科學主任主要負責以下其中一個範疇的工作：

(a) 香港認可處
(i) 為推行各項認可服務提供技術及行政支援，包括香港實驗所認可計劃、香港認證機構認可計劃和香港檢驗機構認可計劃下的認可服務；
(ii) 協助制定認可政策；
(iii) 提供專業意見並與專業人員及其他相關各方聯絡；以及
(iv) 統籌和執行認可申請的評審工作。

或

(b) 生物科技總監組／科學顧問組
(i) 就資助申請進行技術評審；為項目評審委員會／評審小組提供支援；以及監察獲批核研發項目的推行情況；以及
(ii) 就科技相關事宜提供技術支援，例如為高級官員擬備出席會議所需的資料簡介；協助與學術界、研究界和商界開展合作；以及掌握相關行業的最新科技發展及科技需要。

A Scientific Officer is mainly deployed to work in one of the following areas :

(a) Hong Kong Accreditation Service (HKAS)
(i) providing technical and administrative assistance in the implementation of accreditation programmes, including those under the Hong Kong Laboratory Accreditation Scheme, the Hong Kong Certification Body Accreditation Scheme and the Hong Kong Inspection Body Accreditation Scheme;
(ii) assisting in formulation of accreditation policy;
(iii) providing professional input and liaising with professionals and other relevant parties; and
(iv) co-ordinating and performing accreditation assessments.

Or

(b) Biotechnology Director’s Team/Science Advisor’s Team
(i) conducting technical assessment of funding applications; providing support to the project vetting committees/assessment panels; and monitoring the implementation of the approved R&D projects; and
(ii) providing technical support on technology-related matters such as preparing briefs for senior officials in attending meetings; assisting in collaboration with the academic, research and business sectors; and keeping abreast of technological development and the technological needs of the relevant industry.