Aja Harbert joined Immuneering as a Senior Director, People in July 2026. Ms. Harbert is an HR leader with broad experience supporting entrepreneurial, startup, and high-growth organizations. Her background spans biotechnology, venture capital, and private equity, where she partners with leadership teams to build scalable organizations and people strategies. She has worked with organizations across North America, Europe, and Asia. Aja is passionate about empowering leaders, developing high-performing teams, and helping organizations reach their next stage of growth.
Paris Offor
Paris Offor joined Immuneering as a Senior Research Associate in July 2026 with over five years of experience in in-vitro pharmacology, translational cancer research, and preclinical drug development. She has contributed to numerous preclinical oncology studies in the past by applying expertise in both advanced mammalian and patient-derived xenograft (PDX) cell culture, flow cytometry, high-content imaging, and molecular biology techniques. Paris has a strong foundation in experimental design, data analysis, and supporting the advancement of novel cancer therapeutics. Ms Offor earned a B.S. in Public Health from San Diego State University.
David Caouette
David joined Immuneering as Vice President, Corporate Communications in July 2026. He is a senior corporate communications leader with expertise in corporate media relations, patient advocacy, executive, financial and crisis communications, as well as issues management. Prior to joining Immuneering, David held communication leadership roles at Pfizer, Seagen, Biogen, City of Hope, Amgen, Merck and Disney. He earned a BA in journalism from the University of Maine and holds a management certificate from the University of Washington.
David Freeman
David joined Immuneering in 2026 as Senior Research Associate. Prior to joining Immuneering, David worked at Escient Pharmaceuticals, where he ran high-throughput screening and helped bring the company’s lead project to the clinic. David earned his B.S. in Biology from UCSD.
Jennifer Cho
Jennifer joined Immuneering as Associate Director, Clinical Scientist in 2026. She has over a decade of experience in oncology clinical trials, with prior experience as a Clinical Scientist on Phase I-III trials at Novartis, Celgene, and Regeneron. Jennifer also has site experience as a Research Pharmacist at Jacobi Medical Center and as a Study Coordinator at Dana-Farber Cancer Institute, as well as vendor experience in clinical trial technology products (mobile eCOA and EDC). Jennifer earned her PharmD from the University of Maryland School of Pharmacy and her B.A. in Child Development and Community Health from Tufts University.
Jyoti Joshi
Jyoti joined Immuneering as Director, Quality Systems and Compliance in 2026. She brings more than 14 years of quality assurance and quality systems experience in the biotech industry, including building quality management systems from the ground up. Prior to joining Immuneering , she held quality roles at SpringWorks Therapeutics, Resilience, bluebird bio, Organon Teknika, and Merck. Jyoti holds an M.S. in Environmental Science from the University of North Carolina and a B.S. in Chemistry from Carnegie Mellon University.
Nora Bruno
Ms. Bruno brings over 25 years of experience in the life sciences industry, spanning biotechnology, medical device, and pharmaceutical drug development. She began her career at the bench in an analytical laboratory supporting the characterization of investigational products through pharmacokinetic profiling and pharmacodynamic endpoint assessment across clinical and non-clinical studies. Building on her scientific foundation, she transitioned into strategic Quality leadership, partnering with emerging and growth-stage biopharmaceutical companies to design, implement, and mature scalable, inspection-ready Quality frameworks aligned with global regulatory standards. Prior to joining Immuneering in February 2026, Ms. Bruno held Quality leadership roles at Entasis Therapeutics , Spyre Therapeutics , and Geron Corporation . Ms. Bruno holds a Graduate Certificate in Regulatory Affairs from Northeastern University, an M.S. in Biotechnology from Worcester State University, and a B.S. in Biology from Framingham State University.
Patrick Xin
Patrick Xin has served as Senior Director of Clinical Data Management since December 2025, leading the company’s clinical data strategy and execution across global programs to support high-quality regulatory filings, scientific presentations, and publications. Prior to joining Immuneering, Patrick served as Executive Director at Arcturus Therapeutics, leading integrated biometric data management and statistical programming functions, and as Director of the Clinical Research DataCore at NYU Langone Health.
Patrick holds an M.S. in Computer Science from New Jersey Institute of Technology, an M.A. in Biochemistry from City University of New York, and a B.S. in Pharmaceutical Science from Fudan University, China
Vinny Hayreh, MD
Vinny Hayreh, MD, is a physician executive with extensive experience in oncology clinical development, medical affairs, and pharmacovigilance across global pharmaceutical and biotechnology organizations. She currently serves as Immuneering’s Vice President of Clinical Development, leading oncology programs from early clinical development through late-stage trials. She is also the Founder and CEO of Hayreh LLC, a pharmaceutical and biotechnology consulting firm providing clinical strategy, medical monitoring, and pharmacovigilant support for oncology programs. Previously, she held senior leadership roles including Senior Medical Director at Janssen Pharmaceuticals (Johnson & Johnson), Clinical Trial Lead (Medical Director) at Bristol Myers Squibb, Global Medical Affairs Leader and Global Safety Physician at AstraZeneca, and Senior Manager in Global Safety and Medical Communications at Amgen. Vinny received her medical degree from Grace University and completed post-graduate training at the University of California, Los Angeles.
Loretta Sullivan, MD, MPH
Loretta Sullivan, MD, MPH, has dedicated her life to improving global health. Over the last decade, she has held clinical leadership roles within the biopharmaceutical industry, including Genentech/Roche, Lilly, Astellas, J&J, ALX Oncology and Clovis Oncology. Prior to joining industry, Dr. Sullivan worked as an epidemiologist with the Centers for Disease Control and Prevention (CDC), World Health Organization (WHO), and various non-governmental organizations in over 30 countries. Dr. Sullivan earned her undergraduate degree from Dartmouth College, her MPH in epidemiology at UCLA and her medical degree at the University of Colorado with an internal medicine residency at UCLA and hematology/oncology fellowship at Stanford. She is a veteran, having served in the U.S. Public Health Service, and she is fluent in five languages. Loretta lives in Denver, Colorado, with her husband and three sons. In her spare time, she plays USTA tennis and loves to ski.