Engineering
Original, researched guidance on AI products, startup operations, security, payments, infrastructure, and the systems behind dependable digital products.
A practical guide to the entity, EIN, addresses, phone, banking, payment, and filing systems an international founder needs after forming a US company.
A practical look at the signals, confidence rules, and candidate-experience decisions involved in identifying duplicate vacancy listings.
Product principles for making job discovery faster, clearer, and more useful for candidates.
A practical comparison of merchant-of-record platforms and direct payment processing, including tax, fees, chargebacks, accounting, control, and migration risk.
A practical product-engineering perspective on building useful AI-powered software for people and teams.
A founder-friendly method for finding and preventing quiet cloud costs from NAT gateways, logs, public IPv4 addresses, data transfer, idle resources, and autoscaling.
A practical security guide to password recovery, session rotation and revocation, MFA changes, tenant authorization, support impersonation, and authentication testing.
A practical guide to email subdomains, SPF, DKIM, DMARC, alignment, suppression, monitoring, and separating critical SaaS messages from marketing traffic.
A practical system for turning real AI product failures into an evaluation dataset, calibrated graders, regression gates, and production monitoring before prompt tuning.
A practical restore-testing guide for SaaS teams covering RPO, RTO, databases, object storage, encryption keys, disposable environments, validation, and disaster drills.
A practical access-ownership system for company email, domains, cloud, source code, banking, billing, app stores, MFA, recovery, and founder offboarding.
A practical architecture for reliable payment webhooks using raw-body signature checks, durable inboxes, idempotent processing, state transitions, replay, and reconciliation.
A practical guide to dependency maps, timeouts, bounded retries, circuit breakers, queues, fallbacks, monitoring, kill switches, and provider exit plans.