Project Assistant jobs in Ontario, CA

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Assistant Project Manager, Engineering

Clark Pacific
Ontario

The Assistant Project Manager facilitates the successful design, fabrication, and installation of architectural and structural building systems. Working as part of an integrated team, within a specific business unit, this role applies engineering, project management, problem-solving, and communication skills across all levels and disciplines within the organization. The Assistant Project Manager...

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2 days ago

Project Engineer / Assistant Project Manager

Davron
Ontario

Join a fast-growing and dynamic construction solutions company in Ontario, CA as a Project Engineer / Assistant Project Manager! This is a unique opportunity to step into a key role at a company experiencing aggressive expansion, with real potential for future equity and career advancement. Specializing in high-quality commercial and public works projects, this company is building its executive...

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2 days ago

Assistant Project Manager

A.R. Mays Construction
Rancho Cucamonga 91737

Job Description Job Description Job Summary: The Assistant Project Manager is responsible for performing the assigned administrative duties of the project, as well as maintaining the project organization and flow; performing this work on time, at the highest practical standard of quality, at the lowest possible cost, and in a manner which will enhance our clients’ and A.R. Mays’...

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7 hours ago
Hybrid

Project Management Assistant (Hybrid)

PM2CM
Pomona 91768

Project Managers Assistant spend the majority of time managing, coordinating and/or supporting activities related to the execution of major company projects. Project Managers accomplish work through matrixed employees/teams/vendors who are not direct reports but for whom the incumbent has direct accountability to lead and achieve project objectives. Project Managers lead a project from start to...

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2 days ago

Assistant Project Manager

Certerra
Rancho Cucamonga 91730

Job Description Job Description COMPANY OVERVIEW: CERTERRA (formerly RMA Companies) is a growing national provider of testing, inspection, and certification services that support innovation in new product development, quality assurance, for project delivery, and engineered solutions for asset management. We are passionate about contributing to the sustainable development of the communities we...

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7 hours ago

Estimating Assistant/ Project Coordinator

Golden State Boring and Pipe Jacking Inc.
Chino

Job Description Job Description ESTIMATING ASSISTANT/JR. PROJECT COORDINATOR Compensation $20 to $35 Hourly Benefits Offered Dental, Life, Medical, Vision Employment Type Full-Time Why Work Here? “Most weekends off, opportunities for growth with well established firm..” ESTIMATING ASSISTANT/JR. PROJECT COORDINATOR Golden State Boring and Pipe Jacking Inc., a well-established...

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6 hours ago
No Experience

Project Engineer Intern - 2026 Summer

Granite Construction Incorporated
Ontario 91764

This position is responsible for assisting construction engineering operations to ensure construction work complies with all engineering standards. Essential Job Accountabilities. Interpret design/drawings for takeoff and workforce for bidding and bu Project Engineer, Intern, Engineer, Technical Support, Summer, Construction, Business Services

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2 days ago

Project Manager - Highway/Roadway - 8+ Years of Experience

Aecom
Ontario 91761

Company DescriptionWork 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...

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a day ago

Senior Traffic Project Engineer

HNTB
Ontario 91758

What We're Looking ForJoin our growing Southern California Transportation Team! We are growing our offices in Orange County (Santa Ana) and in the Inland Empire (Ontario). We are supporting high profile transportation projects in the Inland Empire and Orange County such as Brightline West (high speed rail), I -10 Freeway corridor in San Bernardino, various LA Metro and Caltrans Highway projects!...

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a day ago
No Experience Hybrid

Transportation Project Engineer (PE)

Mark Thomas
Ontario 91764

Job Title Transportation Project Engineer (PE) Location Inland Empire - Ontario, CA 91764 US (Primary) Category Engineering: Transportation Salary Grade $93,600.00 - $150,904.00 Full Time/Part Time Full-time Posting Details Mark Thomas is growing and is adding licensed Roadway Project Engineers to our transportation teams! The role of a licensed Project Engineer is to take the lead in...

