David Gengler
Performance & measurement-focused marketing leader for digital-first companies
About
I’ve led marketing at health tech and digital-first companies where the line between performance and product is thin—and results matter fast. I work best when I’m not just optimizing campaigns but helping shape the bigger picture: how a business grows, how customers experience it, and where the next inflection point might be hiding.
My experience includes managing seven-figure budgets, building marketing teams from scratch, and working directly with product, ops, and CX to move the business forward. While my background is in digital marketing, my interest has always been broader: how systems scale, how teams align, and how good businesses get better.
This site is where I share what I’ve learned about performance, measurement, and growth.
Skills
Performance Marketing
Maximized ROI across paid search, social, email, and affiliate channels—reducing CAC by 25% and driving sustained revenue growth.
Cross-Functional Leadership
Built strong collaboration between marketing, product, data, and finance teams to ensure scalable and consistent execution.
Customer Acquisition
Orchestrated acquisition strategies across Google, Meta, and partner channels—delivering measurable audience growth and increased conversion rates.
Lifecycle & Retention
Boosted retention through high-impact lifecycle marketing, achieving 30% YoY email growth and 60% YoY SMS growth.
Analytics & Decision-Making
Developed end-to-end analytics systems to inform performance insights, attribution, and strategic planning across campaigns.
Strategic Planning & Execution
Created and implemented full-funnel marketing strategies tailored to brand stage, market conditions, and business goals.
Contact
Have a question about something I’ve written, want a second opinion on your measurement setup, or curious about potential ways to collaborate?
From time to time I partner with teams on focused projects around performance, attribution, and growth systems. I’m also always interested in thoughtful conversations about marketing leadership and building better marketing organizations.
Connect on LinkedIn Email Me