Sr. Mechanical Engineer - Semi Conductor
Responsibilities
Lead mechanical engineering design development for a new build semiconductor plant, including UPW, WWTP, ZLD, and utility systems.
Develop and review:
Mechanical layouts and equipment arrangement drawings
Piping design, isometrics, and pipe specifications
Equipment selection and prepare data sheets (valves, pumps, air-blowers, tanks, cartridge filters, heat exchangers, filters, skids, etc.)
Material selection and corrosion allowances
Mechanical calculations (pipe sizing, pipe stress, friction losses, equipment sizing, equipment static and dynamic calculations, atmospheric tank calculation, pressurized vessels calculation)
Review equipment design and calculations provided by equipment suppliers and subcontractors
Ensure mechanical designs comply with:
Owner & Contract specifications
Applicable US codes and standards (ASME, ANSI, ASTM, API, AWWA, etc.)
EPC Project Execution
Interface with process, electrical, I&C, and civil disciplines to ensure fully integrated design.
Support vendor technical evaluations, bid reviews, and equipment selection from a mechanical perspective.
Review vendor drawings and data sheets for compliance with specifications
Provide technical input during procurement, fabrication, and FAT activities
Support constructability reviews, installation sequencing, and field engineering activities
Participate in HAZOP, safety, and design reviews
Construction & Commissioning (Startup) Support
Provide mechanical engineering support during construction, including:
Responses to RFIs and evaluation of field changes
Support for redline markups and as-built documentation
Mechanical system walkdowns and punch list resolution
Support system turnover, commissioning, and start-up activities
Technical Leadership
Act as a mechanical technical authority for UPW, WWTP, ZLD, and utility systems
Mentor junior mechanical engineers and review their deliverables
Coordinate with client engineering teams, vendors, and fab operations stakeholders
Cooperate closely with senior engineers for Process and Electrical, I&C and Civil disciplines
Report progress, risks, and technical issues to the Engineering Manager
Quality: Mechanical drawing accuracy, datasheet compliance, specification adherence
Schedule: On-time delivery of mechanical deliverables, review turnaround time
Compliance: Code compliance, regulatory adherence, QMS adherence
Technical Design Performance: First-pass acceptance, rework minimization
Cost & VE: CAPEX accuracy, value engineering opportunities
Constructability: Installation feasibility, fabrication and rework prevention
Collaboration: Cross-discipline coordination, stakeholder satisfaction
Documentation: On-time delivery of complete mechanical documentation
Requirements
Bachelor’s or Master’s degree in Mechanical Engineering
- 10+ years of mechanical engineering experience, preferably within EPC projects
- Water/wastewaterindustry experience strongly preferred
- Strong experience with piping systems, rotating equipment, and mechanical utilities
- Experience supporting construction and commissioning phases
- EPC project execution mindset
- Strong cross-discipline coordination skills
- Clear technical communication with clients, vendors, and construction teams
- Ability to work in fast-paced, schedule-driven environments
- High attention to safety, quality, and regulatory compliance
- Ability to work on-site in Arizona asrequiredduring different project phases