John Henry Castellanos Alvarado

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PhD Student

Pillar / Cluster: Information Systems Technology and Design


Assistant Professor Martín Ochoa


John Henry is currently a PhD student at the Singapore University of Technology and Design, under the supervision of professor Martín Ochoa. in 2015 John Henry received his MSc degree in Information Security at Universidad de Los Andes (Bogota, Colombia). Before he studied Electronics Engineering at Universidad Francisco de Paula Santander (Cúcuta, Colombia). He has over seven years of experience in several industries such as Automation, Telecommunications, Datacenter and Cybersecurity.

Research Interests

  • Cyber-Physical Systems security
  • Insider threat detection


  • MSc in Information Security – Universidad de los Andes (2015)
  • B.Eng in Electronics Engineering – Universidad Francisco de Paula Santander (2006)

Working Experience

  • Research assistant – iTrust (SUTD) (2016)
  • Information Security consultant – IT Security Services (ITSS) (2015)
  • IT and Information Security Specialist – Claro Colombia (2010-2015)
  • Communications supervisor – Gilat Colombia (2006-2008)
  • Automation engineer – ATIX Colombia (2006)


  • President’s Graduate Fellowship (SUTD)
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