Water/Wastewater Senior Project Engineer

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Full Time Engineering Bozeman, MT, US

3 days ago Requisition ID: 1075

Salary Range: $93,600.00 To $156,000.00 Annually

Founded in 1973, DJ&A is a multidisciplinary professional services consulting firm with office locations in Montana, Colorado, Washington, New Mexico, and Nevada. Our team of more than 180 professionals works across the country to deliver a diverse range of engineering, environmental surveys, mapping, landscape architecture, and planning projects for federal, state, local, tribal, and private clientele.

DJ&A's Civil Engineering & Design (CE&D) Group is seeking a full-time Senior Project Engineer with a strong background in water and wastewater to join our growing team. The ideal candidate will have at least 10 years of progressive experience leading complex water/wastewater projects. This role requires advanced technical expertise, strong project delivery skills, and the ability to mentor and guide internal project teams from project concept through construction.

Preferred project experience with

• Water and wastewater treatment facilities
• Pump stations and lift stations
• Water distribution and wastewater collection systems
• Engineering analyses, feasibility studies, and cost estimating

Primary Duties and Responsibilities

• Serve as the technical design lead on complex water and wastewater projects.
• Lead project execution strategies to ensure profitability and client satisfaction.
• Work on multiple projects of small to moderate size or portions of major projects by planning and coordinating detailed aspects of engineering work, including engineering analysis, hydraulic modeling, and calculations.
• Well-versed in leading and preparing contract documents for bidding and construction, design documents, plans, specifications, and reports.
• Construction Administration, including coordinating and conducting submittal reviews, reviewing contractor requests for information (RFIs), and site inspections.
• Conduct quality assurance/quality control (QA/QC) reviews of project deliverables.
• Develop engineering reports, feasibility studies, and construction cost estimates.
• Experience navigating local, state and federal regulatory agencies to meet code and permitting requirements.
• Collaborate closely with Project Managers to ensure project success.
• Mentor junior engineers and provide technical guidance to project teams.
• Coordination with external suppliers and subcontractors to quote and furnish materials and services.
• Support business development by contributing technical expertise in proposals and client meetings.

Education and Experience

• Bachelor's degree in Civil or Environmental Engineering from an ABET-accredited program (required).
• Minimum of 10 years of engineering experience with a focus on water and wastewater infrastructure.
• Licensed Professional Engineer (PE) (required).
• Strong knowledge and understanding of wastewater treatment processes and equipment, hydraulics, piping systems, electromechanical systems and instrumentation.
• Proficiency in AutoCAD Civil 3D, hydraulic modeling software (e.g., WaterCAD/WaterGEMS, SewerCAD, EPANET, SWMM), and Microsoft Office Suite.
• Experience working with and coordinating discipline work (civil, mechanical, structural, electrical, instrumentation, HVAC, geotech, survey, etc.) internally and externally.
• Operations experience is a plus.

Physical Requirements

• Ability to sit, stand, and use computer equipment for extended periods.
• Occasional travel to project sites, including outdoor environments and construction areas.
• Ability to lift up to 25 lbs. occasionally.

Salary and Benefits

• $55–$75/hr. depending on experience.
• 401(k) with employer contribution
• Paid time off and holidays
• Professional development support, including licensure and training

Office Location

This position may be based in Missoula, MT; Bozeman, MT; or Denver, CO.

We are proud to be an Equal Opportunity Employer. For more information, please visit the EEO website here.

DJ&A is committed to providing reasonable accommodations for qualified individuals with disabilities and disabled veterans in our job application procedures. If you need assistance or an accommodation due to a disability, you may contact us at View email address on click.appcast.io.