St. Catharines On Environmental Jobs – 21 Openings This Week

Professional Experience Year (PEY) - Engineering - Niagara
Ontario Power Generation —Niagara-on-the-Lake, ON
- $38.47–$44.77 an hour
- Contract
- Bachelor's
- Travel
- Communication skills
1h
Health & Safety Coordinator
Westover Express Pipeline Limited —Niagara Falls, ON
- $42.50–$50.00 an hour
- Full-time
- Bachelor's
- First Aid Certification
- Travel
Quick apply
Business Development Manager - Mining & Environmental Laboratory Services (Eastern Canada)
Bureau Veritas —Ontario
- Full-time
- CRM software
- Customer service
- Engineering
Environmental Health & Safety Coordinator
Profile Products LLC —St. Catharines, ON
- $25–$30 an hour
- Full-time
- Heavy lifting
- English
- Microsoft Office
Quick apply
Water treatment technician
Aqua Service Niagara —St. Catharines, ON
- $20–$45 an hour
- Full-time
- Heavy lifting
- Forklift
- Plumbing
Quick apply
10d
Environmental Specialist
Triumvirate Environmental —Niagara Falls, ON
- $28 an hour
- Overtime
- Customer service
- Bachelor's
- No university degree
- Dental care
- Vision care
Quick apply
Field Operations Specialist
Walker Industries —Niagara Falls, ON
- $95,000–$122,000 a year
- Full-time
- Engineering
- Maintenance
- Project management
14d
Intermediate Environmental Engineer or Scientist
WSP —St. Catharines, ON
- $63,600–$92,300 a year
- Engineering
- Civil Engineering
- Communication skills
Program Associate - Education
Niagara Peninsula Conservation Authority —Vineland, ON
- $18.50–$19.01 an hour
- Temporary
- CPR Certification
- Customer service
- Research
Quick apply
14d
Environmental CAD Technologist / Draftsperson
Niagara Soils Solutions Ltd —Thorold, ON
- From $28 an hour
- Full-time
- AutoCAD
- CAD
- In-person
Quick apply
14d
Project Manager
Niagara Region —Thorold, ON
- $91,180–$107,260 a year
- Temporary
- Hybrid work
- Team management
- Travel
- Budgeting
- Employee assistance program
2d
Youth and Schools Education Coordinator
Pivot + Edge —Niagara Falls, ON
- From $18 an hour
- Full-time
- Hybrid work
- CRM software
- Writing skills
- Research
- Mileage reimbursement
Quick apply
14d
Community Outreach Coordinator
Pivot + Edge —Niagara Falls, ON
- From $18 an hour
- Weekends as needed
- Hybrid work
- English
- Research
- AI
- Mileage reimbursement
Quick apply
14d
Utility/Water Treatment Technician
AFIMAC Canada —Niagara Falls, ON
- $55 an hour
- 12 hour shift
- Microsoft Word
- Microsoft Outlook
- Heavy lifting
Quick apply
Health & Safety Co-ordinator
Peters Construction Group —Welland, ON
- $75,000–$90,000 a year
- Full-time
- Microsoft Office
- Mentoring
- In-person
- Wellness program
- Dental care
Quick apply
11d
Project Management Co-op Student
Walker Industries —Niagara Falls, ON
- $30–$32 an hour
- Full-time
- Microsoft Outlook
- Budgeting
- Manufacturing
4d
Engineering Designer, Water - Niagara
R.V. Anderson Associates Limited —St. Catharines, ON
- $72,000–$85,000 a year
- Full-time
- Engineering
- English
- Microsoft Office
- Dental care
- Paid time off
Quick apply
Mine Ventilation Operations Manager
Patrick Sprack Limited —Canada
- $110,000–$150,000 a year
- Full-time
- Engineering
- Maintenance
- Supervising experience
- Dental care
- Life insurance
Quick apply
14d
Health & Safety Advisor (Casual) - Various Project Locations
CIMS Limited Partnership —Canada
- $35–$65 an hour
- No university degree
- Travel
- In-person
Quick apply
2d

