Data Scientist Intern - QuantumBlack, AI by McKinsey

McKinsey & Company, Inc.; Paris; Hybride; EUR 13 000 - 20 000; Plein temps

Avantages offerts par ce poste

World-class benefits

Mentorship program

Global exposure

Résumé du poste

McKinsey & Company, Inc. offers a 6-month end-of-year internship in Paris, working with data scientists, engineers, and ML engineers to build analytics solutions and explore GenAI use cases.

You will translate business problems into technical tasks and contribute to client-ready insights with mentorship and structured feedback to accelerate your growth. You will gain hands-on experience developing RAG systems, collaborating in interdisciplinary teams, and learning how McKinsey and QuantumBlack

Qualifications

• Recent graduates or final-year students from Cycle ingénieur, Master of Engineering, or PhD programs with expertise in computer science, data, machine learning (MVA), or artificial intelligence
• Strong interest in applying machine learning and statistical analysis to solve real-world problems
• Foundational experience in Python (preferred) or R for data analysis and model prototyping
• Experience through coursework or projects in building Retrieval-Augmented Generation (RAG) systems or implementing Large Language Model (LLM) use cases is a strong plus
• Basic understanding of data wrangling, visualization, and exploratory analysis

Responsabilités

• Support project teams by conducting exploratory data analyses and validating simple models
• Help clients adopt GenAI and develop RAG systems and visualizations
• Contribute to internal knowledge base and tool development
• Translate business problems into technical tasks and deliver measurable client impact

Connaissances

Python

Data analysis

Machine learning

RAG systems

LLM use cases

Visualization

Pandas

NumPy

French-English comms

Formation

Cycle ingénieur

Master of Engineering

PhD

Outils

Git

Jupyter

Python

Description du poste

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.

YOUR IMPACT

Working closely with experienced Data Scientists, Data Engineers, and Machine Learning Engineers, you will support project teams by conducting exploratory data analyses, building and validating simple models, implementing LLM use cases, helping clients to adopt GenAI, and developing RAG systems and visualizations that help uncover insights from complex datasets. You will be part of interdisciplinary teams during an end-of-year internship of 6 months, developing analytics solutions that help solve clients’ most pressing business challenges. You'll gain hands-on experience applying analytical thinking to real-world business contexts, learning how data-driven insights can transform organizations. Through mentorship and structured feedback, you will deepen your understanding of how to translate business problems into technical tasks, and how analytical solutions create measurable client impact. You'll also contribute to the team’s internal knowledge base and tool development, learning how McKinsey and QuantumBlack, AI by McKinsey approach data science at scale.

YOUR GROWTH

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 opportunities you need to become a stronger leader faster than you ever thought possible. Your colleagues—at all levels—will invest deeply in your development, just as much as they invest in delivering exceptional results for clients. Every day, you'll receive apprenticeship, coaching, and exposure that will accelerate your growth in ways you won’t find anywhere else. When you join us, you will have:

• Continuous learning: Our learning and apprenticeship culture, backed by structured programs, is all about helping you grow while creating an environment where feedback is clear, actionable, and focused on your development. The real magic happens when you take the input from others to heart and embrace the fast-paced learning experience, owning your journey.


• A voice that matters: From day one, we value your ideas and contributions. You'll make a tangible impact by offering innovative ideas and practical solutions. We not only encourage diverse perspectives, but they are critical in driving us toward the best possible outcomes.


• Global community: With colleagues across 65+ countries and over 100 different nationalities, our firm's diversity fuels creativity and helps us come up with the best solutions for our clients. Plus, you'll have the opportunity to learn from exceptional colleagues with diverse backgrounds and experiences.


• World-class benefits: On top of a competitive salary (based on your location, experience, and skills), we provide a comprehensive benefits package to enable holistic well-being for you and your family.

YOUR QUALIFICATIONS AND SKILLS

• Recent graduates or final-year students from Cycle ingénieur, Master of Engineering, or PhD programs with expertise in computer science, data, machine learning (MVA), or artificial intelligence


• Strong interest in applying machine learning and statistical analysis to solve real-world problems


• Foundational experience in Python (preferred) or R for data analysis and model prototyping


• Experience through coursework or projects in building Retrieval-Augmented Generation (RAG) systems or implementing Large Language Model (LLM) use cases is a strong plus


• Basic understanding of data wrangling, visualization, and exploratory analysis


• Familiarity with libraries such as pandas, NumPy, scikit-learn, or equivalent


• Good analytical and problem‑solving skills; ability to structure tasks and manage time effectively


• Curiosity and a growth mindset—comfortable asking questions and learning new tools quickly


• Exceptional time management to meet your responsibilities in a complex and largely autonomous work environment


• Willingness to travel


• Team‑oriented mindset and eagerness to learn from others


• Strong communication skills, both verbal and written, in French and English, with the ability to adjust your style to suit different perspectives and seniority levels

FOR U.S. APPLICANTS: McKinsey & Company is an Equal Opportunity/Affirmative Action employer. All qualified applicants will receive consideration for employment without regard to sex, gender identity, sexual orientation, race, color, religion, national origin, disability, protected Veteran status, age, or any other characteristic protected by applicable law.

FOR NON-U.S. APPLICANTS: McKinsey & Company is an Equal Opportunity employer. For additional details regarding our global EEO policy and diversity initiatives, please visit our McKinsey Careers and Diversity & Inclusion sites.