Ubuntu

DXC Technology

This role manages infrastructure across client environments, requiring hands-on expertise in Windows and Linux systems, Active Directory, AWS, and patching tools, combined with the ability to lead a team and own complex technical projects end-to-end. It suits experienced infrastructure engineers who want to step into a leadership position while staying technically deep.

Listed on DXC Technology’s careers site · Apply there ↗

Cigna

Saint Louis, MO

This role supports large-scale logging and monitoring infrastructure for a major health services company, combining Splunk and Cribl administration with cloud infrastructure and networking expertise. It suits senior engineers who excel at designing and troubleshooting complex hybrid deployments and can mentor teams across technical and business challenges.

Listed on Cigna’s careers site · Apply there ↗

NVIDIA

Full-time · $124,000 – $195,500

NVIDIA seeks an operations engineer to support their high-performance computing infrastructure, managing user issues, monitoring system health, and maintaining documentation for a team powering semiconductor and engineering workflows. This role suits someone with Linux systems administration experience who enjoys troubleshooting at scale and working directly with technical users.

Listed on NVIDIA’s careers site · Apply there ↗

CrowdStrike

Full-time · $140,000 – $215,000

A senior software engineering role building test infrastructure and automation tools for CrowdStrike's Linux sensor platform. This suits engineers with deep Python and Jenkins expertise who enjoy solving complex compatibility problems across diverse Linux distributions and want to improve quality and velocity in a mature security product.

Listed on CrowdStrike’s careers site · Apply there ↗