Honeycomb Observability Day
6-7 October, 2026
London
Real talk from real practitioners
The rules of production are changing. AI is introducing complexity that traditional observability was never designed for, and the teams navigating it best are the ones who understand their systems most deeply.
O11yDay London is back, bigger than before. Join developers and engineering leaders sharing what’s actually working in the agent era: real challenges, hard-won lessons, honest outcomes. Join us for a day of practitioner-led talks on 7 October. Want to go deeper? Day 1 (6 October) offers optional hands-on workshops — registration coming soon. Practitioner talks. Hands-on workshops. A room full of people who get it.
Sam Newman —
Dark Software Factories
Keynote
Author of Building Microservices and Monolith to Microservices, Sam has spent years helping organisations understand how their systems actually behave in production.
His keynote explores the hidden complexity accumulating inside AI-augmented systems and what we need to do about it.
Corey Quinn —
Tokenomics
Corey is Chief Cloud Economist at The Duckbill Group and one of the most sharp-tongued voices in cloud infrastructure.
He’ll be unpacking the real cost structures emerging as AI workloads hit production, because tokens aren’t free, and pretending otherwise is expensive.
Yana Chen — Inference Reliability at Cloud Scale
Yana works in the infrastructure team at Baseten (a cloud scale inference platform with customers like Notion, Cursor and Lovable). For them, inference reliability isn’t a nice-to-have, it’s the product.
She'll be sharing hard-won lessons from running ML inference at scale: what breaks, what doesn't, and how you actually debug it.
Brian Scanlan & Kesha Mykhailov —
2x-ing engineering at Fin
In 2025, Fin (formerly Intercom) took on an ambitious goal to double the throughput of their engineering team by going beyond building fancy demos, and instead taking advantage of AI tooling to get real features and large existing SaaS codebase into the hands of paying customers. The exciting part is that it worked.
In this talk Brian and Kesha will share their lessons and learnings when building with AI agents, what has and hasn’t worked when faced with scaling beyond 2x productivity.
Event details
Venue
Convene Bishopsgate, London
Day 1 - Tuesday 6 October
Workshops: Hands-on, small-group sessions for engineers who want to go deep.
Day 2 — Wednesday 7 October
Conference: A single track of practitioner talks. No fluff, no vendor theatre.