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Senior Mechanical Engineer

Orange, CA, us💼 Full-time🗓 2026-10-01 → 2026-10-04

Core

Design of HVAC and plumbing systems for federal, commercial, and institutional facilities, including construction administration and site evaluations.

Role type

Senior IC mechanical engineer (HVAC/Plumbing)

Builds

Heating, ventilation, air conditioning, and plumbing systems for large-scale projects

Domain

Construction engineering / Building services (via careerplan.io/jobs/744000153004409-senior-mechanical-engineer-at-aecom)

Required skills

HVAC system design, plumbing system design, building code interpretation, construction administration, shop drawing review, RFI management, change order review, site/field visits, project planning, budget management, proposal preparation, mentoring, specification review, multi-discipline collaboration, AutoCAD, Revit, building load calculation, energy modeling, Design-Build delivery practices, instrumentation and controls design

Preferred skills

Professional Engineer (PE) licensure, LEED AP, CxA, CEM certifications, cost estimating, healthcare data center experience, mission critical facility experience, higher education facility experience, corporate commercial experience, mixed-use experience, science and technology lab experience, NAVFAC/USACE/VAMC/DOD/USAF experience

Technologies

AutoCAD, Revit

Responsibilities

Design HVAC and plumbing systems for large projects; perform construction administration services including review of shop drawings, RFIs, and change orders; evaluate alternative design approaches; conduct site/field visits to ascertain existing conditions; organize and plan projects to ensure quality controls and budget compliance; assist in preparing proposals and presenting to clients; mentor junior staff; review and edit specifications; serve as lead engineer on mid-to-large size projects.

Seniority

Senior, hands-on IC with mentorship responsibilities