About · Leadership

Meet the people driving our solutions

An experienced team with a strong academic background, international experience and strategic roles in healthcare companies — combining medicine, physics, epidemiology, pharmacoeconomics and data engineering.

Executive team

Leadership

Julio Cesar Barbour Oliveira

Julio Cesar Barbour Oliveira

CEO & Founder
  • Over 10 years of experience in healthcare data management, with a unique academic background in Medicine and Physics.
  • Recognized as a leading expert in health data science in Brazil, specializing in data engineering, architecture and the OMOP Common Data Model.
  • Proven track record delivering complex data-driven projects for healthcare and life sciences.
Gabriela Naomi Ishibe

Gabriela Naomi Ishibe

COO
  • Over 10 years in the pharmaceutical industry, spanning marketing, PMO, clinical trials and RWE.
  • Trilingual (Portuguese, English, Spanish) with excellent communication and stakeholder engagement skills in international projects.
  • Leads cross-functional teams, aligning business strategy with operational efficiency.
Tulio Sarmento

Tulio Sarmento

Head of Technology
  • Data architect with a master's degree in Pharmacoeconomics and over six years in Market Access, Health Economics and RWE analysis.
  • Deep expertise in data science (R, Python, Databricks) and data engineering (PySpark, Cube).
  • Builds cost-effectiveness and budget impact models and HTA reports supporting decisions in public and private healthcare.
Science and projects

Scientific and evidence team

Ana Bierrenbach

Ana Bierrenbach

Leading Scientist · RWE
  • Medical Doctor with a PhD in Infectious Disease Epidemiology from the London School of Hygiene & Tropical Medicine and over 80 published papers in global health.
  • Extensive experience leading large-scale epidemiological studies and RWE projects for top universities, governments and international organizations (WHO, PAHO).
  • Expert in secondary health data analysis and advanced quantitative methods.
Renata Ferreira

Renata Ferreira

Project Manager
  • Health policy and evidence generation professional with 8+ years of experience across consulting and data-driven projects, including Market Access and RWE initiatives.
  • Skilled in translating complex evidence into clear, decision-oriented insights for academia, industry and health systems.
Daniela Mayumi

Daniela Mayumi

RWE Consultant
  • PhD and postdoctoral researcher in Nutrition Science. Works on clinical studies, RWE research and systematic reviews.
  • Collaborated with Brazil's Ministry of Health and PAHO and published over 30 scientific papers.

Want to talk to the team?

About a study, the Platform or a data partnership.