From January 2013 to September 2015, Verdier headed Etalab, the Prime Minister's office in charge of opening public data.

Under his direction, Etalab developed a new version of the French national open data portal  "data.gouv.fr", which hosts many public datasets.

Continuing the commitment of the Etalab mission to open code,[7] data and algorithms, DINSIC lays the basis of government as a platform (France Connect, api.gouv.fr, National Database addresses) and promotes a strategy within the State for the re-insourcing of resources and the use of agile methods.

[8] As Director of Mission at Etalab, Verdier actively worked towards France joining the Open Government Partnership (OGP) in 2014.

As ambassador for digital affairs, Verdier was the French negotiator in charge of preparing the Christchurch Call Summit.