Senior Estimator: Lead Ground-Up Cost Modeling

Ajax Building Company; Atlanta (GA); On-site; USD 120,000 - 160,000; Full time

Benefits offered by this job

Medical Insurance

Dental Insurance

Vision Insurance

401(k) retirement plan with employer‑匹

Job summary

Ajax Building Company is seeking a Senior Estimator to lead the development of detailed cost estimates for complex commercial construction projects. The role is hands-on, data-driven, and requires owning the accuracy of estimates from draw‑set through final numbers.

Reporting to the Chief Estimator, you will build comprehensive cost models, mentor junior estimators, and support preconstruction activities in a collaborative Southeast environment.

Qualifications

• Bachelor's degree in Construction Management, Engineering, or related field or equivalent technical training.
• 7–10+ years of construction estimating experience.
• Strong ability to read drawings and develop detailed bottom-up estimates.
• Experience with cost drivers across CSI divisions and project documentation.

Responsibilities

• Lead development of complete, bottom-up estimates for assigned projects.
• Perform detailed quantity takeoffs and build estimates from project documents and cost data.
• Analyze historical cost data and incorporate trends into estimates.
• Review drawings and specifications to ensure complete scope coverage.
• Maintain organized backup documentation for all estimate assumptions.
• Coordinate with internal teams to validate scope and constructability.

Skills

Analytical skills

Attention to detail

Multitasking

Verbal and written communication

Education

Bachelor's degree in Construction Management or Engineering

Tools

On-Screen Takeoff

Microsoft Office

Bluebeam or Adobe

Job description

Ajax Building Company is seeking a Senior Estimator to lead the development of detailed cost estimates for complex commercial construction projects. The role is hands-on, data-driven, and requires owning the accuracy of estimates from draw‑set through final numbers.

Reporting to the Chief Estimator, you will build comprehensive cost models, mentor junior estimators, and support preconstruction activities in a collaborative Southeast environment.