Tatham EngineeringVerified Job Source

Senior Hydrogeologist

Barrie, ON
Hybrid
Posted Sep 3, 2026
1 position

$90,000–$140,000 / year

Opens an external site

Employment type: Full-time
Experience level: Lead · 10+ years
Minimum education: Bachelor’s degree
Posting language: English
Working hours: 40 hours per week

Job summary

The Senior Hydrogeologist will supervise and coordinate hydrogeological field programs, including drilling and monitoring well installations. They will also design and complete hydrogeological assessments to support land development and municipal projects while ensuring compliance with environmental legislation.

Job details

Are you an experienced engineering professional eager to advance your career with a dedicated, community-focused, award-winning company? Tatham Engineering offers the opportunity to join a supportive team that values mentorship and provides challenging, rewarding work. Put your knowledge and experience to meaningful use in an environment where collaboration and growth are encouraged. We are seeking to fill a new role of Senior Hydrogeologist to work in our Hydrogeology and Geoenvironmental group in our Collingwood, Barrie, Guelph or Ottawa office. This position will support our hydrogeology team that works within the aggregate, municipal and land development sectors. This role would become involved with primarily physical hydrogeological investigations to support multi-disciplinary projects in a variety of fields, including aggregate resource monitoring and compliance, construction dewatering assessments and permitting, wastewater treatment/water supply, and supporting Tatham’s municipal and land development projects in the areas we service across Ontario. Key Responsibilities: Responsible for supervision and coordination of hydrogeological field programs including borehole drilling and monitoring well installation programs, test pitting, borehole permeability testing, pumping tests, Guelph permeameter testing, collection of surface water and groundwater samples and levels, and collection of surface water flows Design and complete hydrogeological assessments in support of land development/municipal projects and for various approvals, including Permit To Take Water and the Environmental Activity and Sector Registry, and MECP D-5-5 / D-5-4 assessments. Analyze groundwater, surface water and soil chemistry data Interpret hydrogeological data to support conceptual groundwater model development Assist with the completion of water balance and water budget analysis and assessments Complete Reasonable Use assessment using mass balance and nutrient dilution calculations Understand and implement environmental policies and practices and ensure compliance with environmental legislation Collect and evaluate field measurements and record data in clear and concise field notes Office activities may include data tabulation and presentation of field sampling results, including report tables and appendices, support for work plan preparation, interpretation of analytical results, preparation of investigation reports and other project documents Follow company safety standards, participate in safety training, prepare and implement site safety plans Interact with client, contractor or subcontractor representatives on project sites Work collaboratively with members of the Water Resources and Hydrogeology Group and team members from other internal business lines and offices, as well as external sub-contractors/consultants, and clients Work with other disciplines within Tatham Engineering including but not limited to Land Development, Water/Wastewater, Municipal and Transportation Key Position Requirements: Undergraduate Degree (B.Sc.) in Geoscience or Civil/Environmental Engineering with a focus on Hydrogeology, Masters Degree (M.S.c) in Hydrogeology or related discipline considered an asset Eligible to register as a P.Geo or P.Eng. Minimum of 10 years consulting experience in hydrogeology, geoscience or related discipline Team-oriented, self-motivated and safety conscious Ability to work independently in both field and office environments with strong attention to detail and organizational and problem-solving skills Strong technical, verbal, and written communication skills (English) are required Competency with MS Office suite of applications Technical report and/or document writing experience an asset Some experience with ArcGIS considered an asset Must be willing to travel (mostly within central Ontario, but with occasional southern or remote northern Ontario projects) Valid Class G Ontario Driver’s License and vehicle appropriate for carrying field equipment How to Apply Click the “Apply Now” button below and follow the instructions to create your account. Please include your resume and contact information. We thank all candidates for applying, however only those selected for an interview will be contacted. Tatham Engineering does not use artificial intelligence in the hiring process. All applications are reviewed by Human Resources and the appropriate hiring managers. Why Tatham? At Tatham, our key values are reflected in everything we do. We aim to be the engineering consulting firm of choice by upholding our core values: Service, Communication, Teamwork, Relationships & Community. Our company has experienced significant growth by putting these values into action. What We Offer Competitive compensation, benefits, health spending account, RRSP matching and profit sharing Flexible work arrangements and work-life balance Paid volunteer opportunities Vacation starting at 3 weeks minimum for all positions – prorated in the first year Challenging and rewarding work on notable projects Professional development, training, mentorship program and career progression opportunities Reimbursement for annual professional dues Collaborative and engaging workplace environment Regular office/team socials and recreational outings, including an activity allowance for approved events Shareholder opportunities Company Information Tatham Engineering is a Canadian employee-owned, consulting engineering firm that specializes in Coastal, Land Development, Municipal, Structural (Buildings and Bridges), Transportation, Water Resources, Water & Wastewater, Electrical and Mechanical engineering, and provides specialized services in Air & Noise, Climate Resilience and Hydrogeology. The firm was founded in Collingwood, Ontario, in 1988 and currently employs over 200 staff with branch offices in Barrie, Bracebridge, Guelph, Orillia and Ottawa. Tatham is proud to be recognized as one of Southwestern Ontario’s Top Employers of 2026 and Canada’s Top Small & Medium Employers of 2026! Diversity, Inclusion, and Accommodations Tatham Engineering is an equal opportunity employer that values diversity in the workplace and welcomes applications from all qualified candidates. We are committed to ensuring the selection process is inclusive, accessible, and barrier-free. If you require accommodation, please contact Human Resources at hr@tathameng.com and the request will be addressed confidentially. Expected Hiring Range for This Position $90,000 to $140,000 Compensation will reflect the unique skills and experience each candidate brings to the role. The posted range serves as a general guideline, and final offers may vary.

What you’ll do

Requirements

Candidates must hold an undergraduate degree in Geoscience or Engineering, with a Master's degree considered an asset. A minimum of 10 years of consulting experience in hydrogeology and eligibility for P.Geo or P.Eng registration are required.

Benefits

• Competitive compensation • Health spending account • RRSP matching • Profit sharing • Flexible work arrangements • Paid volunteer opportunities • Vacation starting at 3 weeks • Professional development • Mentorship program • Reimbursement for annual professional dues • Activity allowance