Responsibilities 1) Performs routine analytical chemistry testing to finish the testing data according to approved procedures and SOP’s to ensure the testing data accuracy; 2) Assist to establish analytical methods or improve existing method and ensure the analytical measurements are accurate; 3) Calibrate / validate analytical instruments with reference to the quality system to ensure the precision of testing data and maintain the instrument properly and correctly to reduce the breakdown rate; 4) Able to apply basic statistics to data analysis 5) Report to lab supervisor in time when any unexpected phenomenon or results occurred in daily testing. Requirements 1) College degree or above in chemical or related discipline, analytical chemistry is preferred; 2) At least 2 years experience in chemical testing; 3) Good experiences in operate and maintenance for at least one of the following instruments: AAS, ICP-OES, UV-Vis, XRF, ICP-MS; 4) Good command of read and written English; 5) Hard working ,self-motivated, and having a mind-set of teamwork.