OS: Linux/Сentos, Ubuntu
Programming: Bash, Python, Git
Methodologies: DevOps, ITIL, Agile
Cloud: AWS, GCE
Containers: Docker, Kubernetes
DB: MySQL, PostgreSQL, MongoDB, Redis, ElasticSearch
Web: Nginx, Apache, uWSGI, php-fpm
Configuration Management: Chef, Saltstack, Ansible
Monitoring: Zabbix, Grafana, Prometheus
CI: TeamCity, Jenkins
BigData: Cloudera, HDFS, Impala, Kafka, Tableau
Networking: Cisco, Mikrotik, IPSec, OSPF, L2TP, OpenVPN