Senior Linux Beheerder

Description

The company runs and reimagines mission-critical technology systems for leading businesses, combining proven expertise with AI-powered insight to support smarter decisions and faster innovation.

The work is purposeful and sits in a flexible, supportive environment that puts employee well-being first.

Responsibilities

• Act proactively to keep the Linux infrastructure and application environment stable, reliable and secure, and keep it monitored and up to date.
• Manage and maintain Linux systems and platforms such as Red Hat Enterprise Linux (RHEL), Ubuntu and/or other distributions.
• Contribute to ongoing projects such as automated VM deployment, configuration management, Infrastructure as Code (IaC) and the rollout of RBAC.
• Help users and colleagues spot incidents, vulnerabilities and security risks on the Linux platform, and make sure they are handled correctly and on time.
• Support technical changes and problems by picking up incidents, outages and changes, and deliver structural fixes.
• Monitor the performance, capacity, availability and stability of the Linux infrastructure, analyse possible issues and suggest improvements.
• Manage and maintain Linux systems across configuration, hardening, logging, monitoring, networking and security.
• Deepen your knowledge of the Linux platform's architecture and security where needed, and occasionally advise infrastructure teams on complex technical questions.
• Drive life cycle management in the department so Linux systems are replaced, migrated or upgraded on time.
• Run patch management for Linux systems, including planning, testing and rolling out security and regular updates.
• Carry out OS version updates and upgrades, and guide migrations to new Linux versions where needed.
• Automate operational tasks further, for example with Ansible, Bash, Python or other suitable tooling.
• Help improve standardisation, security and manageability across the Linux infrastructure.

Requirements

• You work and think at HBO level.
• Bij voorkeur: a completed ICT education.
• You have at least 3 years of relevant experience in a similar role in Linux and/or infrastructure management.
• You hold relevant Red Hat certifications, such as Red Hat Certified System Administrator (RHCSA).
• You hold the Red Hat Certified Engineer (RHCE) certification.
• You have proven knowledge and experience with Red Hat Enterprise Linux (RHEL), and preferably with other Linux distributions too.
• Bij voorkeur: other Linux distributions alongside RHEL.
• You have experience running enterprise Linux servers, including installation, configuration, troubleshooting, hardening and lifecycle management.
• You know systemd, networking, storage, filesystems, DNS, SSH, and user and permission management.
• You have experience with Linux patch management, including planning, testing and rolling out security and regular updates.
• You have experience with RHEL lifecycle management, including version upgrades, migrations and retiring outdated systems.
• You have experience with Red Hat Satellite or similar tooling for managing, patching and configuring Linux systems.
• You have scripting and automation skills, for example in Bash, Python and Ansible.
• You are strongly driven to automate, standardise and simplify operations work.
• You know Linux security and hardening, including SELinux, sudo, SSH hardening and access control.
• You have experience managing Linux systems in a virtual infrastructure, for example on Nutanix, VMware and/or Hyper-V.
• You know ITIL 4 and the principles of incident, change and problem management.
• You have technical knowledge of data centre and infrastructure environments, and preferably experience with cloud and hybrid infrastructures.
• Bij voorkeur: experience with cloud and hybrid infrastructures.
• You are analytical, work independently, and take responsibility for the quality, security and continuity of the Linux infrastructure.
• Gewenst: experience with Red Hat Satellite and/or Red Hat Insights.
• Gewenst: experience with Ansible Automation Platform and automating Linux administration.
• Gewenst: knowledge of Infrastructure as Code (IaC), for example Terraform.
• Gewenst: knowledge of container technologies such as Podman, Docker and/or Kubernetes/OpenShift.
• Gewenst: basic knowledge of Agile/Scrum and experience working in an Agile environment.
• Gewenst: experience with monitoring, logging and performance analysis of Linux systems.
• Gewenst: knowledge of network and security principles in enterprise Linux environments.
• Gewenst: experience managing Linux systems in cloud environments.

Conditions

You work in a dynamic, hybrid-friendly culture.

The company welcomes people of all cultures, backgrounds and experiences, and encourages applications even if you do not meet every requirement.

Benefits

• Be Well programmes that support your financial, mental, physical and social health.
• Tools to chart your career path, personal development goals aligned with your ambitions, and continuous feedback.
• Learning opportunities, including certifications with Microsoft, Google and Amazon, coaching and hands-on experience.