Corporate Senior Estimator

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Irby Construction Company has been building infrastructure for the power industry for more than 75 years. Our business values and performance‑driven mindset guide our actions. Safety, people‑first culture, innovation, and commitment to performance guide our work. The firm offers a family‑oriented culture, inclusive environment, excellent benefits, clear career pathways, and a legacy of executive leaders who started early in their careers.

We are a wholly‑owned subsidiary of Quanta Services, providing the stability and resources of a Fortune 500 organization.

As a Senior Estimator, you will lead the estimating process for large, complex electrical infrastructure projects, preparing accurate and competitive cost assessments while mentoring junior team members and collaborating across departments to ensure the success of Irby’s bids and proposals.

Location/Travel Requirements:
Position is based in Irby’s Richland, MS Corporate office with approximately 10% travel.

• Lead the take‑off and estimating process for major projects, including bid unit comparisons, scope reviews, and cost analysis.
• Prepare and review estimates for labor, equipment, materials, and subcontractors, ensuring accuracy and competitiveness.
• Review and analyze proposal contracts, specifications, KMZ, BOM, submittals, and drawings, providing guidance to estimators and project teams.
• Identify risks, schedule requirements, and methods of construction after reviewing project documentation.
• Participate in and/or lead pre‑bid meetings, virtually and in person, representing Irby alongside operations and project teams.
• Send contract information to subcontractors for pricing and clarifications; analyze and determine the most competitive and qualified subcontractors.
• Generate and review time & equipment rates, storm rates, and pricing sheets for ongoing and upcoming projects.
• Assist with RFI, sustainability, and commercial proposal questions, guiding estimators and coordinators in providing accurate responses.
• Create and manage Work Breakdown Structure (WBS) codes in Excel for job budgets.
• Set up jobs in JDE and ensure accurate data entry for project execution.
• Review and comment on blue sheets and submittal documents, ensuring completeness and compliance.
• Collect and analyse historical cost data for use in future projects.
• Utilise Microsoft Excel, Word, Project, P6, and Irby’s in‑house bidding sheets to support estimating and project planning.
• Oversee the preparation of green sheets (bid vs. actual cost comparisons) and Earned Value Reports (EVRs).
• Ensure accurate material pricing is applied to estimates and review contractor inputs for accuracy.
• Develop strategic bid presentations and present estimates for executive and field operations review.
• Collaborate across departments and maintain strong relationships with vendors, subcontractors, engineers, and clients.
• Stay updated on industry developments, tools, and methods to maintain competitive estimating practices.
• Mentor lower‑level estimators, providing guidance and review of their work until they are proficient.
• Utilise Irby’s Bid SharePoint site and Salesforce data to manage bid documentation and project information.

• Bachelor’s Degree in Construction Management, Engineering, Business Administration, or related field; or equivalent experience.
• 5+ years of estimating experience in construction, preferably in electrical utilities, transmission, substation, or distribution projects.
• Advanced skills in Microsoft Excel, Word, Project, and working knowledge of P6 scheduling.
• Strong knowledge of estimating principles, cost analysis, contract review, and risk management.
• Ability to analyse drawings, specifications, and submittals with a thorough understanding of project requirements.
• Excellent communication skills, with the ability to present estimates and recommendations to executives and field teams.
• Demonstrated ability to manage complex projects from A to Z, coordinating subcontractors and internal stakeholders.
• Strong leadership and…