Blog

Technical writing focused on reliable systems, performance, and pragmatic architecture.

• Microservices Challenges — boundaries, failures, observability
  11/14/2025

  Practical guidance on service boundaries, failure domains, and building observable systems.

• Payment Webhooks — reliability, retries, signing, idempotency
  11/14/2025

  Designing webhooks that deliver reliably across providers with strong verification and safe retries.

• SQL Performance — indexing, EXPLAIN plans, query tuning
  11/14/2025

  A pragmatic guide to making SQL fast with the right indexes and query shapes.

• Wallet Ledger Systems — how they work and why they matter
  11/14/2025

  A practical look at double‑entry ledgers, atomic transfers, and building reliable wallet systems.