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Mara SampaioMS
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Mara Sampaio

@marasampaio

UX Design Lead at Fiserv, driving growth and efficiency across Clover Brazil, Latam, and Smart POS.

Brazil
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At Fiserv, I led a three-person design team driving growth and efficiency across Clover Brazil, Latam, and Smart POS.

At Santander, I led the Intelligent Product Showcase and credit acquisition flows, increasing funnel conversion by 450%. I also led Pix Automático for individuals and businesses, launching 30 flows and opening a new revenue stream.

At Mercado Livre Brasil, I was the Design focal point for creating and integrating Open Finance features in Mercado Pago; the experience placed second at the Open Summit Awards’ 2022 Case of the Year. I also contributed to restructuring Pix to improve consistency across its ecosystem.

Earlier, at Zoom & Buscapé, I led the UX initiative for a white-label platform integrating the two services, which doubled revenue with the same maintenance cost structure. My work has also included account experiences across Globo’s digital products and involvement in the launch of Oi Mod and Joice.

Experience

Work history, roles, and key accomplishments

Fiserv logoFI

UX Design Lead

Feb 2026 - Sep 2026 (7 months)

Led a 3 person design team, driving growth and efficiency across Clover Brazil, Latam, and Smart POS.

Outsourced by Badaró.

Santander logoSA

Growth Lead

Nov 2024 - Oct 2025 (11 months)

Strategic Leadership & People Management: Led a lean, multidisciplinary team (7 professionals across Design, Data Analytics, Marketing and Business), covering hiring, career development, performance rituals, strategic prioritization, and team scaling.

Strategic Use of AI Tools: Leveraged AI to accelerate discovery, support product decision-making, optimize experimentation, and increase efficiency

Santander logoSA

UX Design Lead

Nov 2023 - Nov 2024 (1 year)

Business Impact & Growth: Led the Intelligent Product Showcase and credit product acquisition flows, achieving a 450% increase in funnel conversion, directly impacting bank revenue.

Led Pix Automático for individuals and businesses, launching 30 flows and inaugurating a new revenue entry.

Mercado Livre Brasil logoMB

Senior UX Designer

May 2021 - Nov 2023 (2 years 6 months)

Senior UX Designer dedicated exclusively to the company's financial app, Mercado Pago. Recognized internally as a culture carrier and knowledge multiplier.

Initiative Leadership: Served as the Design focal point for the creation and integration of Open Finance features — an experience awarded 2nd place at the Open Summit Awards (2022 Case of the Year) — and for the restructuring of Pix, ensuring

Globo.com logoGL

Senior UX Designer

Jun 2020 - May 2021 (11 months)

Globo.com is the digital arm of Grupo Globo, the largest media conglomerate in Brazil.

Account Experience Ownership: Responsible for Conta Globo, including authentication and account management across Globo's digital ecosystem (web, mobile, and Smart TVs). Contributed to the standardization of experiences for millions of users across multiple Globo digital products, decreasing login errors and in

Zoom & Buscapé logoZB

Senior UX Designer

May 2018 - Jun 2020 (2 years 1 month)

Mosaico is a leading Brazilian e-commerce comparison and content platform.

Integration and Revenue Strategy: Led the UX initiative for creating a white-label platform that integrated Buscapé with Zoom in 4 months, resulting in a doubling of revenue with the same maintenance cost structure.

Traffic and Content Optimization: Restructured the experience for integrating the offer search engine with

Oi S.A logoOS

Senior UX Designer

Jul 2016 - May 2018 (1 year 10 months)

Oi is one of the largest telecommunications companies in Brazil.

Member of the first Digital New Products team, involved from ideation to the launch of the Oi Mod application and the first launch of Oi's Artificial Intelligence customer service, Joice.

YDreams Global logoYG

UX Designer

Apr 2015 - Jul 2016 (1 year 3 months)

Worked as UX Designer at YDreams Global.

Mosaico logoMO

Arquiteta de informação

May 2012 - Jan 2014 (1 year 8 months)

Worked as Arquiteta de informação at Mosaico.

Infoglobo logoIN

Web Designer

Jan 2011 - Jun 2011 (5 months)

Worked as Web Designer at Infoglobo.

Contágio Criação logoCC

Web Designer

Nov 2008 - Oct 2010 (1 year 11 months)

Worked as Web Designer at Contágio Criação.

Education

Degrees, certifications, and relevant coursework

PM

PM3

Product Management

Issued Jan 2026

FI

FIAP

Growth Hacking: Experimentação, Processos e Estratégias

Issued Jun 2025

SN

Saint Paul Escola de Negócios

International Executive MBA, Liderança e Gestão

2022 - 2024

OB

Observe

Observe 2020: Conferência Brasileira sobre Pesquisa de Experiência

Issued Oct 2020

IF

IxDF - Interaction Design Foundation

Design Thinking

Issued May 2019

IF

IxDF - Interaction Design Foundation

Conducting Usability Testing

Issued Apr 2019

PJ

Pontifícia Universidade Católica do Rio de Janeiro

Pós graduação, Ergodesign de Interfaces: Usabilidade e Arquitetura de Informação

2012 - 2013

PJ

Pontifícia Universidade Católica do Rio de Janeiro

Graduação, Desenho Industrial, Comunicação Visual

2005 - 2010

Tech stack

Software and tools used professionally

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