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16 hours ago

Project Engineer - Drainage

HNTB Corporation
Ontario 91761

What We're Looking ForAt HNTB, you can create a career that is meaningful to you while building communities that matter to all of us. For more than a century, we have been delivering solutions for some of the largest, most complex infrastructure projects across the country. With our historic growth, it is an exciting time to join our team of employee-owners.This opportunity entails being...

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16 hours ago
No Experience

Project Engineer Intern - 2026 Summer

Granite Construction Inc
Ontario 91761

Building a career at Granite may be the most valuable thing you could do...Find your dream job today, and be part of something great. Our most powerful partnership is the one we have with our employees. Our people are our most valued asset and the foundation of Granite's century-old success. We're building more than infrastructure; we are building your future.General SummaryThis position is...

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3 days ago

Station Project Manager

ACCIONA S.A.
Ontario 91761

ACCIONA is a global company, leading in the development of regenerative infrastructure that creates a positive impact on society. Our workforce consists of more than 65,000 professionals, present in more than 40 countries across the five continents, all contributing in our mission to design a better planet. Are you a passionate individual who wants to make a difference, promote sustainable...

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a day ago

Senior Civil Engineer/Project Manager - Public Works

Huitt-Zollars
Ontario 91764

DescriptionSenior Civil Engineer/Project Manager - Public WorksRole Description: Huitt-Zollars, Inc has full-time opportunity for a Civil Engineer (Eng IV) with five + years of experience and will be a registered Professional Engineer for our Ontario, California office. This role will work on Civil Engineer to work in our Public Work Practice Area. This position will provide leadership, guide...

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3 days ago
Remote

Project Manager

HMC Architects
Ontario 91764

Job Description Job Description Who We Are HMC Architects is an employee-owned design firm with an inherent desire to make a difference in our communities. As a purpose-driven brand based on values, our mission to design for good drives everything we do. And our ownership culture creates alignment and increased commitment to that mission, keeping us on track to being successful. What We...

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7 hours ago
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Project Engineer

MRINetwork Jobs
Ontario 91764

Job Description Job Description Project Engineer – Automotive - Stamping and Assembly ???? Location: Sothern California. | ???? $100K – $130K Join a Growing Automotive & Consumer Products Manufacturer! Full benefits, 401k match, PTO, relocation assistance & more! We’re looking for a Technical Process / Project Engineer with a deep knowledge of Quality Principles in the TS16949 Automotive...

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7 hours ago

Project Engineer

Condon-Johnson & Associates
Ontario 91758

Job Description Job Description PROJECT ENGINEER: In this position, you will have the opportunity to learn the fundamentals of construction project management and the technical details of ground improvement, shoring, and foundation drilling while assisting in job site management. Activities include preliminary design, estimating, layout, data acquisition, scheduling, and quality control. If...

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7 hours ago

Senior Project Manager

DOMINGUEZ GENERAL ENGINEERING, INC
Ontario 91764

The ideal candidate will be responsible for assisting the project manager and project team with project documentation and control, job cost accounting, scheduling, and construction supervision efforts. In order to be successful, this candidate should feel comfortable taking on many tasks that require various skills, and appropriately prioritizing those tasks' completion. Responsibilities -...

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4 days ago

Project Surveyor II (PLS)

Mark Thomas
Ontario 91764

Job Title Project Surveyor II (PLS) Location Inland Empire - Ontario, CA 91764 US (Primary) Category Survey and Mapping Salary Grade $116,000.00 - $150,009.60 Full Time/Part Time Full-time Posting Details Mark Thomas is hiring a Project Surveyor II to join our team! The role of a Project Surveyor II is to perform their assigned duties with greater independence and proficiency with less...

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4 days ago
Hybrid

Transportation Sr. Project Engineer (PE)

Mark Thomas
Ontario 91764

Job Title Transportation Sr. Project Engineer (PE) Location Inland Empire - Ontario, CA 91764 US (Primary) Irvine - Irvine, CA 92606 US Category Engineering: Transportation Salary Grade $112,320.00 - $169,977.60 Full Time/Part Time Full-time Posting Details Mark Thomas is hiring Senior Project Engineers (PE) for our transportation team! The ideal senior roadway candidate will have...

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a day ago
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