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

• IPSec VPN configuration experience
• Programming experience in PHP
• Experience with infrastructure backup/restore strategies
• Familiarity with network troubleshooting (tcpdump, ss, etc.)
• Exposure to other container runtimes (Docker, Podman)

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

You can send your resume to [email protected]

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