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Mechanical Engineering III

Job in Orange, Orange County, California, 92856, USA
Listing for: AECOM
Full Time position
Listed on 2026-03-03
Job specializations:
  • Engineering
    Engineering Design & Technologists, Civil Engineering, Environmental Engineer
Job Description & How to Apply Below
Company Description

Work with Us. Change the World.

At AECOM, we're delivering a better world. Whether improving your commute, keeping the lights on, providing access to clean water, or transforming skylines, our work helps people and communities thrive. We are the world's trusted infrastructure consulting firm, partnering with clients to solve the world's most complex challenges and build legacies for future generations.

There has never been a better time to be h accelerating infrastructure investment worldwide, our services are in great demand. We invite you to bring your bold ideas and big dreams and become part of a global team of over 50,000 planners, designers, engineers, scientists, digital innovators, program and construction managers and other professionals delivering projects that create a positive and tangible impact around the world.

We're one global team driven by our common purpose to deliver a better world. Join us.

Job Description

AECOM is seeking a Mechanical Engineer III based in Orange, California.

Join our dynamic team supporting exciting projects! Work independently and make technical decisions based on building code interpretation as well as company, client, and industry standard practices. Mentor and teach junior engineers. Grow your career with us in our Building+ Places group.

Job Summary /Responsibilities

* Perform assignments requiring application of standard techniques, procedures and criteria to carry out engineering tasks

* Lead the preparation of deliverables and products such as presentation materials, calculations, drawings, specifications, and reports, ventilating, and air-conditioning (HVAC) for commercial, governmental, and institutional facilities

* Exercise judgment limited to developing details of work in making preliminary selections and adaptations of engineering alternatives

* Prepare engineering related calculations and develop drawings and visual aids

* Lead the mechanical design of heating, ventilation and air conditioning systems for commercial and institutional facilities

* Basic knowledge of industry standard computer software (AutoCAD, Carrier HAP, Trane Trace)

* Work independently as well as guide junior engineers as needed on projects

* Deliver complete, accurate, and coordinated project design assignments within time and budget parameters while satisfying client contractual obligations

* Perform field investigations for incorporation of existing conditions into construction documents

* Work within a project team environment and coordinate work with other project disciplines

* Maintain and organize all project-related documentation

* Plan and organize work that follows a defined process

* Work independently and make technical decisions based on building code interpretation as well as company, client, and industry standard practices.

* Mentor and teach junior engineers

About Buildings + Places

AECOM's Buildings + Places practice includes architecture, interiors, building engineering, workplace strategy, business transformation, asset advisory, economics and development planning, master planning, urban planning, and landscape architecture in a dynamic, interactive, and creative work environment.

With a range of expertise from strategy and design through project realization, we create better outcomes to grow economies, protect natural systems, conserve natural resources, make societies more equitable and connect and engage people through innovative, sustainable design solutions.

Our teams have worked on signature projects such as the London 2012 Olympic Park and Legacy Framework, to the new plan for the LA2028 Olympics, to industrial facilities for GE and Rolls-Royce, to headquarters and workplaces for NASA, Unilever, Sony Music, Direc

TV, Box, Inc. and many Fortune 500 companies.

Qualifications

Minimum Requirements

* Bachelor's degree plus four years of related experience or demonstrated equivalency of experience and/or education

Preferred Qualifications

* Knowledge of Revit, at least 4 years of experience

* Licensed Professional Engineer Licensed - Mechanical

* Extensive understanding of HVAC engineering fundamentals including load calculations, conceptual systems…
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