(a)訓練、指導及監管懲教院所內的在囚人士從事金屬製品的生產，監管工序包括但不限於金屬剪裁、切割、焊接、鑽孔、打磨、塗漆、測試及包裝；(b)物料用量估算、生產計劃及排程、品質及施工控制、生產機器操作及一般保養；(c)協助工藝導師擬備職業訓練教材及教授有關課程；(d)執行職安健守則及相關規例；以及(e)執行其他指派職務。 註：須受《監獄條例》約束、穿著制服，或須輪班當值及在部門宿舍居住。

(a) training, instructing and supervising persons in custody in correctional institutions engaging in metal work production, overseeing work process including but not limited to metal guillotining, cutting, welding, boring, grinding, painting, testing and packaging; (b) material estimation, production planning and scheduling, quality and work process control, machines and equipment operation and their general maintenance; (c) assisting Technical Instructor in preparing vocational training materials and teaching related classes; (d) enforcing the Code of Practice of Occupational Safety & Health and related regulations; and (e) performing any other duties as assigned. (Note: Subject to the provisions of the Prisons Ordinance and may be required to wear uniform, work shifts and live in departmental quarters.)