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Prefab Jobs in California (NOW HIRING)

Project Manager

CA · On-site

$90K/yr

Plant Prefab is a certified B Corp and Benefit Corporation that manufactures customized prefabricated building components-enabling general contractors, developers, and homebuilders to construct high ...

Production Foreman

San Jose, CA · On-site

$28 - $33/hr

Communicates results to Prefab team * Identifies and communicates staffing needs and individual performance to management team Material * Oversees the handling/storage of materials * Accounts for ...

Field and Prefab Integration * Collaborate with the Superintendent/Foreman and BIM Coordinators to: * Review and redline design documents for constructability, field accuracy, and completeness.

VDC BIM Detailer

Sacramento, CA · On-site

$40.29 - $63.51/hr

Field and Prefab Integration * Collaborate with the Superintendent/Foreman and BIM Coordinators to: * Review and redline design documents for constructability, field accuracy, and completeness.

VDC BIM Detailer

Sacramento, CA · On-site

$40.29 - $63.51/hr

Field and Prefab Integration * Collaborate with the Superintendent/Foreman and BIM Coordinators to: * Review and redline design documents for constructability, field accuracy, and completeness.

VDC BIM Modeler

Sacramento, CA · On-site

$30.53 - $46.25/hr

Coordinate with the manufacturing team to confirm modeled elements meet prefab requirements. Technical Support & Troubleshooting * Troubleshoot modeling issues and support team members with BIM ...

VDC BIM Modeler

Sacramento, CA · On-site

$30.53 - $46.25/hr

Coordinate with the manufacturing team to confirm modeled elements meet prefab requirements. Technical Support & Troubleshooting * Troubleshoot modeling issues and support team members with BIM ...

VDC BIM Modeler

Sacramento, CA · On-site

$30.53 - $46.25/hr

Coordinate with the manufacturing team to confirm modeled elements meet prefab requirements. Technical Support & Troubleshooting * Troubleshoot modeling issues and support team members with BIM ...

VDC BIM Modeler

Sacramento, CA · On-site

$30.53 - $46.25/hr

Coordinate with the manufacturing team to confirm modeled elements meet prefab requirements. Technical Support & Troubleshooting * Troubleshoot modeling issues and support team members with BIM ...

VDC BIM Modeler

Sacramento, CA · On-site +1

$30.53 - $46.25/hr

Coordinate with the manufacturing team to confirm modeled elements meet prefab requirements. Technical Support & Troubleshooting * Troubleshoot modeling issues and support team members with BIM ...

Showing results 21-40

Prefab information

See California salary details

$14

$26

$38

How much do prefab jobs pay per hour?

As of Sep 6, 2026, the average hourly pay for prefab in California is $26.42, according to ZipRecruiter salary data. Most workers in this role earn between $22.07 and $28.94 per hour, depending on experience, location, and employer.

What is a prefab?

A Prefab job involves working with prefabricated materials or structures, which are manufactured off-site and then transported for assembly at a construction site. Workers in prefab jobs may be responsible for assembling, installing, or modifying these components according to project specifications. This type of work is common in industries like construction, manufacturing, and modular housing, allowing for faster and more efficient building processes.

What does a prefab do?

A typical day for a Prefab worker involves assembling building components according to detailed plans, often within a factory or on-site modular construction environment. You’ll be working closely with a team to ensure all elements are fitted accurately, making use of various tools and machinery throughout the process. Safety meetings and quality checks are a routine part of the workflow to maintain standards. Collaboration with supervisors, electricians, plumbers, and other trades is common, which keeps the work dynamic and varied. The role offers hands-on experience and valuable teamwork opportunities, providing a strong foundation for advancement in the construction and manufacturing sectors.

What are the key skills and qualifications needed to thrive in the prefab position, and why are they important?

To excel as a Prefab worker, you need solid experience in construction methods, blueprint reading, and the assembly of prefabricated building components, often supported by a high school diploma and relevant on-site training. Familiarity with power tools, hand tools, forklifts, and sometimes OSHA safety certifications is typically required. Attention to detail, teamwork, and strong communication skills help distinguish top performers in this role. These abilities ensure the efficient, accurate, and safe assembly of modular structures in a fast-paced environment.

What are popular job titles related to Prefab jobs in California?

