Description

Your role at GEI.

Join Our Growing Legacy at GEI Consultants Canada Ltd. (GEI)

Are you ready to take the next step in your water resources career and make a meaningful impact on the communities we serve?

GEI Consultants Canada Ltd. is seeking a Senior Water Resources Engineer to join our growing Land Development practice in Markham, Ontario. This is an exciting opportunity for an experienced professional with 5–10+ years of relevant consulting and engineering experience who is ready to take on greater technical leadership, project responsibility, and mentorship within a collaborative and growing team.

In this role, you will lead and contribute to a diverse portfolio of water resources and land development projects for residential, industrial, commercial, and municipal clients. You will apply your technical expertise across hydrologic and hydraulic modelling, stormwater management, water balance, natural channel systems, and low-impact development while helping guide projects from early-stage due diligence and planning through detailed design and agency approvals.

Beyond technical delivery, you will have the opportunity to mentor junior engineers and EITs, collaborate with multidisciplinary teams, strengthen client relationships, and contribute to the continued growth of GEI's Water Resources practice.

Why Join GEI?

- Diverse and Impactful Projects: Work on Subwatershed Studies, Master Environmental Servicing Plans, Functional Servicing Reports, Stormwater Management Reports, detailed SWM facility designs, feature-based water balance and continuous modelling, natural channel realignment designs, and innovative low-impact development solutions.
- Technical Leadership: Take ownership of complex water resources assignments and provide technical direction throughout planning, design, approval, and implementation.
- Mentorship and Team Development: Mentor and support junior engineers and EITs while helping build technical capability across the Water Resources team.
- Multidisciplinary Collaboration: Work alongside experienced professionals across land development, municipal infrastructure, environmental, geotechnical, transportation, and related disciplines.
- Meaningful Community Impact: Help shape sustainable, resilient communities through practical and innovative water resources solutions.

Essential Responsibilities & Duties As a Senior Water Resources Engineer, you will:

- Lead and deliver water resources components of complex land development and municipal infrastructure projects, working closely with senior management and multidisciplinary project teams.
- Undertake hydrologic and hydraulic analyses throughout all phases of project development, from conceptual servicing and due diligence through preliminary and detailed design.
- Develop, review, and apply hydrologic and hydraulic models to support stormwater management, floodplain analysis, water balance assessments, natural channel design, and infrastructure planning.
- Lead the planning and detailed design of stormwater management facilities, drainage systems, low-impact development measures, and related water resources infrastructure.
- Complete and oversee feature-based water balance assessments and continuous hydrologic modelling.
- Support natural channel assessments, realignment designs, and hydraulic analyses,



including 1D and 2D modelling where applicable.
- Prepare and review technical memoranda, Functional Servicing Reports, Stormwater Management Reports, Master Environmental Servicing Plans, Subwatershed Studies, design briefs, construction drawings, specifications, and supporting technical documentation.
- Coordinate with municipalities, conservation authorities, review agencies, clients, developers, and other stakeholders to advance projects through the approval process.
- Provide technical guidance, quality control, and senior-level review of analyses, models, designs, drawings, and reports prepared by project teams.
- Mentor and develop junior engineers and EITs by providing technical guidance, coaching, and opportunities for cross-training and professional growth.
- Collaborate with multidisciplinary teams to integrate water resources requirements into broader land development and infrastructure designs.
- Support project management activities, including scope development, budgets, schedules, resource planning, deliverables, and client communications.
- Contribute to proposals, business development initiatives, client relationships, and the continued growth of GEI's Water Resources practice.

