Junior Trading Systems Engineer

Hudson River Trading; Greater London; On-site; GBP 91,000 - 121,000; Full time

Job summary

Hudson River Trading seeks a Junior Trading Systems Engineer to join the Trading Systems Infrastructure team. You will work on real-time production trading environments, focusing on high availability, high throughput, and ultra low-latency solutions.

A passion for coding, automation, and learning new skills is essential in a fast-paced setting. You will help manage Linux-based trading infrastructure, troubleshoot issues, plan installations, deploy applications, and contribute to documentation

Qualifications

• 2+ years of experience managing Linux systems and networking basics.
• Experience installing/configuring Linux systems, from hardware to kernel to applications.
• Familiarity with configuration management tools (SaltStack, or similar).
• Proven programming experience and ability to explain design decisions.
• Basic bash scripting.
• Experience with JIRA and cross‑functional work.
• Cloud exposure with AWS or GCP is desirable but not required.

Responsibilities

• Manage worldwide Linux-based trading infrastructure and complex technical projects.
• Troubleshoot hardware and software issues across the stack.
• Plan and implement system installations and upgrades.
• Deploy, configure, and test internal and external applications.
• Improve documentation and reduce technical debt.
• Benchmark trading stack performance with SMEs.
• Join on-call rotation for trading hours and weekends.

Skills

Linux administration

Programming

Bash scripting

Networking fundamentals

Communication

Cloud experience

JIRA

Tools

SaltStack

Puppet

Ansible

Chef

CFEngine

Debian/Ubuntu

Job description

Hudson River Trading (HRT) is seeking a Junior Trading Systems Engineer to join our growing Trading Systems Infrastructure team. This team designs, builds, and maintains the infrastructure that powers our global trading, and is responsible for ensuring optimal performance and uptime of the ultra low-latency operating systems, automation software, and development tools that allow our trading strategies to run worldwide 24/7.

As a Junior Trading Systems Engineer, you'll work on projects focusing on our real-time production trading environment and tackle problems that require high availability, high throughput, and ultra low-latency solutions. The ideal candidate possesses a passion for coding and automation, is eager to learn new skills to help build an elegant stack, and has the ability to handle challenging technical issues within a dynamic and fast-paced environment.

Responsibilities

• Manage worldwide Linux-based trading infrastructure by contributing to the planning and execution of complex technical projects and tasks
• Troubleshoot hardware and software issues across the stack
• Plan and implement system installations and upgrades
• Deploy, configure, and test internal and external applications
• Improve documentation and reduce technical debt
• Benchmark the performance of the trading stack, working with subject matter experts across the organization
• Join an on-call rotation schedule to cover trading hours and weekend shifts, as needed

Qualifications

• 2+ years of relevant experience managing Linux systems: you can install packages, manage users, control services, and know where to look for system logs, and you understand TCP/IP networking, default gateways, and how to debug connectivity problems
• Familiarity installing and configuring Linux systems, from hardware and networking to kernel to applications
• Knowledge of Debian/Ubuntu is desirable
• Basic familiarity with configuration management tools, particularly SaltStack - some knowledge of Puppet, Ansible, Chef, or CFEngine is also desirable
• Proven programming experience: you don't just know what big-O notation is, you've also built working software and can explain and defend your design
• Basic shell (bash) scripting experience
• Experience using JIRA
• Strong cross-functional communication and organization skills
• Experience with production systems, as well as some cloud experience in AWS or GCP, is desirable but not required

The estimated base salary range for this position is 120,000 to 160,000 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 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 during any stage of the hiring process, we reserve the right to immediately disqualify your candidacy or rescind any job offers extended.