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Project Assistant Jobs in Riverside, CA (NOW HIRING)

isec

Project Engineer I - Rancho

Rancho Cucamonga, CA · On-site

$70K - $90K/yr

Duties and Responsibilities * Assist in the development, preparation, and finalization of project schedule. * Responsible for procuring and submitting all project submittal information as well as ...

isec

Project Engineer I - Rancho

Rancho Cucamonga, CA

$70K - $90K/yr

Duties and Responsibilities * Assist in the development, preparation, and finalization of project schedule. * Responsible for procuring and submitting all project submittal information as well as ...

Stantec

Community Development - Project Manager

Irvine, CA · On-site

$126K - $189K/yr

Review and approve all invoices and change orders associated with the project. * Assist in developing new work opportunities and building client relationships. Your Capabilities * Understanding of ...

Ware Malcomb

Job Captain, Architecture

Irvine, CA

$70K - $85K/yr

Preparation of design and construction documents * Assist the Project Manager or Architect with construction services (site visits, review shop drawings, etc.) * Perform project code searches and ...

trimarkusa

Project Coordinator

Irvine, CA

Participate in project status meetings, providing detailed updates on assigned projects. * Assist in resolving operational problems and identifying opportunities for process improvement. * Provide ...

trimarkusa

Project Coordinator

Irvine, CA · On-site

Participate in project status meetings, providing detailed updates on assigned projects. * Assist in resolving operational problems and identifying opportunities for process improvement. * Provide ...

trimarkusa

Project Coordinator

Irvine, CA

Participate in project status meetings, providing detailed updates on assigned projects. * Assist in resolving operational problems and identifying opportunities for process improvement. * Provide ...

trimarkusa

Project Coordinator

Irvine, CA · On-site

Participate in project status meetings, providing detailed updates on assigned projects. * Assist in resolving operational problems and identifying opportunities for process improvement. * Provide ...

trimarkusa

Project Coordinator

Irvine, CA

Participate in project status meetings, providing detailed updates on assigned projects. * Assist in resolving operational problems and identifying opportunities for process improvement. * Provide ...

trimarkusa

Project Coordinator

Irvine, CA

Participate in project status meetings, providing detailed updates on assigned projects. * Assist in resolving operational problems and identifying opportunities for process improvement. * Provide ...

W.E. O'Neil Construction

Field Engineer

Irvine, CA

Technical Skills * Assist the Senior Project Superintendent, Project Superintendent, Assistant Project Superintendent or other assigned supervisor(s) with the initial preparation and maintenance of ...

W.E. O'Neil Construction

Field Engineer

Irvine, CA · On-site

Technical Skills * Assist the Senior Project Superintendent, Project Superintendent, Assistant Project Superintendent or other assigned supervisor(s) with the initial preparation and maintenance of ...

Align Builders Inc

Project Coordinator

Irvine, CA · Remote

$65K - $85K/yr

Support jobsite compliance and safety documentation. * Assist with project startup and closeout ... documentation to ensure all administrative requirements are met. Compliance & Recordkeeping

RimePro Inc

Assistant Project Manager

Tustin, CA

$80K - $115K/yr

Key Responsibilities * Assist in managing projects from preconstruction through closeout on K-12, DSA, or Public Works assignments * Support project managers in coordinating all construction phases ...

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Project Assistant information

See Riverside, CA salary details

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How much do project assistant jobs pay per hour?

As of Jun 10, 2026, the average hourly pay for project assistant in Riverside, CA is $22.48, according to ZipRecruiter salary data. Most workers in this role earn between $18.08 and $25.34 per hour, depending on experience, location, and employer.

How does a Project Assistant typically collaborate with project managers and other team members?

Project Assistants play a crucial role in supporting project managers by organizing schedules, preparing documentation, and facilitating communication among team members. They often attend meetings to take notes, track action items, and ensure deadlines are met. Regular collaboration with various departments is common, as Project Assistants help coordinate resources, gather updates, and address any logistical challenges that arise. This role is ideal for individuals who enjoy multitasking and thrive in a dynamic, team-oriented environment.

What are Project Assistants?

Project Assistants are professionals who provide administrative and operational support to project managers and teams. They help coordinate project activities, manage documentation, schedule meetings, and ensure tasks are completed on time. Project Assistants often handle communication between team members, track project progress, and assist with reporting. Their role is essential for keeping projects organized and running smoothly.

What are the key skills and qualifications needed to thrive as a Project Assistant, and why are they important?

To thrive as a Project Assistant, you need strong organizational skills, attention to detail, and a foundational understanding of project management principles, often supported by a relevant degree or coursework. Familiarity with project management software like Microsoft Project, Asana, or Trello, and proficiency in MS Office Suite are typically expected. Excellent communication, teamwork, and time management skills help you support project managers and coordinate among stakeholders effectively. These skills ensure projects run smoothly, deadlines are met, and teams stay aligned on objectives.

What Is a Project Assistant?

A project assistant provides support to the project team and helps make sure projects get done on time and budget. They answer to the project manager or project administrator or a company director. Job duties include handling communication with everyone on the project team, creating and filing documentation, preparing reports, and serving as a liaison between management and the project team. Other responsibilities may include setting up office equipment—such as computers, printers, and webcams for online conference calls, scheduling meetings and check-ins, and managing the project calendar.

