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 Education/Experience: Bachelor of Science Degree in Engineering, Construction Management or accredited construction-related curriculum A minimum of 5 years of estimating experience preferred or 15 years of relevant experience in the construction industry To thrive in this role, you'll need: 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 Experience with Revit and Navisworks preferred At Haskell, we offer a comprehensive benefits package, including health insurance, retirement plans, professional development opportunities, and more. Job 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.