As a Web Content Manager, you will need to master following:

• information structure
• integrate content into output media
• interpret technical texts
• keywords in digital content
• manage online content
• provide multimedia content
• publishing strategy
• translate requirement concepts into content
• use markup languages
• web programming

More generally, a web content manager is also versed in:

• apply tools for content development
• authoring software
• compile content
• comply with legal regulations
• conduct content quality assurance
• conduct search engine optimisation
• content development processes
• create content title
• ensure compliance with company regulations
• ensure compliance with legal requirements
• identify customer requirements
• identify legal requirements
• legal requirements of ICT products
• manage content metadata
• provide written content
• style sheet languages
• translate requirements into visual design
• use content management system software
• utilise content types

It also helps to know the following:

• AJAX
• CSS
• JSSS
• JavaScript
• LESS
• PHP
• Sass
• design digital call to action
• manage content development projects
• provide guidelines for content development
• World Wide Web Consortium standards
• augmented reality
• cognitive psychology
• content marketing strategy
• ensure proper document management
• perform copywriting
• perform online data analysis
• proofread text
• use presentation software
• use spreadsheets software
• use word processing software