Quanterix, a company developing innovative biomarker analysis products, has chosen William Geist as its new chief operating officer.

Geist has more than 25 years of experience in the industry, most recently serving as vice president and general manager of Thermo Fisher Scientific’s protein and cell analysis and quantitative polymerase chain reaction business units. He also helped to lead Thermo Fisher bioscience division’s COVID-19 task force.

The new chief operating officer will focus on growing the firm’s digital biomarker measurement technology Simoa, including its neurology franchise, as well as COVID-19, infectious disease, immunology and oncology products.