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Data Scientist/Senior Data Scientist - QuantumBlack

McKinsey & Company

McKinsey & Company

Data Science
Johannesburg, South Africa
Posted on Tuesday, August 29, 2023

Data Scientist/Senior Data Scientist - QuantumBlack

Who You'll Work With

You will join our QuantumBlack, AI by McKinsey Africa team based in Johannesburg.
Our QuantumBlack, AI by McKinsey teams bring the latest analytical techniques plus a deep understanding of industry dynamics and corporate functions to help clients create the most value from data in order to unlock the strategic CEO agenda.
Your role will entail extensive interactions with our global analytics community; partnering with generalist consultants, clients, and other colleagues.

What You'll Do

You will be involved in specific engagements involving the building of new and bespoke advanced analytics solutions for clients. You’ll dive into complex data sets across a rich variety of industries, functions and geographies while remaining a core member of the strategy team, injecting your analytics thinking on meaningful client projects.
You will shape solutions tailored to the needs of our clients, maximizing programming languages (e.g., R, Python), tech platforms, and disruptive analytics methodologies (e.g., Casual Inference, Bayesian Optimization, Geospatial Analytics, Natural Language Processing) as part of our tech-agnostic firm.
As a senior data scientist and consultant, you will have the opportunity to get in-depth exposure to emerging methodologies and programming languages through hands-on client projects, e-learnings, certifications, live bootcamps and global analytics conferences. You’ll also benefit from our established, formal leadership and consulting-toolkit trainings to support your personal and professional goals, from being a data-science manager to a firm partner to a Chief Analytics Officer.


  • Bachelor’s degree in quantitative field like computer science, engineering, statistics, mathematics or related field required; advanced degree is a plus
  • 3+ years of hands-on mathematical modelling experience in business environment
  • Programming (focus on machine learning) in Python (must), SPSS, SAS, Ruby, Hadoop (valued)
  • Data treatment/Data mining SQL, AWK, Access, Spark, Excel (valued)
  • Advanced knowledge of statistical and machine learning techniques (regression, decision trees, clustering, neural networks, etc.)
  • Proven experience in working with large datasets and relational databases (SQL)
  • Distinctive communications skills and ability to communicate analytical and technical content in an easy to understand way
  • Excellent problem-solving and quantitative skills, including the ability to disaggregate issues, identify root causes and recommend solutions
  • Proven leadership with the ability to inspire others, build strong relationships, and create true followership, result-driven achievers
  • Strong people skills, team-orientation, and a professional attitude
  • Experience and interest in RDBMS systems (MySQL, IBM DB2, Oracle Database, etc.), cloud (AWS, Azure, Google Cloud Platform) and big data technologies (e.g. Hadoop, Hive, Impala, Spark, NoSQL DBs) is preferable
  • Experience in data extraction, transformation, cleaning, and validation
  • Experience implementing advanced analytics/data science models into a production environment is a plus

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.

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Job Skill Group - N/A
Job Skill Code - SADS - Data Scientist II
Function - Technology
Industry - Financial Services;High Tech;Metals & Mining;Retail;Telecommunications
Post to LinkedIn - Yes
Posted to LinkedIn Date - Sun Aug 27 00:00:00 GMT 2023
LinkedIn Posting City - Johannesburg
LinkedIn Posting State/Province -
LinkedIn Posting Country - South Africa
LinkedIn Job Title - Data Scientist/Senior Data Scientist - QuantumBlack
LinkedIn Function - Consulting;Engineering;Information Technology
LinkedIn Industry - Banking;Information Technology and Services;Management Consulting
LinkedIn Seniority Level - Mid-Senior level