Senior Linux Systems Administrator

Senior Linux Systems Administrator responsible for the administration, security/hardening, monitoring, and evolution of production Linux infrastructures, with involvement in supporting Java applications, MySQL databases, and VMware environments. Key tasks include virtualization management (VMware), NAT/firewall and network rule configurations, infrastructure troubleshooting, and support for Java applications deployed on WildFly. Will develop Bash scripts for operational automation, manage digital certificates/keystores/truststores, craft SQL queries for analysis, and provide basic Windows server administration when needed. Required to have 3-4+ years of Linux administration experience, solid knowledge of Linux distributions (Red Hat/CentOS/Rocky/Ubuntu or similar), VMware, Bash scripting, MySQL/InnoDB Cluster, SQL, Zabbix, firewalls and networks, certificate management, and experience supporting Java apps on WildFly or similar app servers. Additional valued skills include Telecom environments experience, messaging platforms (SMS/RCS), high availability, and infrastructure-as-code. The role emphasizes autonomy, problem-solving, client-service orientation, analytical thinking, teamwork, proactivity, and continuous improvement. Availability for on-call rotations is stated. The company offers a dynamic, inclusive, and flexible work environment with modern technologies and a global growth mindset.