Tamara Joseph is a health care executive with diverse, global experience with publicly-traded and privately-held companies and public health non-profits. She is the Chief Legal Officer at Spero Therapeutics and has served as the general counsel at biotech companies Cubist Pharmaceuticals and Transkaryotic Therapies in Boston and Mayne Pharma in London. She previously served as a director of LTK Pharma, a French cell therapy biotech, and spent more than six years at Biogen Idec’s international headquarters in Paris, establishing legal, compliance, government affairs, and public affairs departments. Before entering the healthcare sector, Tamara served as a litigator and then an international corporate lawyer with Morrison & Foerster and as a litigator with Fried, Frank, Harris, Shriver, and Jacobson. She devoted significant time to advising non-profit organizations and indigent individuals while at those firms. She authored a submission in 1989 that successfully persuaded the U.S. Department of Justice to liberalize admissions for Jewish refugees from the USSR seeking political asylum. In 1991 she argued a case before the California Court of Appeals that established the right of indigent plaintiffs to have their cases heard in civil courts rather than by paid arbitrators, thereby protecting their access to justice. Tamara serves as a member of the audit committee of Crittenton Women’s Union, a non-profit dedicated to helping low-income women attain economic independence. She received a BA in economics from Duke University and law degrees from the University of Michigan, the College of Europe (Belgium), and the University of Paris.