Kelleher was general manager of the Fab/Sort Manufacturing organisation. In that role, she was responsible for all aspects of Intel's high-volume
silicon manufacturing. In January 2018, she was promoted to senior vice-president of the Technology and Manufacturing Group, a unit of around 30,000 staff. Her work includes corporate quality assurance, customer fulfillment and supply-chain management, and strategic planning for the company's worldwide manufacturing operations. Later that year,
Forbes suggested that Kelleher would be well suited to replacing
Elon Musk as the Chairman of
Tesla, Inc. due to her experience in "high-tech and high-volume manufacturing". On 27 July 2020, Intel separated the Technology, Systems Architecture and Client Group (TSCG) into several teams, whose leaders report directly to the CEO. Kelleher was named as the head of the Technology Development Team. "An accomplished Intel leader, Kelleher has been head of Intel manufacturing, where she ensured continuous operations through the COVID-19 pandemic while increasing supply capacity to meet customer needs and accelerating the ramp of Intel’s 10nm process." ==Advocacy for gender equality in engineering ==