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AI Annotation Specialist Data Science - AI Trainer
DataAnnotation —St. Catharines, ON
A bachelor's degree in a quantitative field preferred (Statistics, Computer Science, Mathematics, Engineering, or similar); an advanced degree (Master’s or PhD)…
$50.00–$140.56 an hour
Quick apply
Remote Sales and Service Advisor
HMG Careers —Niagara Falls, ON
Insurance license required or willingness to obtain one. You will work remotely, serving clients by providing guidance and protection solutions for individuals…
$69,000 a year
Quick apply
4d

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Health & Safety Lead
ATTA Elevators —Concord, ON
Support the development and execution of emergency response plans in collaboration with relevant departments. Experience with development of a Safety Management…
Up to $130,000 a year
Quick apply
Winter 2027 - Co-Op - Science & Environment - Durham Region
Ontario Power Generation —Bowmanville, ON
To help prevent any potential delays in the security clearance process, candidates will be required to obtain their government-issued physical documents,…
$33.60–$44.77 an hour
1h

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environmental jobs near st. catharines on

Professional Experience Year (PEY) - Engineering - Niagara

Ontario Power Generation -
Niagara-on-the-Lake, ON

Apply Now

Job details

Contract | Fixed term contract
$38.47–$44.77 an hour
1 hour ago

Qualifications

Bachelor's
Project implementation
Communication skills
Driving Licence

Full job description

Posting Start Date: 04/09/2026

Posting End Date: 01/10/2026

Status: Contract (Up to 12 Months)

Working Conditions: On-site

Education Level: University, minimum completion of 3rd year in a 4-year program or 4th year in a 5-year program by May 2027

Base Location: Niagara, ON

Shift: Days

Travel Required: 10%

Deadline to Apply: September 30, 2026

Salary Range: $38.47 - $44.77 per hour

Electrify your career and help build a brighter tomorrow.

Every generation has a challenge that defines them. At OPG, we are calling on all innovators, disruptors, thought leaders and change-makers. Join us as we work to electrify life in one generation and build a sustainable future powered by our electricity, our ideas, and our people. Join OPG and make history.

Whether you work in the skilled trades or are a business professional, a career at OPG is an opportunity to electrify your life on - and off - the job.

Ontario Power Generation (OPG) is looking for a dynamic, strategic and results-driven professional to join our team in the role of Professional Experience Year Intern.

Job Overview

Ontario Power Generation (OPG) is looking for a dynamic, strategic and results-driven professional to join our team in the role of Professional Experience Year (PEY) student.
In this role, you will be guided by a dedicated manager who will oversee your work, offer hands-on support, and connect you with mentors devoted to your professional development. You will have the opportunity to work on real-world projects, allowing you to make meaningful contributions to the organization while gaining valuable, practical experience.

APPLYING TO OPG’S PEY PROGRAM

This posting is for multiple PEY positions at Ontario Power Generation (OPG) starting in May 2027. Applicants will be reviewed and matched with OPG managers hiring students within their discipline. The job description and accountabilities below are broad and may not reflect the specific duties of each placement. If selected for an interview, you’ll receive details about the specific role, team, and responsibilities.

Key Accountabilities

Collaborate with a multi-disciplinary team of professionals to support the operation of various systems.
Contribute to the overall objective of achieving an integrated environment dedicated to the safe and reliable operation of OPG’s plants.
Assist with developing and executing projects in compliance with the nuclear industry’s demanding set of regulations and standards using established project management processes.
Maintaining written documented processes and procedures to reflect improved operating methods and additions to all supported systems.
Other tasks as assigned.

Qualifications

Pursuing a full-time undergraduate degree at an accredited institution on a full-time basis OR by the start of the opportunity in May 2027, will have completed 3rd year of a 4-year program or 4th year of a 5-year program.
Now hiring into the following disciplines:
- Environmental Engineering
- Software Engineering
- Civil Engineering
- Computer Engineering
- Mechanical Engineering
- Electrical Engineering
- Geotechnical Engineering
- Geological Engineering"
- Other engineering disciplines
Have a minimum average of 70% GPA (B-).
Will be returning to full-time studies in the same program following the completion of the work term.
Currently enrolled and meets the minimum eligibility requirements for the Internship or Co-op Program as defined by your academic institution. Superior analytical, problem-solving, and troubleshooting skills and demonstrated project management, organizational, and leadership abilities.
Willingness to learn, take initiative, and adapt to new challenges.
Excellent verbal, written, and interpersonal communication skills.
Ability to work effectively both independently and as part of a team with a proven aptitude for managing multiple tasks and priorities efficiently.

