BCG GAMMA Senior Data Scientist, Paris
Visionaries finden sich auch in einer komplexen Welt sofort zurecht. Sie erkennen schnell, welche Lösungen bleibende Werte schaffen – dank analytischem Blick und dem richtigen Gespür. Olivier erkennt in den Details das große Ganze.
The best part of working at BCG GAMMA is the family spirit we have. For each mathematical challenge we face, we know there will be a scientific expert on the team who will be thrilled to help us, by brainstorming on the topic and teaching us the relevant knowledge.
My background is in machine learning, statistics, and economics. Since I joined BCG, I have had the opportunity to apply my expertise to solve various business strategy issues—from optimizing digital marketing spending for a global fast-moving consumer goods leader to optimizing assortment buying and store allocation for a large retailer and planning production for a steel manufacturer.
At BCG, the challenges we solve are always complex, and they sometimes even seem impossible. But when you dig deeply enough into the client’s organization, meet people from different departments, and collect and analyze the right data, you always see many opportunities to improve the client’s current ways of doing things. It’s highly rewarding to actually make these improvements, by building and testing advanced models and implementing them in the organization to see their full potential coming true.
Olivier holds a master’s degree in applied mathematics and computer science from CentraleSupélec and a master’s in digital economics from Télécom ParisTech and École Polytechnique.
Q: Why did you choose to work at BCG GAMMA?
A: I joined BCG three years ago after working in a startup, building artificial intelligence products. At that time, a group of BCG partners were assembling a team of data scientist consultants within BCG to help their clients become more data-driven. This challenge was really what I was looking for—applying mathematics and economics models to solve strategic business problems in various industries and functions. I joined what became BCG GAMMA soon after, as the first data scientist in the Paris hub.
Q: How does GAMMA fit into BCG as a whole?
A: At BCG we solve several types of problems related to HR, IT, mergers and acquisitions, and so on. Within GAMMA, we focus on problems where advanced analytics is key, such as sales and pricing optimization, supply chain planning, fraud detection, and routing optimization. We build advanced models that will create a competitive advantage for our clients. However, the way we work is the same as other BCG consultants: staying close to the client, focusing on what brings the most value, and suggesting new ways of working. We usually work together as one team with general BCG consultants, as well as digital or IT experts. Where GAMMA focuses on the modeling, they concentrate on change management or implementation of new solutions. These hybrid teams are highly valuable for our clients and for us, as we learn a lot from each other.
Q: What do you like most about your job?
A: Designing the right model to crack the case is probably what I like most. When we start a project, the problem we have to solve is never well defined, and we never know the solution in advance. Most of the time, there is high uncertainty about the solution itself, including the value that it will bring. We spend the first weeks of the project trying different approaches, brainstorming with peers, benchmarking several algorithms and methods, and checking if they could be accurate enough, if they could fit with the client’s current processes. Ensuring that initial ideas become actual models that are implemented is another exciting challenge.
Q: How has BCG helped you grow and succeed?
A: I have learned a lot from the people I have met and worked with since I joined BCG. When I started here, my mentor told me that exposure to role models is one of BCG’s biggest strengths, and that everyone has a special quality or knows something that I should try to learn. I see that every day, whether it is a senior data scientist who knows exactly how to model an economic problem or a junior consultant who has a naturally innovative way of thinking—everyone can teach me something.
Q: If you weren't working at BCG, what would you be doing?
A: Aside from BCG, I have a strong interest in art and psychology. If I weren’t at BCG, I might be studying one of these topics in more depth and doing something totally different from artificial intelligence and consulting. Maybe closer to what I am currently doing, I would also enjoy teaching mathematics to students. I have had the opportunity to teach a few master classes through partnerships we have with universities, and I found those experiences very rewarding.