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Engineering writing and founder posts. Most recent first.
Engineering
The 7 seconds we missed
A follow-up. Five days after we published 'From 17 minutes to 2 minutes,' a real user from India waited 9.9 seconds for a single AWS badge to verify. The blog claimed 1-2 seconds. Here's what we missed, and the 4-line fix that runs at zero cost.
5 min readRead →Engineering
From 17 minutes to 2 minutes: how we made bulk credential imports 6x faster
Seven backend patterns that took our worst-case onboarding from 17 minutes down to 2 minutes 7 seconds. Parallel verification, atomic INSERT ON CONFLICT, statement-level triggers, NDJSON streaming, native vs OTA, and the observability layer we built to prove it worked.
14 min readRead →From the founder
The Day CertScore's Hiring Loop Closed for the First Time
An application security engineer came in cold and verified fourteen professional certifications, including OffSec OSCP and AWS Solutions Architect Professional. The first organic, real-world demo of cryptographic credential verification for hiring.
6 min readRead →