Location: Csíkszereda, Romania (hybrid) - or remotely Europe

We’re seeking an experienced Systems Administrator to manage and maintain our Linux-based infrastructure. This is a senior position.

Responsibilities

Install, configure, maintain, and troubleshoot Linux servers and services
Administer MySQL/MariaDB databases, including installation, replication, backups, recovery, performance tuning, and monitoring
Manage ZFS storage, snapshots, replication, and backup strategies
Maintain LXC container environments and supporting infrastructure
Configure and support networking components, including TCP/IP, routing, DNS, VPNs, and Linux firewalls (iptables/nftables)
Monitor infrastructure using Prometheus, Grafana, exporters, and alerting systems, and continuously improve observability
Implement and maintain security best practices, including system hardening, access control, patch management, certificate management, and vulnerability remediation
Support and maintain ISO 27001 operational and security controls
Develop and maintain automation scripts and tools to simplify operational tasks and improve reliability
Investigate and resolve infrastructure, networking, storage, database, and performance issues
Maintain technical documentation, operational procedures, and disaster recovery plans
Collaborate with development teams and external vendors to support infrastructure-related projects and production services

Required Skills

Strong Linux system administration experience
Solid understanding of TCP/IP networking, routing, DNS, VPNs, and firewalls
MySQL/MariaDB administration and replication
Experience with ZFS and LXC/Incus (or similar virtualization/container technologies)
Infrastructure monitoring and observability (Prometheus, Grafana, etc.)
Shell scripting and infrastructure automation
Knowledge of security best practices and ISO 27001 principles
Excellent analytical, troubleshooting, and problem-solving skills
Ability to work independently and manage multiple operational priorities
Good command of English language

Nice to have

For more details about the role and responsibilities, please visit https://www.esagaming.com/careers

You can send your resume to hr@esagaming.com

Systems Administrator

Job Description