A QA/QC Inspector (CSWIP, API) job involves performing inspections, testing, and documentation for mechanical, piping, and welding work to ensure compliance with project specifications, codes, and standards. Key responsibilities include witnessing non-destructive testing (NDT) and destructive testing, reviewing Welding Procedure Specifications (WPS) and Procedure Qualification Records (PQR), and verifying welder qualifications. The role requires strong knowledge of quality management systems, NDT techniques, and the relevant CSWIP and API certifications.