Ignacio Castro is a Lecturer in Data Analytics at Queen Mary University of London. He obtained his PhD while researching at the Institute IMDEA Networks (Madrid, Spain), and visiting UC Berkeley (California, USA).

His work sits at the intersection between economics and networks. His interest spans from online social networks and moderation to the macroscopic evolution of the Internet. He chairs the Research and Analysis of Standardisation Processes (RASP) Research Group at the IRTF and has been an investigator on three major EPSRC grants that hold over £6 million in funding. His work appears in top-tier journals and conferences including Web Conference, ACM SIGCOMM, ACM SIGMETRICS, ACM IMC, ICWSM, and IEEE/ACM Trans. on Networking. He also serves in TPCs and organises top-tier conferences including IMC, CoNEXT, and SIGCOMM.