Senior Wastewater Engineer – Lead Municipal Water Projects

Water Otter Job Board; Boston (MA); Hybrid; USD 149,000 - 182,000; Full time

Benefits offered by this job

Bonuses

Comprehensive benefits package

401(k) with company matching

Paid time off

Job summary

Mott MacDonald seeks a Senior Wastewater Engineer to strengthen our regional water team across New York, New Jersey, Pennsylvania and Massachusetts. You will serve as a senior technical contributor and project lead, delivering facilities and upgrades from studies through construction.

You’ll mentor staff, coordinate multidisciplinary work, and build client relationships while traveling to project sites in the region. This role offers a hybrid, in-office model and a comprehensive benefits package.

Qualifications

• Bachelor’s degree in civil, environmental, chemical or related engineering.
• Typically, 10–15 years of progressively responsible wastewater engineering experience.
• Strong municipal wastewater treatment process design experience.
• Working knowledge of wastewater collection, conveyance and pumping systems.
• Experience delivering projects from planning and design through construction.
• Demonstrated ability to lead technical teams and communicate effectively with clients and treatment plant operators.
• Professional Engineer license in at least one US jurisdiction, with the ability to obtain licensure in NY, NJ, PA and MA.
• Ability to travel to clients and project sites throughout the region.

Responsibilities

• Lead wastewater treatment planning, process evaluations and facility designs.
• Develop design criteria, calculations, hydraulic profiles, mass balances, equipment sizing and facility layouts.
• Design and evaluate headworks, primary and biological treatment, nutrient removal, clarification, disinfection, biosolids management, chemical feed systems and ancillary systems.
• Support sanitary sewer, force main, pump station, inflow and infiltration, and wet‑weather management projects.
• Prepare and review technical reports, drawings, specifications, cost estimates and bid documents.
• Manage technical tasks, project scope, schedules, budgets and multidisciplinary coordination.
• Provide construction‑phase support, including submittal reviews, RFIs, field coordination, commissioning and operational troubleshooting.
• Mentor junior staff and provide technical quality assurance.
• Build client relationships and support proposals, interviews and regional business development.

Skills

Leadership

Client communication

Project delivery

Mentoring

Team coordination

Travel readiness

Education

Bachelor's degree in civil/environmental/chemical engineering

Job description

Mott MacDonald seeks a Senior Wastewater Engineer to strengthen our regional water team across New York, New Jersey, Pennsylvania and Massachusetts. You will serve as a senior technical contributor and project lead, delivering facilities and upgrades from studies through construction.

You’ll mentor staff, coordinate multidisciplinary work, and build client relationships while traveling to project sites in the region. This role offers a hybrid, in-office model and a comprehensive benefits package.