Underwater Welder

An Underwater Welder uses many common arc welding processes to weld and cut in a wide range of aquatic environments. They must use their welding know-how and intricate knowledge of diving procedures and protocol to effectively lay down strong welds, often in tight spaces and less-than-forgiving surroundings. Hyperbaric chambers and cofferdams are used for dry welding, while wet welding is performed in open waters up to several hundred feet deep.


Safe and efficient welding underwater, in a cofferdam, or other marine environment.

Preform cutting, fitting, and rigging, to salvage sunken equipment.

Calibrate all materials and equipment for welding and diving.

Identify weld discontinuities and defects, and perform nondestructive testing.

Survey waters of various depths for obstacles and perform underwater photography and recording.

Education & Training

Education and training that can lead to a successful career may include:

Minimum Training

Commercial diving certification.

Recommended Education

Certificate in welding, metals fabrication, machining, etc.

Advanced Education

Associate degree in welding, metals fabrication, machining, etc.

Preferred Education

Underwater welding and commercial diving program.

Recommended Training

Related work experience as welder or diver’s tender.

Advanced Training

Apprenticeship program.

Recommended Certification

AWS Certified Welder.

Minimum Education

High school diploma or equivalent.

Highly motivated and self-directed.

Prepared to adapt to a challenging work environment.

Flexible and able to work in a team environment.

Organized and detail oriented.

Focused under pressure.

Maintain physical strength and superior fitness.

Underwater welders work in a variety of industries that are integrated within aquatic environments. Nearly all opportunities exist along the coastal regions and may require travel.