Ontario Marketing intern Jobs – 71 Openings This Week

Winter 2027 - Co-Op - Communications, Indigenous Relations & Media Design - Durham Region
Ontario Power Generation —Oshawa, ON
- $33.60–$44.77 an hour
- Contract
- Travel
12h
Marketing Intern
Testmark Laboratories —Garson, ON
- $20 an hour
- Research
- Organizational skills
- In-person
Quick apply
14d
Marketing Intern
iSTORM New Media —Kingston, ON
- Part-time
- Research
- Analytics
Quick apply
Marketing Intern - 12 Months
Cyclic Materials Inc. —Toronto, ON
- $26 an hour
- Contract
- Microsoft Outlook
- Marketing
- Research
- Dental care
- Paid time off
Quick apply
3d
Marketing Intern (Sep 2026 - Feb 2027)
Galderma —Toronto, ON
- Full-time
- Presentation skills
- Bachelor's
- Communication skills
Junior/Intern Level - Brand Marketing Consultant (Co-Op)
Phoenix International —Hamilton, ON
- Marketing
- Customer service
- No experience needed
Quick apply
Events Marketing Intern
commonsku —Toronto, ON
- $3,700–$4,150 a month
- Hybrid work
- Marketing
- Research
- Hotel
9d
Marketing Intern; CoverGirl & Rimmel London
Coty Inc. —Toronto, ON
- $36,608 a year
- Microsoft Powerpoint
- Marketing
- Analysis skills
Marketing Communications Intern
ESAB Welding & Cutting GmbH —Mississauga, ON
- Full-time
- Communication skills
6d
Social Media Marketing Intern
To2 Media —Toronto, ON
- $17.60–$28.62 an hour
- Part-time
- Remote
- Marketing
- Analytics
- Work from home
- Flexible schedule
Quick apply
10d
Growth Marketing Intern
Relay —Toronto, ON
- $25–$30 an hour
- Hybrid work
- Budgeting
- AI
- Internship / Co-op
Fall 2026 Marketing Intern (4 or 8 months)
Turner Construction Company —Toronto, ON
- $20–$24 an hour
- Full-time
- Marketing
- Research
- Databases
Marketing Intern
Guestable Inc. —Toronto, ON
- $17.60–$26.90 an hour
- Part-time
- Hybrid work
- Google Suite
- Marketing
- Microsoft Office
Quick apply
Intern, Marketing (Trade) (Toronto Hybrid) (12 month contract)
HarperCollins Publishers —Toronto, ON
- $20 an hour
- Contract
- Hybrid work
- Marketing
- Research
- Associate's degree
Marketing Intern
Nanoleaf —Toronto, ON
- $18 an hour
- Hybrid work
- Marketing
- Organizational skills
- AI
Quick apply
Communications Intern
Italian Contemporary Film Festival (ICFF) —Toronto, ON
- Research
- Internship / Co-op
- Communication skills
3d
Winter Intern 2027 - Product Marketing
Mackenzie Financial Corporation —Greater Toronto Area, ON
- $49,000–$51,000 a year
- Full-time
- Hybrid work
- Microsoft Powerpoint
- Microsoft Word
- Analysis skills
- Paid time off
Marketing & Community Engagement Intern
Bracebridge Chamber of Commerce —Bracebridge, ON
- $40,000 a year
- Full-time
- In-person
- Communication skills
- Analytics
Quick apply
2d
Intern, Marketing (Trade) (Toronto Hybrid) (12 month contract)
News Corp —Toronto, ON
- $20 an hour
- Contract
- Hybrid work
- Marketing
- Research
- Associate's degree
Digital Marketing Intern
Local Contractor —Bowmanville, ON
- From $18 an hour
- Part-time
- High school diploma or GED
- In-person
- Business
- Flexible schedule
Quick apply
8d

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Winter 2027 - Co-Op - Communications, Indigenous Relations & Media Design - Durham Region

Ontario Power Generation -
Oshawa, ON

Apply Now

Job details

Contract | Fixed term contract
$33.60–$44.77 an hour
12 hours ago

Qualifications

Event planning
Graphic design
Cross-functional collaboration
Cross-functional communication
Driving Licence

Full job description

Posting Start Date: 04/09/2026

Posting End Date: 01/10/2026

Status: Contract (4 or 8 months)

Working Conditions: On-site

Education Level: University, minimum 1st year completed

Base Location: Oshawa, Pickering

Shift: Days

Travel Required: 10%

Deadline to Apply: September 30, 2026

Salary Range: $33.60 - $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 Co-Op/Developmental Student College/Uni.

Job Overview

As a Co-op Student at OPG, you’ll gain hands-on experience and develop valuable skills for your future career. You’ll work alongside colleagues from diverse backgrounds and contribute to projects that support a sustainable future.

APPLYING TO OPG’S CO-OP PROGRAM

This posting is for multiple co-op positions at Ontario Power Generation (OPG) starting in January 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

Contribute to real-world projects that align with your field of study and career interests.
Collaborate with cross-functional teams to support project goals and deliverables.
Apply classroom knowledge to practical, hands-on work assignments.
Learn and adapt to new tools, technologies, and processes relevant to the industry.
Assist with day-to-day tasks and ensure smooth operations within your assigned department.
Take ownership of delegated responsibilities and deliver quality results.
Communicate effectively with team members, mentors, and stakeholders.
Engage in mentorship opportunities to gain insights and guidance from experienced professionals.

Qualifications

Currently enrolled as a full-time, post-secondary student in a recognized institution, pursuing one of the following areas of study:
- Communication
- Indigenous Relations
- Graphic design
- Event Planning
- Marketing
- Social Media Development
- Other related disciplines
Have completed a minimum of 1st year in an undergraduate program at university by the start of the opportunity.
Returning to full-time studies in the same program following the completion of the work term OR require the work term or co-op placement to graduate.
Have a minimum average of 70% cumulative GPA (transcript must be included in application).

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

Refine Your Search

marketing intern jobs in ontario

Winter 2027 - Co-Op - Communications, Indigenous Relations & Media Design - Durham Region

Marketing Intern

Marketing Intern

Marketing Intern - 12 Months

Marketing Intern (Sep 2026 - Feb 2027)

Junior/Intern Level - Brand Marketing Consultant (Co-Op)

Events Marketing Intern

Marketing Intern; CoverGirl & Rimmel London

Marketing Communications Intern

Social Media Marketing Intern

Growth Marketing Intern

Fall 2026 Marketing Intern (4 or 8 months)

Marketing Intern

Intern, Marketing (Trade) (Toronto Hybrid) (12 month contract)

Marketing Intern

Communications Intern

Winter Intern 2027 - Product Marketing

Marketing & Community Engagement Intern

Intern, Marketing (Trade) (Toronto Hybrid) (12 month contract)

Digital Marketing Intern

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