Phone screening:

• One coding problem having to do with pallets and trailers.
• About 45 minutes.

Onsite:

• Two LeetCode-esque coding questions branded for the company.
• One design interview question asking to solve a recently-faced problem.
• About 4 hours.

In each interview, completion of all questions is very valued (it appears). At the end, performance improvements and alternatives are discussed.

Also, you may want to opt for their in-house laptops. The internet was a bit flaky for me.

Model pallet and trailer classes, adding pallets to trailers, and keeping track of weight over time, as well as retrieving that weight at a particular time.

Given a list of time-to-temp tuples, return the ranges of time where the temperature is greater than some threshold. Do this then, given a list of time-to-booleans representing whether the time-to-temp tuple is valid, return only those ranges which are valid.

Model a node, then create a tree using that model.