Linux System Admin

CO-WORKER TECHNOLOGY AB; Södertälje kommun; On-site; SEK 600,000 - 900,000; Full time

Job summary

CO-WORKER TECHNOLOGY AB in Sweden seeks an experienced Linux System Administrator focused on automation, architecture, and platform engineering to design, build, and maintain a GPU-enabled Remote Desktop environment for HPC workloads.

The role uses Rocky Linux/RHEL, X11/Xfce4, NICE DCV, EnginFrame, and SLURM; you will implement IaC with Ansible, ensure security and performance, and collaborate with HPC and Infrastructure teams.

Qualifications

• Solid experience as a Linux System Administrator, ideally with Rocky Linux or RHEL.
• Strong automation and Infrastructure-as-Code (IaC) skills, preferably using Ansible.
• Scripting proficiency in Bash; Python is an advantage.
• Experience with CI/CD pipelines and Git/GitLab.
• Understanding of X11, desktop environments (Xfce4, GNOME), and remote rendering/display protocols.
• Knowledge of networking, security, and monitoring tools (Prometheus observability preferred).
• Strong architectural mindset to design scalable and maintainable systems.
• Ability to work independently and own complex environments.

Responsibilities

• Design, deploy, and maintain a Linux-based GPU-enabled Remote Desktop environment (DCV, EnginFrame, SLURM, X11, Xfce4 on Rocky Linux).
• Develop automation and IaC using Ansible to ensure consistent deployments.
• Ensure security, scalability, performance, and maintainability of the platform.
• Collaborate with HPC and Infrastructure Engineering teams.
• Document architecture, configurations, deployment workflows, and procedures.

Skills

Linux admin

Automation

Ansible

Bash scripting

Python

CI/CD

Git/GitLab

X11/Xfce

Networking & security

Observability with Prometheus

Tools

NICE DCV

EnginFrame

SLURM

Docker

Podman

Open OnDemand

Prometheus

Job description

We are seeking an experienced Linux System Administrator with a strong focus on automation, architecture, and platform engineering to design, build, and maintain our Remote Desktop (VDI) environment.

This infrastructure supports GPU-accelerated remote desktops for pre- and post-processing of HPC workloads, including automotive simulations, visualization, and rendering. The platform runs on Rocky Linux / RHEL, uses X11 and Xfce4, and leverages NICE DCV, EF Portal (EnginFrame), and SLURM to deliver high-performance graphical sessions remotely.

Key Responsibilities

• Design, deploy, and maintain a Linux-based GPU-enabled Remote Desktop environment (DCV, EnginFrame, SLURM, X11, Xfce4 on Rocky Linux).
• Develop automation and Infrastructure-as-Code (IaC), primarily using Ansible, to ensure consistent and repeatable deployments.
• Ensure security, scalability, performance, and long-term maintainability of the platform.
• Collaborate closely with HPC and Infrastructure Engineering teams.
• Document architecture, configurations, deployment workflows, and operational procedures.

Required Qualifications

• 1. Solid experience as a Linux System Administrator, ideally with Rocky Linux or RHEL.
• 2. Strong automation and Infrastructure-as-Code (IaC) skills, preferably using Ansible or similar tools.
• 3. Proficiency in scripting, primarily Bash; Python is considered an advantage.
• 4. Experience with CI/CD pipelines and version control systems such as Git and GitLab.
• 5. Understanding of X11, desktop environments (Xfce4, GNOME), and remote rendering/display protocols.
• 6. Good knowledge of networking, security, and monitoring tools, with Prometheus-based observability being preferred.
• 7. Strong architectural mindset with the ability to design scalable and maintainable systems.
• 8. Ability to work independently and take ownership of complex environments.

Nice to Have

• Experience working with HPC environments and the SLURM workload manager.
• Experience with NICE DCV, EnginFrame (EF Portal), Open OnDemand, or similar remote visualization platforms.
• Familiarity with container technologies such as Docker and Podman, as well as monitoring and observability tooling