Senior Hydrogeologist

Work with Us. Change the World.

At AECOM, we're delivering a better world. Whether improving your commute, keeping the lights on, providing access to clean water, or transforming skylines, our work helps people and communities thrive. We are the world's trusted infrastructure consulting firm, partnering with clients to solve the world’s most complex challenges and build legacies for future generations.

There has never been a better time to be at AECOM. With accelerating infrastructure investment worldwide, our services are in great demand. We invite you to bring your bold ideas and big dreams and become part of a global team of over 50,000 planners, designers, engineers, scientists, digital innovators, program and construction managers and other professionals delivering projects that create a positive and tangible impact around the world.

We're one global team driven by our common purpose to deliver a better world. Join us.

The ideal candidate will report directly to the Hydrogeology Operations Manager and will work collaboratively with other members of the Ontario and Quebec Geosciences (Hydrogeology & Geotechnical Engineering) and Remediation Teams, external sub-contractors / consultants, clients, as well as professionals within other internal AECOM business lines. The position is based in our Kitchener, Mississauga or Markham office. This is a replacement position.

Major responsibilities include:

• Work closely with the local Geotechnical Engineering team to build AECOM's Geoscience services within southern Ontario.
• Develop a client base within both the public and private sectors.
• Lead the preparation of external proposals for direct client assignments and the Hydrogeology components of multi-disciplinary AECOM proposal submissions.
• Advanced duties in quality control, planning, cost estimating and scheduling.
• Administrative staff management responsibilities are available, subject to candidate interest.
• Mentor junior and intermediate hydrogeology staff locally, and throughout Ontario.
• Represent the AECOM Geosciences Team as a Subject Matter Expert on large, complex, multi-disciplinary projects.
• Manage projects and undertake technical work in accordance with contract scope of work and budget, and to company, professional, quality, and legislative standards.
• Develop and lead field investigation programs, directing the collection and analysis of field data.
• Oversee and implement subcontracts and purchase orders for collaboration with subconsultants/contractors, manage subs throughout the project lifecycle.
• Liaise with regulatory authorities, landowners, and other third parties.
• Interpret regulations and manage permitting with provincial and municipal bodies.
• Oversee, conduct and analyze aquifer tests, and other hydrologic analyses.
• Work with colleagues to conceptualize, build, calibrate, and utilize groundwater flow models using industry accepted software (Visual MODFLOW, FEFLOW) .
• Oversee preparation of technical reports including potentiometric surface/water table maps, geologic and hydrogeological cross-sections, hydrogeologic model simulations, dewatering assessments, and impact assessments.

Minimum Qualifications:

• B.Sc. degree in Geology, Hydrogeology, Engineering Geology, or related disciplines.
• 8+ years of Hydrogeology work experience.
• Registered, in good standing with PGO and/or PEO.

Preferred Qualifications:

• M.Sc. degree in Geology, Hydrogeology, Engineering Geology, or related disciplines.
• Ideally 10+ years of Hydrogeology work experience.
• Registered, in good standing with OIQ (ordre des ingénieurs du Québec) would be an asset.
• Technical proficiency in physical hydrogeology, geochemistry and report writing.
• Experience with groundwater resources, hydrogeological assessments, MECP Permit to Take Water/EASR, construction dewatering, groundwater monitoring and/or groundwater modeling.
• Consulting experience and knowledge of provincial and federal acts and policies.
• Experience on High and Medium Complexity MTO or MTQ Hydrogeology projects considered an asset.
• Strong data visualization and presentation skills required.
• Excellent written and oral communication skills.
• Ability to speak both French and English an asset.
• Professional Geoscience work experience in the Province of Quebec an asset.

At AECOM, we are committed to maintaining a secure and trustworthy recruitment process and take any fraudulent hiring activity seriously. To support this commitment, all newly hired employees are required to attend an in-person Day 1 onboarding at an AECOM office location as a condition of employment.

About AECOM 

AECOM is proud to offer comprehensive benefits to meet the diverse needs of our employees. Depending on your employment status, AECOM benefits may include medical, dental, vision, life, AD&D, disability benefits, paid time off, leaves of absences, voluntary benefits, perks, flexible work options, well-being resources, employee assistance program, business travel insurance, service recognition awards, retirement savings plan, and employee stock purchase plan. 

AECOM is the global infrastructure leader, committed to delivering a better world. As a trusted professional services firm powered by deep technical abilities, we solve our clients’ complex challenges in water, environment, energy, transportation and buildings. Our teams partner with public- and private-sector clients to create innovative, sustainable and resilient solutions throughout the project lifecycle – from advisory, planning, design and engineering to program and construction management. AECOM is a Fortune 500 firm that had revenue of $16.1 billion in fiscal year 2025. Learn more at aecom.com. 

What makes AECOM a great place to work 

You will be part of a global team that champions your growth and career ambitions. Work on groundbreaking projects - both in your local community and on a global scale - that are transforming our industry and shaping the future. With cutting-edge technology and a network of experts, you’ll have the resources to make a real impact. Our award-winning training and development programs are designed to expand your technical expertise and leadership skills, helping you build the career you’ve always envisioned. Here, you’ll find a welcoming workplace built on respect, collaboration and community - where you have the freedom to grow in a world of opportunity. 

As an Equal Opportunity Employer, we believe in your potential and are here to help you achieve it. All your information will be kept confidential according to EEO guidelines. Artificial intelligence will be used to support the screening, assessment, and selection of applicants for this role. Final hiring decisions are made by the hiring team.