Tyrrell graduated from the University of Cambridge with first-class honours,[3] featured on the front page of The Times for her work to deliver the Oxford–AstraZeneca COVID-19 vaccine,[4] and is known for making international news for being the first woman from one of the world's top universities, to participate in Miss World.

[14] Tyrrell works as Investor and Chief of Staff at Walden Catalyst, a $550 million early-stage deep tech venture capital fund led by the former President of Samsung, Young Sohn.

[15] Tyrrell is a Governor for Cambridge University Hospitals NHS Foundation Trust, Council Member of the Royal Society of Medicine, Public Health and Epidemiology Section, and a former president of the Cambridge University Global Health Society.

[17] Having declared herself a feminist, Tyrrell faced criticism from Germaine Greer, herself a Cambridge University graduate.

[22] Tyrrell has undertaken humanitarian projects in countries around the world including India, Brazil, Côte d’Ivoire, Ghana, and Rwanda.