3 answers published. Last candidate submission on Jul 21 2026, 9:17am PDT. Interview question asked to Software Engineers interviewing at Credit Karma, Rakuten, Blend and other companies. Original question asked: Adding indexes slows down write operations so how do you balance read speed against insert latency. Question last reported by a candidate interviewing at Oyo for a Software Engineer interview on Jul 25 2026, 2:13pm PDT.