Cecilia Stallsmith

Cecilia Stallsmith is an experienced marketing professional with a strong focus on developer products and ecosystems. Currently serving as the Head of Marketing at Lovable since September 2025, Cecilia is also a Partner and Co-founder at Calyx Consulting, a consultancy dedicated to helping founders and executive teams launch developer products. Previous roles include Fractional CMO at Prefect, Program Advisor at Heavybit Industries, where mentorship on platform marketing strategies was provided, and Advisor at CodeSandbox. Cecilia holds a B.A. in Psychology and English from Stanford University, completed in January 2011.