Cesar Castillo
WHO I AM
I design and build AI-powered lifecycle marketing platforms, MarTech systems, and multi-ESP architectures that help organizations scale customer engagement. My work spans lifecycle strategy, marketing technology, reusable systems, customer journey orchestration, personalization, and cross-functional implementation across marketing, engineering, product, and data teams. Using AI, structured prompting, rule-based validation, and ESP technologies, I build internal tools and scalable workflows that improve operational efficiency, automate production, and deliver reliable customer communications at scale.
COMPANIES
I've worked with
Apple
Google Fiber
DoorDash
Indeed
Target
OpenSea
Strava
InboxMonster
FITURE
ESPs
I've mastered
Iterable
SFMC
Braze
Zeta Marketing
Customer.io
HubSpot
AND MORE.





