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Data Scientist II – QuantumBlack, AI by McKinsey

McKinsey & Company

Salary not specified
Sep 20, 2025
Atlanta, GA, US
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The company is looking to solve complex and pressing challenges across industries by developing impactful advanced analytics and AI solutions, optimizing code, and solving complex business challenges.

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
  • Technologies you may encounter include Airflow, Databricks, Dask/RAPIDS, containerization with Docker and Kubernetes, and the major clouds (AWS, GCP, Azure, Oracle)
  • GenAI experience a plus: parameter-efficient tuning, RAG architectures, vector-store technologies, LLM evaluation
  • Proficiency with SQL
  • Proficiency with Python’s data-science stack
  • Experience with Spark/PySpark for distributed workloads

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
  • 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
  • Optimize inference latency and cost through parameter-efficient tuning, quantization, and accelerated serving stacks

Other

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