Senior Backend Engineer (Founding Team)

Senior Backend Engineer (Golang) – Data Infrastructure & Recommendations

Fulcrum SaaS is a conversion rate optimization platform that powers product recommendations for ecommerce brands. Our infrastructure processes high‑volume behavioral events, feeds real‑time recommendation algorithms, and serves personalized experiences at scale. We operate in a multi‑tenant SaaS environment where data correctness, low latency, and system reliability are non‑negotiable. Our stack includes Go, Bigtable, BigQuery, Pub/Sub, and a dual‑store architecture (operational + analytical) that we designed from scratch.

We are looking for a senior backend engineer who has built and operated production data systems under real load—no prototypes or internal tools. This is a core infrastructure role at the intersection of our operational and analytical data layers. You will own the systems that move behavioral event data from ingestion through transformation into our recommendation engine. ...