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Principal Research Scientist

Job in Everett, Snohomish County, Washington, 98208, USA
Listing for: Actalent
Full Time position
Listed on 2026-07-05
Job specializations:
  • Research/Development
    Research Scientist, Clinical Research
  • Healthcare
    Clinical Research
Job Description & How to Apply Below

LC-MS Principal Research Scientist

The LC-MS Principal Research Scientist serves as the primary scientific expert for pre-clinical GLP bioanalytical method development, validation, and sample analysis using triple quadrupole LC-MS/MS systems. This role focuses on both small and large molecule analysis, including ADCs and complex large molecule LC-MS/MS assays and sample preparation. The scientist provides direct technical leadership, collaborates closely with clients and internal teams, ensures strict adherence to GLP and regulatory guidelines, and delivers high-quality scientific reports in a fast-paced, collaborative environment.

Responsibilities

  • Provide technical and scientific expertise for small and large molecule analysis using LC-MS/MS, with a primary focus on method development and method validation.
  • Serve as the industry expert for pre-clinical GLP bioanalytical study method development, validation, and sample analysis utilizing triple quadrupole LC-MS systems.
  • Act as the subject matter expert for ADCs and large molecule LC-MS/MS analytical assays and associated sample preparation workflows.
  • Serve as principal investigator or contributing scientist for LC-MS/MS studies, ensuring scientific integrity and regulatory compliance.
  • Ensure all work operates in full compliance with GLP requirements, study protocols, and standard operating procedures (SOPs).
  • Maintain open, direct communication with clients, including attending recurring calls and providing scientific updates as needed.
  • Prepare all necessary study and laboratory documentation required to support in-lab analysis.
  • Complete and deliver high-quality scientific reports to clients on time, clearly summarizing methods, results, and conclusions.
  • Prepare biological materials, including animal blood and tissues, for analytical assays to be run on LC-MS/MS instrumentation.
  • Maintain and document chain of custody for specimens, reagents, controls, and samples in the laboratory to ensure data integrity.
  • Perform analytical assays according to protocol or other guiding documents, ensuring accurate, complete, and contemporaneous documentation.
  • Maintain and update facility records related to laboratory operations and analytical activities.
  • Review laboratory records, procedures, and study data for completeness, accuracy, and compliance with GLP and internal standards.
  • Assist with calibration, optimization, maintenance, and data collection for analytical instruments, including LC-MS/MS systems.
  • Perform routine laboratory maintenance, such as cleaning, stocking supplies, and completing equipment maintenance tasks.
  • Document deviations from laboratory procedures and study protocols in a timely manner and contribute to the development and implementation of corrective actions.
  • Collaborate with internal regulatory and quality departments to ensure robust quality and compliance oversight of GLP SOPs.
  • Ensure compliance with GLP, FDA ICH M10 guidelines, ALCOA+ principles, USDA, and AAALAC guidelines, and identify opportunities for process and quality improvement.
  • Support multiple concurrent projects by effectively prioritizing tasks and meeting established deadlines.
  • Contribute to a collaborative, values-driven culture focused on employee development, customer focus, quality and excellence, respect, and integrity.

Essential Skills

  • Bachelor's degree in Immunology, Biology, Chemistry, or another closely related scientific discipline.
  • Minimum of 5 years of relevant GLP laboratory experience.
  • Ideally a minimum of 5 years of experience as a Senior Research Scientist or equivalent in a GLP environment supporting LC-MS/MS work.
  • Experience working in a Good Laboratory Practices (GLP) environment.
  • Experience working in a contract research organization (CRO) environment or in a bio/pharmaceutical setting supporting method development and validation (minimum of 2 years).
  • Strong hands-on experience with LC-MS/MS instrumentation and associated software.
  • Experience with triple quadrupole LC-MS systems for bioanalytical method development, validation, and sample analysis.
  • Experience with Shimadzu LC-MS systems.
  • Experience with SCIEX LC-MS/MS instrumentation.
  • Experience using Watson laboratory or bioanalytical data management software.
  • Demonstrated ability to handle multiple projects simultaneously, prioritize work effectively, and meet deadlines.
  • Proven ability to work in accordance with GLP requirements, protocols, and SOPs.
  • Strong documentation skills with a focus on completeness, accuracy, and data integrity (ALCOA+ principles).
  • Ability to communicate clearly and professionally with clients and internal stakeholders, both verbally and in writing.

Additional Skills & Qualifications

  • Master's degree or PhD in a scientific discipline such as Immunology, Biology, Chemistry, or a related field.
  • Extensive experience in method development and method validation for small and large molecule LC-MS/MS assays.
  • Expertise in analytical assay design and sample preparation for ADCs and other large molecule therapeutics.
  • Experience…
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