---
title: 'Data Center Operations Engineer at Jane Street'
canonical: 'https://feeny.ai/job/data-center-operations-engineer-jane-street-chicago-xqnz1qv6hqx0'
type: 'job'
last_seen: '2026-09-09'
---

# Data Center Operations Engineer at Jane Street

- **Company:** Jane Street
- **Location:** Chicago, IL
- **Posted:** 2026-09-08
- **Last confirmed live:** 2026-09-09
- **Apply:** https://www.janestreet.com/join-jane-street/apply/8786398002?gh_jid=8786398002

## Job description

## About the Position

We are looking for an experienced Data Center Operations Engineer to join a highly technical group responsible for operating and maintaining our rapidly scaling data center infrastructure.

This is a hands-on role supporting live, mission-critical facilities while additional data halls and buildings are constructed and commissioned on the same campus. This is a role based at our mission-critical data center campus in Chicago. You will support the live portions of the campus, helping us keep live infrastructure operating reliably while bringing new capacity safely into service.

Our team is collaborative in nature, spanning many internal departments and external vendors, contractors, consultants, and operations teams. Your work will cover all aspects of our complex data center environments, including working with advanced power and cooling systems.

Additional responsibilities of the role will include:

- Operating and maintaining live data center environments, including regular equipment inspections, alarm response, incident response, and follow-up
- Troubleshooting cooling, power, controls, and monitoring issues at the cabinet, pod, and facility levels
- Supporting and maintaining CDUs, RDHx units, and direct liquid cooling infrastructure, including hands-on tasks such as filter replacement, valve and hose checks, and leak response
- Monitoring operations through internal BMS and monitoring tools, investigating abnormal conditions, and escalating issues with clear technical context
- Reviewing, executing, and improving SOPs, EOPs, and MOPs in coordination with internal teams, data center providers, and specialist vendors
- Planning and coordinating preventative and reactive maintenance, supervising critical work, and confirming that equipment is returned to service correctly
- Acting as the primary day-to-day liaison with the data center provider and coordinating vendors performing work on site for our scope of work
- Supporting construction and commissioning activities for new data halls, including site walks, drawing and submittal review, script review, witnessing tests, and construction-to-operations turnover

## About You

- Have 5+ years of hands-on experience operating, maintaining, commissioning, or constructing mission-critical data centers, trading floors, or similar 24/7 facilities
- Have in-depth knowledge of MEP systems such as switchgear, UPSs, generators, STSs, PDUs, RPPs, chillers, CDUs, CRAH/CRAC units, pumps, fire protection systems, and BMS/EPMS
- Have a strong understanding of data center cooling and electrical principles, including redundancy topologies, containment, airflow management, and liquid cooling
- Experienced with maintaining and troubleshooting direct liquid cooling systems, including CDUs, RDHx units, valves, hoses, filters, and associated controls
- Comfortable using BMS and monitoring tools to investigate alarms, identify trends, and diagnose equipment or system problems
- Experienced with writing, reviewing, and executing SOPs, EOPs, and MOPs
- Proven able to work effectively with data center providers, contractors, OEMs, and service vendors
- A strong problem-solver and communicator with the ability to describe detailed problems with brevity and accuracy
- A self-starter who works well independently, prioritizes effectively, and makes sound judgment calls under pressure
- Flexible to work nights and weekends in support of 24x7x365 operations and willing to participate in an on-call rotation for critical site emergencies
- Have a degree in a relevant engineering discipline (or equivalent critical facilities experience)
- Able to perform physical work, including lifting up to 50 lbs.
- Having some construction and commissioning experience is strongly preferred, including walking job sites, reviewing drawings and submittals, and witnessing tests

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

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