Bio
Katelyn Lesse is the Head of Platform Engineering at Anthropic. She leads engineering for the Claude Platform, including APIs and developer tooling, as well as Anthropic’s product infrastructure. She has experience building and scaling engineering organizations across fintech and developer platforms, with previous leadership roles at Stripe and Betterment.
Session (1)
Additional Speaker Details
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Lesse is Head of (Platform) Engineering at Anthropic, leading the Claude Developer Platform (APIs, SDKs, docs, console). Her session is a direct line into what it takes to ship reliable, long-running agents in production: context management (MCP, memory, context editing), sandboxed code execution, and the infrastructure most agent products get wrong. Attend if you build on the Claude API/SDKs and want platform-level lessons from the team designing the agentic harness.
Speaking style
Recent talks (2)
GitHub
@klesse413- klesse413/cc-agents★ 1Claude Code sub agents (Git workflow + testing).
- klesse413/example-code-editing-agentA small code-editing agent example (Go), following an ampcode.com tutorial.
- klesse413/scpsSCPS: Secure Cloud Password Splitter (JavaScript).
- klesse413/dotfilesPersonal configuration / dotfiles (Vim Script).
Recent writing (2)
- The testing pyramid still holds · blog · Apr 2026
- The human + agent software team wins · blog · Feb 2026
Podcasts & interviews (1)
- The Secrets of Claude's Platform From the Team Who Built It (with Angela Jiang & Katelyn Lesse, Anthropic) · AI & I (Every, host Dan Shipper) · May 2026