---
title: 'Linux Engineer at Jane Street'
canonical: 'https://feeny.ai/job/linux-engineer-jane-street-hong-kong-dp566hmdn136'
type: 'job'
last_seen: '2026-09-10'
---

# Linux Engineer at Jane Street

- **Company:** Jane Street
- **Location:** Hong Kong, Hong Kong
- **Posted:** 2026-01-19
- **Last confirmed live:** 2026-09-10
- **Apply:** https://www.janestreet.com/join-jane-street/apply/8377832002?gh_jid=8377832002

## Job description

## 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 field of interest through fun and challenging classes, interactive sessions, and group discussions — and then you will have the chance to put those lessons to practical use.

As an intern, you are paired with full-time employees who act as mentors, collaborating with you on real-world projects we actually need done. When you’re not working on your project, you will have plenty of time to use our office amenities, physical and virtual educational resources, attend guest speakers and social events, and engage with the parts of our work that excite you the most.

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.

## About the Position

As a Linux Engineering intern, you’ll work side by side with full-timers to learn how we maintain and improve the critical infrastructure underlying our firm’s technology, including our production trading systems. On any given day, we might be debugging kernel performance, developing management tools, or resolving production issues in real time. Our mix of in-house and open source software allows us to investigate and innovate at every level.

During the program you’ll work on up to two projects, mentored closely by the full-time employees who designed them. Some projects consider big-picture questions that we’re still trying to figure out, while others involve building something new.  We will choose your projects so you’ll gain a better understanding of the wide range of problems we solve every day — from finding new and interesting ways to resolve production issues quickly, perform comprehensive root-cause analyses, and integrate long-term fixes in a clean and robust way.

You’ll have a unique opportunity to see how our team interacts with almost every other group, building solutions that work on a firm-wide scale. We automate as much of our work as we can, because we find that automation reduces our error rate and overall workload — plus, we think it's fun.

## About You

We don’t expect you to have a background in one specific field — we’re looking for smart people who enjoy solving interesting problems. We’re more interested in how you think and learn than what you currently know. You should be:

- Knowledgeable of operating system fundamentals and computer architecture
- Able to understand network protocols at a basic level
- Someone who solves problems by writing code (in any language)
- Intellectually curious, collaborative, and eager to learn
- Humble and unafraid to ask questions and admit mistakes
- A strong communicator
- Are comfortable at the command-line of a *nix machine as you are in a GUI
- Experienced with systems programming concepts like C, sockets, virtual memory, and the process life cycle
- Experienced with a modern *nix system, whether that’s from course work, time spent as a systems administrator for your campus computer lab, side projects, etc.
- Intending to start full-time employment in 2027 or 2028
- Fluent in English

Please note: Jane Street will provide flights to and from Hong Kong as well as accommodation throughout the entirety of the program.

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