Senior Linux Engineer

Global Foreign Exchange #067

Senior Linux Engineers work within the core IT groups designing and maintaining infrastructure services central to company infrastructure and external business units enabling quants, researchers, and high-performance, low-latency trading platforms on-prem and co-located in the Exchanges.

The role has a strong focus on standardization of system performance and optimization of bare metal, on-prem virtual, and cloud instances.

Primary Accountabilities/Responsibilities:

Linux OS engineering using SRE/DevOps methodologies
Architect and manage various research platforms for quantitative analysis
Optimize and support HPC trading systems
Troubleshoot complex storage, OS, and networking issues
Build automated multi-tenant provisioning and configuration management of Linux systems
Follow Linux best practices and engineering
Enforce consistent standards of sound principles
Collaborate with other teams and business units to use Linux software and services
Monitor system performance and metrics, fine tuning systems for optimization

Job Requirements:

3 to 5 years’ experience as Linux Engineer, at least 2 at the senior level
Experience with Red Hat and Ubuntu flavors of Linux
Experience with configuration management and orchestration tools like Ansible and Jenkins
Experience with various file systems, such as XFS, ext4, and ZFS
Experience with Linux performance tuning and Kernel optimization
Experience supporting container services such as docker, podman, or Kubernetes
Experience with vSphere hypervisor and provisioning
Experience with cloud provisioners and cloud services
Experience with hardware in general and bare metal provisioning with PXE/Kickstart
Experience with 10/25GE fiber network cards, firmware and drivers, kernel bypass
Experience with Git, CI/CD pipelines, IaaC, and code review workflows
Python and shell scripting
Solid understanding of Linux access mechanisms, such as PAM, SSSD, Kerberos, SSH, and sudo
Sold understanding of networking and popular protocols, such as HTTP, DNS, DHCP, NTP, PTP and generic TCP/UDP usage and package captures

Physical requirements/Working conditions:

Climate controlled office environment
Minimal physical requirements other than occasional light lifting of boxed materials
Dynamic, time-sensitive environment

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