For Prefab jobs in California, the most frequently searched job titles are:

What job categories do people searching Prefab jobs in California look for?

The top searched job categories for Prefab jobs in California are:

What cities in California are hiring for Prefab jobs?

Cities in California with the most Prefab job openings:

Infographic showing various Prefab job openings in California as of August 2026, with employment types broken down into 1% As Needed, 93% Full Time, 4% Part Time, 1% Temporary, and 1% Contract. Highlights an 97% Physical, and 3% Remote job distribution, with an average salary of $54,959 per year, or $26.4 per hour.

Mechanical Category Lead

McCarthy Building Companies, Inc.

Sacramento, CA

Full-time

Posted 3 days ago

New


McCarthy Building Companies rating

7.4

Company rating: 7.4 out of 10

Based on 29 frontline employees who took The Breakroom Quiz


Job description

POSITION SUMMARY

The Category Lead, Mechanical owns the Mechanical and Plumbing (MP) systems category where integration of labor, materials, and prefab is critical (e.g., air handling units, chillers, boilers, pumps, ductwork, piping systems, plumbing fixtures, controls). Focuses on system level optimization, rather than individual components, to support complex building and industrial projects.

RESPONSIBILITIES

  • Category Strategy & Roadmap
    • Defines holistic strategies for major MEP systems (mechanical plants, distribution systems, plumbing systems, controls), including:
      • Establishes standardized system “families” and preferred solutions by market and building type.
      • Evaluates make‑vs‑buy and prefab vs. field‑build decisions, in concert with Prefab and Design Phase teams.
    • Aligns with Self‑Perform Mechanical, National Water, mission critical / healthcare, and national MEP leadership.
  • Spend & Market Intelligence
  • Builds and maintains material taxonomy, spend views, and should cost models for major mechanical components.
  • Tracks mechanical market conditions including lead times, air handling units, chillers, boilers, pumps, ductwork, piping systems, plumbing fixtures, controls pricing, standards, codes, tariffs, and informs early buy down opportunities.
  • Builds TCO models that reflect equipment + piping/duct + installation + commissioning + lifecycle energy/maintenance.
  • Tracks OEM and integrator landscapes, including design assist partners and MEP subs capable of supporting national or regional programs.
  • Sourcing & Contracting
  • Co-leads sourcing events with Strategic Sourcing for:
    • Key MEP OEMs including HVAC equipment, controls, specialty systems.
    • Strategic MEP subcontractors and integrators (design‑build/design‑assist).
    • Establishes partnering frameworks (e.g. framework agreements, preferred partner programs) emphasizing:
      • Standardization and repeatability
      • Early collaboration in design and precon
      • Alignment with prefab and logistics models
  • Supplier & Risk Management
  • Owns SRM for strategic mechanical suppliers, ensuring:
    • Capacity and prioritization for megaprojects and program work.
    • Robust warranty, commissioning, and technical support.
  • Leads risk assessments for long lead / critical items (e.g., AHUS, chillers, boilers) and defines mitigation including alternate OEMs, standardization, and early commitment.
  • Identifies high risk MEP scopes (e.g., mission critical, healthcare, water/process, large industrial) and design sourcing and contracting to address:
    • Capacity and qualified labor availability.
    • Commissioning, warranty, and performance guarantees.
    • Coordination risk among trades and suppliers.
  • Governance, Standards & Playbooks
    • Develops and maintains Mechanical Category Playbook:
      • Preferred specifications, OEMs, channel strategy, ordering rules, lead time guidance.
      • Ensures integration with VDC, design standards, and prefab assemblies.
    • Partners with 02S Solutions Integration to embed mechanical procurement workflows in project intake and margin planning.
  • Key Interfaces
    • Internal: Self‑Perform Mechanical, National Water & Process Pipe, regional MEP leaders, Design Phase / VDC, Prefab Leadership, 02S Logistics, 02S Buyers, Project Ops.
    • External: MEP OEMs, integrators, key MEP subs, commissioning agents, controls vendors. 

