技術主任(電機)的主要職責是(a) 繪製電訊、電機及電子、結構及機械圖則，以供電腦輔助設計系統策劃／評估／招標承辦／實施項目；(b) 為通訊設施籌劃和制訂屋宇裝備要求；(c) 進行工程計算工作和備存技術報告及記錄；(d) 進行實地視察和負責實地工程測量；(e) 負責操作和控制工作進度、工作及方法研究、項目測試／驗收，以及設計夾具及固定裝置；以及 (f) 協助訓練見習技術主任(電機)(如有)。
(註：可能須不定時工作，以及在戶外工作。)

A Technical Officer (Electrical) is mainly deployed on (a) preparing telecommunications, electrical and electronic, structural and mechanical drawings for project planning / evaluating / tendering / implementation by Computer-Aided-Design program; (b) co-ordinating and preparing building services requirements for communications facilities; (c) performing engineering calculations and maintaining technical reports and records; (d) conducting site visits and undertaking on site engineering measurements; (e) undertaking operation and control of work progress, work and method study, project testing / acceptance and design of jigs and fixtures; and (f) assisting in the training of Technical Officer Trainees (Electrical), if any.
(Note : May be required to work irregular hours and perform outdoor duties.)