Toronto, On Horizon co op Jobs – 15 Openings This Week

Data Science - Co-op Student
Rodan Energy Solutions Inc. —Mississauga, ON
- $20–$25 an hour
- Microsoft Excel
- Computer Science
- Engineering
Quick apply
23h
Fall 2026: WiSE Developer Co-op (8 month)
CGI —Toronto, ON
- $18–$32 an hour
- Microsoft Powerpoint
- Microsoft Excel
- Oracle
Quick apply
Fall 2026: WiSE AI Developer Co-op (12 months)
CGI —Toronto, ON
- $18–$32 an hour
- Microsoft Excel
- Azure
- Computer Science
Quick apply
Fall 2026:Junior AI Developer Co-op (8 months)
CGI —Toronto, ON
- $18–$32 an hour
- Computer Science
- APIs
- AI
Quick apply
Fall 2026: WiSE AI Developer Co-op
CGI —Toronto, ON
- $18–$32 an hour
- Microsoft Excel
- Math
- APIs
Quick apply
Fall 2026:WiSE Test Automation Co-op (4 month)
CGI —Toronto, ON
- $18–$32 an hour
- Engineering
- Java
- Internship / Co-op
Quick apply
NEW GRAD AI Developer
CGI —Toronto, ON
- $50,000–$80,000 a year
- Hybrid work
- Computer Science
- Engineering
- Databases
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20h
NEW GRAD Full Stack Developer
CGI —Toronto, ON
- $50,000–$80,000 a year
- Hybrid work
- Computer Science
- DevOps
- Engineering
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20h
NEW GRAD Junior Project Manager/ Business Analyst
CGI —Toronto, ON
- $50,000–$80,000 a year
- Hybrid work
- Microsoft Powerpoint
- Microsoft Word
- Microsoft Excel
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20h
NEW GRAD Quality Assurance Analyst
CGI —Toronto, ON
- $50,000–$80,000 a year
- Hybrid work
- Computer Science
- Engineering
- Java
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20h
Professor Firefighting
Seneca Polytechnic —North York, ON
- $77,153–$133,752 a year
- Immediate opening
- Engineering
- Master's degree
- Administrative experience
Applied Research Intern, Proactive Intelligence & Customer World Models (PhD / Graduate Co-op)
Block, Inc. —Toronto, ON
- Overtime
- Remote
- Doctoral degree
- Computer Science
- Research
- Paid time off
Professor Environmental Education / Sustainability
Seneca Polytechnic —North York, ON
- $77,153–$133,752 a year
- Immediate opening
- Doctoral degree
- English
- Administrative experience
Professor, Part-Time (Clinical Research)
Seneca Polytechnic —North York, ON
- Part-time
- Data analysis skills
- Research
- Master's degree
Professor, Part-Time (Pharmaceutical Regulatory Affairs & Quality Operations)
Seneca Polytechnic —North York, ON
- Part-time
- Master's degree
- Administrative experience
- High school diploma or GED

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Professor Firefighting
Seneca Polytechnic —North York, ON
Collaborate with program leadership and industry stakeholders to ensure program relevance. Contribute to academic planning and program development.
$77,153–$133,752 a year
Professor Environmental Education / Sustainability
Seneca Polytechnic —North York, ON
Drive curriculum development by implementing innovative instructional methods and utilizing multimedia resources to enhance student engagement and understanding…
$77,153–$133,752 a year

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horizon co op jobs near toronto, on

Data Science - Co-op Student

Rodan Energy Solutions Inc. -
Mississauga, ON

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Job details

Internship / Co-op
$20–$25 an hour
23 hours ago

Qualifications

Microsoft Excel
Statistics
Customer retention
Computer Science
Engineering
NumPy
Git
Master's degree
SQL
Pandas
Analysis skills
Bachelor's
Machine learning
Recruiting
GitHub
Model evaluation
Communication skills
Python
Data Science

Full job description

About Us:

At Rodan Energy, our mission is Making Sustainable, Attainable. As a leading North American energy services company, we provide innovative energy solutions that help clients reduce energy costs and GHG emissions, support electrification, and enhance grid efficiency. With over 20 years of expertise, we’re trusted by North America’s largest energy users, power producers, and utilities.

Why Join Rodan:

Thriving Industry: Join a rapidly growing sector at the forefront of innovation and sustainability, helping shape the future of energy management.
Product Market Fit: With a 98% client retention rate and consistent year-over-year growth, Rodan has built a reputation for delivering trusted, long-term partnerships with industry leaders
Top Talent & Strong Culture: Collaborate with high-performing, passionate individuals who are committed to excellence, innovation, and sustainability.

