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QuantumBlack, AI by McKinsey Logo

Data Scientist II – QuantumBlack, AI by McKinsey

QuantumBlack, AI by McKinsey

Salary not specified
Aug 22, 2025
Chicago, IL, US
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To develop impactful advanced analytics and AI solutions, optimize code, and solve complex business challenges across industries for clients

Requirements

  • Professional experience in applying machine learning and data mining techniques to real problems with copious amounts of data
  • Development experience (focus on machine learning): SQL and Python’s data-science stack; proficiency with Spark/PySpark for distributed workloads
  • GenAI experience a plus: parameter-efficient tuning, RAG architectures, vector-store technologies, LLM evaluation

Responsibilities

  • Translate business questions into analytical approaches and select the right techniques for each problem
  • Conduct exploratory data analysis
  • Design, implement, and evaluate models—from traditional machine learning to deep learning to LLMs -- using rigorous metrics and A/B tests
  • Deploy models via APIs or batch pipelines, write unit tests, and set up monitoring dashboards to track performance and drift
  • Document assumptions, communicate results in clear, actionable language, and collaborate with engineers to integrate solutions into user-facing applications
  • Build models which are accurate, explainable, and free from bias

Other

  • Strong communication skills, both verbal and written, in English and local office language(s), with the ability to adjust your style to suit different perspectives and seniority levels
  • Willingness to travel
  • Bachelor’s degree in computer science with 2+ years of professional experience OR Masters or PhD a discipline such as computer science, mathematics, statistics or electrical engineering