HackerRank online assessment
Also called HackerRank OA, online assessment, OA
A timed, automatically scored coding test sent before any human interview, used by a large number of firms including Goldman Sachs.
An online assessment is a timed set of coding problems marked by hidden test cases with no interviewer present. Goldman Sachs states that engineering applicants take a HackerRank assessment, alongside a video interview of about 30 minutes, before the later stages.
Because the marking is automated, the only thing scored is whether your code passes. Nobody reads your reasoning, and nobody gives partial credit for an approach that did not compile.
What it means for you
This is the one stage where grinding practice problems genuinely is the right preparation, and it is worth being clear about that, because the same preparation transfers poorly to every round that comes after it.
The reversal catches people out. You spend weeks training to solve silently and fast, pass the assessment, and then walk into a live round where saying nothing is itself the failure. The skill that got you through the OA is close to the opposite of the one being tested next.
Edge cases decide it more often than algorithmic elegance. Hidden tests are where empty inputs, single elements and integer overflow live, and a clever solution that misses them scores below a plain one that does not.
Where you will meet it
Sources
Built from what Goldman Sachs publishes about its own process. No leaked question lists. The questions you get are generated against your own resume, so they are not from anyone else's interview.
Sources last checked . Hiring loops change, so this date is the honest limit on everything above.
Reading about it is not the same as saying it.
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