Minimum Qualifications

What We're Looking For

- Bachelor's degree in Civil Engineering, Water Resources Engineering, Environmental Engineering, or a related engineering discipline.
- 5–10+ years of progressive professional experience in water resources engineering, preferably within a consulting environment with significant exposure to land development and/or municipal infrastructure projects.
- Licensed Professional Engineer (P.Eng.) in Ontario, or eligible for registration with Professional Engineers Ontario.
- Strong knowledge of hydrology, hydraulics, stormwater management, drainage design, water balance, and applicable Ontario design standards and approval requirements.
- Demonstrated experience with industry-standard hydrologic and hydraulic modelling software such as PCSWMM, Visual OTTHYMO, and HEC-RAS. Experience with HEC-RAS 2D hydraulic modelling is considered an asset.

- Proficiency in dual drainage modelling in PCSWMM is required.
- Baseline proficiency in single event modelling in Visual OTTHYMO is expected.
- Experience completing feature-based water balances using continuous event modelling in Visual OTTHYMO is considered an asset.
- Experience with Civil 3D and familiarity with ArcGIS/GIS applications is considered an asset.
- Strong understanding of water resources requirements associated with greenfield development, intensification, redevelopment, and municipal infrastructure projects.
- Demonstrated ability to prepare clear, concise, and technically sound engineering reports, memoranda, calculations, specifications, and approval submissions.
- Ability to provide technical direction, mentor junior staff, coordinate multidisciplinary assignments, and manage competing project priorities.




- Solid interpersonal and communication skills with the ability to work effectively with clients, municipalities, conservation authorities, regulatory agencies, and internal project teams.
- A motivated and collaborative professional with a strong work ethic, sound engineering judgment, and commitment to technical excellence and continuous improvement.
- Physical and environmental requirements for this position are available upon request.

We are GEI. Some of the world’s most pressing problems – from climate change to sustainable development, to critical infrastructure and the future of our energy supply – need our brightest and diverse minds working together to create safer, more resilient communities for tomorrow.

We are technical experts, collaborators, and entrepreneurs who draw from diverse backgrounds to solve our clients’ most complex challenges.

With several offices across North America, we offer a range of engineering, science, and technical consulting services. Our range of expertise, project types, and culture make us the choice for top talent in the AEC industry. See all our office locations here.

In 2023, GEI merged with GM BluePlan, an Ontario-based engineering, management, and technology consulting company. The merger adds GM BluePlan’s nationally recognized expertise in asset management and infrastructure planning to the GEI family, furthering our growth and expansion in Canada.

Employee-owned. Employee-focused.

As an employee-owned company, our employees support our flat leadership structure, have a say in how our business operates and benefit from our financial success. We are committed to employee growth with career development opportunities, competitive total rewards, a well-being program, flexible work arrangements and more. Our company culture is driven by our 4 Cs – we are Client-Centered, Curious, Cooperative, and Community Minded – which support our focus on sustainability, safety, diversity, equity and inclusion.

Get to know us better by visiting GEI’s career site here.

GEI’s Total Rewards Package Includes

- Market-Competitive Compensation, including Eligibility for an Annual Performance Bonus
- Comprehensive Benefits Program including Health Care and Wellness Spending Accounts
- Hybrid Work Schedules and Cell Phone Stipends
- GEI University (GEIU) with Continuing Education Assistance and Tuition Reimbursement
- Connecting Conversation Program with a Focus on Professional Development and Opportunities for Advancement
- Support and Financial Rewards for Publication Awards, Professional Dues, and Professional Licenses
- Paid Holidays and Generous Paid Time Off Program
- Rewards and Recognition
- RRSP Program
- Opportunity to be an Owner and Shareholder
- A Vibrant Culture that is Focused on Partnership, Sustainability, Giving Back to Our Communities and Diversity, Equity and Inclusion
- And More…

GEI is an equal opportunity employer committed to diversity and inclusion. We consider all qualified applicants for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, Aboriginal/Indigenous status or any other factors considered discriminatory. If you require an accommodation during the recruitment process, we will work with you to meet your needs.

📌 Senior Water Resources Engineer/ Project Manager Water Resources (Markham)
🏢 GEI Consultants
📍 Markham