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Assessment Prep (Plain Language)

Some job applications include a coding test — HackerRank, CodeSignal, Codility, Karat, CoderByte, and others are the big names. WorkWingman tries to guess which one a job might use, so you can practice on the right site ahead of time. Here's the honest version of how that works.

The honest truth: we usually can't know in advance

There's no reliable way to look at a job posting and know which coding-test company they'll use. Most companies don't say. Sometimes they switch vendors. Sometimes different teams at the same company use different tools. The real answer almost always shows up for the first time in the email inviting you to take the test — after you've already applied.

So WorkWingman doesn't guess. It only tells you something when the job description actually names a platform — like "You'll complete a HackerRank assessment" or "final round is a Karat interview." If the description doesn't say, WorkWingman says so plainly instead of making something up.

What it looks for

WorkWingman scans the job description text for a handful of specific platform names: HackerRank, CoderByte, CodeSignal, Codility, and Karat. That's it — no guessing based on the company name, no guessing based on which applicant-tracking system (like Workday) the job uses. Only an actual mention of the platform's name counts.

When it finds one, it shows you the exact sentence it matched, so you can judge for yourself whether it's a real signal or just a coincidence (the JD might, for instance, be describing a candidate's past experience rather than this role's actual test).

What you'll see

  • A platform was mentioned: "This role may use HackerRank — practice here," with the sentence that triggered it, and a note to confirm once you actually get the invite.
  • Nothing was mentioned (the common case): a general list of common assessment platforms, so you can prep broadly instead of guessing at one.

Either way, you get links to where you can actually practice:

  • HackerRank — free Interview Preparation Kit and general practice problems.
  • Codility — free lessons covering the same style of problems its real assessments use.
  • CodeSignal — a free learning track plus background on what its assessment looks like.
  • Karat — general interview-prep info, and Brilliant Black Minds, a completely free program (mock interviews, feedback, study plans, community) for Black software engineers.
  • CoderByte — mostly an employer-side tool; if you see it mentioned, it's usually because a company sent you a CoderByte-hosted assessment link directly.

The one rule that never bends

WorkWingman never signs you up for anything and never pays for anything on your behalf. Every single link here just opens the platform's own website in a new tab. If a subscription costs money, that's clearly labeled — and it's entirely your call whether to pay for it. This is the exact same rule WorkWingman follows everywhere else it touches an outside account: your logins, your subscriptions, your choices. See connections-and-sso.md for how that same principle applies to every other account WorkWingman touches.