In addition, candidate introductions or resumes can only be submitted to our internal talent acquisition recruiting team if a signed vendor agreement is already on file and the third-party recruiter or agency has received formal instructions from our internal talent acquisition team to submit candidates for a particular job posting. Job Description Summary: The Commissioning Engineer is responsible for leading and supporting testing, commissioning, and initial energization activities for utility-scale high-voltage (HV) substations, battery energy storage systems (BESS), and photovoltaic (PV) facilities.