Consultants in data science have become an essential occupation for contemporary companies, especially for those expanding their activities online. They will be solicited to transform data into usable information, allowing organizations to direct their marketing, sales and communication strategies.

Consultants in data science - statistic experts

Consultants in data science will guide their companies in their projects of data analysis and valorization to address the issues of standard compliance, security and competitivity. These professionals usually operate from the analysis of the needs until the implementation of solutions, in compliance with requirements and objectives of the companies. They take on a transversal approach of data-related issues.


The mission of consultants in data science is to collect, organize and exploit data. Companies expanding their online activities accumulate a significant amount of data: experts in data science will interpret them in order to translate them into usable elements to drive decision-making.


As consultants, they usually work as free-lancers, and will focus on one-time projects or potentially, collaborate on various projects simultaneously for different companies.

Consultants in data science - Main missions

Consultants in data science process customers’ data, in sales, users’ tracks, from various online platforms, partners etc. for marketing purposes:

  • They collect the most relevant data available on servers, in files, databases, then “clean” them. They delete unusable data and transform the usable ones in a format a non-expert audience can understand.
  • They then proceed to issue the results into reports, graphics, tables or applications.


Consultants in data science are expected to issue different kinds of deliverables for the purpose of:

  • Structuring data governing;
  • Designing data quality policy;
  • Creating data visualization;
  • Algorithm programing;
  • Gap analysis.

Consultants in data science - Required competences

Consultants in data science need to have a solid background in mathematics, computing, econometrics, signal processing, statistics, and operational research.


Knowledge in the implementation of solutions based on machine learning and artificial intelligence can be a considerable additional asset complementing these competences.


They also need to demonstrate a good understanding of the practices in data processing, ranging from data collection to acquisition, and from formatting, modeling, data analysis, and processing up to result output.

Consultants in data science - Which training program

To acquire a solid background in mathematics, statistics and computing, data-science consultant candidates need to take the appropriate training program.


At emlyon business school, the BSC, Bachelor of Science Data Science for Responsible Business is the ideal training program.


The Bachelor of Science in Data Science for Responsible Business is a post-baccalaureate 4-year program providing high-quality, multidisciplinary learnings. The program is taught in English.


It was designed for Baccalaureate-graduate students with a major in mathematics and sciences, to provide them with a hybrid education in data science and management.


It relies on the joint expertise of two prestigious institutions: emlyon business school and the École Centrale de Lyon. Both schools are among the best in France and in Europe, renowned for their academic excellence and their contribution to research output. Not only will students be taught by top-tier professors, but they will also be provided with dedicated services for their well-being and employability, along with unique learning spaces.

Consultants in data science - Salaries and career evolutions

Gross salary for junior consultants in data science is around €3.500 a month. After a few years of experience, gross salaries can reach a monthly €5.000.


Throughout their careers, consultants in data science can claim positions of data analysts or go towards revenue management. They can also become heads of CRM departments.

About emlyon business school

emlyon business school currently has 4 campuses (Lyon, Paris, Shanghai, Mumbai), with over 9.000 students from 125 different nationalities in higher education programs. The School also accounts for 6.900 participants in executive education programs, and close to 200 international academic partners. With the triple-crown accreditation, emlyon business school ranks among the best business schools worldwide.