Biologist II

Katalyst HealthCares and Life Sciences

Posted on: December 30, 2025

Closing: January 29, 2026

Salary: Undisclosed

Job Description

Job Description:
The Quantitative, Translational ADME Sciences (QTAS) department at client is seeking a highly motivated and energetic bioanalytical scientist to join the biologics bioanalysis, characterization, and proteomics (BBCP) group. The primary responsibility of this position is to support LC-MS (liquid chromatography-mass spectrometry)-based bioanalysis and method development for biologic entities, such as monoclonal antibodies, multi-specific antibodies, antibody-drug conjugates (ADCs), and other Client modalities. The successful candidate will have experience in optimizing and implementing hybrid LC-MS-based bioanalytical methods to support non-regulated preclinical PK and TK studies. Responsibilities include routine sample preparation, method development, instrument maintenance, data analysis, report writing, and presenting data at internal and external meetings.
Responsibilities:
  • Perform affinity purification and digestion of biological therapeutics (including but not limited to monoclonal and bispecific antibodies, antibody drug conjugates, antibody-siRNA conjugates, and fusion proteins) from biological matrices manually or using automation systems.
  • Operate and maintain LC/MS instruments to generate high-quality experimental data.
  • Optimize and develop LC/MS methods to meet assay specificity and sensitivity requirements.
  • nalyze data and maintain detailed, accurate and comprehensive study documentation in electronic laboratory notebooks.
  • Communicate data interpretation internally and externally.
Requirements:
  • Degree in chemistry, pharmacology, or other related fields. BS with 5+ years or MS with 2+ years in a pharmaceutical industry setting with a focus on mass spectrometry. Prior industry experience in drug discovery/development is highly desired.
  • Highly motivated, self-driven and results-oriented with excellent communication and presentation skills; capable of working both as a team player and individual contributor.
  • Hands-on experience with QQQ (SCIEX) is required, additional experience with qTOF (Agilent, Bruker, SCIEX) and/or Orbitrap (Thermo) mass spectrometers is a plus.
  • Hands-on experience with biologics bioanalysis is highly desired, additional experience with oligonucleotide analysis is a plus.
  • Hands-on experience with immuno-affinity purification and automation systems (e.g., TECAN, AssayMap Bravo or Hamilton) is highly desired.
  • In-depth understanding of PK, TK and PK/PD studies is preferred.
Top skills:
  • Degree in chemistry, pharmacology, or other related fields. BS with 5+ years or MS with 2+ years in a pharmaceutical industry setting with a focus on mass spectrometry. Prior industry experience in drug discovery/development is highly desired.
  • Hands-on experience with QQQ (SCIEX) Mass Spectrometer is required, additional experience with qTOF (Agilent, Bruker, SCIEX) and/or Orbitrap (Thermo) mass spectrometers is a plus.
  • Hands-on experience with biologics bioanalysis is highly desired, additional experience with oligonucleotide analysis is a plus.
  • Hands-on experience with immuno-affinity purification and automation systems (e.g., TECAN, AssayMap Bravo or Hamilton) is highly desired.
  • Highly motivated, self-driven and results-oriented with excellent communication and presentation skills; capable of working both as a team player and individual contributor.

Katalyst HealthCares and Life Sciences

Posted on: December 30, 2025

Closing: January 29, 2026

Salary: Undisclosed

Career Focus: Biology

This role is part of a curated selection of life science opportunities featured on Xtalks. Employers may request edits or removal here.

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