Senior QA/QC Engineer – Piping & Structural

Gradiant International Holdings Pte. Ltd.; Singapore; On-site; SGD 120,000 - 160,000; Full time

Job summary

Gradiant International Holdings Pte. Ltd.

in Singapore seeks a Quality Engineer to own QA/QC delivery across the full lifecycle of EPC projects, from material verification and fabrication inspection to pressure testing and final documentation, coordinating with clients, PMT, subcontractors, and notifying bodies to ensure welds, joints, and systems meet code, spec, and Gradiant's standards. The role requires 10+ years of QA/QC on multi-discipline EPC projects, familiarity with QMS, welding

Qualifications

• Bachelor's degree in Mechanical or Chemical Engineering.
• 10+ years of QA/QC experience on multi-discipline EPC projects.
• Certification: AWS CWI or CSWIP 3.1 preferred.
• Strong knowledge of QMS, welding inspection, and piping fabrication/installation testing.
• Working familiarity with NDT methods.

Responsibilities

• Perform visual, fit-up, and material inspections against drawings, WPS, MDR, and MIL certificates.
• Review piping pressure test packs and compile weld and material summary reports.
• Lead QA/QC audits and surveillance to catch issues early and prevent rework.
• Keep calibration records and ensure drawings are up to date.

Skills

QA/QC experience

Attention to detail

Communication

Independent worker

Education

Bachelor's degree in Mechanical or Chemical Engineering

Tools

AWS CWI

CSWIP 3.1

Job description

Quality Engineer

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.