Linux Systems Engineer — High-Performance Trading Infra

Autonomai Recruitment; Greater London; On-site; GBP 70,000 - 110,000; Full time

Job summary

Autonomai Recruitment is seeking a Linux Systems Engineer to design, build, and operate the high-performance Linux infrastructure powering trading and research environments. You will advance automation, observability, and reliability across global platforms.

The role requires strong Linux administration, scripting in Python and Bash, and solid networking knowledge. You will work closely with software, DevOps, and trading teams to deliver scalable, latency-sensitive systems.

Qualifications

• Strong Linux systems engineering experience, ideally in trading/fintech/cloud infrastructure or other performance-critical environments.
• Excellent hands-on Linux administration, troubleshooting, performance tuning and production operations.
• Strong programming and scripting skills, particularly Python and Bash.
• Solid understanding of networking fundamentals (TCP/IP, UDP, DNS, routing, switching, troubleshooting).
• Experience with configuration management, infrastructure automation and deployment tooling.
• Familiarity with observability tooling, monitoring, alerting, logging and tracing.
• Strong diagnostic ability across application, OS, network and hardware layers.
• Pragmatic, ownership-driven mindset with excellent communication and collaboration skills.
• Comfort in a fast-paced, mission-critical environment where reliability and performance impact the business.

Responsibilities

• Design, build, maintain and optimise Linux-based production infrastructure supporting trading and research systems.
• Develop automation, tooling and operational workflows using Python and Bash.
• Manage and improve Linux server environments, including provisioning, configuration, patching, hardening and performance tuning.
• Support mission-critical production systems, including incident response, troubleshooting and root-cause analysis.
• Build and maintain observability solutions across metrics, logging, tracing and alerting.
• Improve deployment pipelines, configuration management, release processes and infrastructure-as-code practices.
• Collaborate with software engineers, DevOps, networking, data centre and trading teams to solve complex technical problems.
• Conduct performance analysis, capacity planning, stress testing and system optimisation.
• Identify and eliminate operational inefficiencies through automation and reusable engineering solutions.
• Contribute to the design of resilient, scalable infrastructure for latency-sensitive workloads.

Skills

Linux systems engineering

Python

Bash

Networking fundamentals

Configuration management

Observability tooling

Diagnostics

Incident response

Performance tuning

Job description

Autonomai Recruitment is seeking a Linux Systems Engineer to design, build, and operate the high-performance Linux infrastructure powering trading and research environments. You will advance automation, observability, and reliability across global platforms.

The role requires strong Linux administration, scripting in Python and Bash, and solid networking knowledge. You will work closely with software, DevOps, and trading teams to deliver scalable, latency-sensitive systems.