The average annual salary of a welder is $37,420 or an equivalent of $17.99 per hour but depending on skill and the type of work, salaries can go up or down. On the job training, technical school, and a high school diploma are the requirements to become a welder whose work is mostly full time.
The Bureau of Labor Statistics lists the median annual salary for aestheticians as $28,920 annually, which equates to about $13.90 per hour. How to Become a Medical Aesthetician: Aestheticians must complete a training program that is accredited by the State Board of Cosmetology.
As a medical aesthetician, you can work in spas, clinics, medical practices and surgeons' offices. Often, medical aestheticians work closely with physicians and surgeons to ensure a high level of patient care. According to Payscale.com, medical estheticians earned from $24,281 to $51,328 in March 2016.