Senior Linux System Administrator – Global Hybrid Infrastructure

About the role

We are looking for a Senior Linux System Administrator to join a small, high‑impact technical team responsible for maintaining and modernising a global hybrid infrastructure that spans physical servers, cloud instances and Kubernetes clusters. You will own the reliability, security and performance of the platform that powers an enterprise SaaS solution used worldwide.

Key responsibilities

• Administer and monitor production Linux systems across on‑premise and cloud environments.
• Manage and troubleshoot cloud platforms such as AWS, Oracle Cloud or GCP.
• Support Docker‑based and Kubernetes‑based deployments.
• Handle network administration tasks including VPN, DNS, firewalls and routing.
• Maintain Apache web server, PostgreSQL databases and Postfix mail services.
• Own security, backup and disaster‑recovery procedures.
• Automate infrastructure tasks using Bash and configuration‑management tools (e.g., Ansible).

Required profile

• 7+ years of production Linux administration experience.
• Strong background with RHEL or AlmaLinux.
• Hands‑on experience with at least one major cloud platform.
• Practical experience with Docker and Kubernetes.
• Fluent English and proven remote collaboration skills.
• Proactive, structured and calm‑under‑pressure mindset, comfortable wearing many hats on a small team.

Required skills

• Linux (RHEL/AlmaLinux)
• AWS, Oracle Cloud, or Google Cloud Platform
• Docker
• Kubernetes
• Apache
• PostgreSQL
• Postfix
• Bash scripting
• Ansible
• VPN, DNS, firewalls, routing