Sheila Castaldi, Fraud Support Assistant | NUBANK at Nubank

Sheila Castaldi

Fraud Support Assistant | NUBANK at Nubank | São Paulo, São Paulo, Brazil

Profile last verified August 2026
Banking Verified Profile São Paulo, São Paulo, Brazil Universidade UNG
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Personal Email

***@gmail.com

Personal • High Confidence

Phone Number

119*****

Brazil • Mobile

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Sheila Castaldi serves as a Fraud Support Assistant at Nubank, a Brazilian digital banking industry leader that utilizes proprietary technology to simplify financial experiences for millions of users. Based in São Paulo, she earned her degree from Universidade UNG and focuses on monitoring suspicious activity to protect customer accounts within the platform’s high-volume transaction environment. Her operational efforts align with the company’s core objective of removing traditional banking barriers while maintaining rigorous security protocols.

BEST APPROACH TO REACH Sheila Castaldi

Reach out to her via her personal email with a concise, role-specific pitch detailing how your fraud mitigation software or compliance training can directly reduce case resolution times within her daily support queue.

Sheila Castaldi Socials
Sheila Castaldi Work Experience

Fraud Support Assistant | NUBANK at Nubank in September 2022 - Present

Assistente de atendimento ao cliente/Prevenção a Fraudes e investigação interna. at Santander Brasil in October 2011 - June 2022

Analista de atendimento ao cliente at Santander Brasil in October 2011 - June 2022

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Agente de soluções at TIVIT in March 2010 - October 2011

Sheila Castaldi Education

Universidade UNG, Bacharelado, September 2026

Universidade Sant'Anna, Tecnologo, September 2026

Sheila Castaldi Skills
Abertura de chamados de erros e ajustes no Jira Análises de Perfis auto fraudes ( Capital de Giro / auto financiamento Análise de Documentação Mitigar Perdas Financeiras de clientes PF e PJ Bloqueios preventivos e cancelamento de produtos Análise das Informações dos Bureaus Resolução de problemas Criação de relacionamentos Centrais de atendimento Negociação Comunicação interna Trabalho em equipe Gestão de serviços de atendimento ao cliente Análise financeira Suporte ao cliente Capacidade analítica Mídias sociais Satisfação do cliente Recursos humanos (RH) Seguros Cartões de crédito Serviços bancários pela internet Serviços bancários Serviço de atendimento ao cliente (SAC)
About Sheila Castaldi’s Current Company
Nubank

Nu was born in 2013 with the mission to fight complexity to empower people in their daily lives by reinventing financial services. We are one of the world’s largest digital banking platforms, serving more than 100 million customers across Brazil, Mexico, and Colombia. As one of the leading technology companies in the world, Nu leverages proprietary technologies and innovative business practices to create new financial solutions and experiences for individuals and SMEs that are simple, intuitive, convenient, low-cost, empowering, and human. Guided by its mission, Nu is fostering access to financial services across Latin America.

Discover more about Nubank
Sheila Castaldi’s Colleagues
Dayane Cordeiro

Dayane Cordeiro

Belo Horizonte, Minas Gerais, Brazil

Engenheira de Computação | Software Engineer at Nubank

Engenheira de software at Nubank
(September 2024 – Present)

David Zacarias

David Zacarias

Mexico City, Mexico

Head of Creative Marketing | Ex Nu México

Head of Creative Marketing at Nu
(January 2022 – Present)

Lucas Brussolo

Lucas Brussolo

Greater Ribeirão Preto

Business Transformation | Strategic Initiatives | Operational Excellence & Governance | Shared Services (GBS | CSC | SSC) – Nubank

Transformation Officer Specialist at Nubank
(September 2025 – Present)

Alexandre Gabbia

Alexandre Gabbia

Sorocaba, São Paulo, Brazil

Anti-Money Laundering Analyst at Nubank | Regulatory Solutions | CFT | Fraudes e Pagamentos Digitais | KYC | Compliance | Antecipação de Recebíveis | Onboarding

Regulatory Solutions Analyst | Anti-Money Laundering (AML) - Mid-level at Nubank
(May 2025 – Present)

Caio Souza

Caio Souza

Osasco, São Paulo, Brazil

CS - High Income

CS/CX Xspert High Income at Nubank
(March 2024 – Present)

Carolina Andrade

Carolina Andrade

São Paulo, São Paulo, Brazil

Product Manager @ Nubank | Data Scientist | 8x Azure | Power BI | Python

Python/Power BI Tutor (Superprof) at Superprof
(January 2020 – Present)

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Frequently asked questions about Sheila Castaldi

What is Sheila Castaldi email address?

Email Sheila Castaldi at [email protected] and [email protected]. This email is the most updated Sheila Castaldi's email found in 2026.

What is Sheila Castaldi phone number?

Sheila Castaldi phone number is 11947572786.

How to contact Sheila Castaldi?

To contact Sheila Castaldi send an email to [email protected] or [email protected]. If you want to call Sheila Castaldi try calling on 11947572786. (updated on December 26, 2025)

What company does Sheila Castaldi work for?

Sheila Castaldi works for Nubank.

What is Sheila Castaldi's role at Nubank?

Sheila Castaldi is Fraud Support Assistant | NUBANK

What industry does Sheila Castaldi work in?

Sheila Castaldi works in the Banking industry.

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