systems engineer {{forumTopicSubject}}

A systems engineer is a person who brings together various subsystems into a cohesive whole. The purpose of this is to enable systems to work together to generate overarching functionality that is useful for the business in question.
https://www.fieldengineer.com/skills/system-integration-and-validation-engineer-ericsson

IT and telecom companies need systems integration & validation engineers because they frequently rely on multiple systems from a range of vendors. The job of a systems engineer is to work on these systems, bring them together, and then test that they work as intended.