Cecilia Stallsmith in

Cecilia Stallsmith

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Head of Marketing at Lovable
📍 Menlo Park, California, United States

Cecilia Stallsmith is the Head of Marketing at Lovable and an active angel investor. As the co-founder of Calyx Consulting, she specializes in go-to-market strategies for developer-focused products, drawing on her experience from roles at Slack, Box, and Bessemer Venture Partners. She earned her B. A. from Stanford University.

Cecilia is passionate about working with ambitious, fast-moving teams to solve complex challenges. She finds deep satisfaction in creating crisp, simple messaging for highly technical products, transforming complicated value propositions into clear and compelling narratives. Her entire career has been focused on building thriving developer ecosystems.

She was named to the Forbes 30 Under 30 list for Enterprise Technology.

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Experience
7 Years
Current Role
Head of Marketing
Job Level
Mid-senior
Location
Menlo Park, California, United States
Personality Overview

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Priorities

Topics Cecilia cares about

Developer GTM Strategy
Her consultancy, Calyx, specializes in launching developer products and building healthy ecosystems. She has worked on GTM launches for companies like Stripe, 1Password, and Airtable.
Technical Product Messaging
She explicitly states that she loves distilling the value of complicated, highly technical products into crisp and simple messaging that resonates with users.
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Career

Work history

9-2025
Head of Marketing
Lovable
6-2020
Partner & Co-founder
Calyx Consulting
8-2023 - 4-2024
Fractional CMO
Prefect
5-2016 - 1-2024
Program Advisor
Heavybit Industries
6-2021 - 12-2022
Advisor
CodeSandbox
In the press

Media appearances

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Education
2007 - 2011
B.A.
Stanford University
Social presence
in
Behavioral profile

DISC profile (public)

DISC behavioral profile

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