
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.
ADay in theLife
As an Senior Groundwater Modeller, in our Oakville, Guelph, Calgary office, you’ll be responsible for assisting multiple projects where you will have increasing interaction with our multi-disciplinary staff, regulatory agencies and clients. You will be part of a strong team of committed professionals.
The compensation range for this role is $134,000 to $184,000, commensurate with experience, skills, and geographic location
To thrive in this role,you’llbe comfortable taking ownership of the following responsibilities:
Develop and applygroundwater flow and transport modelsto support decision-makingfor a wide range of projects.
Provide ownership,oversight, review, and technical directionofmodelling projects and deliverables, collaborating closely with junior and intermediate project staff,internalcollaborators,and clients
Lead discussions with clients and prepare scopes of work including pricing and staffing
Act as projectmanager for multiple routine projects or fewer complex projects
Developandexecuteconceptual model-driven work plans that balance the application of innovative modelling tools and approaches with the scale and scope of the problem.
Collaborate with a multi-disciplinary team focused on being trusted advisorsto our clients
Managemultiple priorities, scope changes and supportmultiple project managers
Provide peer review and technical accountability of project results and reports.
Liaise with clients and stakeholders within various sectors
YourExpertise andSkills
These requirements reflect the knowledge,skillsand abilities that help you do your best work here.
Anundergraduateorgraduate degree in Engineering,EarthSciencesor related discipline
15years’ experiencein a similar role within a consulting environment with experience in hydrogeologyand numerical methods
Professional registration with provincial self-regulating organizations (e.g., APEGA)
Demonstrated experience in the application of numerical modellingtools and approaches,including,remedial action plans,subwatershedstudies, environmental assessments, wellhead protection studies, anduncertainty analysis to support risk assessment
Experiencewith FEFLOW,MODFLOW,MIKESHE, ATRANS,Hydrus,or similar software
Knowledgein specialized technical areas such asgeostatistics, reactive transport modelling, multi-phase modelling,or coupled surface water-groundwater flow and transport modelling
Skilled in data analysis using Database/GIS/Visualization tools to support conceptual model development and numerical modelling results analyses
Experiencein data management and analysis,especially withPythonorSQL
Strong business development acumen anddesire to develop and expand client opportunities
Strong interpersonal and communication skills, and a collaborative attitude
Strong commitment tomentorship and knowledge transfer
Ability to work within a multi-disciplinary team environment
Strongexperience writing technical memos and giving presentationsinaconsultingenvironment
A valid class G driver’s license with no restrictionsis an asset
This posting reflects a current vacancy that the company is actively seeking to fill. As a note, we are not accepting third party agency applicants at this time.
We are an Equal Opportunity Employer. We are committed to providing access and reasonableaccommodation inouremployment for individuals with disabilities
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 opportunity 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.

Montrose Environmental was one of the first to see environmental responsibility as not just an imperative but as a strategic asset. And we’re well ahead of the curve in applying the latest technologies in practical ways to solve difficult environmental challenges.
How? By building a leadership team with exceptional depth of experience and breadth of expertise. By bringing together a wealth of local knowledge that allows us to address homegrown issues across multiple locations. By removing operational roadblocks that stand in the way of streamlined, hassle-free, nation-spanning implementation. And by investing in assets and technologies that will keep us out in front of emerging environmental concerns for years to come.
In short, we approach our job the same way our clients approach theirs: With a sense of urgency, a commitment to adding value, and a stubborn refusal to settle for second-best. All to help the people we partner with identify and seize opportunity.