Jobs at Jane Street

Develop models, trading strategies, and systems for pricing and trading financial instruments. Responsibilities include experiment design, dataset generation, time series analysis, feature engineering, statistical and machine learning model development, distributed training, and analyzing production trading performance. The role involves collaborating closely with researchers, engineers, and traders while applying mathematical reasoning and programming skills to financial datasets.

Build and maintain trading desk infrastructure, support trading systems and workflows, execute data queries, solve operational issues, and coordinate with traders, developers, clearing firms, and external counterparties. The role combines coding, process optimization, stakeholder communication, trade settlement support, and collaborative problem-solving in a fast-paced environment. Mentorship and training are provided, and prior finance experience is not required.

Manage Jane Street’s global merchandise and swag program across recruiting, onboarding, events, outreach, and culture initiatives. Responsibilities include developing products, forecasting demand, coordinating roadmaps, managing vendors and logistics partners, overseeing inventory and shipping, tracking program metrics, and improving processes. The role requires expertise in physical product development, production and decoration methods, supply chain operations, and complex stakeholder coordination.

Procurement interns learn to source goods and services globally, develop RFPs, negotiate with vendors, compare quotes, manage inventory, issue purchase orders, coordinate logistics, and analyze spend data. The role also supports process efficiency improvements and sourcing research while working closely with mentors and cross-functional teams.

Supports experienced-hire technology recruiting across Asia by maintaining applicant tracking systems, scheduling interviews, managing recruiting calendars, coordinating live interviews, and administering recruiting tools. The role focuses on accurate execution, candidate experience, stakeholder communication, prioritization, and learning recruiting processes and systems.

Build and maintain infrastructure, tools, and operational processes supporting trading desks across global venues. Responsibilities include supporting trading systems, executing data queries, solving desk-related technical issues, coordinating with internal stakeholders, and communicating with clearing firms and counterparties to settle trades. The role emphasizes hands-on coding, organizational skills, collaboration, mentorship, and continuous learning in a fast-paced environment.

Design and build systems and tools supporting trading, accounting, infrastructure, network monitoring, and risk modeling. Engineers use OCaml as the primary language and Python for data analysis, visualization, and machine learning. The role values strong programming ability, intellectual curiosity, collaboration, humility, continuous learning, and English fluency. Prior experience in functional programming, OCaml, Python, or finance is not required.

Design and build critical systems, trading tools, foundational infrastructure, monitoring systems, risk models, and accounting technology. Work collaboratively to solve complex problems using OCaml, Python, and other programming languages. Contribute to and support open-source projects while learning new technologies and applying strong problem-solving skills.

Own and develop the Hong Kong control room function by managing trading restrictions, restricted lists, sanctions-related controls, information barriers, and MNPI processes. Advise traders and business teams on live restrictions, evaluate affected instruments, maintain policies and procedures, support surveillance and look-back reviews, and respond to regulatory changes. The role requires sound judgment under time pressure, strong written and verbal communication, and familiarity with Hong Kong, China, APAC, and global sanctions regulations.

Supports the design, deployment, security, maintenance, and automation of Windows desktops, servers, and company infrastructure. Develops Windows automation and configuration-management tools, improves CI/CD systems and cross-platform frameworks, enhances monitoring and scalability, and streamlines coding and deployment workflows. Works with OCaml, F#, PowerShell, and .NET technologies alongside experienced engineers on mission-critical projects.

Mechanical Engineer Interns support the design and management of resilient trading floors, data centers, and office infrastructure. Responsibilities include researching and implementing sustainable engineering solutions, analyzing infrastructure and communication topology, integrating engineering requirements into designs, visiting project sites, documenting field conditions and progress, planning design capacity, and collaborating with technical and non-technical teams. The role emphasizes learning, engineering judgment, AI-assisted efficiency, sustainability, and communication.

Create print and digital assets across recruiting, events, conferences, puzzles, games, swag, packaging, logos, and brand systems. Translate complex financial, technological, and mathematical concepts into clear, engaging visual designs. Manage multiple projects from brief through production, collaborate with stakeholders, present work, incorporate feedback, and provide constructive design guidance.

Internship supporting trading desk operations: manage and optimize infrastructure and processes, support trading systems via data queries, coordinate stakeholders, and design/implement desk-focused solutions while learning trading lifecycle and regulatory/operational workflows.

The Recruiter will manage the recruitment lifecycle for non-technical hires, improve sourcing methods, and enhance candidate interaction at Jane Street.

This internship involves research in programming languages and compilers, focusing on OCaml improvements alongside mentors for 10-12 weeks.

Design and implement browser-based trading tools with polished, sophisticated UIs. Build reusable UI libraries and abstractions, collaborate across the stack, and work closely with traders to capture user needs. Emphasizes typed functional programming and high UX standards.

Provide hands-on support for network issues, enhance workflows, focus on automation, and integrate AI in network operations.

Lead and enhance the UK travel program, managing vendor relationships, overseeing operations, and developing travel strategy while ensuring exceptional experiences for colleagues and candidates.

Join the Operations team at Jane Street, focusing on trade settlements and cash management, utilizing large data sets, and collaborating with internal and external teams.

The role involves sourcing and procurement support, managing RFPs, negotiating contracts, overseeing purchase orders, and building supplier relationships.