Software Engineer – C++

Wehrtyou; Greater London; On-site; GBP 150,000 - 225,000; Full time

Benefits offered by this job

Performance bonuses

Comprehensive benefits

Job summary

Hudson River Trading (HRT) seeks a C++ Engineer to join our live trading platforms. C++ is at the center of our research infrastructure, and you will work on high-performance, fault-tolerant systems powering trading across global markets.

You will collaborate with researchers, traders, and hardware specialists to optimize latency, implement scalable infrastructure, and integrate with FPGA/ASIC interfaces. Strong UNIX/Linux experience and proven problem solving are essential.

Qualifications

• Advanced C++ experience required, daily use preferred.
• Knowledge of UNIX operating systems (we use Linux) and network communication.
• Superior design, debugging, and problem solving skills.
• Capable of solving complex engineering problems independently and guiding others.

Responsibilities

• Develop and optimize infrastructure for market data, order entry, and execution logic across asset classes.
• Design fault-tolerant, low-latency systems for live trading and recover from hardware failures.
• Profile and improve performance-critical code for throughput and latency in production.
• Build and maintain infrastructure that supports distributed networks and scalable research workflows.
• Interface with specialized hardware such as FPGAs and ASICs used in trading systems.

Skills

Advanced C++

UNIX/Linux

Problem solving

System design

Architecture knowledge

Education

Bachelor's degree in CS/CE or related

Job description

At Hudson River Trading (HRT), C++ is at the center of our live trading systems and research infrastructure. Our C++ engineers build the highly performant, fault-tolerant systems that power trading across global markets. HRT's distributed system is on the Pareto frontier of latency and throughput, giving you limitless opportunity to leverage your deep knowledge of C++, OS internals, CPU architecture, and networking hardware and protocols. You'll work side-by-side with researchers, traders, and hardware specialists, implementing solutions where every microsecond matters.

Our bottom-up approach to projects and our highly collaborative environment empower talented engineers to make significant contributions and see their impact daily. At HRT, you'll be challenged to solve complex problems in a fast-paced, highly competitive industry, surrounded by some of the brightest minds in the field.

C++ Engineers at HRT work on a wide variety of projects. Examples include:

• Develop and optimize infrastructure for market data, order entry and execution logic, spanning tens of asset classes including options, equities, futures, crypto, and fixed income.
• Design fault-tolerant, low-latency systems for live trading, including encoding/prioritization of data over WAN links and recovery from hardware failures.
• Profile and improve performance-critical code for both throughput and latency in production environments.
• Build and maintain infrastructure that drives products including client-facing wholesale and SDP platforms, distributed network filesystems, and scalable research workflows.
• Write software that interfaces with specialized hardware such as FPGAs and ASICs used in trading systems.

Profile

• You're one of the top devs in your current organization, as measured by productivity, technical capability, and helpfulness to other devs.
• You are capable of solving complex engineering problems independently and providing technical advice for others in areas of your expertise.
• You can make progress on long-term architectural projects while troubleshooting smaller tasks and bug fixes with agility.
• You can describe software designs at a high level (the abstract interface), low level (step-by-step algorithm), or anywhere in between.
• You are always looking for ways to make systems better.

Qualifications

• 1+ years of professional work experience
• Bachelor's degree in Computer Science, Computer Engineering, or related field
• Superior design, debugging, and problem solving skills
• Advanced C++ experience is required, daily use preferred
• Knowledge of UNIX operating systems (we use Linux), system/processor performance, and network communication

The estimated base salary range for this position is 200,000 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.

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