---
title: 'AI Research Engineer, Inference at Hudson River Trading'
canonical: 'https://feeny.ai/job/ai-research-engineer-inference-hudson-river-trading-london-mb6yty1zzfwt'
type: 'job'
last_seen: '2026-10-16'
---

# AI Research Engineer, Inference at Hudson River Trading

- **Company:** Hudson River Trading
- **Location:** London, United Kingdom / New York, NY
- **Posted:** 2026-06-01
- **Last confirmed live:** 2026-10-16
- **Apply:** https://www.hudsonrivertrading.com/careers/job/?gh_jid=7972593

## Job description

Hudson River Trading (HRT) is seeking an AI Research Engineer (Inference) to join the HAIL team. HAIL (HRT AI Labs) is the team at HRT responsible for developing and maintaining our most powerful models, which are used by our trading teams to drive a significant fraction of our trading. We are building and deploying "foundation models for markets", that ingest and train on vast amounts of market and “alternative” data (such as language) to make predictions about future market state.

As an inference research engineer on HAIL, you will have a general mandate to improve all aspects of large-scale model inference, including but not limited to GPU kernel development, novel inference devices like ASICs and FPGAs (both off-the-shelf and in-house), and data streaming. You will work closely with our researchers to co-design and improve our models, and shape the research agenda.

We have a complex inference solution involving a variety of devices deployed around the world to meet a variety of trading needs. We are simultaneously pursuing multiple strategies and developing many model types with different purposes, and we are strongly incentivized to squeeze as much as we can out of our systems. Your work will be directly, clearly, and highly impactful on the business, and it will be challenging: this is a field with no easy or obvious solutions.

## Qualifications

- Strong engineering skills, especially any of: CUDA/Triton/Pallas/CuTe DSL kernel development, lower-level PyTorch/JAX/XLA development, CUDA Graphs, FPGA/ASIC experience
- Must have two or more years work experience building deep learning systems, for any domain: robotics, biology, chemistry, physics, audio, video, recommendations, etc.
- Experience translating methods between areas of application is highly valued
- LLM experience is valuable, but not necessary
- Finance experience is not required

The estimated base salary range for this position is 250,000 to 300,000 USD per year (or local equivalent). The base pay offered may vary depending on multiple individualized factors, including location, job-related knowledge, skills, and experience. This role will also be eligible for discretionary performance-based bonuses and a competitive benefits package. Culture

Hudson River Trading (HRT) brings a scientific approach to trading financial products. We have built one of the world's most sophisticated computing environments for research and development. Our researchers are at the forefront of innovation in the world of algorithmic trading.

At HRT we welcome a variety of expertise: mathematics and computer science, physics and engineering, media and tech. We’re a community of self-starters who are motivated by the excitement of being at the cutting edge of automation in every part of our organization—from trading, to business operations, to recruiting and beyond. We value openness and transparency, and celebrate great ideas from HRT veterans and new hires alike. At HRT we’re friends and colleagues – whether we are sharing a meal, playing the latest board game, or writing elegant code. We embrace a culture of togetherness that extends far beyond the walls of our office.

Feel like you belong at HRT? Our goal is to find the best people and bring them together to do great work in a place where everyone is valued. HRT is proud of our diverse staff; we have offices all over the globe and benefit from our varied and unique perspectives. HRT is an equal opportunity employer; so whoever you are we’d love to get to know you.

Please be advised: Use of AI tools by an applicant during interviews or assessments is strictly prohibited, unless otherwise instructed or agreed upon. We employ various methods to evaluate the authenticity of candidate responses. If we determine that AI assistance was used by an applicant during an interview or an assessment, we reserve the right to immediately end the interview or assessment, disqualify the applicant’s candidacy and/or rescind any job offers extended.

You can review our [Global Applicant Privacy Notice](https://www.hudsonrivertrading.com/global-applicant-privacy-notice/), which explains how we process applicant information.

## About Hudson River Trading

## Company Overview
- **One-liner**: Hudson River Trading (HRT) is a multi-asset class quantitative trading firm that builds automated trading algorithms to provide liquidity on global markets.
- **Entity Type**: Private (no public ticker; no external funding rounds disclosed)
- **Headquarters**: New York City, New York, USA
- **Founded**: 2002
- **Founders**: Not publicly disclosed (current owner is Jason Carroll)

## Core Business
- **Primary industry**: Financial services – algorithmic trading and market making.
- **Target customers**: Institutional market participants, exchanges, and liquidity consumers (B2B). The firm trades on over 200 markets worldwide.
- **Mission/purpose**: “We are thoughtful market leaders, committed to the health and longevity of global markets.” [hudsonrivertrading.com](https://www.hudsonrivertrading.com/)