What Makes This Role Great:

Gain hands-on experience building forecasting models that inform real facility, market, and pricing decisions
Exposure to time-series modeling, ML pipelines, and the Databricks platform in a live production environment
Work alongside experienced data scientists and energy-market domain experts
Opportunity to build technical skills in a collaborative, high-impact environment
In-office collaboration, five days a week, designed for hands-on learning and mentorship

Key Responsibilities:

Design, build, and validate time-series forecasting models for facility load, market demand, and electricity price signals
Explore and tune modeling approaches (statistical, ML, and deep learning) with guidance from the team, based on the forecasting horizon, data availability, and accuracy requirements
Contribute to ML pipelines on the Databricks platform using PySpark, MLflow, and Delta Lake (we’ll teach you the platform)
Build dashboards and automated reports in Databricks to replace manual Excel workflows
Learn from energy-market domain experts and incorporate their knowledge of market structures, tariff rules, and grid dynamics into model features and evaluation frameworks
Communicate model performance, assumptions, and limitations to both technical and non-technical stakeholders

Required Skills & Qualifications

Currently enrolled in a registered Co-op program and working towards an undergraduate or graduate degree in Data Science, Statistics, Computer Science, Engineering, or a related quantitative field
Working knowledge of Python, SQL, Excel, and core data science libraries (e.g., pandas, scikit-learn, numpy)
Foundational understanding of statistical or machine learning modeling concepts, ideally including time-series methods.
Strong analytical thinking and clear written and verbal communication skills.
Collaborative mindset, self-motivated, and comfortable asking questions and iterating on feedback

Nice to Have:

Coursework, projects, or work experience related to the electricity sector and curiosity about the data and dynamics that drive it
Familiarity with weather data integration for load and renewable forecasting
Any exposure to the Databricks platform
Familiarity with Git/GitHub for organizing and version-controlling your code

Term Details, Compensation & Work Location

Term: September 2026 – December 2026 (4-month co-op term)
Compensation: $20.00 - $25.00 per hour, based on year of study, relevant experience, and internal equity
Schedule: 40-hour work week
Location: Mississauga, ON
Work Arrangement: 5 days per week in-office
Vacancy Status: This posting is for an existing Fall 2026 co-op opportunity

Life at Rodan – Our Culture:
At Rodan, we believe a great workplace goes beyond the work itself. Recognized as Canada’s Top Small & Medium Employer of 2026, we’ve built a culture rooted in collaboration, celebration, and giving back. Here’s what you can look forward to when you join the team:

Celebrations Throughout the Year: We mark occasions and holidays all year long with team events including holiday parties, team dinners, bowling nights, go-karting, Annual Summer BBQ, golf tournaments, and more.
Learning & Growth: Lunch and learns, crossword challenges, and education-funding programs to keep you sharp and growing in your career.
Giving Back: Our Employee Initiatives Committee (EIC) organizes food drives and fundraising for local charities throughout the year – and everyone is welcome to get involved.

Apply Now: If you're a curious, driven student who's passionate about data, modeling, and the future of energy, we want to hear from you! Please submit your resume, cover letter, and unofficial transcript together as one attachment.

Website | Twitter | LinkedIn

Hiring Process
Rodan Energy's hiring process is designed to identify candidates who are the right fit — technically, culturally, and professionally. As part of our process, candidates should be aware of the following:

Background Check: As part of our hiring process, the successful candidate will be required to complete a background check, which may include a criminal record check and credential verification. Professional references will also be collected as part of the process.
Assignment: Shortlisted candidates may be asked to complete a practical assignment. This is an opportunity to demonstrate your problem solving approach, creativity, and how you think through a real-world dataset.

We respect your time and will provide clear instructions and reasonable timelines for any assignments requested.

Rodan Energy Solutions is committed to an inclusive, accessible recruitment and employment experience in compliance with the Accessibility for Ontarians with Disabilities Act, 2005 (AODA). Accommodations are available upon request throughout the hiring process and, if hired, during employment. If you require an accommodation, please contact [email protected] so we can work with you to meet your needs in a manner that respects dignity, independence, integration, and equal opportunity.

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Refine Your Search

horizon co op jobs in toronto, on

Data Science - Co-op Student

Fall 2026: WiSE Developer Co-op (8 month)

Fall 2026: WiSE AI Developer Co-op (12 months)

Fall 2026:Junior AI Developer Co-op (8 months)

Fall 2026: WiSE AI Developer Co-op

Fall 2026:WiSE Test Automation Co-op (4 month)

NEW GRAD AI Developer

NEW GRAD Full Stack Developer

NEW GRAD Junior Project Manager/ Business Analyst

NEW GRAD Quality Assurance Analyst

Professor Firefighting

Applied Research Intern, Proactive Intelligence & Customer World Models (PhD / Graduate Co-op)

Professor Environmental Education / Sustainability

Professor, Part-Time (Clinical Research)

Professor, Part-Time (Pharmaceutical Regulatory Affairs & Quality Operations)

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