Senior Hydrogeologist

Mississauga, ON
On-site
Posted Oct 29, 2026
1 position

$90,000–$130,000 / 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 lead technical teams, manage complex hydrogeological projects, and foster client relationships to support business growth in the GTA. Responsibilities include preparing technical reports, conducting environmental investigations, and providing expert guidance on construction dewatering and site assessments.

Job details

GHD is a global professional services company that leads through engineering, architecture, and construction expertise. We are an employee-owned company with over 11,000 diverse and skilled individuals across more than 200 offices spanning five continents. Due to continued growth, GHD is currently seeking a positive and energetic Senior Hydrogeologist capable of team leadership, developing/maintaining client relationships, and managing complex interdisciplinary projects to support and grow our business in the Greater Toronto Area (GTA). This is an excellent opportunity to serve as a Subject Matter Expert (SME) and to take an active role in the growth of our business through business/client development, technical advisory, and guiding and mentoring project teams. You will work with an outstanding group of geoscientists and engineers supporting a diverse range of projects in hydrogeology, land development, construction dewatering, and contaminant site assessments. We offer a professional working environment and culture and believe that work / life integration is essential to the success and happiness of our people. We also offer competitive salary packages based on qualifications, skills and experience. As part of a truly global team, working on complex and rewarding projects, you'll be at the forefront of driving change See what the power of commitment can do for you. Working with an energetic and high performing team, this position offers a variety of work and will see you involved in: * Insights and Reporting: Prepare and coordinate completion of technical reports and deliverables. This includes interpretation and compilation of geological and hydrogeological data, as well as coordination of stratigraphic log compilation, data tables, and supporting figures. Contribute to the preparation of environmental investigation summary reports, construction dewatering assessments, annual monitoring reports, and regulatory permitting documentation. * Solutions Analysis: Analyze complex environmental challenges by applying technical knowledge and assessment tools. Use analytical and interpretive skills to assess soil, groundwater, and surface water data, and provide practical, technically-sound recommendations to support site development and design, or major infrastructure projects. * Geoscientific Studies and Interpretations: Coordinate the collection, analysis, and interpretation of field and laboratory data to support geological, hydrogeological, and geotechnical investigations. Support subsurface characterization and investigation planning by applying advanced interpretation methods. * Health, Safety, and Environment: Follow GHD's health, safety, and environment (HSE) policies, procedures, and mandatory instructions to identify and mitigate environmental risks and risks to the well-being of yourself and others in the workplace. * Personal Capability Building: Develop your own capabilities by participating in assessment and development planning activities as well as formal and informal training and coaching. Gain or maintain external professional accreditation, where relevant, to improve performance and fulfill personal potential. Maintain an in-depth understanding of technology, external regulation, and industry best practices through ongoing education, attending conferences, and reading specialist media. * Client & Customer Management (External): Manage important client relationships with guidance from senior colleagues or oversee relationship management with a group of more transactional clients and customers. * Community of Practice Management: Participate actively in a community of practice in a defined area of expertise or consulting to build own expertise. * Exploration Plan Development: Design and implementing complex exploration plans. * Bid Solicitation/Request for Proposal/Tender Preparation: Gather information and resources, and draft and complete requests for bid solicitation requests for proposal (RFP) and requests for tender (RFT) on the requester side. * Project Management: Deliver small- or medium-scale projects while working within an established program management plan. Coordinate technical staff, subcontractors and resources throughout the project life cycle, and contribute to contract administration, invoicing and budget tracking as required. * Team Leadership: Lead scientific teams and support less-experienced colleagues by providing technical guidance, coaching and mentoring in the delivery of hydrogeology projects. * Decision Quality: Make sound, independent decisions within the scope of the role and provide technical guidance on complex hydrogeological matters. What you will bring to the Team: * Bachelor’s Degree in earth/environmental sciences or engineering * Master’s degree in earth/environmental sciences or hydrogeology would be considered an asset * P.Geo. or P.Eng. Licence in Ontario (Mandatory) * 8-15 years of professional experience with strong understanding and demonstrated field experience in soil classification, drilling methods and soil, sediment and groundwater sampling protocols * Proven project and client management skills * Excellent English writing and verbal communication is required to effectively express technical information * Exceptional attention to detail is integral Please note: * The salary range for this position is $90,000 to $ 130,000 The posted salary range represents the expected hiring range for GHD locations in its major city centres. Ranges may vary for positions in other locations. At GHD, base salary is determined by your skills, experience, qualifications and work location. We are committed to offering competitive compensation and adhere to all relevant pay transparency legislation. * The use of artificial intelligence (AI) in recruiting is just getting started and may be used during the process to improve efficiency and fairness. Your application may be reviewed by both AI and our hiring team. While AI supports some steps through the process, all final hiring decisions are made by humans * As a diverse and inclusive organization, we encourage individual achievement and recognize the strength of a diverse workforce. GHD is an equal opportunity employer. Upon request, GHD will provide reasonable accommodation for applicants with disabilities throughout the recruitment and selection process. * This position is for an existing vacancy. #LI-TP1

What you’ll do

Requirements

Candidates must hold a Bachelor's degree in earth/environmental sciences or engineering and possess a P.Geo. or P.Eng. license in Ontario. A minimum of 8-15 years of professional experience with strong field expertise in soil classification and groundwater sampling is required.