Proteome Sciences plc (www.proteomics.com) is a global leader in applied proteomics and peptidomics with scientific operations in Frankfurt (Germany) & San Diego, California (USA). We partner with innovative companies and academic research groups and offer high sensitivity, proprietary technologies for protein and peptide biomarker discovery, validation and assay development. In addition, we develop targeted mass spectrometry assays under GCLP conditions for clients running clinical trials. We are looking for a highly motivated Group Leader - Mass Spectrometry (m/f/d) to support our dedicated MS team based in Frankfurt, Germany. As Group Leader of the Mass Spectrometry Team, you will be involved in all client proteomics projects conducted in our laboratories, as well as in internal research and development efforts. You will be part of a highly collaborative team of scientists and contribute to our mission of bringing high quality proteomics analyses to an ever-growing international client base. We strive to operate at the forefront of technology and routinely incorporate new technologies into our constantly expanding portfolio of services. Daily operation, quality control and troubleshooting of mass spectrometry and liquid chromatography equipment in interaction with technical personnel in the MS team. Development and implementation of LC-MS methods for both multiplexed discovery approaches (e.g., Isobaric tagging, LF, DDA, DIA, etc.) as well as targeted analyses. Daily interaction with scientists from neighboring departments to customize the approach depending on project requirements. Supporting the COO in the management of group resources and capacity planning to ensure a timely delivery of client projects within the allocated budget. MS data analysis and close collaboration with the Bioinformatics team, suggesting and exploring novel ways of analyzing and interpreting MS data. Technical consulting and contribution to client communication in the form of project proposals, data presentations and reporting. Depending on experience, project management of customer projects. A degree in a relevant area of competency (e.g., Bioanalytical Chemistry, Analytical Chemistry, or a natural science) with relevant industry experience (e.g., 8-10 years) preferably including a leadership role within a commercial environment. You have hands-on experience in the operation and maintenance of mass spectrometry and LC equipment (ideally, Orbitrap and other Thermo Fisher MS instruments). Involvement in multiplexed discovery proteomics experiments, including the analysis of post-translational modifications. First experience in the development of targeted SRM and PRM methods for peptide analytes. Additional experience in the analyses of metabolites and small molecules will be considered a plus. You have an open-minded, flexible personality and can-do problem-solving attitude and you communicate efficiently in cross-functional teams as well as in front of clients. Excellent written and verbal communication skills in English. Proficiency in German (B2/C1) is desirable. Small Team Line Management experience and / or leading scientific projects / collaborations will be an advantage. Experience of working in a regulatory environment (e.g., GxP, GCLP, ISO, etc.) is advantageous An opportunity for professional development at one of the market leaders in the areas of applied proteomics, peptidomics and biomarker development. A competitive remuneration package commensurate with experience. Challenging projects in collaboration with leading industrial and academic partners. A friendly and welcoming working atmosphere with regular team building events. Flat hierarchies and an open-minded company structure, where your voice will be heard and you can put your ideas into practice. We offer a competitive remuneration package and opportunities for professional and personal development in a very stimulating working environment.