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Temporary Mechanical Project Manager Jobs in Riverside, CA

HDR

Mechanical Engineer

Irvine, CA · On-site

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 ...

HDR

Mechanical Engineer

Irvine, CA · On-site

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 ...

HDR, Inc.

Mechanical Engineer

Irvine, CA · On-site

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 ...

Unified Mechanical Group

Be Seen First

Commercial HVAC Project Manager

Ontario, CA · On-site

$120K - $140K/yr

The Opportunity We are hiring an experienced Project Manager to own commercial HVAC and mechanical projects from award through closeout. This is a role for someone who wants to build more than a ...

RimePro Inc

Project Manager

Mira Loma, CA

$95K - $125K/yr

We are representing a reputable, employee-owned mechanical contractor seeking an experienced Project Manager with a background in managing HVAC scopes. This role is ideal for someone who has managed ...

RimePro Inc

Project Manager

San Bernardino, CA

$120K - $140K/yr

HVAC Project Manager - Residential & Light Commercial Summary We are representing a fast-growing residential builder and mechanical contractor seeking an experienced HVAC Project Manager to oversee ...

Modigent

Project Manager - HVAC

Placentia, CA · On-site

$120K - $140K/yr

Manage full project lifecycle: planning, scheduling, budgeting, resource allocation, risk management, change orders, and closeout for HVAC/mechanical projects. * Review bid documents, drawings, and ...

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All JobsMechanical Project JobsTemporary Mechanical Project Manager JobsTemporary Mechanical Project Manager Jobs in Riverside, CA

Temporary Mechanical Project Manager information

See Riverside, CA salary details

$49K

$110.3K

$149.7K

How much do temporary mechanical project manager jobs pay per year?

As of Aug 19, 2026, the average yearly pay for temporary mechanical project manager in Riverside, CA is $110,281.00, according to ZipRecruiter salary data. Most workers in this role earn between $94,400.00 and $127,800.00 per year, depending on experience, location, and employer.

What is a temporary mechanical project manager?

A Temporary Mechanical Project Manager is a professional hired on a short-term or contract basis to oversee mechanical engineering projects. Their responsibilities typically include managing project timelines, budgets, and teams, ensuring that all mechanical systems and components are designed, installed, and maintained according to project specifications and safety standards. They often coordinate with clients, engineers, and contractors to deliver projects successfully within the designated timeframe. This role is common in industries such as construction, manufacturing, and energy, where specialized project leadership is needed for specific periods or projects.

What are the key skills and qualifications needed to thrive as a temporary mechanical project manager?

To thrive as a Temporary Mechanical Project Manager, you need experience in mechanical engineering, strong project management abilities, and typically a relevant degree or certification such as PMP. Familiarity with project management software (like MS Project), CAD tools, and budgeting systems is commonly required. Outstanding organizational, leadership, and communication skills help in coordinating teams and managing client expectations. These competencies are essential for delivering projects on time, within scope, and to quality standards, especially within temporary or contract-based assignments.

What are some common challenges faced by temporary mechanical project managers, and how can they be addressed?

Temporary Mechanical Project Managers often face the challenge of quickly adapting to new teams and project scopes within a limited timeframe. They must efficiently assess project requirements, establish clear communication channels, and build rapport with diverse stakeholders. Success in this role often relies on strong organizational skills, the ability to rapidly understand technical specifications, and proactive problem-solving. Staying flexible and leveraging previous project management experience can help ensure smooth project delivery despite time constraints.

What is the difference between Temporary Mechanical Project Manager vs Mechanical Engineer?

AspectTemporary Mechanical Project ManagerMechanical Engineer
CredentialsTypically requires a Bachelor's in Mechanical Engineering, PMP certification preferredBachelor's or Master's in Mechanical Engineering, PE license optional
Work EnvironmentProject sites, construction environments, client meetingsDesign offices, R&D labs, manufacturing facilities
Employer & Industry UsageConstruction firms, engineering consultancies, industrial projectsManufacturers, design firms, research institutions

The Temporary Mechanical Project Manager focuses on overseeing project execution, managing teams, and ensuring deadlines are met, often in construction or industrial settings. Mechanical Engineers primarily design, analyze, and develop mechanical systems. While both roles require engineering credentials, the project manager emphasizes coordination and management, whereas the engineer concentrates on technical design and analysis.

What cities near Riverside, CA are hiring for Temporary Mechanical Project Manager jobs?

Cities near Riverside, CA with the most Temporary Mechanical Project Manager job openings:

Temporary Mechanical Project Manager jobs near you

Mechanical Engineer

HDR

Irvine, CA • On-site

Full-time

Re-posted 28 days ago

HDR rating

9.2

Company rating: 9.2 out of 10

Based on 59 frontline employees who took The Breakroom Quiz

32nd of 449 rated engineering

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

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.

What HDR employees say

Pay

Benefits

Hours and flexibility

Workplace

Get the full story on Breakroom

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About HDR

Sourced by ZipRecruiter

At HDR, we specialize in engineering, architecture, environmental and construction services. While we are most well-known for adding beauty and structure to communities through high-performance buildings and smart infrastructure, we provide much more than that. We create an unshakable foundation for progress because our multidisciplinary teams also include scientists, economists, builders, analysts and artists.

Industry

Specialized design services

Company size

5,001 - 10,000 Employees

Headquarters location

Omaha, NE, US

Year founded

1917

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