As a Web Developer, you will need to master following:

• ICT debugging tools
• analyse software specifications
• debug software
• develop software prototype
• implement front-end website design
• integrated development environment software
• interpret technical texts
• tools for software configuration management
• use an application-specific interface
• use markup languages
• use software design patterns
• use software libraries
• web programming

More generally, a web developer is also versed in:

• World Wide Web Consortium standards
• collect customer feedback on applications
• computer programming
• content development processes
• create flowchart diagram
• provide technical documentation
• style sheet languages
• translate requirements into visual design

It also helps to know the following:

• ABAP
• AJAX
• APL
• ASP.NET
• Ansible
• Apache Maven
• Assembly (computer programming)
• C#
• C++
• COBOL
• CSS
• CoffeeScript
• Common Lisp
• Eclipse (integrated development environment software)
• Erlang
• Groovy
• Haskell
• ICT security legislation
• JSSS
• Java (computer programming)
• JavaScript
• JavaScript Framework
• Jenkins (tools for software configuration management)
• KDevelop
• LESS
• Lisp
• MATLAB
• ML (computer programming)
• Microsoft Visual C++
• Objective-C
• OpenEdge Advanced Business Language
• PHP
• Pascal (computer programming)
• Perl
• Prolog (computer programming)
• Puppet (tools for software configuration management)
• Python (computer programming)
• R
• Ruby (computer programming)
• SAP R3
• SAS language
• STAF
• Salt (tools for software configuration management)
• Sass
• Scala
• Scratch (computer programming)
• Smalltalk (computer programming)
• Swift (computer programming)
• TypeScript
• VBScript
• Visual Studio .NET
• Xcode
• adapt to changes in technological development plans
• compose description for web elements
• design user interface
• implement anti-virus software
• migrate existing data
• object-oriented modelling
• software anomalies
• use automatic programming
• use concurrent programming
• use functional programming
• use logic programming
• use object-oriented programming
• use query languages
• utilise computer-aided software engineering tools
• web application security threats
• augmented reality
• conduct content quality assurance
• develop creative ideas
• use e-services
• use presentation software
• use word processing software