, and operational efficiency. This role involves hands-on work, process thinking, project management, and collaboration with various internal teams and external vendors.

Jane Street is hiring Production Engineers in Hong Kong and Singapore. This role involves both software development and providing support for critical trading systems. Production Engineers work within software teams, focusing on creating and running great software systems, with a strong emphasis on functional programming (OCaml). They interact with various departments, solve real-time issues, and impact the firm-wide operations by owning the architecture and design of monitoring and support systems. The role requires a blend of development and support rotation, offering broad knowledge and collaboration opportunities. Candidates should be strong, curious, collaborative programmers who enjoy problem-solving and can communicate clearly under pressure.

Jane Street is seeking Linux Engineers to maintain and improve the critical infrastructure underlying the firm's technology. This role involves debugging kernel performance, developing management tools, resolving production issues, and focusing on deployment automation, configuration management, and monitoring. The ideal candidate has deep knowledge of Unix internals and the Linux ecosystem, with practical experience in systems programming concepts.