Mechanical QA SME/ Owner's Representative in MESA, Arizona at OnQGlobal Inc

At OnQCx, we pride ourselves on maintaining the highest standards of quality and safety while building long-lasting relationships with both our clients and employees. If you are looking to join a team that values technical excellence, leadership, and continuous growth, we'd love to hear from you.

Our team members are consummate professionals who are well respected by our Fortune 100 clients in the semiconductor, cleanroom, manufacturing, and mission-critical data center industries.

Our mission is to deliver exceptional results for our clients through integrity, professionalism, and partnership. We are committed to helping our clients achieve operational excellence while fostering a culture built on honesty, accountability, performance, collaboration, and trust.

Role Overview

The Mechanical Quality Assurance Owner's Representative will act as the owner's subject matter expert for all mechanical systems on site. This role combines technical oversight, quality assurance, constructability review, and stakeholder coordination to ensure that mechanical installations meet project specifications, industry standards, and client expectations.

The ideal candidate brings extensive experience supporting mission-critical facilities, including hyperscale data centers, and possesses deep expertise in chilled water systems, HVAC infrastructure, mechanical equipment installation, testing, and turnover activities.

Key Responsibilities

• Serve as the owner's primary mechanical subject matter expert during construction.
• Monitor installation quality and verify compliance with project drawings, specifications, codes, and standards.
• Conduct field walks and inspections of mechanical systems and equipment.
• Review mechanical submittals, RFIs, design changes, and technical documentation.
• Identify quality concerns, installation deficiencies, and construction risks and work collaboratively toward resolution.
• Support constructability reviews and provide technical guidance to project stakeholders.
• Witness testing, startup, flushing, pressure testing, TAB activities, and equipment commissioning.
• Verify readiness for system turnover and support final acceptance activities.
• Track deficiencies, punch list items, and corrective actions through completion.
• Collaborate with commissioning teams, contractors, design teams, and owner stakeholders.
• Provide regular reporting on mechanical quality, project risks, and construction progress.

Mechanical System Experience

Strong experience with:

• Chilled Water Plants
• Chillers
• Cooling Towers
• CRAH and CRAC Units
• Air Handling Units (AHUs)
• Hydronic Systems
• Pumps and Pumping Systems
• Heat Exchangers
• Mechanical Piping Systems
• Building Automation Systems (BAS)
• HVAC Controls
• Water Treatment Systems

• 10+ years of experience supporting large-scale commercial, industrial, mission-critical, or data center construction projects.
• Strong mechanical construction, commissioning, QA/QC, or owner's representative experience.
• Demonstrated expertise with complex HVAC and chilled water systems.
• Experience supporting data center, semiconductor, advanced manufacturing, pharmaceutical, or other mission-critical facilities preferred.
• Ability to interpret construction drawings, specifications, submittals, and technical documentation.
• Experience working directly with owners, contractors, design teams, and commissioning providers.
• Strong communication and problem-solving skills.
• Ability to work full-time onsite in a fast-paced construction environment.

Benefits

• Competitive compensation
• Medical, Dental, and Vision Insurance
• 401(k) with Company Match
• Paid Time Off and Paid Holidays
• Career Growth Opportunities
• Opportunity to work on cutting-edge hyperscale data center projects

Notice to all Employment, Staffing & Recruiting Agencies and Recruiters:
We respectfully request that agencies and recruiters do not directly contact our hiring managers. OnQGlobal does not accept unsolicited resumes from third parties unless a signed agreement is in place. Any unsolicited resumes submitted without an active agreement will be considered property of OnQGlobal and no fees will be paid. For inquiries regarding preferred vendor partnerships, please contact our Talent Acquisition team.