Senior Wastewater Engineer — Lead Design & Delivery (Hybrid)

Mott MacDonald Group; New York (NY); Hybrid; USD 143,000 - 186,000; Full time

Benefits offered by this job

Medical, dental, vision

401(k) with matching

Paid time off

Job summary

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

The role requires PE licensure and 10–15 years of municipal wastewater experience, with ability to lead technical teams, manage budgets, and build client relationships.

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 New York, New Jersey, Pennsylvania and Massachusetts.
• 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 management

Mentoring junior staff

Travel to sites

PE license

Education

Bachelor's degree in civil, environmental, chemical or related engineering

Job description

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

The role requires PE licensure and 10–15 years of municipal wastewater experience, with ability to lead technical teams, manage budgets, and build client relationships.