Coinbase OA Questions [2026-2027]
17 OA problems reported by candidates who interviewed at Coinbase. Updated from 7 sources including LeetCode, 1P3A, Reddit, and more.
What to expect in the Coinbase OA
Online assessments (OAs) are typically the first technical screening step at Coinbase. 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 17 questions below are reported directly by candidates who have completed the Coinbase OA. Use them to understand the difficulty level, problem types, and topics the OA focuses on.
Coinbase OA questions (17 reported)
Coinbase Karat Interview - Senior Java Dev - Feb 2022...
Coinbase | IC4 | Karat | April 2022...
Coinbase Karat Interview...
Coinbase OA...
Coinbase SWE Internship 2026 interview experience and assess...
Coinbase IC4 | India...
Coinbase IC5 | Offer...
Coinbase | SDE3 | Remote(India)...
Coinbase | IC4 | Reject | India...
Coinbase | IC5 | HackerRank | Phone Screen Tech Round | Reje...
Coinbase | SDE2 | Phone Screen | Karat...
Coinbase | India | Sep 2021...
Coinbase Online Assessment - Senior Staff...
Coinbase online assessment...
Other Coinbase interview rounds
Frequently asked questions
What does Coinbase ask in their Online Assessment (OA)?▼
How many OA rounds does Coinbase have?▼
How hard is the Coinbase OA?▼
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