Biologist

December 15, 2025
$40 - $45 / hour
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Job Description

Job Summary:

  • We are seeking a highly motivated Contractor – Purification Scientist to join our Downstream Process Development team.
  • The successful candidate will contribute to the purification and characterization of viral vectors, biologics, or recombinant proteins to support process development and manufacturing activities.
  • The ideal candidate has hands-on experience in ion-exchange chromatography, affinity purification, and tangential flow filtration (TFF), with a strong understanding of purification principles and data analysis.

Duties and Responsibilities:

  • Execute purification processes including affinity chromatography, ion-exchange chromatography (AEX, CEX), and other polishing steps.
  • Operate AKTA systems (Avant, Pure, or Pilot) for small- to large-scale purification runs.
  • Perform TFF operations for buffer exchange and concentration of intermediate or final products.
  • Support experimental design, data collection, and documentation following established procedures and GMP/GLP best practices.
  • Assist in troubleshooting and optimization of purification processes.
  • Analyze in-process and purified samples using relevant analytical methods (e.g., UV, SDS-PAGE, ddPCR, ELISA, or HPLC).
  • Collaborate cross-functionally with upstream, analytical, and manufacturing teams.
  • Maintain lab equipment, manage buffers and column inventory, and ensure compliance with safety and documentation standards.

Education:

  • Master’s degree in Biochemistry, Chemical Engineering, Biotechnology, or related field.

Experience:

  • Minimum 2 years of hands-on purification experience in an academic or industry setting.
  • Experience in AAV or other viral vector purification.
  • Experience with AKTA systems and Unicorn software.

Technical Skills:

  • Strong knowledge and practical experience with ion-exchange and affinity chromatography.
  • Familiarity with buffer preparation.
  • Understanding of basic analytical methods for product characterization.

Soft Skills:

  • Strong attention to detail and excellent documentation habits.
  • Effective communication and teamwork skills.
  • Ability to manage multiple tasks and meet project timelines.