Sebastien Marc

Enigma
DISC Type : dic

Head of Index Engineering | CTO at FTSE Russell, An LSEG Business

Geneva, Geneva, Switzerland

Overview

Sébastien is the Head of Index Engineering and CTO at FTSE Russell, leveraging over two decades of experience in building financial systems. He specializes in technology transformation, data quality, and automation, previously helping to scale MSCIs index, ESG, and real estate franchises. People who have worked with him describe him as a "brilliant engineer" and a "great manager".

With a passion for technology that extends to his family, Sébastien proudly supports the next generation of engineers, celebrating his sons recent graduation in the field. He is focused on making the financial markets better for all investors through technological innovation and world-class leadership.

After 20 years at MSCI, he joined LSEG, the parent company of a business he started his career with (Reuters), describing the move as a homecoming.

Personality Overview

Hard To Convince

Fast Follower

Friendly Yet Blunt

They are likely to ask many questions and look heavily for supporting proof as well as information.  They can sound friendly and charming but can quickly change gears to become inquisitive and probing  They are generally strong communicators and are not easy to convince.

Topics They Care About

AI in Finance
Spoke at the AM Tech Days conference about AI and Indexes and has posted about getting serious with AI, indicating it's a key focus area.
Cloud & API Distribution
He is actively investing in and hiring for teams building modern, cloud-native API distribution for financial indexes, a key strategic priority for his team.
Technology Transformation
His career includes leading major technology transformations for index, real estate, and ESG product lines at both MSCI and now FTSE Russell.

Media Appearances

Sebastien has no verified media appearances

Work History

10-2024
Head of Index Engineering | CTO at FTSE Russell, An LSEG Business
1-2023 - 10-2024
Head of Technology Strategy at UBP - Union Bancaire Privée
1-2017 - 6-2022
Managing Director at MSCI Inc.
12-2012 - 3-2015
Executive Director at MSCI Inc.
10-2004 - 12-2012
Executive Director at MSCI Inc.

Education

Education details unavailable from EFREI - Grande école du numérique

More Information

Social Presence :

Prographics :

Exp : 18 Location : Geneva, Geneva, Switzerland Job Level : Leadership Designation : Head of Index Engineering | CTO at FTSE Russell, An LSEG Business
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Insights For Selling To Sebastien

During A Call Or A Meeting

DO's

  • Build rapport slwly without rushing, it will come handy to handle hard questions later
  • Let them lead the discussion, create opportunities for them to speak if they are not very forthcoming
  • Help them realize that any personal risk in making this decision is far less compared to what the results could mean for them

DONT's

  • Don’t brush off any concerns, take all questions seriously. They are easily deterred
  • Avoid long presentations and just 'high-level' value proposition, dive into the details
  • Don’t be too objective but make sure to pad your storytelling with data points

When Cold Calling

When Writing An Email

While Negotiating & Closing

    The secret to closing fast with Sebastien is

  • Proven value, strong objective evidence are important for them, rapport can impact decisions a little.
  • Will you ever get a clear answer from Sebastien

  • They are practical and friendly, but can give a clear response with a little prodding

Insights For Deal Planning

    How fast (or slow) will Sebastien move?

  • They like to be detailed, so unless they develop strong conviction, they can take their time to arrive at decisions
  • Can Sebastien take some risk or not?

  • They evaluate their decisions systematically and do not take risks that often, unless you can get them to develop strong conviction

You And Sebastien

Personality Compatibility


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