What is the difference between Project Assistant vs Administrative Assistant?

AspectProject AssistantAdministrative Assistant
Required CredentialsHigh school diploma; some roles may prefer associate's degree or relevant certificationsHigh school diploma; often no specific certifications required
Work EnvironmentProject sites, offices, collaborative team settingsOffice settings, administrative departments
Employer & Industry UsageConstruction, IT, consulting, engineeringCorporate offices, government agencies, nonprofits
Common Search & ComparisonOften compared for support roles in projectsCompared for general office support roles

The Project Assistant and Administrative Assistant roles share similarities in supporting organizational functions, but Project Assistants focus more on supporting specific projects, often requiring knowledge of project management processes. Administrative Assistants handle broader administrative tasks across departments. Both roles are essential in various industries, but their focus and work environments differ slightly.

More about Project Assistant jobs
What are the most commonly searched types of Project jobs in Riverside, CA? The most popular types of Project jobs in Riverside, CA are:
What are popular job titles related to Project Assistant jobs in Riverside, CA? For Project Assistant jobs in Riverside, CA, the most frequently searched job titles are:
What job categories do people searching Project Assistant jobs in Riverside, CA look for? The top searched job categories for Project Assistant jobs in Riverside, CA are:
What cities near Riverside, CA are hiring for Project Assistant jobs? Cities near Riverside, CA with the most Project Assistant job openings:
Project Assistant jobs near you
Infographic showing various Project Assistant job openings in Riverside, CA as of June 2026, with employment types broken down into 1% As Needed, 88% Full Time, 8% Part Time, and 3% Contract. Highlights an 98% Physical, 1% Hybrid, and 1% Remote job distribution, with an average salary of $46,753 per year, or $22.5 per hour.
Project Engineer I - Rancho

Project Engineer I - Rancho

isec

Rancho Cucamonga, CA • On-site

$70K - $90K/yr

Other

Posted 19 days ago

Job description

Reports to: Operations Manager/Project Manager 
FLSA Status: Exempt  

Position Summary
The Project Engineer is responsible for assisting the Project Manager with administrative duties associated with the project, material releases, vendor follow-up, coding invoices for A/P, routine correspondence, field dimensioning, change orders, submittals and labor and delivery schedules.  

Duties and Responsibilities

  • Assist in the development, preparation, and finalization of project schedule.
  • Responsible for procuring and submitting all project submittal information as well as managing the approval process.
  • Responsible for assisting with the administration of the subcontract requirements, contract documents, and change orders.
  • Coordinate communications and correspondences from owners, general contractors, and subcontractors.
  • Ensure project quality control procedures are followed during construction process, in accordance with the contract documents and ISEC policies and procedures.
  • Responsible for job closeout being performed in a proper and efficient manner, while keeping the Project Manager informed.
  • Assist in resolution of conflicts with clients and customers.
  • Record all applicable information in Project Control/Document Control System with target dates for completion of tasks.
  • Review Job Costs with Project Manager.
  • Manage shop drawings through project specification, general contractor review, and final installation to the field. Follow up with internal and external customers on shop drawing changes and schedule changes or delays.
  • Release material in a timely manner and coordinate deliveries.
  • Visits jobsites as needed; understands jobsite environment and reviews jobsite progress
  • Maintain a Shortage and Breakage Log and reorder material as necessary.
  • Prepare operation and maintenance manuals, guarantees and submit in accordance with specification requirements on each project.
  • Assist Project Manager in preparing monthly billings, cost projection and weekly logs

Safety Responsibilities
Manage and implement ISEC Safety requirements: 

  • Promote a positive atmosphere for safety excellence committed to the Safety Promise.
  • Coach employees who need improvement and assign work to only those employees trained and qualified to perform the task.
  • Ensure all recognized safety deficiencies are promptly corrected.
  • Report all injuries and incidents to Managers and Safety Department.
  • Planning and coordinating deliveries to the job following safe and best practices.

Other Duties
Please note that this job description is not designed to cover or contain a comprehensive listing or activities, duties or responsibilities that are required of the employee for this job.  Duties, responsibilities and activities may change at any time with or without notice. 

Preferred Qualifications (in addition to minimum qualifications)

Education/Experience 

  • Bachelor’s degree in a related field  

Minimum Qualifications

Education/Experience 

  • 0 – 3 years of experience  

Knowledge, Skills and Abilities 

  • Basic knowledge of ISEC products, services, processes and projects
  • Understands project plans and specifications
  • Works autonomously at times
  • Seeks guidance for unusual or complex problems and supervisor approval for changes in standards
  • Engages in company culture
  • Open to feedback and flexible to change
  • Proficient in MS Office Suite
  • Efficient written and verbal communication skills
  • Strong prioritization and organizational skills, detail-oriented

Customer Service Skills

  • Demonstratescommitment to deliver outstandingservice– both with internal and external customers 
  • Takes ownership to personally resolve customer problems (or find someone who can) 
  • Listens well, asks clarifying questions, and checks for agreement with customers 
  • Committed to following-up with customers in all instances in a timely manner 
  • Strong sense of accountability - ensures that you will do what you say that you are going to do 
  • Creates a personal connection with customers – smiles, warm greetings, acts friendly and respectful 
  • Positive attitude 

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