Build, configure, and maintain Linux and AIX servers;
Apply OS updates, patches, and security hardening baselines;
Monitor system health (CPU, memory, I/O, filesystem) and respond to alerts;
Perform patching and kernel updates within maintenance windows;
Troubleshoot authentication issues (SSSD, PAM, LDAP, Kerberos) and sudo policies;
Manage backup solutions and perform regular restore testing;
Track end-of-life systems/packages and plan upgrades or migrations;
Manage SSH keys, certificates, and secure configurations;
Diagnose and resolve performance issues (load, IOPS, network, memory);
Maintain documentation (runbooks, CMDB, asset data);
Coordinate with network and storage teams (bonding, VLANs, multipath);
Tune monitoring systems to reduce alert noise;
Support application teams with dependencies and package management;
Enforce security policies (file permissions, SELinux/AppArmor);
Participate in disaster recovery exercises and validation;
Provide operational KPIs and reporting.

Why we think you will love working here:
With us you count as a person, our doors are always open.
We live the Qualysoft Team Spirit and stand for transparency!
Fresh wind and new ideas are welcome, because standstill is a foreign word at Qualysoft.

Unix/Linux Support Analyst

Key skills