(1) 負責應用系統基礎設施的設計、推行、支援和維修保養工作，包括： (i) 在內部網絡和互聯網非軍事區內，負責網頁、應用系統和數據庫平台的安裝、調試、維修保養和管理工作，工作包括在生產、開發、測試、培訓和災難恢復環境中進行，並須保持高可用性、高可靠度和高性能表現 ; (ii) 與承辦商、用戶、應用團隊和各支援團隊協調和合作，以便適當地安排和執行軟件安裝和維修保養的工作，確保沒有突如其來的服務中斷； (iii) 提供技術支援，幫助應用團隊和各支援團隊進行持續或以個別項目為本的工作，包括但不限於可行性研究、產品評估、分析和設計、制訂規模、系統推行和測試、性能調整、故障修復等; (2) 處理與數據庫和應用軟件有關的軟件及服務採購，以及軟件許可證和服務的續期及軟件的維修保養; (3) 進行容量調整、軟件升級和修補，包括評估升級／修補及推出新功能的影響; (4) 負責評估數據庫、應用軟件及相關技術; (5) 負責推行系統和日常管理的品質控制，包括架構設計、系統推行和系統安全、數據可用性和加密、迴歸和負載測試，以及系統界面; (6) 為用戶和應用團隊提供資訊科技培訓; (7) 準備、檢查和更新文件，包括但不限於程序、指南，以及系統和操作手冊; (8) 在硬件、軟件、網絡可能引起問題或出現其他資訊科技問題時，為應用系統基礎設施提供初步及次級的隨時候召支援;以及 (9) 督導負責執行上述工作的下屬。

(1)To undertake the design, implementation, support and maintenance activities for the application infrastructure, including: (i) installation, commissioning, maintenance and management of the web, application and database platforms in the internal network and internet demilitarized zones, including the production, development, testing, training and disaster recovery environment with very high availability, reliability and good performance; (ii) co-ordination and collaboration with contractors, users, application teams and various support teams for proper scheduling and execution of software installation and maintenance tasks to ensure no unplanned service interruptions; (iii) provision of technical support and assistance for application teams and various support teams in ongoing or project-based activities, including but not limited to feasibility studies, product evaluations, analysis and design, sizing, system implementation and testing, performance tuning, trouble-shooting, etc.; (2) To handle the procurement of software and services related to database and application software, as well as license and service renewal and software maintenance; (3) To conduct capacity sizing and software upgrade and patching, including the evaluation of the impacts of upgrade/patching and implementation of new functions/features; (4) To undertake the evaluation of database and application software and related technologies; (5) To undertake the quality control of system implementation and housekeeping activities, including architecture design, system implementation and security, data availability and encryption, regression and load test, and system interface; (6) To provide IT training for end users and application teams; (7) To prepare, examine and update documentations, including but not limited to procedures, guidelines, and system and operation manuals; (8) To provide primary and secondary standby on-call support for the application infrastructure in situations that may be caused by hardware, software, network or other IT problems; and (9) To supervise staff under his/her charge for the above tasks.