Mariana de Castro Vieira

Embedded PM on a B2B SaaS startup within OpahIT's portfolio, focused on customer service software for digital-first businesses. Owned product discovery, defined KPIs, and partnered with engineers and designers to deliver features.

Led the 0→1 launch of Tap to Pay, a mobile payment product enabling merchants to accept payments without physical hardware. Owned the full product lifecycle from ideation through production, including customer discovery and KPI tracking.

Owned the data product strategy within a large organization, driving data democratization initiatives that improved decision-making across business units. Managed end-to-end product lifecycle and established OKR frameworks.

Drove product delivery within a global B2B enterprise, leading discovery and end-to-end development of a new ServiceNow-based integration product. Launched a client onboarding integration tool that streamlined cross-country service management.

Joined as an early team member at a fintech startup building banking products. Collaborated with PM and UX teams to define requirements, managed backlog prioritization, and contributed to faster iteration cycles.

Completed Digital Product Leadership course from TERA in 2022.

Activities and societies: Bachelor Thesis: Entrepreneurship

Bachelor of Business Administration from Unibero, São Paulo, Brazil, from 2000 to 2003. Coursework included Strategic Management, Marketing, Financial Analysis, and Operations Management.