Senior Scientist

Bachem is a leading, innovation-driven company specializing in the development and manufacture of peptides and oligonucleotides. With over 50 years of experience and expertise Bachem provides products for research, clinical development and commercial application to pharmaceutical and biotechnology companies worldwide and offers a comprehensive range of services. Bachem operates internationally with headquarters in Switzerland and locations in Europe, the US and Asia. The company is listed on the SIX Swiss Exchange. For further information, see

A Brief Overview

The Senior Scientist, Mass Spectrometry Service will fulfill a critical role in QC to support Production Operations for all production manufacturing, process development, and service order activities. The individual will work closely together mainly with process development, production manufacturing, QC material testing, QC IPC, and QC API testing to understand and align analytical strategies. This individual performs routine testing, as well as method development, validation, and method transfer. In addition, this individual performs special projects such as peptide characterization, impurity identification, and other special studies as necessary. This individual conducts or contributes to investigations and the identification and implementation of corrective actions. This individual contributes to advances in analytical capacities for the Quality Control department. This individual proactively provides solutions to resolve analytical challenges to support our internal and external customers in a timely manner. The individual should ultimately help to train the affected interface functions to become independent in tackling daily challenges.

What you will do


  • Conduct routine analytical tests (such as HPLC/UHPLC, LC-MS, MS, and MS/MS). Independently analyze and interpret MS data.
  • Trouble shooting and ensure the mass spectrometers are operational.
  • Independently execute and summarize MS service activities to support process R&D, production, CMC, and QC.
  • Plan, execute, conclude mass spectroscopic method development, validation, and product/standard characterization.
  • Utilizing mass spectroscopy data to confirm/identify product/standard/impurity structures.
  • Coordinate, execute, and oversee impurity identification and peptide characterization projects.
  • Provide guidance and helps to peers and junior scientists for trouble shouting abnormal results.
  • Conduct and document investigations related to analytical activities.
  • Be a technical liaison between the QC teams and other cross functional teams.
  • Participate the planning of QC strategy to support the projects and production development activities.
  • On the continuing basis, improve the working efficiency through streamline of the analytical process.
  • Build or expand the analytical capabilities as needed.
  • Develop and maintain in-depth understanding of the scientific principles associated with analytical activities.
  • Routinely work with hazardous materials and manage hazardous waste in a satellite accumulation area



  • B.S. Degree in chemistry or related scientific field with 5 years’ mass spectrometry experience or
  • M.S. degree in chemistry or related scientific field with 3 years’ mass spectrometry experience or
  • Ph.D. in chemistry or related scientific field with 1 years’ industry experience
  • Experience working in GMP manufacturing and laboratory testing.
  • Knowledge of current Good Manufacturing Practices (cGMP), Good Laboratory Practices (GLP) and Good Documentation Practices (GDP).
  • Strong hands on experience with HPLC (SEC, IC)/UPLC, MS, MS/MS sequencing and LC-MS.
  • Strong hands-on instrumentation experience using LC-MS, MS, and MS/MS.
  • Experience in writing standard operating procedures (SOPs), test methods, technical protocols and reports.
  • Experience in method development, validation, and method transfer.
  • Independently execute, conclude analytical method development, validation, and method transfer.
  • With minimum supervising, design method development plan and develop variety of analytical methods.
  • Work closely with Production, QC RM, QC IPC, and QC API to provide analytical support.
  • Provide solutions to resolve analytical challenges to support our internal and external customers.
  • Evaluate compendial and customer's methods, implement these methods in house and transfer them to the final users.
  • Ability to set priorities and to follow through on commitments.
  • Basic computer knowledge, including Microsoft Word, Excel and PowerPoint
  • Ability to effectively organize, multitask, and work in a fast-paced, timeline driven work environment.
  • Detail oriented with the ability to troubleshoot and resolve problems.
  • Ability to provide technical training to peers.
  • Ability to coordinate work with other functions/departments to achieve project objectives.
  • Ability to provide expertise to management, technical project leaders, project/program leaders on method feasibility and risk assessment.
  • Excellent written and oral communication skills
  • Experience with peptides (preferred)
  • Experience in both analytical development and quality control in pharmaceutical/biopharmaceutical industry (preferred)


Our people are passionate about what they do, the product they sell, and the customers they serve. If you're looking for an opportunity to be a part of a work family that values collaboration, innovation and dedication, we're the right company for you. 



Base Salary Range: $80,484 - $110,665

Placement of new hires in these wage ranges is based on several factors including education, skill sets, experience, and training.


Total Rewards 


We offer all Team Members a total rewards package including competitive pay, annual performance bonus, a generous benefit package with comprehensive Medical/Dental/Vision coverage, 401(k) plan with employer contribution, and paid vacation, personal and sick days. 


Corporate Social Responsibility 


Bachem takes responsibility for future generations by a careful handling of resources and avoiding environmental risks. We continually improve our ecological performance and develop and implement new approaches for enhancing employees’ environmental awareness.  EcoVadis has awarded Bachem Platinum Medal status in their assessment of Bachem. 


Bachem Americas is an Equal Opportunity Employer 


All qualified applicants will receive consideration for employment without regard to race, color, sex, sexual orientation, gender identity, religion, national origin, disability, veteran status, or other legally protected status 



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