Sr. Mechanical Estimator

• Develop detailed mechanical and piping construction estimates, including craft labor hours, materials, equipment, subcontractor costs, and other project execution costs.
• Review drawings, specifications, work packages, and scope documents to establish estimating requirements and identify gaps or uncertainties.
• Perform quantity takeoffs for piping, fittings, valves, supports, mechanical equipment, and associated installation activities.
• Estimate craft labor for equipment installation, piping fabrication and installation, welding, rigging, testing, and related mechanical work.
• Account for nuclear site conditions that affect execution and productivity, including access restrictions, radiological controls, work windows, congestion, and outage schedules.
• Incorporate applicable quality requirements, inspections, nondestructive examination, testing, and turnover documentation into estimates.
• Work with construction leaders, craft supervision, engineering, procurement, and project controls to validate execution plans, labor assumptions, and schedules.
• Evaluate vendor and subcontractor quotations for scope completeness and alignment with project requirements.
• Prepare estimate assumptions, exclusions, clarifications, and supporting documentation for internal review and proposal development.
• Support scope changes and estimate revisions, and use available actual cost and productivity data to improve future estimates.

• Perform work related to the management or general business operations of MATRIX or its customers/clients, while exercising discretion and independent judgment with respect to matters of significance to MATRIX and its customers/clients.
• Interface with managers or head of a unit/department requiring the integration of multiple functional organizations.
• Use “lessons learned” to improve quality of MATRIX’s future projects; make recommendations to MATRIX as to the implementations of future policies and procedures.

• Significant experience developing detailed estimates for mechanical and piping construction projects, including direct experience in nuclear facilities.
• Strong understanding of nuclear construction and modification work, with particular emphasis on craft labor requirements and field execution.
• Demonstrated ability to estimate labor hours and productivity based on installation methods, work sequencing, site constraints, and project conditions.
• Ability to interpret mechanical drawings, piping isometrics, P&IDs, equipment specifications, and construction scope documents.
• Working knowledge of piping fabrication, welding, supports, mechanical equipment installation, rigging, inspection, and testing.
• Familiarity with nuclear quality assurance, work control, and documentation requirements as they affect construction scope and cost.
• Proficiency with estimating tools and Microsoft Excel, with the ability to clearly document and explain the basis of an estimate.
• Strong attention to detail and ability to coordinate with engineering, construction, procurement, and project controls teams
• The ability to communicate well both verbally and written as a business necessity to ensure the safe and efficient operations of business. Clear, concise, and effective fluency in the English language is essential

• Prior experience supporting nuclear outages, major plant modifications, or new nuclear construction.
• Previous mechanical or piping craft, field supervision, or construction management experience.
• Familiarity with applicable ASME codes and nuclear mechanical and piping requirements.
• Experience reconciling estimates against actual field costs and craft productivity.
• Proficiency with Hard Dollar / N8 estimating software.

• Availability for travel and site visits as required.
• Ability to meet applicable client and nuclear site access requirements.

Compensation