Online Assessment
MongoDB OA Questions [2026-2027]
1 OA problems reported by candidates who interviewed at MongoDB. Updated from 7 sources including LeetCode, 1P3A, Reddit, and more.
What to expect in the MongoDB OA
Online assessments (OAs) are typically the first technical screening step at MongoDB. Candidates receive a timed coding challenge (usually 60-90 minutes) with 2-3 algorithmic problems. The OA is graded automatically and determines whether you advance to phone screens or onsite rounds.
The 1 questions below are reported directly by candidates who have completed the MongoDB OA. Use them to understand the difficulty level, problem types, and topics the OA focuses on.
MongoDB OA questions (1 reported)
Other MongoDB interview rounds
Frequently asked questions
What does MongoDB ask in their Online Assessment (OA)?▼
Based on 1 reported OA questions, MongoDB typically asks algorithmic coding problems in their online assessment. See the full question list above for current patterns.
How many OA rounds does MongoDB have?▼
Most candidates report 1-2 OA rounds at MongoDB. The OA typically includes 2-3 coding problems with a time limit of 60-90 minutes, depending on the role and team.
How hard is the MongoDB OA?▼
The MongoDB OA difficulty varies by role. Software engineering OA problems are typically Medium-level on LeetCode. Check the specific questions reported on this page for current difficulty patterns.
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