constantin

Growth and performance marketing leader, 14+ years, based in Austin. Active in DeFi since MakerDAO and AAVE launched, so crypto is my category rather than a pivot.

Most recently Partner, Growth at Echo Base Global running TabTrader, a mobile crypto trading terminal with around 400K active users, where I cut CAC 79% quarter over quarter at 7.1x ROAS by rebuilding measurement and creative testing discipline rather than spending more.

Before that: first marketing hire at PayJoy, where I built the function to 23 people across seven countries and grew customers 6x in 15 months in a regulated, trust-heavy consumer fintech. Agency-side I managed north of $340M a year in media for a global consumer brand across search, social, YouTube, TikTok, programmatic and influencer.

What I'm great at:

1. Consumer paid acquisition at scale, held to CAC, LTV and payback rather than platform ROAS
2. Measurement that survives scrutiny: marketing mix modeling, geo-lift and holdout incrementality testing. I've killed channels that looked strong in-platform and failed a holdout
3. Building the tracking layer, not just reading reports from one. AppsFlyer implemented from scratch twice, Segment CDP twice
4. AI-native in practice. I run Claude and n8n agentic workflows in production daily, including a weekly analysis system that compressed hours into minutes and flags data it doesn't trust before drawing conclusions from it
5. SEO, AEO and GEO hands-on, plus building functions and teams from zero

Looking for: VP or Head of Growth in consumer crypto, fintech or subscription. Remote or Austin. Genuinely interested in products where the unit economics have to work, not just the growth chart.