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David Cramer

Sentry co-founder; instrumentation essays

Co-founder and CTO of Sentry, the error-monitoring tool used by hundreds of thousands of developers to track exceptions and performance issues in production. Built Sentry originally as a Django side project before turning it into a venture-backed company. Writes prolifically on software instrumentation, observability philosophy, and the practicalities of building developer tooling.

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Last updated
10 May 2026
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