worked mainly on administering php applications for the last few years
Delivering code and keeping products up to date
virtualisation, docker, etc. on bare metal

I have an experience in the setup, configuration and maintenance of firewalls, network and security monitoring software, as well as a variety of related network hardware L2/L3.
Creating corporate email service based on Zimbra suite software.
Similarly Gitlab (CI/CD),Ansible,Docker,KVM-qemu,XEN
Extensive knowledge in High-availability clustering virtual services, clusterfile systems (GlusterFS, CEPH),writing scripts to automate tasks (shell, tr, awk, sed, expect).