HVAC Process Engineer (Hiring Immediately)

Own end-to-end cleanroom and facility HVAC engineering for new fab builds and major expansions—delivering temperature, humidity, and pressure cascade control that supports ISO‑classified bays/corridors and sub‑fabs. Scope spans AHUs/MAUs/FFUs, VAV/pressurization schemes, return/exhaust strategies (acid/solvent/general), heat recovery/economizers, BAS/BMS integration, and commissioning/TAB from Basis of Design ? P&IDs/sequence ? construction ? turnover. Day‑to‑Day Develop/own load calcs & psychometrics; size coils/fans, outside air, and latent/sensible splits for cleanroom zones and support areas. Define pressure cascades (bay ? chase ? service), leakage allowances, and door/airlock strategies; manage differential pressure alarm setpoints and recovery sequences. Create PFDs/P&IDs, control narratives, and sequences of operation for AHUs/MAUs/FFUs/VAVs, reheat, humidification/dehumidification, and emergency modes (EPO, purge, smoke). Coordinate BIM/VDC (Revit/AutoCAD) with Arch/Civ/St...