xAICoding·240 minMembers
Multi-Level In-Memory Database (CodeSignal OA)
Members only
CodeSignal-style multi-level OA used for the Backend Engineering Specialist track. You implement an in-memory key/value store with field-level operations, then layer on lexicographic scan, TTL, and fi...
SWE
Infra Eng
data-structure
ttl
in-memory-database
design-implementation
medium
Frequency
Low
Last asked
2026-04-01
Stage
oa · take-home
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