Tobias Ehrhardt

A fractional CTO audits your code before investors do, then owns the fix or the story.

Match your technical leadership model to runway stage, not just hiring instinct.

How to stay accountable across multiple client engagements as a fractional CTO.

Seed-stage founders often hire full-time CTOs to ease anxiety, not solve an actual staffing problem.

Defaulting destructive operations to simulation catches mistakes before they harm real users.

Deployment status checks can't catch empty sites built before content exists.

A feature flag that gracefully pauses one channel lets others run while preserving diagnosis.

Moving safety checks before tool calls catches harmful actions before they cause real damage.

Guardrails that bend to persuasion aren't guardrails—they're just suggestions.

A single retry wrapper at the API call point beats scattered try/catch logic everywhere.