Senior QA/QC Engineer – Piping & Structural

Gradiant; Singapore; On-site; SGD 120,000 - 180,000; Full time

Job summary

Gradiant is seeking a seasoned QA/QC lead to own quality delivery on multi‑discipline EPC projects onsite. You will inspect materials and welds, verify codes and drawings, and coordinate with clients, PMT and subcontractors to ensure every joint meets Gradiant’s standards.

With 10+ years in QA/QC for EPC programs and preferring AWS CWI or CSWIP 3.1, you will drive NCRs, lead audits, and manage documentation, calibration logs, and drawings.

Qualifications

• Bachelor's degree in Mechanical or Chemical Engineering.
• 10+ years of QA/QC experience on multi-disciplinary EPC projects.
• AWS Certified Welding Inspector or CSWIP 3.1 preferred.
• Solid grasp of QMS, welding inspection, and piping fabrication/testing.
• Familiar with conventional NDT methods.
• Strong drawing and specification literacy with attention to detail.
• Clear communicator in a fast-moving environment.

Responsibilities

• Inspect visuals, fit-up, and materials against drawings, WPS, MDR, and MIL certificates.
• Verify cutting plans against actual material cuts and monitor NDE coverage.
• Review piping pressure test packs and compile weld/material summaries.
• Conduct site inspections at subcontractor workshops and coordinate witness inspections.
• Ensure quality aligns with Project Quality Plan, codes, and client specs.
• Raise NCRs for non-compliance and drive corrective actions to closure.
• Lead QA/QC audits to catch issues early and prevent rework.
• Maintain calibration records and ensure drawings are revised.
• Maintain full QA/QC record set and submit weekly reports.
• Represent Gradiant in meetings and quality walks.
• Deliver piping orientation sessions to PMT and subcontractors.
• Uphold HSE requirements on-site and contribute to safety briefings.

Skills

Attention to detail

On-site coordination

Independent worker

Education

Bachelor's degree in Mechanical or Chemical Engineering

Tools

NDE techniques

Welding inspection

AWS CWI / CSWIP 3.1

Job description

EPC Projects – Mechanical, Piping & Structural | Full-time | Site-Based

About Gradiant

Gradiant is a Different Kind of Water Company. With a full suite of differentiated and proprietary end-to-end solutions for advanced water and wastewater treatment powered by the top minds in water, the company serves its clients’ mission‑critical operations in the world’s essential industries, including semiconductors, pharmaceuticals, food & beverage, lithium and critical minerals, and renewable energy. Gradiant’s innovative solutions reduce water used and wastewater discharged, reclaim valuable resources, and renew wastewater into freshwater. The Boston‑headquartered company was founded at MIT and has over 1,400 employees worldwide. Discover us at www.gradiant.com.

The Role

You'll own QA/QC delivery across the full lifecycle of a project — from material verification and fabrication inspection through pressure testing and final documentation — working closely with clients, PMT, subcontractors, and notifying bodies to ensure every weld, joint, and system meets code, spec, and Gradiant's own standard of quality.

Key Responsibilities

Inspection & Testing

• Perform visual, fit-up, and material inspections against drawings, WPS, MDR, and MIL certificates.
• Verify cutting plans against actual material cutting and monitor NDE coverage against project requirements.
• Review piping pressure test packs and compile weld and material summary reports.
• Conduct site inspections at subcontractor workshops and coordinate witness inspections with clients and third parties.

Quality Assurance & Compliance

• Ensure construction quality aligns with the approved Project Quality Plan, applicable codes, and client specifications.
• Raise NCRs for non‑compliance, determine material disposition, and drive corrective and preventive actions to closure.
• Lead QA/QC audits and surveillance to catch issues early and prevent costly rework.
• Keep calibration records for measuring tools current and drawings at the latest revision.

Documentation & Reporting

• Maintain the full QA/QC record set — certificates, calibration logs, test results, inspection requests, and site instructions.
• Issue daily RFIs, compile final documentation for client acceptance, and submit weekly reports to the QC Supervisor.

Coordination & Stakeholder Management

• Represent Gradiant in construction and technical meetings, client quality walks, and daily toolbox talks.
• Liaise with the QA/QC Manager, notifying bodies, vendors, and subcontractors to keep quality aligned across every discipline.
• Deliver quality orientation sessions for piping to PMT, QC, and subcontractor teams.

Health, Safety & Environment

• Uphold HSE requirements on‑site and contribute to weekly safety briefings.

What You Bring

• Bachelor's degree (or equivalent) in Mechanical or Chemical Engineering.
• 10+ years of QA/QC experience on multi‑discipline EPC projects.
• AWS Certified Welding Inspector or CSWIP 3.1 certification preferred.
• Solid grasp of QMS, welding inspection, and piping fabrication/installation testing requirements.
• Working familiarity with conventional NDT methods.
• Strong drawing and specification literacy, with sharp attention to detail.
• Clear communicator, comfortable working independently in a fast‑moving, start‑up‑paced environment.

Gradiant is an equal opportunity employer. Qualified applicants will be considered without regard to race, color, religion, creed, gender, sexual orientation, gender identity, marital status, national origin, veteran status, disability, or any other protected class.