Looking for a job

Ariel Teixeira

@arielteixeira

Information Security Analyst at Serasa Experian automating exposed-credential analysis across Active Directory and Mainframe environments.

Brazil

Message

What I'm looking for

I'm looking for new challenges in Information Security roles focused on IAM/IGA, PAM, access management, and automation.

At Serasa Experian, I work in Information Security across IAM, IGA, PAM, and process automation. I manage identity and access lifecycle activities, including provisioning, reviews, changes, and revocations.

I use SailPoint, Okta, CyberArk, and Centrify/Delinea across access management environments. I also support the Assurance team in structuring RBAC profiles and permissions.

I developed automation to analyze exposed credentials identified by Axur, using PowerShell and LDAP/Active Directory for validation. I evolved this work to check exposed credentials from external environments against valid credentials in clients’ Mainframe environments.

I also automate processes with Python, SQL, Power Automate, and REST APIs, integrating tools such as ServiceNow, Okta, CyberArk, and Axur. My work includes access governance, audits, operational indicators, incident and request handling, and continuous process improvement.

Experience

Work history, roles, and key accomplishments

Current

Analista de segurança da informação Pleno | IAM

Current

Serasa Experian

Mar 2017 - Present (9 years 8 months)

Atuação em Segurança da Informação com foco em Identity and Access Management (IAM), Identity Governance (IGA), Privileged Access Management (PAM) e automação de processos em ambiente corporativo de grande escala. Gestão do ciclo de vida de identidades e acessos, incluindo provisionamento, revisão, alteração e revogação de acessos, além de atendimento e resolução de requisições, incidentes e mudan

Sailpoint Okta Active Directory Windows Server Linux Unix Exchange Mainframe CyberArk

Delinea Centrify

RBAC PowerShell Python SQL Power Automate REST APIs ServiceNow

Axur

LDAP