Senior Process Mechanical Estimator - Water

The Haskell Company•St. Louis, MO

54d•Hybrid

About The Position

At Haskell, you’re not just joining a company, you’re joining a nationally recognized Top Workplace where diverse perspectives and inclusive thinking drive stronger outcomes. Whether you’re starting out, growing your expertise, or leading the way, you’ll find a culture grounded in trust, driven by excellence, and built to support your goals. Here, you’ll have the opportunity, flexibility, and sense of belonging to grow your career your way—while making a real impact. The Process Mechanical Estimator is responsible for developing accurate, comprehensive cost estimates for water and wastewater treatment facilities, as well as industrial water new construction projects. This role involves analyzing project drawings, specifications, and technical requirements to produce detailed quantity takeoffs for mechanical systems and process equipment.

Requirements

Professional experience estimating process mechanical scopes for water/wastewater treatment facility construction and/or industrial water projects
Working knowledge of treatment processes and major equipment types, including clarifiers, blowers, pumps, chemical feed systems, aeration, and solids handling
Ability to read, interpret, and analyze complex mechanical and process design documents
Estimating software experience required, Beck Destini Estimator and FastPIPE preferred
Proficiency with construction estimating software and Excel-based estimating tools
Strong understanding of construction means and methods for mechanical installation, including rigging, piping, equipment setting, and startup requirements
Excellent analytical, mathematical, and problem-solving skills
Strong communication skills for coordinating with vendors, subcontractors, engineers, and internal teams
Experience with Design-Build and CMAR (Construction Manager at Risk) project delivery methods
Proven computer proficiency, including Microsoft Office applications

Nice To Haves

Experience with Revit and Navisworks preferred

Responsibilities

Evaluate P&IDs, mechanical equipment schedules, process piping layouts, and construction sequencing
Develop project budgets and competitive bid proposals
Perform risk assessments and identify potential cost or schedule impacts
Support value‑engineering efforts to optimize project performance and cost
Apply strong technical knowledge of process mechanical systems, including pumps, piping, valves, chemical feed systems, aeration, grit removal, and other treatment equipment
Utilize estimating software and construction methodologies to produce accurate, detailed estimates
Communicate effectively with internal teams, subcontractors, and clients
Maintain strong organizational and analytical practices to ensure thorough and accurate project documentation
Review and interpret construction documents, including P&IDs, mechanical drawings, specifications, and equipment schedules for water/wastewater treatment projects and/or industrial water projects.
Perform detailed quantity takeoffs for process mechanical systems (pumps, piping, valves, chemical feed, aeration, tanks, basins, etc.)
Develop accurate material, labor, and equipment cost estimates for new‑construction treatment facilities and major process upgrades
Solicit, scope, and evaluate subcontractor and vendor proposals to ensure alignment with project requirements
Prepare complete bid packages, including pricing summaries, clarifications, exclusions, and risk assessments
Participate in constructability reviews and collaborate with engineering, operations, and project management to ensure accurate assumptions
Support value‑engineering efforts by identifying cost‑saving alternatives without compromising design intent or performance
Maintain up‑to‑date knowledge of industry pricing, market conditions, and mechanical installation methodology
Track historical cost data to support continuous improvement of estimating accuracy
Assist preconstruction and project teams during handoff, procurement, and early planning phases as needed
Other duties which may be assigned as needed