Shared tables, schema per tenant or database per tenant for a multi-tenant SaaS
Where tenant isolation should live in a multi-tenant SaaS: what each option costs in migrations, queries and operations, and which questions settle it.
Writing
What is changing in payments, compliance and AI, and what it means for the systems behind them.
One tracking status model for DHL, FedEx, UPS and USPS shipments
How to normalise four carriers' tracking events into one shipment lifecycle, when to poll and when to use webhooks, and how to keep statuses from going backwards.
Designing payment routing that fails over safely
What a routing engine in front of many gateways decides on every transaction, how it measures gateway health, and when a failed payment can safely try again.
Designing chatbot handover: when a bot should pass the conversation to a person
How an omni-channel chatbot decides whether to act, ask or hand over, and how to pass a conversation to an agent without making the customer start again.
KYB onboarding: parallel checks, one risk decision, a full audit trail
How to design business onboarding that verifies a company and its owners quickly, sends only unclear cases to a reviewer, and can explain every decision later.