Senior Estimator

STO Building Group•Tampa, FL

11d

About The Position

Ajax Building Company is seeking an experienced Senior Estimator to lead the development of accurate, detailed cost estimates for complex commercial construction projects. This hands-on, technical role develops complete estimates from the ground up, including quantities based on drawings and project information. The Senior Estimator reports to and is directly accountable to the Chief Estimator, and contributes comprehensive, data-driven cost models to support project pursuits. The role is suited to an experienced estimator who stays directly involved in estimate development, takes ownership of accuracy and outcomes, and works in a focused, collaborative environment. Ajax is a commercial contractor delivering projects across the Southeast in markets including healthcare, K–12, higher education, justice, municipal, and mission critical. The company describes a collaborative, team-oriented culture, meaningful responsibility, exposure to varied and challenging work, and career advancement opportunities.

Requirements

Bachelor’s degree in Construction Management, Engineering, or a related field, or equivalent technical training.
7–10+ years of construction estimating experience.
Strong experience developing detailed, bottom-up estimates.
Deep understanding of construction methods, sequencing, and cost drivers across multiple CSI divisions.
Ability to read and interpret complex drawings and specifications.
Proficiency in On-Screen Takeoff or similar software.
Proficiency in Microsoft Office Suite, including Excel, Word, and Outlook.
Proficiency in Bluebeam and/or Adobe.
Strong analytical and mathematical skills and ability to build accurate, detailed estimates from project documents and cost data.
High attention to detail and strong organizational skills.
Ability to manage multiple priorities and meet deadlines in a fast-paced environment.
Strong verbal and written communication skills.

Nice To Haves

Experience with DESTINI Estimator or similar.
Experience with EarthWorks.

Responsibilities

Lead the development of complete, bottom-up estimates for assigned projects.
Perform detailed quantity takeoffs and build estimates based on project documents and company cost data.
Analyze historical cost data and incorporate trends and lessons learned into estimates.
Review drawings, specifications, and project documentation to ensure complete scope coverage.
Maintain thorough, well-organized backup documentation for estimate assumptions and quantities.
Coordinate internally to validate scope, assumptions, and constructability considerations.
Support estimate updates, revisions, and cost comparisons throughout the preconstruction process.
Assist with cost tracking, change orders, and estimate reconciliation on awarded projects as needed.
Mentor and support junior estimators as appropriate while remaining directly involved in estimate development.
Perform additional assignments to support the Estimating team.