Data Scientist - QuantumBlack, AI

Do you want to do work that matters, alongside supportive leaders who will help you grow faster than you ever thought possible? Are you a creative problem-solver who is energized by challenges?
You’ve come to the right place.

You will work as a core member of a multidisciplinary team to build and deliver advanced analytics and AI solutions that address complex business challenges across industries. You’ll contribute to analytical work streams, learn from experienced data scientists and engineers, and build your expertise across a breadth of industries and technologies. This Full-time opportunity is for current students with an upcoming graduation between December 2026 and August 2027 with a Master's, Bachelor's or PhD in computer science, machine learning, applied statistics, mathematics, engineering, artificial intelligence, or a related field.

You will translate business challenges into analytical problems and develop and evaluate solutions across machine learning, optimization, GenAI, and agentic AI systems. With guidance from more experienced colleagues, you’ll contribute to selecting and implementing analytical approaches, and ensure your work meets rigorous standards for data quality and evaluation. As you develop, you’ll take on increasing ownership for delivering solutions that are robust and fit for purpose.

Your work will create measurable impact on some of the most complex challenges facing organizations today. Collaborating across Quantum Black, AI by McKinsey and Quantum Black Labs teams, you’ll help clients harness advanced analytics and AI to improve decisions, transform operations, and build new capabilities.

Here’s how you might contribute over a given year:

• Develop an agentic AI solution that automates complex claims workflows for a global insurance company
• Optimize the schedule and funding of a multi-billion-dollar capital project to accelerate delivery
• Leverage predictive modeling and agentic AI to improve customer service outcomes for a global travel company
• Build a digital twin of an automotive supply chain to enhance product availability

You’ll be based in one of our Toronto office as part of our global Data Science community. Working in cross-functional teams, you’ll collaborate with data scientists, data engineers, software engineers, and industry experts, and work with clients across technical and business teams. Through these experiences, you’ll build your ability to connect analytical work with business needs and develop your skills as a client-facing technologist.

Your work offers a unique opportunity to grow at the front‑of the AI and data science. You’ll build expertise at the intersection of technology and business, develop your understanding of how AI solutions move from problem definition through development, evaluation, and implementation, and learn alongside leading technologists and AI practitioners.

In accordance with Ontario law:
This job posting is for an existing vacancy. Artificial intelligence systems (AI) may be used to assist recruiters in the screening and/or assessment of candidates for this role. AI is neither the sole determinative factor at any stage of the application process nor the decision-maker. All AI-generated assessments are reviewed by a McKinsey recruiter before any decision is made regarding a candidate's candidacy.

Driving lasting impact and building long‑term capabilities with our clients is not easy work. You are the kind of person who thrives in a high performance/high reward culture - doing hard things, picking yourself up when you stumble, and having the resilience to try another way forward. In return for your drive, determination, and curiosity, we'll provide the resources, mentorship, and…