Senior Associate Scientist (Contract), Polysaccharide Analytical Development

Senior Associate Scientist (Contract), Polysaccharide Analytical Development – Vaxcyte

Posted on: June 04, 2026

Description:

We are seeking a highly motivated and detail-oriented Senior Associate Scientist (Contract) to join our Polysaccharide team. Primary responsibility for the incumbent will be to support analytical testing and characterization of polysaccharide-based drug candidates. This individual will execute and optimize a variety of biochemical and chromatographic assays, contribute to method development initiatives, and ensure high-quality data generation in support of research and development programs.

Essential Functions:

• Perform in-house assays for polysaccharide manufacturing, including in-process testing, process development and process characterization study sample analysis, including:
• Spectrophotometric-based assays (e.g., UV/Vis, Lowry, PicoGreen, Anthrone, etc.)
• Metabolite Analysis (e.g. sugars)
• LC-MS-based assay
• Prepare samples, reagents, standards, and controls according to established protocols.
• Troubleshoot instrumentation and assay performance issues to ensure reliable data output.

Method Development & Optimization

• Assist in developing, qualifying, and optimizing analytical methods for sample preparation, testing, and characterization.
• Support method transfer, robustness evaluation, and documentation updates.
• Proactively recommend improvements to increase assay sensitivity, reproducibility, and throughput.

Data Analysis & Reporting

• Utilize data analysis software platforms such as Empower and Chromeleon for HPLC data acquisition and analysis, and SoftMax Pro for MSD and spectrophotometric assay data analysis.
• Analyze, interpret, and summarize experimental data clearly and concisely.
• Prepare technical summaries and present findings to cross-functional teams (e.g., R&D, CMC, Quality).

Compliance & Documentation

• Maintain meticulous laboratory notebooks and electronic records in compliance with internal SOPs and laboratory standards.
• Ensure data integrity and adherence to applicable regulatory guidelines (e.g., GLP/GMP where applicable).
• Participate in audits, documentation reviews, and quality initiatives as needed.
• Collaborate effectively with scientists across disciplines to support program milestones.
• Demonstrate eagerness to learn new analytical techniques and scientific concepts.
• Integrate best laboratory practices and contribute to a culture of operational excellence.

Requirements:

• MSc in Chemistry/Biochemistry, Biotechnology, or similar degree with a minimum of 3 years of relevant industry experience, or BSc with a minimum of 5 years of relevant industry experience.
• Hands-on experience with HPLC systems and carbohydrate or polysaccharide analysis.
• Experience with HPAEC-PAD is preferred.
• Experience with LC-MS/MS is a plus.
• Experience with Empower and/or Chromeleon software.
• Familiarity with biochemical assays (ELISA, colorimetric, fluorescence-based assays).
• Experience working with polysaccharides, biologics, or complex drug substances.
• Experience in in-process monitoring and testing for process-related impurities.
• Knowledge of regulatory expectations for analytical documentation.
• Experience supporting CMC, process development, or analytical development programs.
• Strong organizational skills and attention to detail.
• Excellent written and verbal communication skills.
• Strong analytical and problem-solving skills.
• High attention to data accuracy and reproducibility.
• Ability to manage multiple priorities in a fast-paced environment.
• Collaborative team player with proactive communication style.

Reports to: Senior Scientist, Polysaccharide Analytical Development