Intermediate / Senior Infrastructure Planning / Hydraulic Modeler

Overview

Location : Markham, ON, Canada

Date Posted : Jan 20, 2026

Are you ready to take the lead on complex water infrastructure projects that shape the future of our communities? At GEI Consultants, we’re looking for an Intermediate to Senior Water Infrastructure Planning & Hydraulic Modeler who’s driven by purpose and ready to make a lasting impact.

In this role, you’ll collaborate with municipalities and industry leaders to design smart, resilient, and sustainable water, wastewater, and stormwater systems. You will apply your technical expertise, guide strategic project decisions, mentor junior team members, and influence the direction of critical planning initiatives across Ontario and beyond.

If you’re seeking more than just a job — if you want to elevate your career while helping to build the infrastructure of tomorrow — this is the opportunity for you.

Responsibilities

• Lead and support infrastructure planning and asset management projects, including master plans, intensification studies, Class Environmental Assessments (Class EAs), and hydraulic modeling studies.
• Manage technical components of water distribution, wastewater collection, and stormwater servicing projects from concept through delivery.
• Provide project management leadership on studies, coordinating multidisciplinary inputs and ensuring high-quality deliverables.
• Mentor and guide junior staff, contributing to team development and knowledge sharing.
• Serve as a key point of contact with clients, assisting with proposal development, presentations, and ongoing communication.
• Prepare and review high-quality project deliverables including reports, memos, modeling outputs, mapping, and design briefs.
• Contribute to innovative servicing strategies aligned with evolving community and environmental needs.

Minimum Qualifications

About GEI and Benefits

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.

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, Collaborative, 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.

GEI’s Total Rewards Package Includes

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.

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