A lead quality assurance (QA)/quality control (QC) engineer in civil engineering is responsible for ensuring the quality and safety of construction projects. They review and approve documents, monitor the project quality plan, and ensure compliance with codes and standards.

Responsibilities -
1. Review documents: Review and approve documents such as inspection and test plans, field inspection reports, and calibration certificates
2. Monitor quality plan: Monitor the implementation of the project quality plan and ensure it meets project requirements
3. Review non-conformance reports: Review and handle non-conformance reports (NCRs) and surveillance issues
4. Monitor requests for inspection: Monitor the status of requests for inspection (RFIs) and support the site manager
5. Ensure compliance: Ensure compliance with codes, standards, and specifications
6. Organize training: Organize QA/QC training programs
7. Communicate with customers: Coordinate quality-related correspondence with customer representatives

QA/QC engineers play a critical role in construction projects by ensuring that the final product meets all requirements and that defects are identified and corrected early.