Hey, I'm Seunfunmi Adegoke

Senior AI Engineer

I make production AI systems measurable and reliable — agents, RAG, evals, and the infra they run on. Backend-first background (YC, payments, async systems), then years shipping LLM systems that have to survive real traffic.

Here's my resume.

writing

February 2026

When Your Observability Tool Can't Observe: Langfuse, OpenTelemetry, and the Span That Was Too Large

When I added Langfuse tracing to an application, I expected the usual debugging cycle. What I didn't expect was the tracing infrastructure itself becoming the source of failures.

All musings