Mechanical Dry CSU Engineer

Bechtel Corporation • Chandler, AZ

8h • Hybrid

About The Position

The Mechanical Dry CSU Engineer leads and executes discipline commissioning and start-up (CSU) for mechanical and high-purity process and utility systems on Bechtel’s Fab 62 semiconductor facility project in Chandler, Arizona. The position plans and supervises work from construction completion through system turnover to operations, ensuring that systems are safely installed, verified against design requirements, and ready for wet commissioning, process qualification, startup, and handover. The role is accountable for safe, quality execution within the CSU plan established by the Commissioning Manager.

The engineer works with Engineering, Construction, Vendors, Quality, Facilities, and Operations teams to commission cleanroom HVAC and related mechanical systems, process and building utilities, and high-purity systems. Responsibilities span commissioning planning, field inspections and testing, turnover and documentation, vendor and contractor coordination, and safety and quality compliance. The project is an advanced semiconductor fabrication facility at Intel’s Ocotillo campus and supports expansion of domestic semiconductor manufacturing capacity.

The position is designated as part-time telework and requires at least three days of in-person attendance per week at the assigned office or project. Weekly in-person schedules are determined by the individual and supervisor in consultation with functional or project leadership.

Requirements

• Bachelor’s degree in Mechanical Engineering or a related discipline; equivalent commissioning experience may be considered.
• At least 5 years of mechanical commissioning experience.
• Experience in semiconductor, pharmaceutical, data center, or advanced manufacturing facilities.
• Knowledge of HVAC systems, cleanroom design and operations, hydronic systems, pumps and rotating equipment, heat exchangers, utility distribution systems, and mechanical equipment startup.
• Ability to read and use P&IDs and mechanical drawings.
• Knowledge of commissioning documentation processes and hands-on commissioning experience in relevant systems.
• Ability to lead and mentor a field CSU team and manage schedule and turnover gates.
• Strong understanding of CSU processes, including test packages, system turnover (green tag to blue tag), and safe systems of work.
• Working knowledge of LOTO and energization permitting.
• Excellent coordination and communication skills with construction, engineering, vendors, and the client.
• Ability to troubleshoot interconnected systems while they are operating.
• Ability to ensure procedures and equipment setups meet regulatory, OSHA, and environmental safety standards.

Nice To Haves

• Experience with mission-critical utility systems.
• Familiarity with mechanical completion and turnover processes.
• High-purity systems experience, including ultrapure water, bulk and specialty gas, and chemical distribution, with SEMI / AGS qualification, passivation, and purity verification.

Responsibilities

• Develop mechanical commissioning plans and procedures; support commissioning schedules and turnover strategies.
• Review design documents, specifications, P&IDs, equipment submittals, and vendor documentation.
• Participate in constructability, HAZOP, and operational readiness reviews.
• Inspect mechanical systems and verify installations against approved drawings and specifications.
• Conduct system walkdowns, manage punch lists, verify mechanical completion, and execute pre-functional and functional inspections.
• Coordinate system turnover from Construction to Commissioning.
• Verify equipment alignment, rotation, lubrication, preservation, labeling, and identification; review pressure-testing, leak-testing, flushing, and cleaning records.
• Verify valve lineups, equipment accessibility, safety interlocks, and mechanical protections.
• Support commissioning of cleanroom HVAC, AHUs, MAUs, exhaust, process cooling water, chilled water, condenser water, heating hot water, bulk chemical distribution support, UPW support utilities, vacuum, compressed dry air, mechanical equipment skids, and waste-treatment mechanical systems.
• Develop and execute commissioning check sheets; complete Mechanical Completion Certificates; generate System Turnover Packages; review subcontractor turnover documentation; and maintain commissioning databases and digital turnover systems.
• Ensure compliance with ISO 9001 and project quality requirements.
• Coordinate OEM vendor startups and interface with construction contractors and trade partners.
• Monitor commissioning progress, resolve technical issues, and participate in daily coordination meetings.
• Support LOTO procedures and Job Hazard Analysis reviews; comply with project EHS requirements and promote a zero-incident safety culture.
• Prepare or contribute to mechanical completion check sheets, system boundary drawings, turnover packages, functional test procedures, commissioning reports, punch list reports, startup readiness reviews, and mechanical system acceptance documentation.
• Lead and mentor the field CSU team and manage execution to schedule and turnover gates.
• Apply Bechtel’s stated behaviors: collaborate, communicate effectively, prioritize customer needs, make timely decisions, solve problems, serve as a positive role model, adapt to interconnected systems, and ensure safety and regulatory compliance.

Benefits

• Bechtel states that it offers robust benefits and refers applicants to its Bechtel Total Rewards information; specific benefits are not listed in the posting.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior