Winter 2027 Co-op: Data Scientist (4 months)

Position Description:

Join the AI innovation cell of the GMA Business Unit to experiment with, evaluate and industrialize models serving concrete generative AI and LLM use cases. This internship combines applied research, rigorous model evaluation and the setup of MLOps pipelines, in an environment where data and measurement drive decisions.

Perks of being a CGI Co-op:

The co-op program was designed to help students improve their skills and explore their professional interests through hands-on experience and professional guidance, while also helping them develop core competencies. As an intern, you have access to:

• Professional development sessions

• Professional development platform

• Networking events with colleagues and leaders

• Mentorship from leaders and colleagues aimed at setting and achieving your career goals

Start Date: January 2027 Application Deadline: September 28th, 2026

CGI is providing a reasonable estimate of the pay range for this role. The determination of this range includes factors such as skill set level, geographic market, experience and training, and licenses and certifications. Compensation decisions depend on the facts and circumstances of each case. A reasonable estimate of the current range is $18-32/hour. This role is an existing vacancy.

Your future duties and responsibilities:

Model experimentation and evaluation

• Take part in fine-tuning and evaluating language models (LLMs) for specific use cases: AiOps, developer copilots, internal chatbots.

• Design and run evaluation protocols — benchmarks, quality metrics, test sets — to compare models, prompts and approaches (including RAG).

• Analyze and prepare internal data (cleaning, structuring, feature engineering) for training and to feed RAG solutions.

MLOps and industrialization

• Contribute to implementing MLOps pipelines, notably via the Dataiku platform.

• Take part in monitoring model performance in context (monitoring, drift detection, retraining loops).

Documentation and AI offering creation

• Document the work carried out (methodologies, evaluation protocols, results).

• Contribute to qualifying and prioritizing use cases, with a responsible-AI and measurable-ROI mindset.

• Create presentations of the AI accelerators developed to showcase the offering.

Required qualifications to be successful in this role:

• Student in a master’s, engineering school or equivalent program with a specialization in AI, data science, statistics or computer science.

• Strong command of Python and of data science / NLP libraries (pandas, scikit-learn, PyTorch or TensorFlow, Hugging Face).

• Interest in LLMs, fine-tuning, model evaluation, MLOps and deployment challenges.

• Familiarity with an MLOps platform (Dataiku, an asset).

• Ability to document work cleanly and to explain technical topics in accessible terms.

• Initiative, autonomy and analytical rigor.

Bilingualism (French and English) is required for this position due to the nature of the role, which involves interactions with both national and international clients.

Why join us?

• Join a dynamic cell at the heart of AI innovation.

• Work on concrete, high-impact projects in a collaborative environment.

• Develop your skills in generative AI, AI industrialization (MLOps) and model evaluation.

• Benefit from high-quality technical informal mentorship and a learning culture.

Skills:

• Data Science

• Pandas

• Python

• PyTorch

• Scikit-Learn

• TensorFlow

What you can expect from us:

Together, as owners, let’s turn meaningful insights into action.

Life at CGI is rooted in ownership, teamwork, respect and belonging. Here, you’ll reach your full potential because…

You are invited to be an owner from day 1 as we work together to bring our Dream to life. That’s why we call ourselves CGI Partners rather than employees. We benefit from our collective success and actively shape our company’s strategy and direction.

Your work creates value. You’ll develop innovative solutions and build relationships with teammates and clients while accessing global capabilities to scale your ideas, embrace new opportunities, and benefit from expansive industry and technology expertise.

You’ll shape your career by joining a company built to grow and last. You’ll be supported by leaders who care about your health and well-being and provide you with opportunities to deepen your skills and broaden your horizons.

At CGI, we value the strength that diversity brings and are committed to fostering a workplace where everyone belongs. We collaborate with our clients to build more inclusive communities and empower all CGI partners to thrive. As an equal-opportunity employer, being able to perform your best during the recruitment process is important to us. If you require an accommodation, please inform your recruiter.

That same commitment to fairness extends to how we use technology. To support our recruitment team, AI tools may be used to help assess applications though they never replace human judgement. All hiring decisions remain entirely in the hands of our recruitment professionals.

To learn more about accessibility at CGI, contact us via email. Please note that this email is strictly for accessibility requests and cannot be used for application status inquiries.

Come join our team—one of the largest IT and business consulting services firms in the world.