Product Group Lead at Klarna. I build agentic commerce and payments systems, and write the public parts down.
fintech-lab is the current one: daily, tested artifacts on AI native fintech infrastructure. Each one ships with code, tests, and a measured result, not a screenshot.
| Repo | What it proves |
|---|---|
| fintech-lab | Settlement reconciliation that scores its own recall against injected breaks, and refuses to force a match |
| agentic-commerce-protocol-poc | A working ACP merchant, mock PSP, and agent, with 39 protocol conformance tests |
| agent-bazaar | Agent to agent price negotiation where a typed protocol can veto the model |
| shopping-concierge | Plain English product search with price verification and freshness, not vibes |
| angelone-smartapi | A trading agent with rails it structurally cannot cross |
What I keep coming back to: money moves correctly only when the boring parts are exact. Idempotency, reconciliation, mandates, limits, and the audit trail. Most agent demos skip them.
Berlin. Co-founder at The Product Folks.