About Us

At Onterris, we build careers grounded in purpose, responsibility and real-world impact. “For Planet and Progress” is our north star that guides everything we do. We believe environmental responsibility and human progress are interconnected, interwoven and international. Our scientists, engineers, field teams, consultants and professionals collaborate across disciplines and geographies, guiding industries and governments, ensuring that communities and environments thrive.

When you join us, you’re not just forging a career, you’re joining a movement. A movement for better thinking, smarter solutions and lasting impact.

Together, we will advance our way of life and protect the integrity of our environment every step of the way.

A Day in the Life

As a Junior Hydrogeologist/Geologist, based out of our Guelph or Oakville, Ontario office, you will support a wide range of hydrogeology, groundwater, and environmental projects across our mining, infrastructure, energy and municipal sector work. Working closely with senior geoscientists and engineers, you will gain hands-on field experience while building your technical and regulatory expertise. You will be part of a strong team of committed professionals.

The compensation range for this role is $25.00 to $32.00, commensurate with experience, skills, and geographic location To thrive in this role, you’ll be comfortable taking ownership of the following responsibilities:

· Support technical and project delivery on a range of hydrogeology and groundwater projects, including hydrogeological assessments, contaminated site investigations, and regulatory groundwater monitoring programs

· Participate in field programs, including soil and groundwater sampling, monitoring well installation, pumping and aquifer testing, and installation and data collection from groundwater monitoring equipment

· Assist with borehole drilling program oversight, field logging, and sample chain of custody

· Support development of conceptual site models and assist with data analysis, interpretation, and reporting of project results

· Assist in preparing technical reports, work plans,



and regulatory submissions under the guidance of senior staff

· Develop working knowledge of relevant Ontario regulatory requirements, including O. Reg. 903 (Wells), O. Reg. 153/04 (Records of Site Condition), and O. Reg. 406/19 (On-Site and Excess Soil Management)

· Travel to project sites across Ontario and beyond, with travel requirements of 50% or more depending on project needs

Your Expertise and Skills

These requirements reflect the knowledge, skills and abilities that help you do your best work here. · Ability to travel up to 50%+

· Ability to interface with cross-functional teams and all levels of personnel/management

· Undergraduate degree in geology, hydrogeology, earth sciences, environmental engineering, or a related field

· 1 – 3 years of relevant experience, ideally within a consulting or field-based environment

· Working understanding relevant Ontario regulations, including O. Reg. 903 (Wells), O. Reg. 153/04 (Records of Site Condition), and O. Reg. 406/19 (On-Site and Excess Soil Management)

· Groundwater field experience, such as sampling, monitoring well installation, and/or aquifer testing

· Working knowledge of industry-standard software packages such as AQTESOLV, Surfer, GIS, etc. Knowledge of geomodelling and groundwater modelling software such as Leapfrog and FEFLOW are considered an asset.

· Eligibility for registration as a Professional Geoscientist-in-training (GIT) or Engineer-in-Training with a recognized Canadian licensing body (e.g., PGO, PEO) considered an asset

· A valid and clean class G driver’s license with no restrictions

Work Environment and Physical Requirements

The physical and environmental requirements below reflect what’s typically needed to perform the essential functions of this role safely and effectively.



We may provide reasonable accommodations for qualified individuals with disabilities, consistent with applicable law, to support performance of the essential functions. · Sitting, standing, and walking

· Lifting 23 kilograms (50 pounds) several times a day

· Overhead lifting of over 9 kilograms (20 pounds)

· Works in an office environment when not deployed to a field or project site

· Often works outdoors and may be exposed to hot and cold environments and extreme weather conditions, including sunlit, rainy and windy conditions

Onterris provides support in its recruitment processes to applicants with disabilities; including accommodation that considers an applicant’s accessibility needs. Candidates requiring accommodation during the recruitment process are asked to work with Human Resources directly.

This posting reflects a current vacancy that the company is actively seeking to fill. Please note, we are not accepting third party agency applicants at this time.

Onterris is a leading global environmental solutions company partnering with organizations to solve complex challenges where environmental pressures, regulatory expectations and operational risks intersect. Guided by our mission to advance the way of life without compromising the integrity of our environment, we believe environmental responsibility and human progress are fundamentally connected. Our scientists, engineers, field teams and consultants apply systems thinking that unites science, data and practical expertise to deliver solutions that strengthen our clients’ resilience, mitigate risk and protect the air, water and soil that sustain communities, while uncovering responsible paths forward for planet and progress.

For more information, visit www.onterris.com.

We are an equal chance employer and encourage applications from people of all backgrounds. We acknowledge that these experiences and perspectives help to enrich our teams and contribute to our ongoing success. We are committed to providing access and reasonable accommodation in our employment for all applicants. For US residents, click here to learn more.

📌 Junior Hydrogeologist or Geologist (Oakville)
🏢 Onterris
📍 Oakville