Omar Voos Isfer

EXPERIENCE AND BACKGROUND

Arbitration, Litigation and Dispute Resolution

Omar Voos Isfer is an associate at Castineira with experience in dispute resolution and in representing companies in commercial, investment, and sports arbitration proceedings, including arbitrations under ICC, CIAM, BAT, and CCB rules. His practice focuses particularly on disputes in the construction, industrial, and entertainment sectors.

Prior to joining Castineira, Omar Voos Isfer gained arbitration and litigation experience in companies such as Técnicas Reunidas and working as tribunal secretary in Spain and abroad.

Omar Voos Isfer is fluent in Portuguese, English and Spanish.

He is admitted to practice in Brazil (OAB), Spain (ICAM), and Portugal (OA) and holds two Master’s degrees.

Career History

• Associate, Castineira Law (since January 2026)
• Tecnicas Reunidas S.A (Madrid), International Arbitration Department (January 2022 – October 2023)
• Hendel IDR (February 2021 – January 2022)

Qualifications

• Spain Bar admission (2024)
• Portugal Bar admission (2022)
• Brazil Bar admission (2018)
• Master’s in International Advocacy, Universidad Carlos III de Madrid (2020)
• Master’s in International law, Foreign Trade and International Relations, ISDE (2019)
• Licence, Centro Universitario UNICURITIBA (2018)