Lead Water Resources Engineer/Sr. Modeler

EXP; Brampton; On-site; CAD 106,000 - 141,000; Full time

Job summary

EXP is seeking a Lead Water Resources Engineer/Sr. Modeler in Brampton, ON. You’ll lead complex hydrologic and hydraulic modeling projects, guiding multidisciplinary teams and delivering sustainable water resources solutions.

The ideal candidate has 10+ years of experience, strong modeling software proficiency (HEC-RAS 2D, HEC-HMS, SWMM, MIKE, Info Works ICM), and a P.Eng. designation or eligibility. You will mentor staff and engage with clients and regulators.

Qualifications

• Bachelor’s or master’s degree in civil engineering, environmental engineering, hydrology, or related field.
• Minimum of 10 years of professional experience in water resources modeling.
• Proficiency in industry-standard modeling software (HEC-RAS 2D, HEC-HMS, SWMM, MIKE, Info Works ICM).
• Strong understanding of hydrologic and hydraulic principles, floodplain management, and stormwater systems.
• Experience with GIS tools (ArcGIS, QGIS) and data integration.
• Excellent written and verbal communication skills.
• Proven ability to manage projects, meet deadlines, and work collaboratively.
• Professional Engineer (P.Eng.) designation or eligibility is preferred.

Responsibilities

• Lead development and application of hydrologic and hydraulic models (e.g., HEC‑RAS, HEC‑HMS, SWMM, MIKE, Info Works).
• Conduct floodplain mapping, risk assessments, and mitigation planning.
• Analyze surface water systems including rivers, streams, and urban drainage networks.
• Interpret and present modeling results to stakeholders, clients, and regulatory agencies.
• Prepare technical reports, proposals, and presentations.
• Mentor junior staff and contribute to technical excellence across projects.
• Collaborate with GIS specialists, engineers, and planners to integrate modeling with spatial analysis and infrastructure design.
• Stay current with industry trends, regulatory changes, and emerging technologies.
• Proposal writing and support the team during proposals.

Skills

Hydrologic modeling

Hydraulic modeling

GIS analysis

Project management

Education

Bachelor’s or Master’s degree in civil/environmental hydrology

P.Eng. designation or eligibility preferred

Tools

HEC-RAS 2D

HEC-HMS

SWMM

MIKE

Info Works ICM

ArcGIS

QGIS

Job description

Lead Water Resources Engineer/Sr. Modeler

Brampton, ON

At EXP, we’re driven to provide innovative solutions for the world’s built and natural environments. As a team of engineers, architects, designers, scientists, creators, and a community of professionals, we bring diverse and talented people together to solve the world’s most complex challenges. Here, you join a team that leverages differences, harnesses their entrepreneurial spirit in an employee‑owned company, that believes diversity is what gives us strength, seeks sustainable results and shares ambitions for each other, our clients, and the communities we are part of and serve. To be a part of EXP means to have your own experience, while staying connected to a global network of professionals, who believe we are a part of something bigger. Together, we are EXP.

Are you ready to design your future? Be our next Lead Water Resources Engineer/Sr. Modeler!

Job Description

We are seeking a highly experienced and motivated Senior Water Resources Engineer/Modeler to lead and support complex hydrologic and hydraulic modeling projects. The ideal candidate will have over 10 years of experience in surface water modeling, floodplain analysis, and water resources planning. This role involves technical leadership, project management, and collaboration with multidisciplinary teams to deliver innovative and sustainable solutions and will be working in our Infrastructure Group.

What a day at EXP has in store for you

• Lead the development and application of hydrologic and hydraulic models (e.g., HEC‑RAS, HEC‑HMS, SWMM, MIKE, Info Works).
• Conduct floodplain mapping, risk assessments, and mitigation planning.
• Analyze surface water systems including rivers, streams, and urban drainage networks.
• Interpret and present modeling results to stakeholders, clients, and regulatory agencies.
• Prepare technical reports, proposals, and presentations.
• Mentor junior staff and contribute to technical excellence across projects.
• Collaborate with GIS specialists, engineers, and planners to integrate modeling with spatial analysis and infrastructure design.
• Stay current with industry trends, regulatory changes, and emerging technologies.
• Proposal writing and support the team during proposals.

What Your Experience Looks Like

• Bachelor’s or master’s degree in civil engineering, Environmental Engineering, Hydrology, or a related field.
• Minimum of 10 years of professional experience in water resources modeling.
• Proficiency in industry‑standard modeling software (e.g., HEC‑RAS 2D, HEC‑HMS, SWMM, MIKE, Info Works ICM).
• Strong understanding of hydrologic and hydraulic principles, floodplain management, and stormwater systems.
• Experience with GIS tools (ArcGIS, QGIS) and data integration.
• Excellent written and verbal communication skills.
• Proven ability to manage projects, meet deadlines, and work collaboratively.
• Professional Engineer (P.Eng.) designation or eligibility is preferred.

Preferred Skills

• Familiarity with provincial and federal water management regulations.
• Experience working with municipalities, conservation authorities, or government agencies.
• Experience with climate change impact assessments and resiliency planning.
• Knowledge of scripting or automation tools (Python, MATLAB) for model enhancement.

This job posting is for an existing position vacancy within our organization.

The salary range for this role is between $106.4K - $141.1K. The actual compensation packages are based on several factors that are unique to each candidate, including but not limited to skill set, depth of experience, certifications, and specific work location.

EXP subscribes to the Workplace Equity Program. Applications from women, members of visible minorities, Indigenous peoples and persons with disabilities are encouraged. Persons with disabilities can obtain accommodation for the selection process by contacting us at the following email address: [e-mail]

About Us

Our story

With a mission to understand, innovate, partner and deliver, EXP provides engineering, architecture, design and consulting services to the world’s built and natural environments. Our heritage dates back to 1906, when the earliest of EXP’s predecessor companies started its engineering infrastructure practice. Today, thousands of creative professionals across EXP work together to deliver extraordinary experiences year after year.

What Makes Us Different

The passion, enthusiasm, diversity and industry‑leading capabilities of our employees make us who we are. We’re committed to providing a challenging work environment that cultivates career growth, encourages creativity and rewards excellence.

Find out more about life at EXP by visiting www.exp.com .