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General Contractor Assistant Jobs in Riverside, CA

isec

Project Engineer I - Rancho

Rancho Cucamonga, CA

$70.50K - $90.40K/yr

Coordinate communications and correspondences from owners, general contractors, and subcontractors ... * Assist in resolution of conflicts with clients and customers. * Record all applicable ...

isec

Project Engineer I - Rancho

Rancho Cucamonga, CA

$70.50K - $90.40K/yr

Coordinate communications and correspondences from owners, general contractors, and subcontractors ... * Assist in resolution of conflicts with clients and customers. * Record all applicable ...

Hensel Phelps Construction

Project Engineer

Irvine, CA

$26.40K/mo

Ranked #1 in aviation and #6 overall general contractor in 2024 by BD+C, Hensel Phelps is one of ... Essential Duties: * Assist the project manager and superintendents as follows: * Accumulate all ...

Hensel Phelps

Project Engineer

Irvine, CA · On-site

$84.36K - $93.24K/yr

Ranked #1 in aviation and #6 overall general contractor in 2024 by BD+C, Hensel Phelps is one of ... Essential Duties: * Assist the project manager and superintendents as follows: * Accumulate all ...

RimePro Inc

HVAC Project Manager

Irvine, CA

$110K - $150K/yr

Support design-build and design-assist efforts, providing input on system design, cost, and ... Background working for a mechanical contractor or general contractor with strong MEP experience.

RimePro Inc

Mechanical Estimator - HVAC

Norco, CA

... outcomes. * Assist in preparing bid proposals, budgets, and scope summaries. * Support ... Experience working for a mechanical contractor or general contractor. * Strong understanding of HVA ...

Robert Half

Staff Accountant

Riverside, CA · On-site

$35 - $42/hr

... Assist with purchase order follow-up and review commitments and PO-related documentation within ... general contractor environment. • Proficiency with Sage 300, Sage Paperless, and Procore or ...

isec

Senior Project Engineer

Rancho Cucamonga, CA

$101.20K - $131.80K/yr

Coordinate communications and correspondences from owners, general contractors, and subcontractors ... * Assist in resolution of conflicts with clients and customers. * Record all applicable ...

isec

Senior Project Engineer

Rancho Cucamonga, CA

$101.20K - $131.80K/yr

Coordinate communications and correspondences from owners, general contractors, and subcontractors ... * Assist in resolution of conflicts with clients and customers. * Record all applicable ...

ISEC, Inc.

Senior Project Engineer

Rancho Cucamonga, CA · On-site

$81.86K - $105.08K/yr

Coordinate communications and correspondences from owners, general contractors, and subcontractors ... * Assist in resolution of conflicts with clients and customers. * Record all applicable ...

Greens Operations Inc

PROJECT FOREMAN

Irvine, CA · On-site

$22.50 - $30/hr

GP Builders is a commercial general contractor that specializes in ground up and renovations of premier hotel brands (Hilton, Marriott, Hyatt, etc.). We are looking for a foreman to assist on a hotel ...

Hensel Phelps

Senior Marketing Coordinator

Irvine, CA · On-site

$70.68K - $78.12K/yr

Ranked #1 in aviation and #6 overall general contractor in 2024 by BD+C, Hensel Phelps is one of ... Utilize AI tools to assist in generating draft language for review. Planning & Strategy * Research ...

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General Contractor Assistant information

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$10

$17

$23

How much do general contractor assistant jobs pay per hour?

As of May 31, 2026, the average hourly pay for general contractor assistant in Riverside, CA is $17.88, according to ZipRecruiter salary data. Most workers in this role earn between $15.04 and $21.10 per hour, depending on experience, location, and employer.

What Does a General Contractor Assistant Do?

As a general contractor assistant, you assist construction teams on a building site and in an office. Your responsibilities include tasks like preparing and securing equipment, maintaining clean and safe work areas, and collaborating with teams of workers to complete each project. You use power and hand tools, direct subcontractors and temporary staff on daily duties, inventory materials, and collaborate with team members to complete tasks. Duties also include attending meetings and taking notes as necessary, communicating with teams of architects, engineers, subcontractors, and other team members, and following guidelines to ensure each structure is safe and meets code requirements.

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

To thrive as a General Contractor Assistant, you need a basic understanding of construction processes, project documentation, and safety protocols, often supported by a high school diploma or relevant trade certifications. Familiarity with project management software, scheduling tools, and construction site equipment is typically required. Strong organizational skills, attention to detail, and effective communication make someone stand out in this position. These skills are crucial for supporting project efficiency, ensuring safety compliance, and facilitating smooth coordination between teams and subcontractors.

What are some typical challenges faced by a General Contractor Assistant, and how can they be managed?

General Contractor Assistants often face challenges such as juggling multiple tasks on tight deadlines, coordinating with various subcontractors, and adapting quickly to changes on the job site. Effective time management, clear communication, and a proactive approach to problem-solving are essential for success in this role. Building strong relationships with team members and staying organized can help manage these challenges and contribute to smooth project execution.

What are General Contractor Assistants?

General Contractor Assistants support general contractors in managing construction projects by performing administrative, organizational, and hands-on tasks. Their duties often include coordinating schedules, communicating with subcontractors and suppliers, maintaining project documentation, and ensuring that safety regulations are followed on-site. They help keep projects running smoothly by assisting with project planning, budget tracking, and addressing any logistical needs that arise. This role is vital for efficient project execution and helps ensure construction projects are completed on time and within budget.

What is the difference between General Contractor Assistant vs Construction Coordinator?

AspectGeneral Contractor AssistantConstruction Coordinator
CredentialsHigh school diploma, some experience in constructionHigh school diploma, often some project management knowledge
Work EnvironmentConstruction sites, officesConstruction sites, project offices
Employer & Industry UsageConstruction companies, general contractorsConstruction firms, project management teams
Common Search & ComparisonYesYes

The main difference is that a General Contractor Assistant supports the general contractor with daily tasks, scheduling, and coordination, often focusing on site assistance. A Construction Coordinator typically handles project planning, communication, and documentation, often with more emphasis on administrative and organizational duties. Both roles are essential in construction projects but differ in scope and responsibilities.

More about General Contractor Assistant jobs
What are popular job titles related to General Contractor Assistant jobs in Riverside, CA? For General Contractor Assistant jobs in Riverside, CA, the most frequently searched job titles are:
What job categories do people searching General Contractor Assistant jobs in Riverside, CA look for? The top searched job categories for General Contractor Assistant jobs in Riverside, CA are:
What cities near Riverside, CA are hiring for General Contractor Assistant jobs? Cities near Riverside, CA with the most General Contractor Assistant job openings:
General Contractor Assistant jobs near you
Project Engineer I - Rancho

Project Engineer I - Rancho

ISEC, Inc.

Rancho Cucamonga, CA • On-site

$72.05K - $92.87K/yr

Full-time

Posted 9 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
  • Demonstrates commitment to deliver outstanding service - 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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