Senior Hydrogeologist

Your role at GEI.

As part of GEI’s continued growth across the Ontario market, we are seeking a high-performing hydrogeology professional who brings both technical leadership and strong business development capabilities.

This role is ideal for a professional who wants to shape project delivery, strengthen client relationships, and contribute directly to business growth while collaborating with multidisciplinary teams across the organization.

You will work alongside technical leaders in hydrogeology, environmental services, geotechnical engineering, ecology, and water resources, delivering solutions for both public and private sector clients in a variety of project contexts, including planning, design, monitoring and mitigation plans, and approvals.

Beyond technical delivery, the successful candidate will play a key role in expanding GEI’s market presence, identifying opportunities, supporting strategic pursuits, and helping grow long-term client partnerships across Ontario.

Essential Responsibilities & Duties

Technical Leadership

• Provide direction and mentorship to junior staff conducting hydrogeological field investigations including soil and groundwater sampling, well monitoring, in-situ permeability testing, infiltration testing, and groundwater monitoring programs.
• Lead the preparation of technical reports, analyses, impact assessments, and studies in accordance with federal, provincial, and municipal regulations, including:
• Water balance studies
• D-5-4 and D-5-5 studies
• Source protection policy applicability reviews
• Construction dewatering studies
• Water supply investigations and analyses
• Peer reviews
• PTTW and EASR applications
• Groundwater monitoring programs
• Support hydrogeological analysis and modelling for site and feature-based water balance assessments in collaboration with Water Resources Engineers.
• Work collaboratively with geotechnical, environmental, ecological, and municipal engineering teams on multidisciplinary projects.

Business Development & Client Growth

• Actively contribute to business development initiatives by identifying new opportunities and strengthening existing client relationships.
• Support proposal preparation, scope development, cost estimates, and work planning for hydrogeological, environmental and interdisciplinary projects.
• Participate in client meetings, project pursuits, and strategic growth initiatives within the Ontario market.
• Help expand GEI’s hydrogeology practice by developing new client relationships and identifying emerging project opportunities.
• Contribute to regional marketing efforts and technical thought leadership, positioning GEI as a trusted advisor in hydrogeological and environmental services.

Project Delivery & Collaboration

• Coordinate with internal teams to ensure high-quality project delivery and technical excellence.
• Promote and maintain health and safety best practices in all aspects of field and office work.
• Participate in field investigations when required, depending on project scope and experience level.

Minimum Qualifications

• Bachelor’s or Master’s degree in Hydrogeology, Environmental Engineering, Geoscience, or related field.
• 8+ years of hydrogeological experience, preferably within Southern Ontario.
• Professional designation as P.Eng. or P.Geo. in Ontario.
• Demonstrated experience in hydrogeological investigations, groundwater monitoring, and hydrogeological analysis (e.g., conceptual model development, dewatering/sustainable yield estimates, zone of influence estimates) and impact assessment.
• Experience with hydrogeological modelling for site water balance, wetland feature-based water balance studies, and numerical groundwater flow modeling is considered an asset.
• Familiarity with Ontario regulatory frameworks including OWRA, O. Reg. 387/04, O. Reg. 63/16, Conservation Authority guidelines, the “Reasonable Use Concept”, and typical municipal requirements for hydrogeological studies in the Greater Golden Horseshoe.
• Familiarity with the role of hydrogeology in, and general project processes of, development approvals applications, infrastructure design and construction, and Environmental Impact Study/Environmental Implementation Reports.
• Experience with groundwater testing, pumping tests, single-well response tests, infiltration testing, monitoring programs, and mitigation planning.
• Experience supporting proposals, client pursuits, and business development initiatives within consulting environments.
• Strong written and verbal communication skills and proficiency with technical analysis software and MS Office.
• Valid driver’s license and access to a personal vehicle.
• 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, 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 here.

GEI’s Total Rewards Package Includes

• Market-Competitive Compensation, including Eligibility for an Annual Performance Bonus
• Pay Range For This Position: CA$95,000.00 - $135,000.00/ year
• 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.

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.