O Iniciador Strengthens Open Finance Leadership with Ranieri Mazili
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Iniciador Strengthens Open Finance Leadership with Ranieri Mazili

The former Febraban consultant will lead regulatory relations and innovation for the fintech.

3/7/2026
Chaimae Elfathi
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O Iniciador, a prominent Brazilian Open Finance and Pix infrastructure specialist, has appointed Ranieri Mazili as its new Head of Open Finance for Regulatory Relations & Innovations. This strategic hire leverages Mazili's experience, including his advisory role with the Brazilian Federation of Banks (Febraban). The move signals the company's intent to deepen its engagement with the rapidly evolving financial ecosystem and its regulatory bodies.


A Strategic Appointment for a Growing Ecosystem

In his new capacity, Mazili will spearhead the company's institutional relationship strategy with regulators, industry associations, and other market participants. He is also tasked with leading regulatory innovation by monitoring public consultations and proposing technical improvements. His work will help develop new operational models within the Open Finance framework, keeping O Iniciador at the industry's forefront.

Mazili brings relevant experience to the role, having been involved in the foundational discussions that shaped Open Finance in Brazil. As a consultant for Febraban, he played a crucial part in the system's technical and regulatory implementation. His background also includes nearly a decade at GFT Technologies, providing him with a strong foundation in financial technology.

Reinforcing Market Leadership

This appointment reinforces O Iniciador's dominant market position as the largest Payment Transaction Initiator (ITP) by API call volume. The company's influence is highlighted by the fact that one in every three Pix payments via Open Finance in Brazil is processed through its infrastructure. This leadership provides a powerful platform for Mazili's new strategic and regulatory engagement efforts.

Marcelo Martins, CEO and co-founder of O Iniciador, commented on the strategic importance of the hire. "Ranieri's arrival strengthens our strategy of active participation in Open Finance, with broad dialogue between regulators, participants, and financial institutions," he stated. Martins added that Mazili's contacts and expertise are a valuable addition to the company's established team of specialists.

Mazili's hiring is part of a broader trend of strengthening the company's leadership to support its rapid growth. This follows the recent appointment of Gabriel Napchan as the new Chief Operating Officer. These key additions demonstrate O Iniciador's commitment to scaling its operations for major clients like Stone and iFood Pago.

Capitalizing on Open Finance Maturity

The timing aligns with the significant maturation of Brazil's Open Finance system, which now boasts over 100 million active consents. The platform facilitates billions of API calls weekly and processes substantial monthly payment volumes, indicating widespread adoption. This robust environment creates new opportunities for innovation that O Iniciador is poised to capture.

With the regulatory agenda advancing and new use cases emerging, Mazili's expertise is particularly valuable. His understanding of governance, standardization, and institutional dialogue will be critical for navigating the next phase of development. This allows O Iniciador to not only adapt to changes but also to contribute to future financial frameworks.


The appointment of Ranieri Mazili is a clear statement of O Iniciador's ambition to lead the evolution of Brazil's financial landscape. By integrating high-level institutional strategy with profound technical insight, the company is solidifying its role as a key architect of the future of Open Finance. This move positions O Iniciador to drive further innovation and expand the system's impact across the market.