Short answer: use a durable asynchronous job with bounded retries, two-stage validation, and per-job temporary files; return a job ID quickly so load affects queue time instead of tying up HTTP connections. HR onboarding packets are a poor fit for a synchronous request. A packet may combine for...
Source: [Dev.to](https://dev.to/peterparker8991/nodejs-service-hr-onboarding-packets-asynchronous-jobs-validation-under-load-2oek)