Cloud Providers: Amazon Web Services, Oracle Cloud Infrastructure, Google Cloud Platform, Yandex.Ru Cloud, Mail.Ru Cloud, OpenShift Cloud
CI/CD: Collect & Plan Requirements, Fetch Code, Build App Modules, Test Automation, Release Versioning, Zero Downtime Automatic Deployment, Multiple Environments Operation, Application Monitoring & Alerting
Linux Fundamentals: Amazon Linux/Debian/Ubuntu/Alpine/RedHat/CentOS, Bash Scripting, Firewalls, Networking, Protocols TCP/UDP, PAM Security, Kernel Modules, Virtualization/KVM
Monitoring: AWS CloudWatch, Prometheus, Grafana, ElasticSearch/Kibana, FluentBit, Zabbix, Splunk
Load Balancing/Routing: AWS Network Load Balancer, AWS Application Load Balancer, HAProxy, Nginx, Traefik 1/2
Languages: Java, Python 2/3, Bash, NodeJS, Ruby, Go, C/C++
Tools: Pynt, Bundler, Rake, Maven, Gradle, Ant, Helm, Kustomize, Npm
Continuous Integration: TravisCI, CircleCI, AWS CodePipeline/CodeBuild/CodeDeploy, Jenkins, TeamCity, Bamboo, Drone, Shippable, GitlabCI
Continuous Deployment: Chaos Engineering, Chaos Monkey, Kube Monkey, Green/Blue Deployment, Canary Releases, Zero Downtime Deployments, Rolling Updates
Configuration Management: Terraform, CloudFormation, Ansible, Docker, Vagrant, Puppet, Chef
Data: MySQL/PostgreSQL, Aurora, Redis, MongoDB, ElasticSearch, DynamoDB, Cassandra, Kafka/Zookeeper, Redis