Estimator​/Senior Estimator – K-12 Public Education & Hard Bid

About CORE Builders:

CORE Builders is a premier general contractor known for delivering high-quality construction projects on time with a commitment to excellence, safety, client satisfaction, and our Vision of Success. We specialize in a variety of construction projects, from rehabilitation projects, affordable housing, and large-scale developments, and are actively trying to pursue and establish ourselves within the education market. We pride ourselves on our innovative approach and collaborative culture.

Position Summary:

CORE Builders is seeking an Estimator or Senior Estimator to join our Preconstruction team with a primary focus on competitive hard-bid pursuits in the K-12 public education market. This position will be responsible for developing complete, accurate, and competitive estimates from plans and specifications through final bid submission.

The successful candidate will play an important role in helping CORE Builders establish and expand its presence in the public education market. The position will require strong knowledge of competitive bidding, subcontractor outreach, scope analysis, quantity takeoffs, bid leveling, public procurement requirements, and final bid preparation.

Following award, the Estimator/Senior Estimator will support subcontractor buyout, scope clarification, estimate-to-buyout reconciliation, and project handoff as needed.

• Lead and support competitive hard-bid proposals for K-12 public education projects.
• Attend pre-bid conferences/job walks for upcoming pursuits.
• Review plans, specifications, addenda, bid forms, front-end documents, and other public procurement requirements.
• Develop detailed quantity takeoffs and complete estimates for labor, materials, equipment, subcontractor work, general conditions, general requirements, and other project costs.
• Prepare and issue bid packages and solicit competitive pricing from qualified subcontractors and suppliers.
• Develop subcontractor coverage strategies and proactively pursue pricing to ensure complete coverage across all scopes.
• Analyze, level, and reconcile subcontractor and supplier proposals for scope, exclusions, qualifications, and pricing.
• Identify scope gaps, design conflicts, risk items, and opportunities for value engineering.
• Prepare final bid estimates, bid forms, alternates, allowances, and other required bid documentation.
• Coordinate final bid compilation and submission in accordance with owner requirements and bid deadlines.
• Review bid results and maintain competitive market intelligence for future pursuits.

• Help establish and expand CORE Builders’ presence in the K-12 public education market.
• Develop and maintain relationships with qualified subcontractors and suppliers serving school districts and public works projects.
• Expand CORE Builders’ subcontractor database and market coverage within the education sector.
• Track public education bid opportunities and support pursuit decisions by evaluating scope, schedule, competition, and estimating requirements.
• Build cost history and benchmarking information specific to K-12 construction to improve future bids.

• Use Pro Est, Bluebeam, Excel, and other estimating tools to prepare and maintain detailed estimates.
• Communicate estimate assumptions, exclusions, clarifications, risks, and scope gaps clearly.
• Collaborate with Operations and Preconstruction teams on constructability, schedule, logistics, and cost considerations.
• Participate in value engineering and identify cost-effective alternatives while maintaining project requirements.
• Maintain organized estimate files and support consistent estimating procedures and standards.

• Support the Operations team…