Golang
BACKEND ENGINEER (GOLANG) – PLATFORM CORE
Location: Remote, European time zones, Full-time, Permanent
ABOUT FULLENRICH
Every go-to-market motion runs on data, but no single provider has ever had complete coverage. We solve that problem with waterfall enrichment: instead of relying on a single data source, we orchestrate 20+ premium providers around the world, automatically querying them until we find the best available contact information. The result is industry-leading coverage and data quality, helping sales and GTM teams connect with the right people faster.
What started as a better way to find emails and phone numbers has grown into a broader vision: becoming the trusted B2B data layer powering modern revenue teams and AI-driven workflows alike. Today, more than 5,000 customers, including companies like AWS, Deel, HubSpot, Clay, and Artisan, trust us to power their prospecting and enrichment.
Founded in Paris and now headquartered in San Francisco, we're a team of 50+ people across the US, Europe, LATAM, and Israel, growing quickly and building with speed, ownership, and ambition. That's where you come in.
ABOUT THE ROLE
At the heart of FullEnrich is our waterfall engine. It's the system responsible for deciding which data providers to call, in what order, under which conditions, and what happens when something fails. It works well today, but what we're building next is significantly more ambitious.
We're evolving the engine to become far more flexible and configurable, supporting account-specific requirements, dynamic routing based on different optimiza