大工 is read as だいく (daiku) and means carpenter.
だいく
daiku
みやだいく
carpenter specializing in temple, shrine, etc. construction
だいいちこうぎょうだいがく
Daiichi Technical College
さがみこうぎょうだいがく
Sagami Institute of Technology
くまもとこうぎょうだいがく
Kumamoto Institute of Technology
かなざわこうぎょうだいがく
Kanazawa Institute of Technology
ふくいこうぎょうだいがく
Fukui University of Technology
ふくおかこうぎょうだいがく
Fukuoka Institute of Technology
しずおかりこうかだいがく
Shizuoka Institute of Science and Technology
きゅうしゅうこうぎょうだいがく
Kyushu Institute of Technology
とうきょうのうこうだいがく
Tokyo University of Agriculture and Technology
さいたまこうぎょうだいがく
Saitama Institute of Technology
ひろしまこうぎょうだいがく
Hiroshima Institute of Technology