Principal Engineer Water

At Mott Mac Donald, 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. If you share that vision, even if you don’t meet every requirement listed, we’d still love to hear from you.

We value potential and diverse perspectives as much as experience. Let’s explore how we can support your growth and help you take the next step in your career, while contributing to an exciting new chapter for Mott Mac Donald in North America.

As a principal engineer, with experience in drinking water quality and treatment process evaluation, assessment and design for water infrastructure projects, you will serve as technical lead for drinking water treatment process evaluation, planning studies and designs for projects that address treatment deficiencies, new regulations and aging infrastructure for both surface water and groundwater sources of supply.  You will also provide expertise in the troubleshooting and optimization of treatment processes and in addressing distribution system water quality issues.

The position will play a critical role in Mott Mac Donald’s Water Sector growth. Demonstrated knowledge of water treatment processes is required as well as experience working with water utilities. Your range of drinking water treatment process experience may include but not be limited to the following:

Water treatment chemistry, including coagulation, oxidation and disinfection

Conventional and high-rate clarification technologies such as DAF, ballasted flocculation, plate settlers, tube settlers and traditional sedimentation

Conventional gravity filtration facilities, including dual media filtration, GAC filtration and slow sand filtration

Membrane filtration technologies, including UF, MF, NF and RO systems

Ion exchange

Carbon adsorption

Disinfection methods, including both chemical and UV processes, and disinfection byproduct reduction strategies

Advanced oxidation techniques such as UV AOP, Ozone and Ozone AOPResiduals treatment approaches, such as thickening and dewatering

Distribution system water quality troubleshooting to address issues such as disinfection byproducts, nitrification, or lead and copper corrosion.

Key responsibilities:

Provide technical leadership for drinking water treatment  and distribution system water quality projects, using appropriate engineering methodology to give assurance that intended outcomes are identified and achieved.

Lead the preparation of quality deliverables for drinking water treatment facility and distribution system water quality assessment, identification of alternatives, bench and pilot scale tests, and preliminary and detailed design.

Manage and coordinate multiple projects as part of a multidisciplinary design approach.

Provide specialist advice on the interpretation of treatment process water quality data, resolving complex or contentious technical queries and issues and enabling others to take appropriate actions.

Lead, mentor, and support the technical development of junior staff.

Manage water treatment process and water quality evaluations; provide stakeholders with accurate and…