## Products & Services
- **Automated Trading Algorithms**: Proprietary models developed by mathematicians, physicists, and software engineers to execute trades across equities, futures, options, and other asset classes. Emphasis on statistical analysis and high-performance infrastructure.
- **Market Making**: HRT provides two-sided liquidity on electronic exchanges, holding about 25% of capital overnight with an average holding time of roughly five minutes (distinct from stereotypical high-frequency trading firms). [wikipedia.org](https://en.wikipedia.org/wiki/Hudson_River_Trading)

## Market Standing
- **Valuation/Market Cap**: Not publicly disclosed.
- **Key Metric**: In Q1 2021, HRT generated approximately **$1.2 billion** from trading, amid heightened market volatility (Bloomberg report). [wikipedia.org](https://en.wikipedia.org/wiki/Hudson_River_Trading)
- **Notable Investors/Partners**: No external investors (private, founder-owned). Member of the Principal Traders Group (Futures Industry Association). Acquired competitor Sun Trading in 2018.
- **Growth Signals**: Employs over 800 people across offices in New York, Chicago, Austin, Boulder, London, Singapore, Shanghai, Mumbai, and Dublin. Continues to hire aggressively for roles in software engineering, algorithmic development, and research (130+ open roles as of mid-2026 per career page). [hudsonrivertrading.com/careers](https://www.hudsonrivertrading.com/careers/)

## Competitive Advantages
- **Advanced technology stack**: HRT’s distributed system is on the Pareto frontier of latency and throughput, giving researchers and engineers a unique platform for fast experimentation.
- **Collaborative culture**: Unlike many prop trading firms, HRT emphasizes shared R&D and cross-team cooperation (“the best ideas are born in a shared research and development environment”).
- **Ethical stance**: Internal code of ethics that exceeds regulatory requirements; transparent market participation (<1% of trading in dark pools).
- **Diversified strategies**: Multi-asset, multi-timeframe trading reduces single-point risk and enables resilience.

## Strategic Focus
- **Talent acquisition**: Actively recruiting from top math, computer science, and physics programs, as well as experienced engineers from big tech (Wall Street Journal noted HRT’s efforts to attract talent from Silicon Valley).
- **Global expansion**: Continued office openings in Asia and Europe to access more markets and liquidity pools.
- **Infrastructure investment**: Ongoing development of low-latency, high-throughput systems to maintain a competitive edge in algorithmic trading.

## Why Work Here
- **Culture**: HRT describes itself as “a small tech company with a big impact” – a community of curious, collaborative problem-solvers. Core values include automation & efficiency, make it better, togetherness, and inclusivity. [hudsonrivertrading.com/life-at-hrt](https://www.hudsonrivertrading.com/life-at-hrt/)
- **Hybrid/remote policy**: Majority of teams adopt an even split between in-office and remote work; some roles require full-time presence. Relocation assistance is available.
- **Perks & benefits**: Company-paid medical/dental (no premiums), 401k/pension matching, generous parental leave (via Progyny), caregiver support (Vivvi), fitness centers/reimbursement, daily catered meals, coffee bar, and regular social events (company trips, happy hours, volleyball tournaments).
- **Engineering environment**: Strong emphasis on C++, Python, OS internals, CPU architecture, and networking. Engineers work on everything from high-frequency trading engines to research infrastructure.

## Sources
1. [hudsonrivertrading.com](https://www.hudsonrivertrading.com/) – Company overview, mission, and philosophy.
2. [hudsonrivertrading.com/careers](https://www.hudsonrivertrading.com/careers/) – Job types, locations, and role descriptions (Algo Developer, Software Engineer, Algo Software Engineer).
3. [hudsonrivertrading.com/life-at-hrt](https://www.hudsonrivertrading.com/life-at-hrt/) – Benefits, culture, diversity & inclusion, work environment.
4. [wikipedia.org](https://en.wikipedia.org/wiki/Hudson_River_Trading) – History, business model, trading statistics (5% of US trading in 2014, Q1 2021 revenue, acquisition of Sun Trading).

## Other roles at Hudson River Trading

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- [Middle Office Analyst - FX](https://feeny.ai/job/middle-office-analyst-fx-hudson-river-trading-new-york-xmzj7mkmndkk) — New York, NY
- [Research Data Expert](https://feeny.ai/job/research-data-expert-hudson-river-trading-london-wkpsmgkvq2hd) — London, United Kingdom / New York, NY / Singapore
- [Endpoint Engineer - Mobile](https://feeny.ai/job/endpoint-engineer-mobile-hudson-river-trading-new-york-yjq5r5gamjgq) — New York, NY
- [Data Scientist Intern - 2027](https://feeny.ai/job/data-scientist-intern-2027-hudson-river-trading-london-9v55cdzm81q0) — London, United Kingdom / New York, NY
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- [Security Engineer](https://feeny.ai/job/security-engineer-hudson-river-trading-mumbai-gzk84yacxkf9) — Mumbai, India
- [Software Engineer - Low Level (C++)](https://feeny.ai/job/software-engineer-low-level-c-hudson-river-trading-singapore-8gf6g9651d9w) — Singapore