GUE Instructor resumé

View Scheduled Classes

Classes I teach:
Discover Diving
Recreational Supervised Diver
Recreational Diver 1 - Nitrox
Recreational Diver 2 - Triox
Recreational Diver 3 - Trimix
GUE Fundamentals
Doubles Diver
Drysuit Diver
Navigation Primer
Rescue Primer
Triox Primer
DPV Diver 1

Sergio Rhein Schirato

Sao Paulo, Brazil
Miami, United States


  • Managing director of Daemon Investimentos
  • Researcher at the laboratory of energetics and theoretical physiology of the Biosciences Institute of the University of Sao Paulo
  • More than 20 years of experience in investment banking, F/X, derivatives and quantitative trading
  • Active scuba dive instrutor since 1998


  • BS in Business Administration, Pontifícia Universidade Católica, Sao Paulo - Brazil
  • Graduate in Finance, Instituto Brasileiro de Mercado de Capitais - “IBMEC” (currently Insper)
  • MBA jointly granted by New York University - Leonard Stern School of Business, London School of Economics and Political Sciences and HEC Paris
  • Latu Senso post-graduate in Applied Math
  • PhD, University of Sao Paulo (USP)

Diving Qualifications

  • Scubar diver since 1988
  • More than 5.000 dives
  • GUE Fundamentals Instructor
  • GUE Tech 2
  • GUE Cave 2
  • GUE Rebreather Diver / CCR Cave
  • PADI Open Water Instructor
  • NSS Full Cave Diver
  • DAN BLS and Advanced Oxygen First Aid Instructor


  • Heart rate variability changes as an indicator of decompression related physiological stress, UHM 2018, VOL. 45, NO. 2
  • Decompression: Revisiting old assumptions, Quest Magazine, VOL. 20, 2019
  • Association Between Heart Rate Variability and Decompression-Induced Physiological Stress, Front. Physiol., 11:743.
  • Heart Rate Variability: What it is and Why it Matters, InDepth (, 8/03/2020

Languages I teach classes in

  • English
  • Portuguese

Additional languages

  • English
  • Portuguese
  • Italian - good understanding