Lead Quantity Surveyor – Industrial & EPC Projects

Job Title: Quantity Surveyor
Location: The Woodlands, TX

Overview

The Quantity Surveyor (QS) is responsible for independently measuring, verifying, reconciling, and validating construction quantities to support accurate cost control, contractor payment evaluations, and change management across complex construction projects.

Responsibilities

• Perform quantity takeoffs from engineering drawings, specifications, 3D models, and construction documentation.
• Develop, review, validate, and reconcile bills of quantities, material takeoffs, and contractor quantity submissions.
• Verify installed quantities against drawings, field measurements, contractor progress reports, and approved scope.
• Review contractor payment applications, progress claims, and quantity-based invoices to confirm claimed quantities and progress are reasonable and supported.
• Evaluate quantity growth from design changes, scope modifications, and field conditions, distinguishing original-scope quantities from genuine growth.
• Support estimators and cost engineers by validating quantities, identifying scope gaps, and reconciling estimates, revised designs, and construction quantities.
• Maintain quantity registers, measurement sheets, reconciliation reports, and auditable records of quantity changes.
• Verify field progress, installation quantities, and reported completion directly with construction teams.
• Challenge contractor quantity submissions where warranted.

Requirements

• Strong QS or construction quantity management experience on large-scale industrial, power generation, data center, infrastructure, or EPC projects.
• Proven quantity takeoff and measurement capability.
• Knowledge of civil, structural, mechanical, piping, and electrical construction quantities; multi-discipline experience preferred.
• Experience with BOQs and contractor quantity validation.
• Ability to interpret engineering drawings, specifications, and construction documentation.
• Strong Excel skills.

System One, and its subsidiaries including Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. We help clients get work done more efficiently and economically, without compromising quality. System One not only serves as a valued partner for our clients, but we offer eligible employees health and welfare benefits coverage options including medical, dental, vision, spending accounts, life insurance, voluntary plans, as well as participation in a 401(k) plan.

System One is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, age, national origin, disability, family care or medical leave status, genetic information, veteran status, marital status, or any other characteristic protected by applicable federal, state, or local law.

#LI- : #209-Rowland Houston