Sebastián is the founder of Rollout Democracy, a consulting company, and European Campaign Playbook, a community for communication professionals. He also teaches at the College of Europe.

He began his career in investment banking and technology in London, but after the Brexit referendum he chose a different path: supporting pro-European movements across the UK and the continent, from Romania to Germany to Spain. In 2018, he moved to Belgium to serve as campaign strategist for the European Parliament’s official “This Time I’m Voting” campaign, which achieved the highest voter turnout in European election history.

Sebastián later worked for Renew Europe MEPs as Head of Communications and as an advisor to the pro-European parliamentary group’s secretariat.

Alongside his work in campaigns and communications, Sebastián has developed a strong focus on the use of AI in public affairs, advocacy and communications, having trained over 2,000 professionals across the EU.

Today, he is the trusted campaign advisor of some of the largest European organisations on the continent with more than 15 years of experience.