Essential Duties and Responsibilities Railcar troubleshooting using PTU and other tools and technological devices consistent with relevant technical documents; Repairing/replacing railcar parts, as warranted, based on testing and/or troubleshooting results; Reviewing and using various commissioning documents to guide and complete testing and commissioning tasks and objectives; Following test procedures and work instructions to complete requisite testing; Using laptops with subsystem software to troubleshoot various railcar systems – using technology in an optimal fashion to test and troubleshoot; Logging, reporting, and tracking issues discovered during commissioning until such issues are closed/resolved; Maintaining commissioning records as a part of the car history book; Providing support to the end customer/client on in-process inspections and final functional inspections before delivery; Performing field service modifications at the end customer’s designated locations consistent with relevant instructions and procedures; Providing on-site technical support to end customer/client, as requested; Collaborating with relevant technical and engineering personnel to complete testing and commissioning to ensure the high-quality and reliable product that meets the end customer’s needs, requirements, objectives, and specifications; Understanding and following company and industry safety rules, practices, and procedures; Travelling to off-site locations, as necessary and assigned; Able to work irregular hours if needed. To the extent necessary and permissible (as agreed-upon by the relevant bargaining unit, namely IBEW Local 134, and as specified in the Electrical Worker Job Description) COF Engineers and other similar engineering and technical staff shall incorporate the wiring skills and services of bargained-for Electrical Workers into the continuity, insulation, and high voltage/potential testing processes.