[4] He has then undertaken a PhD in Social Simulation at the department of Software Engineering and Artificial Intelligence of UCM, supervised by the computer scientist Juan Pavón and the sociologist Millán Arroyo-Menéndez.

[5] He has been researching in several institutions, funded by several scholarships and awards, most notably Harvard's Real Colegio Complutense,[6] and the Spanish postdoctoral grants Juan de la Cierva and José Castillejo.

[17][18] He has co-organized practitioner-oriented workshops on platform co-ops[19] and free/open source decentralized tools for communities,[20] and has presented his work in non-academic conferences of Mozilla,[21] the Internet Archive,[22] and others.

His methodological work also explored the combination of different Artificial Intelligence technologies, i.e. software agents with fuzzy logic, data mining, natural language processing, and microsimulation.

[47] As part of this research line, Hassan's team also develop two SwellRT-based apps, "Teem" for management of social collectives[48][49][50] and Jetpad, a federated real time editor.

[64] His team pushed forward a mapping of the ecosystem of blockchain for social good, led by the Joint Research Centre and published by the European Commission.

[65] As part of his ERC project P2P Models, Samer Hassan and his team –including Silvia Semenzin– are investigating whether blockchain technology and Decentralized Autonomous Organizations could contribute to improving the governance of commons-oriented communities, both online and offline.

[29] Their work has been showcased for tackling the impact of blockchain on governance,[66][67][68] proposing alternatives to the current sharing economy,[69][70][71][72][73] emerging forms of techno-social systems like NFTs,[74][75] or giving relevance to gender issues in the field.