Project Engineer, Water/Wastewater

Job overview

The Project Engineer, Water/Wastewater role is onsite in Missoula, MT, with a base salary of $80,000–$100,000 per year. Robert Peccia & Associates is an employee-owned civil engineering, planning, and land surveying firm that designs practical solutions for clients and Montana communities. The engineer contributes to municipal water and wastewater projects from planning and design through construction administration. The role supports project delivery by preparing technical designs and documents, conducting analyses, coordinating with clients and regulators, and observing construction.

What you'll do

• Conduct engineering studies and calculations
• prepare plans, specifications, contract documents, drawings, and cost estimates
• perform hydraulic analyses, feasibility assessments, and site evaluations
• prepare master plans, preliminary engineering reports, rate studies, and funding materials
• support regulatory compliance and permitting
• attend project meetings and field reviews
• coordinate with municipal clients and agencies
• conduct construction observation and contract administration, including submittals, RFIs, payment requests, record drawings, and closeout.

What we're looking for

Skills & competencies

project engineer

water/wastewater

missoula mt

robert peccia & associates

civil engineering

municipal projects

water supply

wastewater treatment

hydraulic analysis

construction administration

$80k–$100k/year

employee-owned

flexible schedules

retirement plan

Work arrangement

• Weekend coverage required

Benefits & perks

• Retirement contributions starting on day one
• 100% employee-owned ESOP
• company-wide bonus program
• flexible schedules and paid time over 40 hours per week
• professional development and career-growth opportunities.

Why this role

The posting seeks 4–10 years of relevant experience, a bachelor’s degree in civil engineering or related field, and a Montana PE license or ability to obtain one within six months.

About the employer

Robert Peccia & Associates is hiring for this role. Industry: Engineering Services. Sector: 54.