Online Assessment
BlackRock OA Questions [2026-2027]
7 OA problems reported by candidates who interviewed at BlackRock. Updated from 7 sources including LeetCode, 1P3A, Reddit, and more.
What to expect in the BlackRock OA
Online assessments (OAs) are typically the first technical screening step at BlackRock. 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 7 questions below are reported directly by candidates who have completed the BlackRock OA. Use them to understand the difficulty level, problem types, and topics the OA focuses on.
BlackRock OA questions (7 reported)
Other BlackRock interview rounds
Frequently asked questions
What does BlackRock ask in their Online Assessment (OA)?▼
Based on 7 reported OA questions, BlackRock typically asks algorithmic coding problems in their online assessment. See the full question list above for current patterns.
How many OA rounds does BlackRock have?▼
Most candidates report 1-2 OA rounds at BlackRock. 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 BlackRock OA?▼
The BlackRock 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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