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Project Manager Water/Stormwater

Mott MacDonald
Philadelphia, United Statesfull_timeVerifiedPosted 29 Oct 2025

About the role

At Mott MacDonald, we trust our brilliant people to do brilliant things in engineering, management, and development services, supporting multisector project work in over 150 countries. As one of the largest employee-owned companies in the world, we pride ourselves on our ability to deliver exceptional outcomes through our network of 20,000+ talented consultants. With sustainability and innovation at the heart of all our sectors in North America, including, Buildings, Energy, Transportation, and Water.

 

We believe in empowering our people to excel, learn, and grow, offering diverse opportunities to contribute to career-defining work. Join us and be part of a collaborative environment where your ambitions are united with ours, and you can truly shape your story.

 

Our Philadelphia office is seeking a Project Manager with experience in water/stormwater/wastewater treatment design. Our Philadelphia office supports a broad spectrum of public and private clients. In this position, you will work alongside other professional engineers on water, wastewater, and/or green stormwater projects in the Pennsylvania, Maryland, Washington DC, and Virginia areas. We are looking for people who can function as role models and ambassadors for Mott MacDonald, articulating and representing the brand, vision, and value proposition internally and externally. 

 

Our team supports some of the most ambitious infrastructure projects in North America, including:

  • PWD Northern Liberties Flood Relief Project (NLFRP) – Multi-phase flood relief program for the Northern Liberties neighborhood, involving design and construction of ~5,000 feet of varied-size concrete box sewer (up to 11’x12’), equalization/junction chambers, and control structures to regulate dry and wet weather flows.
  • PAWC Lake Scranton Transmission Main Rehabilitation - Evaluation and rehabilitation of a leaking 48-inch transmission main within a 4,300-foot mountain tunnel. Recommended and delivered sliplining with a 42-inch HDPE pipe, restoring reliable service, reducing operational risk, and minimizing community and environmental impacts

Role purpose: 

  • This position will lead and manage our portfolio of water, wastewater, and green stormwater infrastructure projects across the Mid-Atlantic region, supporting our expanding service offerings.
  • The primary purpose of this role is to provide project management and technical leadership, overseeing the development of design drawings and specifications, and ensuring successful project delivery from planning through construction.
  • This experienced position focuses on managing multidisciplinary teams, maintaining client relationships, and delivering high-quality, cost-effective solutions for complex infrastructure projects.

 

Responsibilities of the position will include but not be limited to the following:

  • Manage and execute a combination of water, wastewater, and green stormwater infrastructure projects. Projects will a variety of planning, design, and construction phase work.
  • Manage multidisciplinary design teams of planning and/or design engineering projects, supervising and coordinating several assignments simultaneously.
  • Establish and periodically review scope, schedule and budgets for projects and reviewing progress against a baseline.

 

We invite applications from candidates with the following experience:

  • B.S. degree in civil, environmental, or mechanical engineering is required; M.S. degree in civil or environmental engineering a plus
  • 8+ years of progressive experience in water, wastewater, and/or stormwater-related projects
  • PE or ability to obtain within one year in the Commonwealth of Pennsylvania is required
  • A successful candidate will be a self-starter with ability to lead and manage people and projects
  • Strong written and verbal communications skills with demonstrated ability to conduct effective presentations and prepare written reports and documents
  • Strong technical skills and technical leadership experience, preferably including water or wastewater linear infrastructure, AutoCAD Civil3D, and green stormwater design
  • At least one year managing projects, including management of project budgets, schedules, staff, and client interface

 

Our teams are comprised of bright and enthusiastic people who wish to make a difference to the world that we live in. If you share that vision and don’t have all the experience outlined in this posting, we still w

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Company

Mott MacDonald

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