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Thiago Ribeiro

@thiagoribeiro1

Enterprise Architect at Reply designing Azure governance and a privacy-focused LLM gateway with PII masking and failover.

Brazil
Message

At Reply, I own Azure architecture governance across IaaS, PaaS, and SaaS, with a focus on security, compliance, and continuous optimization. I record significant architecture decisions in short ADRs and help prioritize client initiatives against risk and delivery constraints.

At Reply, I reviewed a client’s Key Vault secrets management for a CI/CD pipeline, documenting recommendations for OIDC chain of custody, least-privilege scope, rotation, and audit logging. I also made Entra ID identity work a security gate for a cloud data-platform migration and hardened a BI integration’s access model.

At Angola Cables, I managed and supported Clouds2Africa and Clouds2Brasil, drove Infrastructure as Code adoption, and consulted on secure, cost-effective cloud architectures. Earlier, I led an Exchange on-premises to Exchange Online migration and an MS Teams VOIP implementation.

In my self-directed AI architecture lab, I designed and tested an LLM gateway using LiteLLM and Presidio, with PII masking, multi-model routing, failover, audit logging, and a cost cap. I also assessed a multi-agent platform and audited an AI-assisted alert-triage pipeline, finding correctness defects including fabricated evidence.

Experience

Work history, roles, and key accomplishments

Angola Cables logoAC

Cloud and System Architect

Angola Cables

Jul 2022 - Jul 2024 (2 years)

Administered identity and access across virtualization (VMware) and Microsoft services (Exchange, Active Directory, ADFS, WSUS, Skype for Business). Administered Azure and Office 365 cloud solutions and access governance; planned and implemented new company solutions.

Angola Cables logoAC

System Administrator

Angola Cables

Aug 2012 - Jul 2018 (5 years 11 months)

Planned and implemented a redundant two-site technology infrastructure (Active Directory, Exchange, SharePoint, Skype for Business, backup); migrated users to Skype for Business Online and VOIP; set up networking for the main office.

CI

System Administrator

Capitolium Internacional

Jan 2003 - Dec 2012 (9 years 11 months)

System Administrator roles covering Windows server administration, Exchange deployment, and secure network infrastructure setup.

WC

System Administrator

Wavephase Consulting

Jan 2003 - Dec 2012 (9 years 11 months)

System Administrator roles covering Windows server administration, Exchange deployment, and secure network infrastructure setup.

Education

Degrees, certifications, and relevant coursework

FL

Faculdade Líbano

Data Science and Artificial Intelligence, Data Science and Artificial Intelligence

2026 -

Pursuing a Data Science and Artificial Intelligence program, expected to complete in December 2026.

BC

Boston City Campus

Network Specialist, Network Specialist

2010 - 2011

Completed a Network Specialist program with MCSA certification.

University of South Africa logoUA

University of South Africa

2001 - 2007

Attended the University of South Africa from 2001 to 2007.

IT

ITXPRO

Leadership & Career Mentoring, Leadership & Career Mentoring

Completed a Leadership & Career Mentoring program.

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