Senior Water Resources Engineer

WSP in Canada; Toronto; On-site; CAD 95,000 - 131,000; Full time

Job summary

WSP is seeking a Senior Water Resources Engineer in Mississauga, Ontario, to shape resilient water systems across Canada and internationally. You will lead hydrologic and hydraulic analyses, mentor junior consultants, and partner with senior specialists on multidisciplinary projects, delivering practical solutions.

Requires a P.Eng. in Ontario or in progress, 8+ years in water resources consulting, and proficiency with HEC-HMS, HEC-RAS, PCSWMM, AutoCAD, GIS, and related tools.

Qualifications

• Bachelor’s degree in Civil or Environmental Engineering, or equivalent.
• Eight+ years in water resources consulting with modelling experience.
• Ontario P.Eng or in progress towards designation.
• Experience with surface-water baseline/impact assessments and design.
• Proficiency with HEC-HMS, HEC-RAS, PCSWMM and GIS.

Responsibilities

• Lead water resources assignments including hydrologic and hydraulic analyses.
• Develop designs for water diversions, stormwater systems, channels and spillways.
• Apply modelling to baseline studies, impact assessments, and permitting.
• Manage projects and coordinate multidisciplinary teams for regional and international clients.
• Mentor junior consultants and share knowledge within a collaborative culture.
• Plan surface-water monitoring programs and interpret data for decisions.

Skills

HEC-HMS

HEC-RAS

PCSWMM

CORMIX

MIKE 3

AutoCAD

GIS

Microsoft Office

GoldSim

Driving licence

Education

Bachelor’s degree in Civil or Environmental Engineering

Master’s degree or higher asset

Tools

AutoCAD

GIS

HEC-HMS

HEC-RAS

PCSWMM

MIKE 3

CORMIX

Microsoft Office

Job description

Job Description

What if you could redefine what’s possible? With us, you can.

With us, you can. You want Purpose. Growth. Opportunity. People who get it.

We are the home of ambitious, passionate, and innovative world shapers.

With an unmatched breadth and depth of engineering, advisory and science‑based expertise, our global minds unite to power local solutions.

We are pathfinders and impact makers.

We are Visioneers.

We are WSP.

The Opportunity

Shape the World Around You

As a Senior Water Resources Engineer, you will shape resilient water systems and help communities and clients make informed decisions in a changing environment. Join our Surface Water Team in Mississauga, Ontario, where you will guide junior consultants, partner with senior specialists, and bring practical water resources solutions to complex multidisciplinary projects across Canada and internationally.

Your Impact

• Lead water resources assignments spanning water balances, hydrologic and hydraulic assessments, floodplain mapping, dam-breach analysis, river engineering, and mine-water applications.
• Develop technical solutions and designs for water diversions, control structures, stormwater systems, channels, culverts, weirs, and spillways.
• Apply hydrodynamic and water-quality modelling to baseline studies, impact assessments, options evaluations, and permitting deliverables.
• Manage projects and coordinate multidisciplinary teams to deliver clear, practical outcomes for clients locally, regionally, and internationally.
• Guide junior consultants, share technical knowledge, and contribute to a collaborative culture of learning and quality.
• Partner with senior engineers and specialists across Canada and globally to solve complex surface-water challenges.
• Plan and interpret surface-water quantity and quality monitoring programs, including streamflow evaluations and field data.
• Contribute to technical reports, approvals, and recommendations that support resilient infrastructure and responsible environmental decisions.

The Skills That Set You Apart

• A Bachelor’s degree in Civil or Environmental Engineering, or equivalent education; a master’s degree or higher is an asset.
• Eight or more years of demonstrated water resources consulting experience, including hydrologic, hydraulic, hydrodynamic, or water-quality modelling.
• A valid professional engineering designation in Ontario, or active progress toward designation.
• Experience preparing surface-water baseline and impact assessments, permit and approval deliverables, and water-management designs.
• Hands‑on proficiency with relevant tools such as HEC-HMS, HEC-RAS, PCSWMM, CORMIX, MIKE 3, AutoCAD, GIS, and Microsoft Office; GoldSim experience is an asset.
• Experience analysing and designing stormwater management systems and hydraulic structures; exposure to mine-water management or streamflow monitoring is an asset.
• Excellent technical writing and communication skills, with the ability to learn new systems and deliver effectively in a fast‑paced consulting environment.
• An unrestricted Ontario Class G driver’s licence, a clean driver’s abstract, and access to a vehicle.

Why Choose WSP?

Why Choose WSP? We exist to shape communities to advance humanity. The brightest engineers, advisors and scientists from across the globe call WSP home.

• Proudly Canadian – we are a Top 100 Employer in Canada for 2026.
• A global community of brilliant minds – your next idea, mentor, or opportunity is always within reach.
• Limitless opportunities start here. Whether it’s across the country or around the globe, we help you tailor your role to match your ambition — because your growth drives ours.
• Flexible work, real balance – we recognize the importance of balance in our lives and encourage you to prioritize the balance in yours.

#WeAreWSP

Compensation

AB, BC, NT, NU, SK & YT: $104,100 - $138,000

MB & ON: $95,000 - $130,800

NB, NL, NS, PE & QC: $94,100 - $124,900

Disclosure

The final salary awarded for this role may vary from the above range based on several factors including, but not limited to, relevant education, qualifications, certifications, experience, skills, seniority, geographic location, performance, and business or organizational needs. The wage range provided in this job posting may be subject to change for business purposes.

About Us

At WSP, we exist to shape communities to advance humanity.

It’s why we bring people together who are wired to solve complex challenges - engineers, scientists, advisors, and technical experts who are driven by a common passion - to redefine what’s possible and shape what comes next. We are Visioneers.

As one of the world’s leading professional services firms, we partner with clients across transportation, infrastructure, environment, buildings, energy, water, mining and metals. We pair deep local knowledge with global insights to pioneer solutions designed to leave a lasting, positive impact.

At WSP, you’ll join a community of brilliant minds that push boundaries every day - applying deep expertise and fuelling innovation to help create a more connected and resilient future. Here, your ideas are valued, your growth is supported, and you are encouraged to bring your authentic self to work. We empower our people to collaborate across disciplines, challenge the status quo, and shape a career with purpose.

Join us.

Please Note:

Health and Safety is a core paramount value of WSP. Given the importance of keeping one another safe it is expected that you comply with our Health, Safety & Environment (HSE) policy at all times as well as client HSE policies when working at client locations. Full details here .

Some safety-sensitive positions involve fieldwork and may include work in a variety of environmental conditions, such as remote or isolated areas, working alone, and in inclement weather (within safe and reasonable limits).

WSP welcomes and encourages applications from people with disabilities. Accommodations are available on request for candidates taking part in all aspects of the selection process.

WSP is committed to the principles of employment equity. Only the candidates selected will be contacted.

WSP does not accept unsolicited resumes from agencies. Full details here .