Mechanical Engineer

HDR, Inc.; Irvine (CA); On-site; USD 90,000 - 120,000; Full time

Benefits offered by this job

Employee-owned culture

Job summary

HDR, Inc. in Irvine, CA is seeking a Mechanical Engineer to lead design of mechanical and plumbing systems for commercial and institutional facilities. This role focuses on coordinating a project team, ensuring code compliance, and delivering high-quality, sustainable solutions.

You will work within HDR’s employee-owned culture, collaborating across disciplines to advance innovative building performance and energy efficiency on complex projects.

Qualifications

• Bachelor's degree in Mechanical Engineering required.
• PE license or ability to obtain licensure within location required.
• Experience design mechanical systems for commercial or institutional facilities.

Responsibilities

• Coordinate the work of the mechanical design team through design and contract document phases.
• Coordinate with agencies for code compliance.
• Review documents for conflicts with other disciplines and ensure timely delivery.
• Write and edit mechanical specifications; select equipment and systems.
• Support construction contract administration and QA/QC activities.

Skills

Mechanical design

Project coordination

Office software

Education

Bachelor's degree in Mechanical Engineering

Tools

Trane TRACE

MS Office

Job description

At HDR, our employee-owners are fully engaged in creating a welcoming environment where each of us is valued and respected, a place where everyone is empowered to bring their authentic selves and novel ideas to work every day. As we foster a culture of inclusion throughout our company and within our communities, we constantly ask ourselves: What is our impact on the world?

Watch Our Story: ' https://www.hdrinc.com/our-story'

Each and every role throughout our organization makes a difference in our ability to change the world for the better. Read further to learn how you could help make great things possible not only in your community, but around the world.

We believe building engineering is more than systems and structures, it’s about powering progress and enabling innovation. As part of HDR’s Building Engineering Services Group, you’ll help design the critical infrastructure that supports the digital age and shapes the spaces where people work, connect, and thrive. From high-performance data centers driving the future of AI to dynamic commercial environments, your work will directly support technological advancement, sustainability, and human experience. We bring together mechanical, electrical, structural, and civil engineering experts to solve complex design challenges with precision, creativity, and collaboration. Whether you're optimizing energy efficiency, integrating resilient systems, or engineering the backbone of next-generation facilities, your contributions will help define the future of the built environment. This isn’t just a job, it’s a chance to lead innovation, engineer impact, and build a legacy of excellence.

In the role of Mechanical Engineer, we'll count on you to:

• Coordinate the work of the mechanical design team through the schematic design development and contract document phase of a project
• Establish meetings and participate in reviews with various governing agencies for code compliance
• Coordinate workload to complete the document on schedule
• Conduct work sessions at the project site in conjunction with the Project Manager and other disciplines
• Review mechanical documents for areas of conflict with all disciplines
• Write and edit mechanical specifications, selects equipment, mechanical systems and devices
• Coordinate with and assist affected disciplines with addenda, RFIs, CPRs and change orders, and take responsibility to incorporate agreed-upon changes into the project documents
• Provide construction contract administration as needed
• Conduct QA/QC on the work of other Mechanical Project Engineers, Mechanical Project Coordinators or Mechanical CAD Technicians as needed
• Perform other duties as needed

Preferred Qualifications

• Master's degree in Architectural Engineering with Mechanical emphasis
• Healthcare, Science and Technology and/or Civic facilities experience
• Experience and/or interest in sustainable design/LEED desired but not required
• A minimum of 6 years experience in mechanical and plumbing system design of commercial or institutional buildings

Required Qualifications

• Bachelor's degree in Mechanical Engineering
• Previous experience in mechanical system design of commercial or institutional buildings

Requires professional engineering license recognized by the licensing board for the location of the position offered. Example: Professional Engineer (PE or P.Eng) license.

• Experience in commercial or institutional facilities
• Computer experience using MS Office, Trane TRACE or similar software, manufacturer selection software
• Previous experience with an architectural/engineering or engineering consulting firm
• An attitude and commitment to being an active participant of our employee-owned culture is a must

BusinessClass : Building Mechanical

What We Believe

HDR is our company. Together, we build on each other's life experiences and perspectives to make great things possible every day. This shapes our collaborative culture, encourages organizational trust and connects us closer to the clients and communities we serve.

Our Commitment

As employee owners, we all have a role in creating an inclusive environment where each of us is welcomed, valued, respected and empowered to bring our authentic selves to work every day.

Our eight Employee Network Groups (Asian Pacific, Black, Hispanic/Latino(a), LGBTQ+, People with Disabilities, Veterans, Women, Young Professionals) help create a sense of belonging and foster a supportive environment where everyone is empowered to engage and contribute. Each group has an executive sponsor and is open to all employees.

Primary Location

United States-California-Irvine

Schedule

Full-time

Employee Status

Regular

Job Posting

May 22, 2026

At HDR, we are committed to the principles of employment equity.

We are an Affi...

We consider all qualified applicants, regardless of criminal histories, arrest and conviction records.

We design solutions to the world's greatest challenges. We'realways looking for great talent to join our global teams.