---
title: 'Linux Engineer at Jane Street'
canonical: 'https://feeny.ai/job/linux-engineer-jane-street-hong-kong-ch3c9gsp3knr'
type: 'job'
last_seen: '2026-09-10'
---

# Linux Engineer at Jane Street

- **Company:** Jane Street
- **Location:** Hong Kong, Hong Kong
- **Posted:** 2026-07-21
- **Last confirmed live:** 2026-09-10
- **Apply:** https://www.janestreet.com/join-jane-street/apply/8625946002?gh_jid=8625946002

## Job description

## About the Position

Our goal is to give you a real sense of what it's like to work at Jane Street full time while also providing a truly unparalleled educational experience. As an intern, you'll be paired with full-time employees who act as mentors, collaborating with you on real-world projects we actually need done.

As a Linux Engineering intern, you'll work side by side with full-timers to learn how we build and maintain the critical infrastructure underlying our firm's technology, including our production trading systems. Our work is hugely varied, both in the technical areas we work on and the ways we work. However, a consistent theme is that we typically work closer to the operating system layer, and sometimes dive as deep as the firmware or physical hardware layer. On any given day, we might be chasing a performance issue from the application layer all the way to the hardware, fixing a kernel bug, responding to an overheating datacenter in real time, analyzing data to improve the predictiveness of our monitoring systems, or building robust automation to tackle a previously manual workflow. Our purposeful blending of in-house and open source software allows us to investigate and innovate at every level.

During the program you'll spend the majority of your time working on a project, mentored closely by the full-time employees who designed it. Each project is carefully picked to challenge and develop both your in-depth understanding of Linux systems and your software engineering skills, both while delivering real value that is relevant to the challenges the firm is facing right now. Past projects have touched on a broad range of areas, including: investigating the resilience of different file system implementations at scale, automating the collection of diagnostic information from early boot failures, designing a scalable system for collecting extremely fine-grained TCP diagnostic data, or extending our infrastructure provisioning and management systems to support new forms of compute capacity.

Alongside your project work and classes, you will also get to experience real-time operational work alongside experienced full-timers. This is a unique opportunity to see how our team interacts with almost every other group: resolving emerging issues in our production infrastructure, seeing what happens when things do go wrong, and helping us perform comprehensive root-cause analyses to ensure we learn from such mishaps.

Learn more about Jane Street's internship program [here](https://www.janestreet.com/join-jane-street/internships/).

## About You

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, a collaborative spirit, and a passion for solving interesting problems, we have a feeling you'll fit right in. We're more interested in how you think and learn than what you currently know. You should be:

- Knowledgeable about operating system fundamentals and computer architecture
- Experienced with systems programming concepts like sockets, virtual memory, and the process life cycle
- Able to understand network protocols at a basic level
- Comfortable at the command-line of a Linux machine, whether that’s from coursework, time spent as a systems administrator for your campus computer lab, side projects, etc.
- Fluent with basic introspection and troubleshooting common aspects of a Linux system (e.g. system health as a whole, individual processes, checking logs, etc.)
- Someone who solves problems by writing code (in any language) and is invested in robust software engineering
- Intellectually curious, collaborative, and eager to learn (including from mistakes)
- Humble and unafraid to ask questions
- A strong communicator
- Fluent in English

If you're a recruiting agency and want to partner with us, please reach out to agency-partnerships@janestreet.com

## About Jane Street

## Company Overview
- **One-liner**: Jane Street is a global quantitative trading firm and liquidity provider that uses sophisticated technology, machine learning, and deep market expertise to trade financial products across equities, bonds, options, and ETFs.
- **Entity Type**: Private (not publicly traded)
- **Headquarters**: New York, USA (with offices in London, Hong Kong, Singapore, and Amsterdam)
- **Founded**: 2000
- **Founders**: Not publicly disclosed as a single founder group; the firm was founded by a team of quantitative traders and technologists.

## Core Business
- **Primary industry/industries**: Quantitative finance / Proprietary trading / Market making
- **Target customers**: Institutional clients (asset managers, pension funds, insurance companies, hedge funds) and global exchanges; the firm acts as a liquidity provider on over 200 electronic exchanges.
- **Mission or purpose statement**: “Solving the puzzle of global markets” — a research-driven approach to trading, blending human intuition with cutting-edge quantitative analysis.

## Products & Services
- **Market Making**: Jane Street provides continuous, two-sided quotes on equities, ETFs, bonds, options, and other instruments, helping keep prices consistent and reliable across global markets.
- **Proprietary Trading**: The firm trades its own capital across a wide range of asset classes, using sophisticated models and automated strategies.
- **Institutional Sales & Trading**: Partners with asset managers, pensions, and insurance companies to provide trading solutions and access to differentiated liquidity.
- **Technology & Infrastructure**: Builds all critical software in-house (trading systems, risk management, data analysis tools), using the OCaml functional programming language.

