Hudson River Trading

10/13/2026

Our research engine relies on vast compute capacity across global sites, from New York to Chicago to Norway. Managing datasets at this scale requires more than standard network monitoring.

In our latest blog post, Eric Goldlust describes how we combined Linux eBPF kernel tracing, custom service logs, and hardware byte counters to build end-to-end network observability across our entire global cluster, ensuring every byte is accurately mapped back to the right workflow.

Read the full technical breakdown on the HRT Beat:

As our compute spreads around the world, we’re constantly shipping data from site to site. We built a system that joins service telemetry with eBPF tracing and network hardware byte counters to show us which users and programs are generating the most traffic.

10/06/2026

While our interns certainly arrive expecting to learn, they’re often surprised by how quickly they’re trusted to contribute. They work directly on live trading infrastructure, collaborate across research environments, and often deploy production features into the main codebase.

They're not doing it alone. High autonomy comes with an open-door culture where leadership is accessible, mentors make time, and asking questions is expected.

Watch the full feature to see how our interns learn, grow, and build together over a packed summer: https://youtu.be/cPmVLrTA8AU

09/18/2026

When Anshul stepped into HRT's software engineering internship, his summer was designed to stretch both his existing strengths and entirely new skills. In New York, he leaned into his background in Python to extend core backend trade tools. In London, he stepped out of his comfort zone to develop front-end features for Algorithm Developers.

Watch Anshul's 12-week internship unfold across two projects, two teams, and two global offices.

There's still time to apply for 2027 student opportunities! Check them out here: https://brnw.ch/21x5NrF

08/26/2026

On the latest HRT Beat blog, our 2025 Software Engineering interns share how they took on various production infrastructure challenges before joining HRT full-time.

Victoria optimized SmallGrid pub-sub via compression and column-wise packing, Josh accelerated research on our Apache Iceberg tables by Z-ordering the data files, and Hadrian engineered an out-of-process Stall Monitor using shared memory to capture stack traces during latency spikes.

See what they built via the link in bio.

08/04/2026

Applications for 2027 summer internships and new grad roles are now open in New York, London, and Singapore.

Join a team tackling complex technical problems in software engineering and quantitative research. Explore current openings and learn more about student opportunities:
🔗 hudsonrivertrading.com/student-opportunities?gh_src=fea6b2b61us

07/09/2026

We just wrapped up our global Kids Day celebrations, and every year, they somehow get even better. It was such a joy to welcome mini HRTers into our offices for a day of creativity, curiosity, and a little bit of chaos.

One crowd favorite was the froyo truck in NYC. And no—we didn't bring it in for Kids Day! It's always here… for the adults. 😉

Thanks to everyone who helped make this year’s celebrations so much fun around the world. 🎉

07/09/2026

We recently wrapped up our global Kids Day celebrations, and every year, they somehow get even better. It was such a joy to welcome mini HRTers into our offices for a day of creativity, curiosity, and a little bit of chaos.

One crowd favorite was the froyo truck in NYC. And no—we didn’t bring it in for Kids Day! It’s always here… for the adults. 😉

Thanks to everyone who helped make this year’s celebrations so much fun around the world. 🎉

03/13/2026

To reach the servers at Lefdal Mine Data Centers, you have to tunnel into a Norwegian mountain.

Inside lies one of the most unusual HPC environments in the world, where cold seawater from a nearby fjord cools dense GPU clusters designed for large-scale AI workloads — powered entirely by renewable energy.

Environments like Lefdal make it possible for HRT to scale the infrastructure behind our research. Our deployment includes direct-liquid-cooled racks of NVIDIA Blackwell GPUs operating above 125 kW per cabinet, integrated with high-speed interconnects and bespoke storage systems built to keep our research pipelines saturated.

In this video, we take a look inside the mine at the compute and networking infrastructure powering HRT’s cutting-edge research: https://youtu.be/kWPl7Awtq5U

03/12/2026

2028 grads, join us for Inside HRT!

This immersive three-day program invites undergraduate STEM students to our NYC headquarters for engaging tech talks, interactive panels, and hands-on workshops.

Inside HRT is designed for students who are curious about quantitative finance but have little or no prior exposure to the industry. The program aims to provide essential learning that removes barriers and creates opportunities for promising STEM students. No finance experience necessary!

Program Details:
📅 May 18 - 20, 2026
📍 New York City
📝 Apply by March 26, 2026

If you’re a STEM student with a passion for technology, learning, and problem solving, apply here: https://brnw.ch/21x0GUd

03/03/2026

We just open-sourced ‘slang-server’, a SystemVerilog language server that we built for intelligent code navigation and linting across hardware codebases.

Our latest blog post breaks down how we work with open source at HRT, and more broadly invest in developer efficiency. It also includes technical breakdowns of how we used the Slang library to build the language server, and how a series of targeted optimizations led to sub-second indexing across thousands of files.

Check it out on the HRT Beat:

At HRT, pushing technical boundaries often means moving beyond the constraints of standard software. Some of the ways we accomplish this are by deploying FPGA and ASIC solutions which allow us to reach latency and throughput levels unattainable with general-purpose CPUs. We build the custom logic ne...