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
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
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
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
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
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
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.