Linux Systems Engineer - Low-Latency Trading Infrastructure | Leading Global Market Maker

Techfellow Limited; New York (NY); On-site; USD 150,000 - 325,000; Full time

Job summary

Techfellow Limited is seeking a Systems Engineer with 5-12 years of hands-on Linux/Unix experience to enhance their low-latency trading infrastructure. The role focuses on automation using Python and Ansible, troubleshooting production issues, and ensuring the reliability of mission-critical platforms.

A strong background in networking protocols and experience in high-pressure environments are crucial. The position offers an attractive compensation package and the opportunity to work in a dynamic, tech-driven environment.

Qualifications

• 5-12 years of hands-on experience in Linux/Unix systems engineering.
• Strong practical Python experience for automation.
• Familiarity with configuration management using Ansible.

Responsibilities

• Support Linux-based infrastructure for low-latency trading.
• Automate configuration and management tasks using Python and Ansible.
• Investigate production issues across critical Linux platforms.

Skills

Linux/Unix systems engineering

Python programming

Ansible

Troubleshooting skills

Networking protocols

Tools

Git

Job description

[Up to c. $325k Comp Package | Office-Led Working]

Role Overview

We’re representing a leading electronic trading firm with a global platform built around high-performance, mission-critical Linux infrastructure. This is a hands-on systems engineering role focused on automating, tuning and improving the platforms that support live trading across global markets. The business is scaling heavily in the US, invests deeply in technology and gives strong engineers the chance to make measurable improvements to latency, reliability and transaction performance...

Key Responsibilities

• Support and improve Linux-based infrastructure powering low-latency trading systems
• Use Python, Ansible and scripting to automate configuration, tooling and large-scale systems management
• Investigate and resolve production issues across mission‑critical Linux platforms
• Contribute to performance and reliability improvements, including latency reduction and transaction-time optimisation
• Manage infrastructure changes, configuration updates and server lifecycle activity
• Work closely with systems engineering, infrastructure and technology teams across global offices
• Support longer-term platform planning, capacity forecasting and infrastructure improvement work

What You’ll Bring…

• 5-12 years’ deep hands‑on Linux/Unix systems engineering experience in production environments
• Strong practical Python experience for automation, tooling and infrastructure scripting
• Good Ansible experience for configuration management across Linux-based platforms
• Strong troubleshooting skills across OS, hardware, services and network‑adjacent issues
• Familiarity with Git and standard software engineering workflows
• Experience working in high-pressure, high-availability environments where infrastructure changes have real business impact
• Solid understanding of core networking protocols including TCP, UDP, IP, DHCP, NFS, TFTP and NTP
• Exposure to high-performance computing, large-scale distributed systems or latency-sensitive platforms
• Exposure to BIOS-level configuration, server builds or hardware/platform provisioning
• Ability to balance daily production support with longer-term infrastructure project work
• (Preferred) Experience supporting trading, market data, exchange connectivity or low-latency infrastructure
• (Preferred) Exposure to NAS environments or datacentre-based infrastructure