Chief Design Engineer Interview Questions

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Given a legacy Perl/Oracle-based authenticator, serving 10,000+ entities, which builds granular user-by-user and table-by-table permissions as a series of regular expressions (grant superuser to *billing*, grant report-only to *social*security*, etc.), how would you redesign and seamlessly cut over the system to a more modern industry-standard (deny-by-default, RBAC/ABAC) model without impacting current user experience or requiring systemwide re-enrollment?
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Chief Architect

Interviewed at athenahealth

4.1
Dec 12, 2016

Given a legacy Perl/Oracle-based authenticator, serving 10,000+ entities, which builds granular user-by-user and table-by-table permissions as a series of regular expressions (grant superuser to *billing*, grant report-only to *social*security*, etc.), how would you redesign and seamlessly cut over the system to a more modern industry-standard (deny-by-default, RBAC/ABAC) model without impacting current user experience or requiring systemwide re-enrollment?

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