QUALIFICATIONS

  • Bachelor’s degree in Construction Management, Architecture, Engineering, Supply Chain, Business, or related field
  • 5+ years of progressive experience in mechanical systems and equipment, with category management experience, procurement, or strategic sourcing management
  • Proven track record in supplier negotiations and contract management
  • Experience implementing sourcing technology and analytics tools
  • CPSM, PMP, or similar certification preferred
  • Strong leadership, communication, and stakeholder management skills
  • Deep technical knowledge of mechanical systems and equipment.
  • Demonstrated success in strategic sourcing and category management within mechanical systems
  • Ability to bridge engineering, construction, prefabrication, and procurement perspectives.
  • Strong analytical skills with the ability to interpret spend data, total cost of ownership, should-cost models, and supplier performance metrics
  • Demonstrates behaviors consistent with McCarthy core values: Genuine, We, Not I and All In

Preferred Skills 

  • Experience in Category Management and Procurement within the Design and Construction Industry
    • Understanding of vendor sourcing, solicitation, negotiation, bidding, and purchasing process.
    • Knowledge of operational work flows across construction managers, general contractors, subcontractors, distributors, and manufacturers.
  • Strategic Thinking & Business Acumen
    • Ability to align sourcing strategies with broader business goals and financial targets.
    • Strong understanding of project-based procurement and margin optimization.
  • Advanced Data Analytics
    • Proficiency in spend analysis tools (e.g., Tableau, Power BI, Coupa, SAP Ariba).
    • Experience with data visualization and presenting actionable insights to executives.
  • Category Management Expertise
    • Knowledge of category strategy development and lifecycle management.
    • Familiarity with market intelligence tools and supplier benchmarking.
  • Contracting & Legal Acumen
    • Understanding of contract law, risk mitigation, and compliance across jurisdictions.
    • Experience partnering with legal teams on complex negotiations.
  • Supplier Relationship Management
    • Experience building strategic partnerships and conducting performance reviews.
    • Familiarity with SRM platforms and joint innovation initiatives.
  • Technology & Digital Procurement
    • Experience implementing e-sourcing platforms and digital procurement workflows.
    • Familiarity with AI-driven sourcing tools and automation technologies.
  • Leadership & Change Management
    • Proven ability to lead cross-functional teams and drive organizational change.
    • Strong stakeholder engagement and conflict resolution skills.
  • Communication & Influence
    • Excellent presentation and storytelling skills for executive-level audiences.
    • Ability to influence decisions across diverse teams and senior leadership.
  • Indicative KPIs
    • MEP system‑level savings and cost predictability vs. estimates.
    • Reduction in MEP‑driven schedule risk (e.g. improved lead‑time adherence, fewer change‑driven delays).
    • Increased standardization and reuse of system archetypes and prefab content.
    • Improved system performance outcomes including energy, reliability, and warranty claims, on key programs.


McCarthy is proud to be an equal opportunity employer, including disability and protected veteran status.

Pending CA location and experience, the salary range for this position is: $165,000 - $200,000. This does not include possible bonus and other benefits which can impact total compensation. Compensation offered may vary based on work location, experience, qualifications, specialty, training, and market and business considerations, among other factors. 


NOTICE TO EXTERNAL SEARCH FIRMS: McCarthy’s Talent Acquisition Team is the only authorized representative permitted to engage with external search firms, staffing agencies, or other third-party recruiting partners. McCarthy maintains an Approved Agency List for recruiting partners, which is reviewed and updated annually.
McCarthy will only consider submissions from agencies with a signed fee agreement in place for the current year. McCarthy does not accept unsolicited resumes, candidate submissions, or referrals from agencies that do not meet these requirements.
If a candidate is submitted without an active agreement, McCarthy will have no obligation to pay any fees and reserves the right to contact, engage, interview, or hire such candidate(s) without any financial or other responsibility to the submitting agency. Unsolicited resumes, including those sent directly to hiring managers or other employees, will be considered the property of McCarthy.


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About McCarthy Building

Sourced by ZipRecruiter

McCarthy Building, headquartered in Saint Louis, MO, US, is a leading construction company primarily offering general contracting, design-build and construction management services throughout the United States. Its prominent industry presence can be explored in detail on its official website, mccarthy.com. Founded in 1864, the company has built a robust legacy marked by significant contributions to the U.S. construction industry. McCarthy Building engages a broad range of sectors, including healthcare, education, commercial, renewable energy, and advanced technology.

Industry

Construction

Company size

1,001 - 5,000 Employees

Headquarters location

Saint Louis, MO, US

Year founded

1864

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