As a Solderer, you will need to master following:

• select filler metal

More generally, a solderer is also versed in:

• apply flux
• apply precision metalworking techniques
• apply soldering techniques
• ensure correct metal temperature
• ensure equipment availability
• monitor gauge
• operate soldering equipment
• perform test run
• prepare pieces for joining
• quality standards
• remove inadequate workpieces
• remove processed workpiece
• spot metal imperfections
• torch temperature for metal processes
• types of metal
• wear appropriate protective gear

It also helps to know the following:

• ferrous metal processing
• maintain mechanical equipment
• manufacturing of door furniture from metal
• manufacturing of heating equipment
• manufacturing of metal household articles
• manufacturing of small metal parts
• manufacturing of tools
• manufacturing of weapons and ammunition
• non-ferrous metal processing
• precious metal processing
• types of metal manufacturing processes
• adjust temperature gauges
• apply brazing techniques
• apply preliminary treatment to workpieces
• consult technical resources
• ensure correct gas pressure
• flammable fluids
• fuel gas
• handle fuels
• keep records of work progress
• metal joining technologies
• metal smoothing technologies
• operate brazing equipment
• operate oxy-fuel welding torch
• operate precision measuring equipment
• perform product testing
• use welding equipment
• welding techniques
• work ergonomically