Full-Time

Senior Network Engineer

Low Latency Trading

Hudson River Trading

Hudson River Trading

501-1,000 employees

Proprietary algorithmic, high-frequency trading for institutions

Compensation Overview

$200k - $300k/yr

+ Bonus

London, UK + 3 more

More locations: Seattle, WA, USA | Chicago, IL, USA | New York, NY, USA

In Person

Category
Quantitative Finance (1)
Required Skills
Fortinet
Microsoft Azure
Python
Grafana
Wireshark
Git
AWS
Prometheus
Ansible
Linux/Unix
Google Cloud Platform
Requirements
  • BS in Computer Science, Electrical Engineering, or related IT field
  • 5-10 years of relevant experience, preferably in low-latency and high-frequency trading environments
  • In depth understanding of common layer 2 and layer 3 network protocols and best practices; working knowledge of OSPF, BGP, PIM, IGMP
  • Experience managing Arista, Cisco, and other common networking devices on a day-to-day basis
  • Experience in designing enterprise networks, capacity planning, and full lifecycle project management
  • Experience with packet decoding and analysis tools such as tcpdump and Wireshark
  • Experience with Unix/Linux command line utilities and networking stack
  • Excellent troubleshooting skills on a wide range of networking issues, including common ethernet LAN problems, multicast market data distribution, and global WAN
  • Understanding of basic power consumption and cooling issues in a datacenter environment
  • Knowledge of fiber optics technology and cabling standards. Ability to sort through specs and make recommendations on appropriate purchases
  • Willingness and ability to solve small technical problems in the field yourself
  • Excellent collaboration skills and a willingness to admit mistakes
  • Familiarity with firewalls (including Cisco, Palo Alto, Fortinet), VPNs and NAT
  • Familiarity with configuration management tools, such as Ansible or Salt is desirable
  • Familiarity with Python, Prometheus, Grafana, ELK, GitHub is desirable
  • Familiarity with public cloud networks, such as AWS, GCP, Azure, is desirable
Responsibilities
  • Designing and managing large-scale, low-latency trading network infrastructure across multiple locations and countries
  • Product selection and design to routing configuration and troubleshooting
  • Work closely with Systems and Trading Operations teams and others at Hudson River Trading to build, manage, and monitor the network
  • Analyze and solve problems with broad responsibilities and immediate impact on worldwide operations
  • Work on a wide variety of projects to enhance performance and capacity of global trading and research platforms and contribute to high-level strategy and technical nitty-gritty of global network architecture
Desired Qualifications
  • Desirable: familiarity with microwave networks and/or optical transmission systems such as Adva, Ciena
  • Desirable: familiarity with configuration management tools, such as Ansible or Salt
  • Desirable: familiarity with Python, Prometheus, Grafana, ELK, GitHub
  • Desirable: familiarity with public cloud networks, such as AWS, GCP, Azure

What Hudson River Trading does: It uses computer-based trading to buy and sell financial instruments for institutional clients, using its own private algorithms and fast computers to trade in global markets. How its products work: The firm designs mathematical models and software that scan market data and place many trades in milliseconds. It aims to earn small profits on a huge number of trades by moving quickly and reacting to price changes across asset classes worldwide. How it differs from competitors: HRT relies on in-depth research and proprietary algorithms, large-scale computing, and a global network of offices to trade across many markets. This combination helps it stay competitive against other high-frequency trading firms and banks. What its goal is: To generate reliable revenue by executing a high volume of fast trades while continually improving its models and technology through ongoing research and development.

Company Size

501-1,000

Company Stage

Debt Financing

Total Funding

$630M

Headquarters

New York City, New York

Founded

2002

Simplify Jobs

Simplify's Take

What believers are saying

  • HRT launched SDP in US and SI in Europe in 2018 for client liquidity.
  • HRT introduced Client Market Making in 2022, expanding revenue streams.
  • HRT acquired Sun Trading in 2018, enhancing US and European equities execution.

What critics are saying

  • SEC and ESMA target HRT Execution Services for pricing transparency violations.
  • Goldman Sachs and JPMorgan recruit 37% of HRT's technology workforce now.
  • EU and US regulators cap sub-millisecond orders, nullifying HRT's speed edge.

What makes Hudson River Trading unique

  • HRT holds 25% trading capital overnight unlike typical high-frequency firms.
  • HRT's average holding time spans five minutes across multi-time horizons.
  • HRT conducts under 1% trading in dark pools, minimizing regulatory scrutiny.

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Benefits

Dental, Vision, Disability, Health, Life, and Supplemental Life Insurance

Flexible Spending Account

Health Savings Account

401(k)

Paid Time Off

Free lunch or snacks

Gym membership

Company News

TechCrunch
Mar 10th, 2026
AI networking startup Eridu emerges from stealth with $200M Series A

AI networking startup Eridu has emerged from stealth with a $200 million Series A round led by Socratic Partners, John Doerr, Matter Venture Partners and others, bringing total funding to $230 million. The oversubscribed round values the company comparably to other large Series A deals, though CEO Drew Perkins declined to confirm unicorn status. Founded in 2024 by networking veterans Drew Perkins and Omar Hassen, Eridu is developing new silicon and systems designed specifically for AI data centres. The company aims to replace traditional tiered optical connections with on-chip communications, reducing latency and power consumption whilst improving reliability. Perkins previously co-founded Lightera Networks, Infinera and Gainspeed, companies that collectively generated over $2.7 billion in exits. Other investors include Hudson River Trading, Capricorn Investment Group, TSMC's VentureTech Alliance and MediaTek.

AlphaQ
Dec 2nd, 2025
Alphacution Press: Hudson River Mints Billions In the Shadow of Jane Street and Citadel Securities

Alphacution Press: Hudson River mints billions in the shadow of Jane Street and Citadel Securities. December 2nd, 2025 | Press Alphacution quoted in Bloomberg's December 1, 2025 article ($) by Katherine Doherty on how, apparently, Hudson River Trading is competing with the likes of Jane Street and Citadel Securities by slowing its trading down, among other explorations, such as options trading. "The biggest and the best prop firms, the ones making all the waves and money, are huge in options," said Paul Rowady, founder and director of research at Alphacution. "HRT hasn't traded options to the same scale. They realize the opportunity." See Feed post, "Hudson River Finally Sets a Hook" (Oct 31, 2025) and our case study, "Rise of Hudson River Trading" (Jan 23, 2021)

Scoop Today
Mar 18th, 2025
Global leading market maker HRT joins forces with Wall Street financial giants to expand into the Asian market.

Hudson River Trading and several major Wall Street financial giants have signed a strategic partnership agreement to actively develop the Asia-Pacific financial market.

The Full FX
Jul 19th, 2024
Hudson River Trading Latest to Sign with Google Cloud

"Google Cloud is proud to partner with Hudson River Trading on their journey to redefine the frontiers of quantitative trading," says Rohit Bhat, managing director, capital markets, hedge funds, and digital assets, Google Cloud.

EFINANCIALCAREERS
Apr 10th, 2024
HFT firm's "shiny London office" tempts away Google engineer of 17 years

Guido Trotter has joined Hudson River trading this week as a staff software engineer in its "shiny London office."