Asked for AWS and got working Terraform for the VPC and Fargate plus the NAT cost trap flagged31.5.2026
Caught a check-then-act race on our session cache and handed me a double-checked lock fix in Go29.5.2026
Got a full REST spec for our payments API - idempotency keys, RFC 7807 errors, cursor paging, the lot27.5.2026
Full CRUD for our invoices resource - validation, cursor pagination, optimistic locking, done26.5.2026
Finally got burn-rate alerts instead of the flaky 5xx threshold that paged us at 3am for nothing25.5.2026
CQRS event-sourcing design where the aggregate enforces no-overdraft before any event is emitted24.5.2026