Senior Estimator
Job Type

Company Profile:

Plant Prefab is the first Certified B Corporation™ building technology company dedicated to sustainable design, materials, and operations. The company’s patented Plant Building System™ utilizes advanced digital modeling and fully customizable Plant Panels™ and Plant Modules™ to help architects, developers, general contractors, and individuals design and build multifamily and custom single-family homes 20 to 50 percent faster than site-based methods. The system provides better quality control, design flexibility, and time, cost, and material efficiency than traditional methods of offsite or on-site construction. Plant opened a $40M, 270,000 square foot facility which can produce 3-5 million square feet of single and multifamily housing a year. It is the first automated factory in the US purpose built to create both panels and modules.   

With a mission to build a better world by design, over thirty Plant projects have been certified LEED Platinum or Gold, making the company one of the most experienced designers of homes at the highest level of LEED certification. Plant projects have garnered significant industry recognition including the AIA’s top sustainable award, Architizer’s Jury and People Choice Awards, Green Builder Magazine’s Home of Year, Business 2.0 “World’s 11 Coolest Products”, Business Week’s “Architectural Wonders of the World”, and the Sustainable Quality Awards Grand Prize.


Job Summary:

Plant Prefab is seeking a Senior Estimator to join our growing team. The Senior estimator will be responsible for developing accurate time and cost construction estimates for Type V residential construction. The ideal candidate will have knowledge and experience reviewing construction plans, identifying specifications, and communicating with A&E design professionals, general contractors, and construction trades. This role will be located at our Tejon Ranch, CA manufacturing facility and will report to the Director of Estimating. 

Core Responsibilities:

  • Review plans and specifications to determine scope of work and identify potential information gaps.
  • Issue and manage RFI response and escalation process.
  • Develop full-scope estimates based on schematic, design development and construction documents. 
  • Prepare estimates for cost and project durations and identify critical path items and long lead time items to ensure project success. 
  • Manage pre-bid submission and qualification information and ensure bid deadlines are met. 
  • Prepare detailed QTOs (quantity take offs) by trade as required. 
  • Develop contingency and risk management plans for items that can impact time and schedules.
  • Issue and manage RFQs to approved vendors and trades and analyze data to prepare accurate estimates.
  • Provide timely and concise project status reports.
  • Collaborate with clients to understand project goals and develop competitive estimates.
  • Plan and assess takeoff workload and clearly communicate requirements.

Required Knowledge, Skills, and Abilities:

  • Bachelor of Science in Construction Management, Engineering or equivalent
  • 7+ years of experience developing construction documents for projects of various sizes.
  • Experience and knowledge using estimating and construction management software.
  • Excellent communication and relationship-building skills with an ability to prioritize, negotiate, and work with a variety of internal and external stakeholders.
  • Exceptional attention to detail
  • Deep knowledge and understanding of relevant construction codes.
  • Able to manage multiple projects concurrently.


  • Competitive compensation (salary, discretionary bonus, and stock options) commensurate with experience and skills 
  • Excellent medical, vision, and dental insurance 
  • The opportunity to work with great architects and meaningfully contribute to projects that improve the quality of life for people and the planet 


Application Instructions:

Please apply on Paylocity, taking care to complete all required fields. 


Applicants must be authorized to legally work in the U.S.; sorry, no sponsorship is available. Applicants may be subject to passing a background check, drug screening, and pre-employment physical. Plant Prefab has an ongoing commitment to diversity, equity, and inclusion.

Salary Description
Starting at $85,000+/ year DOE