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A lab design review still had a cron server for a nightly job. Classic Lambda had already stopped at 900 seconds. Name the primitive, or name the stop-rule that keeps the box.
For a mid-market retailer (~2.4M SKUs, checkout p95 1.9s → 420ms), DynamoDB cart + Step Functions checkout + conditional inventory cuts held 2.1k checkout RPS, after a cache-as-inventory mistake oversold 380 units in 12 minutes.
Palaniappan PFor a retailer DW exit (~42 TB logical, 18 nightly Glue jobs), Aurora→Redshift zero-ETL retired 11 jobs and cut dashboard freshness from 6h to ~15 min. Concurrency scaling on zero-ETL (March 2026) absorbed Monday open spikes.
Palaniappan PFor a .NET monolith (~220 endpoints, ~$28k/mo EC2), strangling 14 endpoints to Lambda cut p95 on those routes from 1.4s to 210ms. An early LMI move on spiky traffic wasted ~$3.2k in idle capacity provider hours.
Palaniappan PFor a multi-district LMS (~52k concurrent exam submissions in 30 min), SQS decouple + Aurora Serverless v2 held p95 submit at 410 ms, and off-peak monthly compute dropped 71% vs always-on EC2.
Palaniappan PFor a card-acquiring fintech (~12M authorizations/mo), Payment Cryptography + PCI-scoped account cut a modeled $18k/mo from the HSM rack lease, and fraud review queue p95 went from 2.4s to 380ms after an EventBridge Pipes idempotency fix.
Palaniappan PFor an enterprise lake (~38 TB Iceberg, 8.4k small files), S3 Tables managed compaction cut Athena scan spend 35%, and compaction OPEX is 90% lower than under pre-July 2025 pricing on the same workload.
Palaniappan PSES Global Endpoints (Dec 2024) add $0.03/1k for active-active failover across two regions. MREP decision matrix, replication rules, Tenant Management, and a reproducible readiness benchmark for architects choosing regional vs multi-region email.
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