Industrial Mechanical Engineer

AECOM•North Charleston, SC

11d•$135,000 - $165,000•Hybrid

About The Position

AECOM is seeking a Senior Industrial Mechanical Engineer with experience with chem gas to lead the design of specialty gas, bulk gas and chemical distribution systems for our Advanced Manufacturing practice. You will be the technical authority on hazardous production materials and ultra-high-purity (UHP) systems, working directly with client facilities, EHS and tool teams from concept through turnover. Business sectors: semiconductor, battery, energy and nuclear fuel, and defense and aerospace.

Requirements

Bachelor's degree in Mechanical or Chemical Engineering, or related field and 6 years of experience designing specialty gas or chemical distribution systems for semiconductor, battery, pharmaceutical or similar high-purity facilities or demonstrated equivalency of experience and/or education.
Working knowledge of NFPA 55, NFPA 400, ASME B31.3, IFC hazardous materials provisions and CGA standards.
PE license, or ability to obtain PE within 24 months.
Proficiency in Revit and/or AutoCAD Plant 3D and P&ID development.
United States citizenship is required.

Nice To Haves

8+ years of experience, including 5+ years designing specialty gas or chemical distribution systems for semiconductor, battery, pharmaceutical or similar high-purity facilities.
Semiconductor fab or tool-install experience; familiarity with SEMI S2, S6 and F-series standards and NFPA 318.
Hydrogen systems, battery (electrolyte, NMP recovery) or NRC/DOE-regulated fuel-cycle facility experience.
Background with an EPC, tool-install contractor or industrial gas supplier.
Steam, heat-transfer fluid or process chemical system design.
U.S. citizenship and ability to obtain a security clearance (required for Federal and defense projects).

Responsibilities

Design bulk and specialty gas systems (N₂, O₂, Ar, H₂, He, CDA; silane, NH₃, NF₃, HF, Cl₂, WF₆), including gas cabinets, VMBs/VMPs, purifiers and point-of-use connections.
Design bulk chemical distribution for acids, bases, solvents, CMP slurry and battery electrolyte: dispense units, day tanks, reclaim and double-contained piping with leak detection.
Specify UHP materials and quality: EP 316L stainless, PFA/PVDF, orbital welding, cleanliness, and particle, moisture and O₂ certification testing.
Lead code and life-safety strategy: IBC/IFC Group H occupancy, MAQ and control-area analysis, HPM rooms, and HMIS/HMMP documentation.
Coordinate toxic gas monitoring, emergency shutdown and exhaust abatement with HVAC, fire protection and controls.
Develop P&IDs, utility matrices, tool hookup and point-of-connection (POC) design, and hydraulic and pressure-drop calculations.
Support construction: submittals, RFIs, pressure and leak testing, commissioning and turnover.
Serve as client-facing technical lead in workshops and pursuits; mentor plumbing and mechanical engineers to extend AECOM’s process-system capability.