Tichina Adams-Walker
Chesterfield
Summary
Results-oriented with expertise in quality control, regulatory authoring and laboratory management systems. Managed ICH-compliant stability programs by demonstrating strong analytical skills and cross-functional collaboration that significantly impacted business decisions. Recognized for optimizing workflows and driving innovation while upholding high-quality standards in fast-paced environments.
Overview
9
9
years of professional experience
Work History
Quality Control Portfolio Lead, Stability Scientist
Pfizer, Inc.
Chesterfield
04.2022 - Current
- Designed, executed and managed up to five (5) ICH-compliant stability programs for monoclonal antibody and vaccine products, enabling progression from preclinical development through registration.
- Led cross-functional collaboration with CMC and regulatory teams to author and maintain CTD Module 3 Stability sections, facilitating timely initial filings and amendments for US and non-US markets.
- Evaluated internal and CRO-generated analytical stability data to monitor trends, ensured GxP compliance, and supported informed shelf-life decisions.
- Oversaw multiple QC deliverables, including reference standard stability, consistently meeting project milestones through high-level prioritization, scientific judgment, and independent execution.
Senior Associate Scientist
Pfizer, Inc.
Chesterfield
08.2020 - 04.2022
- Applied and oversaw advanced chromatography techniques (RP-HPLC, SEC, IEX) to characterize drug products, assess product quality, and evaluate impurity profiles in support of method development decisions.
- Served as primary contact for developmental stability studies, managing sample handling and integrating data to deliver stability trend analyses for cross-functional project teams.
- Led pre-assessment and analytical qualification activities, interpreting experimental data and authoring technical reports and datasets in Global Document Management System (GDMS) to support project documentation.
Assay Support Technician
Pfizer, Inc.
Chesterfield
06.2018 - 08.2020
- Recognized subject matter expert and analytical systems superuser, leveraging Empower software to train and mentor 10+ colleagues on instrument operation, data integrity, and reverse-phase chromatography and titer assays.
- Applied in-process analytical techniques, including Protein A titer, amino acid analysis, and gel electrophoresis, to enhance cell culture, purification, and technology development outcomes.
- Troubleshot and resolved user-reported problems to maintain operational efficiency and support team productivity.
Analytical Associate Scientist
Atrium Staffing
12.2016 - 06.2018
- Reduced amino acid assay turnaround time to less than 5 business days by implementing a high-throughput, automated workflow using a Biomek liquid handler, decreasing sample preparation time by 50% and minimizing manual pipetting errors.
- Reduced amino acid assay turnaround time to under 5 business days by implementing a high-throughput, automated workflow using a Biomek liquid handler, decreasing sample preparation time by 50% and minimizing manual pipetting errors.
- Collaborated with cross-functional teams to develop strategic recommendations that informed cell culture feeding strategies.
Education
M.S. - Applied Health Behavior Research
Washington University in St. Louis
St Louis, MO05-2018
B.S. - Biochemistry
University of Missouri
Columbia, MO12-2014
Skills
- Quality control
- Regulatory authoring
- Lab operation systems (eg LIMS, Empower)
- Document control (eg GDMS)
- Microsoft Power Platform
- Microsoft Office
Timeline
Quality Control Portfolio Lead, Stability Scientist
Pfizer, Inc.
04.2022 - Current
Senior Associate Scientist
Pfizer, Inc.
08.2020 - 04.2022
Assay Support Technician
Pfizer, Inc.
06.2018 - 08.2020
Analytical Associate Scientist
Atrium Staffing
12.2016 - 06.2018
M.S. - Applied Health Behavior Research
Washington University in St. Louis
B.S. - Biochemistry
University of Missouri