Coding (Platform)

NestJS: Schedule constrained jobs for queue processor background jobs

A service boundary accepts valid traffic but mishandles duplicate, stale, or unauthorized records. The affected area is queue processor.

Repair the queue processor background jobs implementation so it schedules the highest-priority jobs that fit and defers the remainder deterministically.

Evidence

Affected surface: NestJS / queue processor.
Observed failure family: schedule constrained jobs.
Scope policy: authorized must equal true.

What this task practices

This coding (platform) exercise trains the same sequence expected in an interview: understand the prompt, make assumptions explicit, produce a concrete answer, and explain the decisions behind it. The task is marked medium difficulty. The private workspace adds the tools required by this round, such as recording, code execution, diagrams, evidence panels, or structured notes. It also preserves the attempt so later feedback can be compared with previous work. Evaluation is based on task-specific criteria and the candidate seniority selected in the preparation path. Public pages never expose the reference solution, hidden tests, evaluator instructions, or another candidate’s work.