We invite applications for a postdoctoral researcher in the area of environmental metabolomics and/or environmental analytical chemistry. The Kujawinski lab uses analytical chemistry to explore the intersection of microbial biology and chemistry within marine systems. The funded project involves complex mixture analysis by qualitative and quantitative mass spectrometry, with a focus on development of new tools for analysis of metabolites dissolved in seawater. The successful applicant will be trained in all aspects of environmental sample analysis, including sample processing, mass spectrometry, and data analysis. A PhD in chemical oceanography, biogeochemistry, analytical chemistry or a related field is required. Experience with mass spectrometry and downstream data analysis as well as knowledge of programming tools such as MATLAB, Python, and R would be advantageous. Candidates with interests in linking chemical and biological datasets are especially encouraged to apply. The position is available for one year, renewable for a maximum of two years. Inquiries should be addressed to firstname.lastname@example.org. Please apply on-line through the WHOI Human Resources Department.