Civil Contractor Jobs in Colton, CA (NOW HIRING)

We are seeking an experienced Senior Estimator – Heavy Civil to lead the development of accurate, competitive estimates for complex infrastructure projects throughout Southern California.

The ideal candidate will have extensive experience estimating for a self-performing heavy civil contractor, with strong knowledge of underground utilities, earthwork, grading, asphalt paving, structural concrete, railroad, and public works construction.

This is a hands-on estimating role for an experienced professional who understands heavy civil means and methods, crew productivity, equipment utilization, material costs, subcontractor scopes, and project risk. The Senior Estimator will work closely with operations and executive leadership to evaluate opportunities, develop bid strategies, and successfully transition awarded projects to the operations team.

• Lead preparation of detailed estimates and competitive bids for heavy civil infrastructure projects.
• Review plans, specifications, geotechnical reports, contracts, addenda, and other bid documents to determine complete project scope.
• Perform and review detailed quantity takeoffs for self-performed and subcontracted scopes.
• Develop accurate labor, equipment, material, subcontractor, and indirect costs.
• Build detailed crew-based production estimates based on construction means and methods.
• Develop and validate production rates, crew compositions, equipment requirements, and unit costs.
• Lead estimating efforts for self-performed work including:
  • Underground Utilities
  • Water, Sewer & Storm Drain
  • Earthwork & Mass Grading
  • Excavation
  • Asphalt Paving
  • Structural Concrete
  • Railroad Infrastructure
  • Public Works
• Solicit, review, level, and negotiate subcontractor and supplier proposals.
• Identify scope gaps and ensure complete bid coverage.
• Develop bid strategies with operations and executive leadership.
• Analyze project risks, opportunities, site constraints, logistics, and constructability.
• Evaluate alternative construction methods and value engineering opportunities to improve bid competitiveness.
• Attend pre-bid meetings and conduct project site visits.
• Coordinate with Project Managers and Superintendents to validate construction approach, production assumptions, equipment needs, and schedules.
• Develop preliminary construction schedules and sequencing to support estimates.
• Participate in estimate reviews and final bid-day pricing decisions.
• Prepare bid proposals, qualifications, clarifications, and supporting documentation.
• Support owner negotiations and post-bid interviews when required.
• Lead project handoff meetings following successful awards to ensure estimating assumptions are effectively communicated to operations.
• Maintain and analyze historical cost and production data to continuously improve estimating accuracy.
• Monitor labor, equipment, fuel, concrete, asphalt, aggregate, pipe, and other material pricing.
• Mentor and develop junior estimators and estimating staff.
• Build and maintain relationships with subcontractors, suppliers, owners, engineers, and industry partners.

Candidates with estimating experience across multiple heavy civil disciplines are highly preferred, including:

• Underground Wet Utilities
• Water & Sewer Pipelines
• Storm Drain
• Earthwork
• Mass Excavation
• Mass Grading
• Asphalt Paving
• Structural Concrete
• Bridges & Structures
• Railroad Construction
• Caltrans
• Public Works
• Utility Infrastructure
• Transportation Infrastructure
• Municipal & Agency Projects

• 10+ years of heavy civil construction estimating experience.
• Strong background estimating for a self-performing heavy civil contractor.
• Demonstrated estimating experience across multiple scopes including utilities, earthwork, grading, asphalt, and concrete.
• Strong knowledge of the Southern California heavy civil construction market.
• Experience bidding public works, municipal, transportation, railroad, or utility-owner projects.
• Advanced understanding of heavy civil construction means and methods.
• Strong knowledge of labor and equipment production rates.
• Ability to read and interpret complex civil plans, specifications, geotechnical reports, and contract documents.
• Experience developing complete estimates from initial quantity takeoff through final bid submission.
• Strong analytical, organizational, communication, and negotiation skills.
• Ability to manage multiple estimates and meet critical bid deadlines.

Candidates should have strong experience with:

• Quantity Takeoffs
• Conceptual & Detailed Estimating
• Crew-Based Estimating
• Production Rate Development
• Labor & Equipment Pricing
• Material Pricing
• Subcontractor Bid Leveling
• Bid Solicitation
• Cost Analysis
• Means & Methods
• Constructability Reviews
• Value Engineering
• Risk Analysis
• Bid Strategy
• Preliminary Scheduling
• Cost History & Production Tracking
• Public Works Bidding
• Project Handoffs

Experience with industry estimating and construction software is highly preferred, including:

• HCSS HeavyBid
• InEight / Hard Dollar
• Bluebeam Revu
• Primavera P6
• Microsoft Excel
• Microsoft Office Suite
• Digital takeoff software
• Construction scheduling and project management platforms

• Caltrans estimating and bidding experience.
• Railroad construction experience with BNSF, Union Pacific, Metrolink, or similar rail owners.
• Extensive California public works bidding experience.
• Experience estimating large self-performed heavy civil projects.
• Strong relationships with Southern California subcontractors and suppliers.
• Experience with Design-Build, CM/GC, or other alternative delivery methods.
• Experience mentoring and developing junior estimating professionals.

We are looking for a hands-on heavy civil estimator who understands how work is actually built in the field.

The successful candidate will be able to look beyond quantities and unit prices to understand crew composition, production, equipment selection, site logistics, sequencing, constructability, and project risk.

This individual should be equally comfortable performing detailed estimate reviews, discussing means and methods with Superintendents, developing bid strategy with leadership, negotiating subcontractor pricing, and leading a final bid review.

Southern California – Riverside Region

Regional travel for pre-bid meetings, site walks, and project visits may be required.

• Base Salary: $150,000–$200,000+, depending on experience.
• Profit sharing / performance incentives.
• Company vehicle or vehicle allowance.
• Medical, Dental, and Vision insurance.
• 401(k) retirement benefits.
• Paid Time Off.
• Additional company benefits.
• Long-term advancement opportunities within estimating and preconstruction leadership.

This is an opportunity to take a senior role in pursuing and winning complex heavy civil work throughout Southern California. You'll have direct involvement in bid strategy, estimating, preconstruction, means and methods, risk analysis, and project selection while working closely with experienced operations and executive leadership.