Programming: Ruby, PHP, Python, JavaScript, Lisp, C, Java, ... Middleware: Apache, Nginx, Redis, MySQL, PostgreSQL, MongoDB Container: Docker, Kubernetes Cloud Infrastructure: AWS (EC2, ECS, Batch, S3, Route53, ...), GCP VirtualMachine: VirtualBox, Vagrant fun: Linux (Debian, Gentoo), Emacs, tmux, fish shell, StumpWM Work: Architect, Project Manager, Engineering Advisor, Programmer