1

General Contractor Assistant Jobs in California (NOW HIRING)

This role is best suited to someone who has come through a true General Contractor background, has ... Managing Superintendents, Assistant Superintendents, field teams, and trade partners * Driving site ...

New

Assistant Project Manager

Irvine, CA · On-site

$75K - $105K/yr

This is an excellent opportunity for someone coming from a general contractor who wants to ... Review project costs and assist with risk assessments * Support multiple projects simultaneously

Assistant Project Manager

Newport Beach, CA · On-site

$75K - $105K/yr

This is an excellent opportunity for someone coming from a general contractor who wants to ... Review project costs and assist with risk assessments * Support multiple projects simultaneously

About the Company Our client is a well-established general contractor with over four decades of ... About the Role The Project Assistant is an office-based position located in the Citrus Heights, CA ...

About the Company Our client is a well-established general contractor with over four decades of ... About the Role The Project Assistant is an office-based position located in the Citrus Heights, CA ...

About the Company Our client is a well-established general contractor with over four decades of ... About the Role The Project Assistant is an office-based position located in the Citrus Heights, CA ...

next page

Showing results 1-20

General Contractor Assistant information

See California salary details

$10

$17

$23

How much do general contractor assistant jobs pay per hour?

As of Aug 6, 2026, the average hourly pay for general contractor assistant in California is $17.35, according to ZipRecruiter salary data. Most workers in this role earn between $14.59 and $20.48 per hour, depending on experience, location, and employer.

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 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.

What is a general contractor assistant?

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 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 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 most commonly searched types of General Contractor jobs in California? The most popular types of General Contractor jobs in California are:
What are popular job titles related to General Contractor Assistant jobs in California? For General Contractor Assistant jobs in California, the most frequently searched job titles are:
What job categories do people searching General Contractor Assistant jobs in California look for? The top searched job categories for General Contractor Assistant jobs in California are:
What cities in California are hiring for General Contractor Assistant jobs? Cities in California with the most General Contractor Assistant job openings:
Infographic showing various General Contractor Assistant job openings in California as of August 2026, with employment types broken down into 1% As Needed, 81% Full Time, 15% Part Time, 1% Temporary, and 2% Contract. Highlights an 97% Physical, 1% Hybrid, and 2% Remote job distribution, with an average salary of $36,089 per year, or $17.4 per hour.

General Contractor Estimator and Preconstruction Project Manager

Public Works General Contractor

Windsor, CA • On-site

$110K - $150K/yr

Full-time

Medical, Dental, Vision, Retirement, PTO

Re-posted 26 days ago

Be Seen First

After you apply to this job, you can share why you’re interested to jump to the top of the candidate list.


Job description

Position Summary:

The primary responsibility of the Estimator and Preconstruction Project Manager is to oversee and facilitate all project procurement from advertisement to NOA including lease-leaseback, design-build and design-bid-build projects. Estimates are built on practical understanding of design, constructability, logistics, sequencing, and means and methods of a project. Communication with architects, owners, subcontractors, employees, and field personnel is key to having a successful project from pre-bid through project completion.

Essential Duties and Responsibilities:

Bid Opportunities:

o Reviewing bid sources daily to locate new bid opportunities. Daily search for addendum for projects on the bid list.

o Reviewing and fully vetting each bid opportunity for the right fit for the company and presenting to the team the details for final decision making.

Estimation and Bidding:

o Act as the Estimating Team Leader on all projects, thus coordinating the total estimating effort relevant to a particular project or proposals as assigned.

o Assign take-off assignments to team members and monitor progress as needed.

o Understand and manage estimating processes relative to the different delivery methods. Review and evaluate ITBs/RFPs for requirements.

o Facilitate bid package distribution and document control. Ensure bid documents and addendums are issued and managed timely.

o Read and understand plans, scope, and specs to provide estimate used for project bids. Estimate self-performed scopes, solicit bids from subcontractors, and develop accurate bid estimates that include complete scope of the project.

o Build and manage subcontractor relationships. Evaluate and document subcontractor qualifications. Ensures good subcontractor participation for all scopes for which they are responsible, before bid day. Compares and analyzes competitive subcontractor and supplier bids.

o Prepare bid advertisements, invitation to bid, and utilize Procore to track bid results.

o Perform constructability review throughout the estimate process. Identify risk factors that could affect budget, schedule, or project quality results. Submit RFI’s as needed. Review designs and specifications for cost-effectiveness and suggest appropriate alternatives.

o Develops and maintains a database of historical costs data and normalizes data for current projects.

Project Management:

o Change Event Estimating and cost review for all projects to verify accuracy of costs and scope of work.

Assist with RFP/Q submissions:

o Preparing schedules for both Preconstruction and Construction.

o Assist with preparing questions for the RFP/Q.

o Assist with preparing submission content with project specific details. Assist with Pricing Proposals.

o Complete a final review of the submission.

o Assist with interview preparation and attend interviews if opportunity allows.

Lead Preconstruction Services for all LLB/DB projects:

o Be the primary POC for all preconstruction activities from NOA to GMP Board Approval and internal handoff meeting.

o Coordinate with all team members to facilitate the preconstruction process and ensure all activities are completed timely.

o Schedule all necessary meetings and maintain action items to be executed upon. Keep Preconstruction Schedule current as dates change throughout the process. Review preconstruction schedule in the weekly bids meeting and track progress of each task following up with team members as needed.

o Manage RFI’s and Clarifications during the pre-construction phase. Turn over unanswered pre-bid RFI’s to the Project Manager to continue tracking post GMP.

o Performs site surveys and attend pre-bid/construction meetings.

o Develops GMP/GPC’s for lease-leaseback projects and any subsequent value engineering as needed.

o Prepares Bid Solicitation packages for lease-leaseback projects

o Assist with Budget and Schedule of Values once GMP is finalized.

o Distributes final GMP package which includes GMP, Qualifications and Exclusions, Bid Leveling, Subcontractor Solicitation, and Proof of Publication for Public Notice Advertisement.

o Lead the project “Handoff” meetings to the Operations Team. Communicate any procurement of long-lead materials required to keep the project on schedule during the handoff meeting.

o Cost code subcontractor proposals for hand off to contract admin.

Leadership:

o Lead weekly bid meetings and preconstruction team meetings, facilitate communication between FRC, subcontractors, suppliers, architects, CM and owners.

o Participate in company budget reviews and analysis including general conditions cost reviews.

o As time allows take on new tasks and/or assist where needed.

Competencies:

· Ability to multi-task and effectively prioritize in a dynamic fast-paced environment

· Must be a self-starter with ability to complete activities with minimal direction

· Must have very strong organizational skills and the ability to follow through on tasks

· Demonstrated ability to interact effectively with management and other departments as well as outside agencies and vendors

· Exceptional oral and written communication skills

· Professional attitude and a strong work ethic

· Well-developed analytical skills with the ability to identify and resolve problems in a timely manner

· Ability to read and fully understand the nuances of contract language and legal documents, plans and specifications, and subcontractor proposals.

Qualifications:

· Bachelor’s Degree or equivalent work-related experience preferred

· 5+ years within a public works construction environment preferred

· Procore Construction Management Software preferred

· High Proficiency in MS Office Suite, MS Projects and Adobe Acrobat or Bluebeam preferred

· Strong computer/technical analytical skills

Company Description

Company Overview:
The Company is a General Contractor focusing on Public Works Projects based mainly in Sonoma, Marin, Napa, Mendocino and Lake Counties. The Company is a dynamic, growing organization seeking an Staff Accountant to join our team. Customer service is central in our culture, with a focus on both our external and internal customers.