Summary
Overview
Work History
Education
Skills
Certification
Interests
Timeline
PUBLICATIONS AND POSTERS
AWARDS AND SCHOLARSHIPS
Generic

Sydney Vollhardt

San Francisco

Summary

Results-driven Certified Personal Trainer and Research Scientist with a strong background in endurance athletics, performance coaching, and women's health. Eight-time marathoner and 2026 Boston Marathon Qualifier who combines scientific expertise with personalized training to improve strength, performance, bod composition, and long-term lifestyle wellness.

Overview

9
9
years of professional experience
1
1
Certification

Work History

Senior Associate Scientist, in vivo Pharmacology

Sonoma Biotherapeutics
2025.01 - 2026.01
  • Authored and implemented SOPs for the syngeneic platform, covering tissue harvesting/dissociation, immune cell isolation, cell FACS, virus production, transduction, and cell expansion
  • Designed autoimmune disease mouse models for Ulcerative Colitis/IBD/Type 1 Diabetes in support of the Regeneron collaboration
  • Presented key findings at internal company-wide meetings to showcase scientific impact and team contribution.

Associate Scientist, Treg Biology

  • Isolated, expanded, and engineered human and mouse Regulatory T cells to enhance their function, stability, and persistence to better treat autoimmune diseases
  • Implemented a gene editing platform to investigate endogenous loci for payload delivery, and evaluated both retroviral/lentiviral and non-viral (CRISPR) gene delivery methods
  • Initiated a company-wide summer internship program and directly mentored and managed a direct-report

Research Associate, Biology/Immuno-Oncology

Harpoon Therapeutics
2021.06 - 2022.09
  • Executed various IND enabling cell-based and biochemical assays (flow cytometry, MSDs/ELISAs/Activation Assays) to demonstrate efficacy of TriTACs (Tri-Specific T Cell Activating Construct) and provided support for CMC development
  • Optimized conditions for multimedia demonstration of drug efficacy via live cell immunostaining and time-lapse microscopy

Research & Development Intern

T-Cure Bioscience
2020.09 - 2021.06
  • Validated an HLA Class II- Restricted TCR to confirm proper alpha and beta chain pairing, recognition of antigen, and T cell activation in the presence of antigen.
  • Optimized single cell cloning protocol for the discovery of reactive TCRs

Graduate Research Project, Graduate Teaching Associate

California Polytechnic University
2019.09 - 2021.06
  • Thesis: Optimized seeding densities and immunostaining protocol for a 2D and 3D colorectal tumor model and measured colorectal tumors in 2D and 3D in a temporal study
  • Taught undergraduate Cell and Molecular Biology lab, evaluated student work, provided feedback, guided lab techniques, and fostered enthusiasm for science

NASM Certified Personal Trainer

Fitness 19
2019.09 - 2021.06
  • Developed personalized fitness programs for clients based on their individual goals, needs, and abilities
  • Maintained accurate records of client progress, including measurements, weight changes, strength gains, and other relevant data points

Assistant Cross Country Coach

Valley Community College
2018.07 - 2018.11
  • Assisted in designing workouts and organizing practice sessions to support athletes' performance enhancement and injury prevention. Developed core strength training and flexibility routines. Athletes achieved conference title and ranked among top ten teams in state.

Reservoir Management Intern

Metropolitan Water District
2017.06 - 2018.06
  • Preserved and transferred algal samples from local reservoirs and calculated algal biomass via Shannon index. Engaged in field work to collect samples and monitor reservoirs

Education

MS - Biological Sciences specialized in Regenerative Medicine (CIRM)

California Polytechnic State University, San Luis Obispo
06.2021

BS - Microbiology

California Polytechnic State University, Pomona
06.2018

Skills

  • Strategic planning & Data-driven decisions
  • Timeline & Budget management
  • Cross-functional collaboration
  • Critical thinking & Mentorship
  • Scientific communication & presentations
  • Proactive & Adaptable team player
  • Microsoft Project & Microsoft Office Suite, Smartsheet, Co-pilot, Teams, SharePoint, and AI-based PM tools
  • GraphPad Prism, NovoExpress, FlowJo, Benchling, SnapGene, ImageJ, Zen 30, Methodical Mind
  • Performance analysis
  • Injury prevention
  • Data-driven decision making
  • Self-discipline
  • Athlete development
  • Academic support
  • Mentoring athletes
  • Training plans
  • Teamwork and collaboration

Certification

  • NASM Certified Personal Trainer, Renewed 2026
  • CPR, First Aid, and AED Certification, Issued 2025
  • Certificate in Biotechnology Project Management, Issued 2025
  • Fundamentals of Good Clinical Practice, Issued 2025
  • BD FACSCelesta Cell Analyzer Operator Course, Issued 2021
  • CellDiscoverer7 Operator Course, Issued 2022
  • Pathways to Stem Cell Science-hPSC Techniques Course, Issued 2021

Interests

  • Passionate about balancing physical health with mental and emotional wellness
  • Animal Care
  • Reading
  • Backpacking and Hiking
  • Adventure Travel
  • PADI Open Water Scuba Diving

Timeline

Senior Associate Scientist, in vivo Pharmacology

Sonoma Biotherapeutics
2025.01 - 2026.01

Research Associate, Biology/Immuno-Oncology

Harpoon Therapeutics
2021.06 - 2022.09

Research & Development Intern

T-Cure Bioscience
2020.09 - 2021.06

Graduate Research Project, Graduate Teaching Associate

California Polytechnic University
2019.09 - 2021.06

NASM Certified Personal Trainer

Fitness 19
2019.09 - 2021.06

Assistant Cross Country Coach

Valley Community College
2018.07 - 2018.11

Reservoir Management Intern

Metropolitan Water District
2017.06 - 2018.06

MS - Biological Sciences specialized in Regenerative Medicine (CIRM)

California Polytechnic State University, San Luis Obispo

BS - Microbiology

California Polytechnic State University, Pomona

PUBLICATIONS AND POSTERS

  • Cheng, Z., Wang, L., Hanauer, M., Cincotta, C., Page, R., Vollhardt, S., ... Bluestone, J. A. (2025). Transcriptional Fingerprinting of Regulatory T Cells: Ensuring Quality in Cell Therapy Applications. Frontiers in Immunology, 16, Article 1602172. https://doi.org/10.3389/fimmu.2025.1602172
  • Kwant, K. S., Rocha, S. S., Yu, T., Stephenson, K., Banzon, R. R., Vollhardt, S., ... Lin, S. J. (2022, April). TriTAC-AR: An extended-release T cell engager platform designed to minimize cytokine release syndrome by reducing Cmax in systemic circulation [Poster session]. American Association for Cancer Research Annual Meeting, New Orleans, LA
  • Vollhardt, S. (2021). Optimization of the Limited Dilution Method and Targeting NY-ESO-1 with an HLA Class II- Restricted TCR for Cancer Immunotherapy [Poster session]. CIRM Bridges Annual Meeting, San Marcos, CA

AWARDS AND SCHOLARSHIPS

Bridges to Stem Cell Research, 2020-2021, Received funding for full-time research with stem cell related projects
Sydney Vollhardt