I have 8+ years of experience in DevOps & Server Administration
DevOps:-
>>> Configuration managment tool (Ansible, Puppet, Salt, Chef)
>>> Containerization (Docker, LXC)
>>> Container Orchestration : Kubernetes
>>> Infrastructure as code: Terraform & KaaS(Kubernetes as a Service)
>>> Monitoring tools (Prometheus, Grafana)
>>> Cloud (Gcp, Aws, Azure, OpenStack)
>>> Programming (C, C++ , Go, Python, shell script, )
System Engineer (Server Administration) :-
>>> Operating System
1- Linux: Ubuntu, CentOs, Debian, Fedora, Redhat, Alpine, Linux Mint, Arch Linux, Gentoo
2- Unix: BSD, FreeBSD, Mac
3- Windows: XP, Vista Win(7,8,10,11)
>>> Monitoring
>>> Firewall & Security(Ufw, Iptables, CSF)
>>> WebServer: Apache, Nginx, LightSpeed etc..
>>> MailServers: Postfix, Exim, Sendmail
>>> All types of Panels: WHM, Cpanel, Plesk, VistaCp, CentOS Web Panel CWP, ISPconfig, Webmin ,ZPanel, OpenPanel, Sentora etc..
>>> Database Server: Mysql, Mariadb, MongoDb
>>> PHP
>>> Server Optimization, Installation & Troubleshooting
>>> DNS
>>> Wordpress, Magento(1&2), Opencart, others CMS Installation & Troubleshooting