## Market Standing
- **Valuation/Market Cap**: Not disclosed (private firm). Industry estimates suggest Jane Street is one of the world’s largest and most profitable market makers, with annual trading volumes in the trillions of dollars.
- **Key Metric**: Not publicly disclosed. The firm is widely reported to have generated billions in annual revenue and profit, though exact figures are private.
- **Notable Investors/Partners**: 100% employee-owned. No external investors. Partners include top institutional clients globally.
- **Growth Signals**: Jane Street has grown every year in team, capital, and global presence since its founding in 2000. It has expanded from a focus on ETFs into equities, bonds, options, and other asset classes. The firm continues to invest heavily in machine learning and quantitative research.

## Competitive Advantages
- **Technical Moat**: Builds almost all software in-house using OCaml, a statically typed functional language that provides high reliability, real-time visibility, and performance at market scale.
- **Data & Scale**: Trades on 200+ electronic exchanges globally, processing trillions of historical events to uncover both sub-microsecond and long-term market inefficiencies.
- **Talent Density**: A culture of intellectual curiosity and collaboration across trading, research, and technology teams. The firm is known for hiring top minds from any background (math, physics, CS, engineering) and training them in-house.
- **Long-Term Track Record**: Over 20 years of consistent growth and profitability, navigating volatile markets with a disciplined, research-driven approach.

## Strategic Focus
- **Machine Learning & Quantitative Research**: Deepening the use of ML techniques across all trading strategies, from high-frequency to long-term systematic models.
- **Global Expansion**: Continuing to grow its presence in existing offices (NY, London, HK, Singapore, Amsterdam) and exploring new markets.
- **Technology Investment**: Ongoing investment in infrastructure, hardware (e.g., programmable hardware, high-performance computing), and software tools to maintain a competitive edge.
- **Talent Pipeline**: Heavy focus on recruiting interns and new grads, as well as experienced hires, with structured programs for learning and mentorship.

## Why Work Here
- **Culture**: Described as “open and collaborative,” with porous boundaries between trading, research, and technology. Intellectual humility and curiosity are highly valued.
- **Learning & Development**: Offers immersive internships, multi-day programs, direct mentorship, and a week abroad for interns. Full-time employees have access to extensive internal training, a library, and classrooms in every office.
- **Work Environment**: Most employees write code as part of their regular work. The firm is known for its technical excellence and for using the most advanced tools available.
- **Benefits**: Daily breakfast and lunch, fully-stocked kitchens, on-site gyms, nursing suites, quiet rooms, recreation spaces, health services, and more. Offices are designed for collaboration and deep focus.
- **Remote/Hybrid Policy**: Not explicitly stated, but the firm emphasizes in-person collaboration on trading floors. Offices are located in major global cities.
- **Diversity**: Actively seeks people from all backgrounds and emphasizes that the company is only as strong as its people.

## Sources
1. [janestreet.com - Home](https://www.janestreet.com/)
2. [janestreet.com - Overview](https://www.janestreet.com/join-jane-street/overview/)
3. [janestreet.com - What We Do](https://www.janestreet.com/what-we-do/overview/)
4. [janestreet.com - Departments](https://www.janestreet.com/join-jane-street/departments)
5. [janestreet.com - Open Roles](https://www.janestreet.com/join-jane-street/open-roles/)

## Other roles at Jane Street

- [Quantitative Researcher](https://feeny.ai/job/quantitative-researcher-jane-street-hong-kong-cag69vejmhn7) — Hong Kong, Hong Kong
- [Quantitative Trader](https://feeny.ai/job/quantitative-trader-jane-street-hong-kong-1axfz61mtsy7) — Hong Kong, Hong Kong
- [Data Center Operations Engineer](https://feeny.ai/job/data-center-operations-engineer-jane-street-chicago-xqnz1qv6hqx0) — Chicago, IL
- [Data Center Operations Engineer](https://feeny.ai/job/data-center-operations-engineer-jane-street-austin-texas-k6xskp5en38t) — Austin Texas, United States
- [Trading Desk Operations Engineer](https://feeny.ai/job/trading-desk-operations-engineer-jane-street-london-england-8gkez5pp5khd) — London England, United Kingdom
- [Swag Program Manager](https://feeny.ai/job/swag-program-manager-jane-street-new-york-new-york-jvcang41v6kv) — New York New York, United States
- [Procurement Specialist](https://feeny.ai/job/procurement-specialist-jane-street-new-york-new-york-5f9c5qqwqrzq) — New York New York, United States
- [Recruiting Coordinator - Experienced Hire Recruiting, Technology](https://feeny.ai/job/recruiting-coordinator-experienced-hire-recruiting-technology-jane-street-hong-94p4bxrfy97k) — Hong Kong, Hong Kong
- [Trading Desk Operations Engineer](https://feeny.ai/job/trading-desk-operations-engineer-jane-street-hong-kong-mdbjjwr0c94g) — Hong Kong, Hong Kong
- [Software Engineer](https://feeny.ai/job/software-engineer-jane-street-singapore-5teqb9206e4q) — Singapore