Justworks·Backend Engineer

Justworks Backend Engineer interview experience

No offer

Hard

Neutral

New York, NYPosted Jan 2026 · Candidate report, summarized by Dataford

My process started with a phone screen, then I ran into an online coding assessment where the problem centered on building a banking system.

The questions ramped in complexity, and it felt like moving from something medium into harder territory as the rounds progressed. I got through to the next step, but it wasn’t a clean cruise.

After that, there was a behavioral interview with a staff engineer, and it was fairly straightforward. Then I went onsite for a longer day and a mix of tasks: system design and data-modeling plus API design focused around something like a Jira board, then a debugging exercise. The debugging part used a purposely messy script—confusing structure and variable naming—where the goal was to figure out why a

Create a free Dataford account to unlock the full round-by-round breakdown, the questions asked and the outcome.

Read the full report Read the full report

Preparing for this interview?

Justworks Backend Engineer interview guideThe full process, round by round, with the question bank Practice Backend Engineer interview questionsReal questions from this role across companies All Justworks interview guidesEvery role we cover at this company