Skills of Ruby on Rails engineers

Internet

• IP address and domain routings
• DHCP
• Ethernet / MAC Address
• HTTP
• HTTPS

Linux Server

• memory, CPU and disks of phisical server
• basic linux commands
• using shell scripts
• collect and maintain logs
• understanding daemons
• ports and iptables
• linux distributions
• package manager and package versions
• aws
• heroku
• newrelic

Web security

• SQL injection
• CSRF
• html injection
• html escape
• managing password

Ruby on Rails

• making basic application with scaffold
• understanding ActiveRecord
• understanding MVC model in RoR
• finding and using Gems
• using concerns
• implement Ajax
• understanding asset pipeline
• making Gem
• reading Rails code

Gems

• paperclip and Imagemagick
• exception notification
• devise
• nokogiri

Object Oriented Programming

• class and instance
• class method and instance method
• inheritance
• scopes of methods
• polymophism
• interface
• mixin

English

• reading technical blogs
• reading technical documents / references
• write to make issues
• write for commit comments
• understand requirements
• explain requirements
• technical discussion

Programming languages

• use other script language
• use static typing language
• use functional languages
• make product with other language

Ruby

• understand build in classes
• versions of Ruby
• meta programing
• method missing

Test

• understand what to test
• boundary conditions
• unit test
• functional test
• regression test
• rspec
• factory_girl
• capybara

Web programming

• understand cache
• scraping

CSS

• CSS3
• bootstrap
• sass
• basic skill
• include and mixin

javascript

• jQuery
• coffeescript
• Prototype programming
• npm and node.js

HTML

• basic skill
• understanding of each tags
• html5 tags
• slim
• haml

Web server

• basic knowledge of web servers
• understanding performance
• dynamic and static contents
• Etag
• Apache
• Nginx
• unicorn
• reverse proxy

Database Server

• relational databases
• PostgreSQL / MySQL / SQLite
• normalize, denormalize
• index and indexed search, nonindexed search
• transaction
• understanding performance
• deadlock
• performance optimizations
• debugging SQL
• No SQL

UI/UX

• basic knowledge of user interfaces
• understanding user experience
• mobile and pc user experience