As a Quality Engineer, you will need to master following:

• identify improvement actions
• identify process improvements

More generally, a quality engineer is also versed in:

• analyse test data
• define quality standards
• inspect quality of products
• perform risk analysis
• quality assurance methodologies
• quality assurance procedures
• quality standards
• recommend product improvements
• record test data
• report test findings
• set quality assurance objectives
• support implementation of quality management systems
• test procedures
• undertake inspections
• write inspection reports

It also helps to know the following:

• check quality of products on the production line
• define manufacturing quality criteria
• audit techniques
• check quality of raw materials
• communicate test results to other departments
• communication
• ensure compliance with company regulations
• ensure compliance with legal requirements
• industrial engineering
• lead inspections
• lean manufacturing
• maintain test equipment
• manage budgets
• manufacturing processes
• non-destructive testing
• oversee quality control
• perform pre-assembly quality checks
• perform project management
• train employees
• use measurement instruments