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McKinsey & Company

Principal Data Scientist I - Platform gen AI

McKinsey & Company
Portugal · Full-time · Executive

Who You'll Work With

You are someone who thrives in a high-performance environment, bringing a growth mindset and entrepreneurial spirit to tackle meaningful challenges that have a real impact.

In return for your drive, determination, and curiosity, we’ll provide the resources, mentorship, and opportunities to help you quickly broaden your expertise, grow into a well-rounded professional, and contribute to work that truly makes a difference.

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. Plus, you’ll have the opportunity to learn from exceptional colleagues with diverse backgrounds and experiences.
  • Exceptional 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 Impact

As a member of the Gen AI team, you will collaborate with the Client Capabilities Network team to deliver state-of-the-art generative AI automations.

You will experience what it’s like to develop a generative AI product with a firm-wide impact. You’ll join a cross-functional team of data scientists, engineers, designers, and product managers working on a high-priority initiative. Leveraging cutting-edge technology, we aim to revolutionize how we conduct and synthesize knowledge research, enabling firm members to deliver impactful stories effortlessly.

You will work hands-on with the latest multimodal LLMs, conducting experiments and deploying production pipelines that utilize generative models (such as GPT-like models) for automating knowledge search, curation, and synthesis processes. This includes model training, fine-tuning, evaluation, and iteration, enhancing creativity and content generation.

You’ll work with the generative AI team focused on AI platforms or products. Our team is distributed across multiple locations, including offices in North America, Europe, and Latin America.

The generative AI team is dedicated to advancing the capabilities and applications of data retrieval and Generative AI within our firm, driving innovation, and delivering impactful AI solutions.

PlatformDSPM

Your Qualifications and Skills

  • 8+ years of experience as a Data Scientist
  • Deep theoretical and practical knowledge of NLP, Transformers, LLMs, and generative AI
  • Required experience with OpenAI’s GPT suite, including previous experience with their multimodal LLMs: GPT4V, GPT4o
  • Theoretical understanding of how LLMs can be leveraged to build classification models, re-rankers, and recommendation systems
  • Strong programming skills: well-versed with building end-to-end data models and pipelines in Python according to the best engineering practices
  • Experience managing a Git repository - maintaining effective version control with organized & clean branching strategies

Key Skills

Ranked by relevance

ai python git
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Posted
Jun 28, 2025
Type
Full-time
Level
Executive
Location
Lisboa

Industries

Software Development IT Services IT Consulting Business Consulting Services

Categories

Information Technology

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