We're seeking an experienced and strategic Lab Director to lead operations for a high-complexity, high-volume toxicology laboratory focused on in vitro testing. This is a senior leadership role requiring a balance of scientific expertise, operational oversight, and commercial acumen in a multi-site environment. The ideal candidate will drive scientific quality, client engagement, financial performance, and team development with a strong general management mindset. Day to day you will: Lead daily lab operations to ensure quality, efficiency, and compliance with GLP and internal standards. Collaborate with key clients on study-based and consultative toxicology testing, maintaining strong, transparent relationships. Oversee financial performance of the site, including labor planning, vendor management, and resource optimization. Build and develop a high-performing team of 60–80 employees through coaching, training, and career pathing initiatives. To be successful you should have: 10–15 years of experience in toxicology with at least 7 years in a leadership role managing complex lab teams. A bachelor's degree in science, business, or a related field (Master's preferred). Experience working with tobacco or nicotine product testing and a deep understanding of in vitro toxicology methods. Proven track record in budget management, customer engagement, and regulatory readiness, including GLP compliance.