(Senior) Scientist for Mass spectrometry-based Protein Analysis (m/f/d)

Dortmund, Germany, Europe

Company Overview:

ProtaGene is a world-leading analytic CRO partner for the biopharmaceutical and cell and gene therapy industries. From research through product commercialization, we provide the most advanced, integrated, and Quality system driven analytic capabilities and packages for biologic therapeutics as well as cell and gene therapy platforms. Our deep history of analytical leadership in protein-based therapeutics stems from the merger of Protagen Protein Services in Europe and BioAnalytix in the US. In 2021 GeneWerk’s unique capabilities in vector safety, integration site analysis, and bioinformatics were integrated into our platforms and service offerings, establishing ProtaGene. The organization operates over four sites in Europe and North America, and works with leading large pharma, biopharmaceutical, and gene therapy companies worldwide.

Please click here to see the German Translation.


  • Analysis of recombinant proteins and therapeutic protein agents in a GMP environment
  • Structural characterization of proteins and biosimilars with mass spectrometric methods (LC-MS, RP-MS, SEC-MS, IEX-MS)
  • Use of a broad spectrum of MS methods: Analysis of intact proteins, sequence verification, extensive determination of modifications, disulfide bridges, glycosylations, protein identification and quantification in complex mixtures, etc.
  • Data analysis with different software packages and databases (qualitative and quantitative)
  • 1D and 2D gel electrophoresis (qualitative & quantitative data analysis)
  • Project management including planning of projects and laboratory work as well as reporting to our international customers
  • Method development and method optimization


  • You have successfully completed your master’s degree or doctorate in proteomics, mass spectrometry, analytical chemistry, biochemistry or a related field
  • If a doctorate is available, postdoctoral research experience is an advantage
  • You will demonstrate excellent knowledge of and practical experience in sample preparation techniques in proteomics, LC/MS-based assay development, and data processing for quantitative proteomics applications
  • You will bring solid expertise in the analytical sciences, including the scientific and technical aspects of bioanalytical studies of proteins and peptides in complex biological matrices
  • You are an expert in mass spectrometry (LC-MS/MS)
  • Strong interpersonal skills with a demonstrated ability to solve problems independently and work effectively in a cross-functional team
  • Excellent communication and presentation skills

We offer:

  • Responsible and varied tasks in a motivating working environment
  • A permanent position in a dynamically growing life science company with over 170 employees
  • Optimal training and individual development opportunities
  • A motivating work environment
  • Fresh fruit and drinks at your free disposal
  • Appreciation, openness and respect as well as a lively feedback culture

We are looking forward to receiving your complete application documents in English or in German, including a letter of motivation, information on the possible starting date and your salary expectations in one or two PDF files by e-mail to:

Join Us in Delivering Analytic Excellence

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