Location: Grapevine, TX (Relocation to DFW required; assistance available) Southland Holdings is seeking an experienced Senior Estimator focused exclusively on water and wastewater treatment plant construction. This position supports estimating efforts for complex, process-driven facilities including treatment plants, pump stations, and advanced water infrastructure projects. For more than 100 years, hard-working, honest, and innovative people have built what has become Southland Holdings. Our companies deliver critical water infrastructure that improves public health, environmental sustainability, and community resilience. What We Offer + Competitive compensation + Excellent vacation and paid time off program + Long-term career growth opportunities + Relocation assistance to the Dallas–Fort Worth area + Health, Dental, Vision insurance + 401(k) with company match Qualifications + 7+ years of experience in water and wastewater treatment plant construction + 5+ years of experience estimating vertical and process-intensive treatment facilities + Proven success estimating $10M–$100M+ treatment plant projects + Strong technical understanding of: + Cast-in-place concrete tanks and treatment structures + Process mechanical systems and large-diameter plant piping + Equipment installation (pumps, blowers, clarifiers, filters, membranes, UV, etc.) + Chemical feed systems and yard piping + Working knowledge of electrical, instrumentation, and controls scopes as they relate to treatment plant construction + Ability to read and interpret process flow diagrams, P&IDs, and technical specifications Duties & Responsibilities + Lead estimating efforts for water and wastewater treatment plant projects, from conceptual budgets through hard bids + Review process drawings, structural plans, P&IDs, specifications, and bid documents to fully define scope and execution approach + Develop detailed quantity takeoffs and cost estimates for: + Concrete basins, buildings, and below-grade structures + Mechanical process piping and equipment installation + Yard piping, site civil, and interconnecting utilities + Coordinate pricing and scope with process equipment manufacturers and specialty vendors + Perform risk assessment, constructability reviews, and contract evaluations specific to treatment plant work + Apply historical production rates and project data to labor and equipment planning + Evaluate alternative construction methods and sequencing to optimize cost and schedule + Review and incorporate permitting, environmental compliance, DBE, and regulatory requirements into estimates + Solicit, analyze, and level subcontractor pricing for treatment-specific scopes + Prepare final estimates, pricing strategies, contingencies, and bid packages + Support buyout planning and turnover to operations after award + Serve as a technical estimating resource and mentor within the estimating team Southland Holdings is an Equal Opportunity Employer – M/F/D/V Powered by JazzHR