Principal Site Reliability Engineer

JR United Kingdom; London; On-site; GBP 70,000 - 120,000; Full time

Job summary

A leading high-frequency trading firm is seeking a Site Reliability Engineer (SRE) to enhance their ultra-low-latency trading platform. The role involves designing production tools, ensuring system reliability, and collaborating with teams in a fast-paced environment. Ideal candidates will have strong programming skills, expertise in Linux, and experience with AWS infrastructure.

Qualifications

• Strong programming skills in Python and understanding of C/C++.
• Deep expertise in Linux system internals and performance tuning.
• Experience with AWS infrastructure and production monitoring systems.

Responsibilities

• Design and develop scalable production tools for deployment and automation.
• Ensure reliability and efficiency of trading systems through automation.
• Collaborate with developers and traders to support live trading.

Skills

Python

Linux system internals

AWS infrastructure

monitoring

networking fundamentals

Education

Top-tier engineering program

Tools

Terraform

Ansible

Bash

Job description

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Principal Site Reliability Engineer, London

Client: Albert Bow

Location: London, United Kingdom

Job Category: Other

EU work permit required: Yes

Job Views:

2

Posted:

23.05.2025

Expiry Date:

07.07.2025

Job Description:

Job Title: Site Reliability Engineer (SRE) – High-Frequency Trading Infrastructure

Location: Onsite – New York City, London, or Singapore

Our Client, a leading high-frequency trading firm, is seeking a Site Reliability Engineer (SRE) to architect and build next-generation production tools and infrastructure for their ultra-low-latency trading platform. This is a high-impact, mission-critical role focused on reliability, scalability, and performance in one of the most competitive and technologically advanced industries.

About the Role

This opportunity is ideal for an experienced SRE who thrives in production-critical environments. The successful candidate will join a high-caliber team of engineers and work on automating, scaling, and securing systems that drive global trading operations.

Key Responsibilities

• Design and develop scalable production tools for deployment, monitoring, and infrastructure automation.
• Ensure the reliability and efficiency of trading systems through proactive automation and tooling.
• Collaborate with developers and traders to support the live trading environment.
• Manage and optimize configuration and deployment pipelines across AWS and on-premise infrastructure.
• Implement observability and monitoring systems to enable rapid detection and resolution of issues.
• Enhance fault tolerance and high availability for mission-critical systems.
• Provide infrastructure support for both C++ and Rust-based trading platforms.

Core Qualifications

• Strong programming skills in Python, with the ability to read and understand C/C++.
• Deep expertise in Linux system internals and performance tuning.
• Proven experience with AWS infrastructure and/or on-premise cluster management.
• Hands-on knowledge of monitoring, logging, and alerting systems for production environments.
• Solid understanding of networking fundamentals, including TCP/IP and systems performance.

Preferred Experience

• Familiarity with Infrastructure as Code (IaC) tools such as Terraform or Ansible.
• Background in low-latency or high-performance computing environments.
• Proficiency with scripting languages like Bash for automation tasks.

What Sets You Apart

• Track record of excellence from a top-tier engineering program or recognized domain expertise.
• Demonstrated ability to perform in fast-paced, production-critical settings.
• Strong communication skills and a collaborative mindset to work closely with infrastructure, trading, and development teams.

Why This Role?

This is a rare opportunity to be at the forefront of infrastructure innovation within a high-frequency trading environment. You’ll work alongside some of the brightest minds in the field, delivering systems that operate at massive scale and speed. If you’re passionate about building high-performance infrastructure and solving complex engineering challenges, this role is for you.

Location requirement: This is a full-time, in-office position with openings in;