Important note for Co-Op Applicants: When submitting your application, please include all of your work and volunteer experience on your resume, even if you feel it may not be directly relevant. This allows us to gain a complete picture of your professional background.

All successful candidates will be required to complete a security clearance application. Before the application can be completed, ID verification will be required. To help prevent any potential delays in the security clearance process, candidates will be required to obtain their government-issued physical documents, including one of the following: their driver’s license or passport or status card, as well as their birth certificate and work permit (if applicable).

The successful candidate will exhibit uncompromising integrity and commitment to upholding corporate values, and the OPG Code of Business Conduct.

OPG is committed to fostering an inclusive, equitable, and accessible environment. If you require accommodation during the selection process, please contact [email protected].

What makes a career at OPG different?

With operations across Ontario, OPG is one of the most diverse power producers in North America. As the largest generator in Ontario, we meet approximately 50% of the province’s electricity needs, largely from low-carbon sources like nuclear and hydro.

As we work to achieve our vision of Electrifying life in one generation, OPG and our family of companies are also helping advance the development of new low-carbon technologies such as Small Modular Reactors (SMRs), refurbishment projects, and electrification initiatives to help power the growing demands of a growing economy. Join OPG and make history.

The Darlington New Nuclear Project is leading the way in the advancement of Small Modular Reactor (SMR) technology in Canada – the future of nuclear power generation! Using new and innovative technologies such as small modular reactors, hydrogen and battery storage, while expanding our hydroelectric and nuclear portfolios, we are changing the electricity landscape in Ontario.

Important Information

The base salary range considers many factors including, but not limited to experience, education, and training, including any collective agreement requirements for union represented positions. It is not typical for the salary to be offered near the top of the range, and salary is dependent on numerous factors. For management roles, the base salary range does not represent the total compensation package. The total compensation package for regular full-time management roles includes pay-for-performance programs for annual and medium time periods. Maintaining a high-performance culture and excellence is a core expectation of every member of our leadership team and is rewarded through the established compensation framework.

OPG is committed to employment equity. As such, we encourage applicants from equity-seeking communities (Indigenous Peoples, racialized persons, persons with disabilities, and women). We strongly believe that alleviating the under-representation of equity-seeking individuals will create a stronger OPG team and allow us to better serve the needs of our diverse communities.

In order to fulfill the above-mentioned purpose, priority in hiring may be given to qualified persons who self-identify as a member of equity-seeking groups as identified in the application process. This initiative constitutes a special program under the Human Rights Code/Canadian Human Rights Act.

All job postings at OPG are to fill existing vacancies within our organization.

OPG may use artificial intelligence (AI) tools as part of the applicant screening process. However, applications will also be reviewed by a member of our Recruitment team to ensure a fair and thorough assessment.

Please submit your application online at https://jobs.opg.com/. OPG thanks all those who apply; however, only candidates considered for an interview will be contacted.

Apply Now

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environmental jobs in st. catharines on

Professional Experience Year (PEY) - Engineering - Niagara

Health & Safety Coordinator

Business Development Manager - Mining & Environmental Laboratory Services (Eastern Canada)

Environmental Health & Safety Coordinator

Water treatment technician

Environmental Specialist

Field Operations Specialist

Intermediate Environmental Engineer or Scientist

Program Associate - Education

Environmental CAD Technologist / Draftsperson

Project Manager

Youth and Schools Education Coordinator

Community Outreach Coordinator

Utility/Water Treatment Technician

Health & Safety Co-ordinator

Project Management Co-op Student

Engineering Designer, Water - Niagara

Mine Ventilation Operations Manager

Health & Safety Advisor (Casual) - Various Project Locations

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