Thiago Alexsander Luiz
@thiagoalexsanderluiz
I build secure, reliable cloud delivery systems across DevSecOps, SRE, and security.
BrazilWhat I'm looking for
I've supported approximately 50 production environments serving 400+ cloud clients at WK Sistemas, using Azure and PRTG monitoring to track SLIs/SLOs, identify incidents, and maintain availability.
At Senior Sistemas, I've performed 15+ penetration tests across ERP, HCM, Ronda Senior, Senior X Platform, and TSplus environments. I automated testing and validation with Claude Code and Hermes Agent, increasing throughput from one to three or four pentests per week while contributing to an estimated 25% improvement in application security.
I've also implemented Azure DevOps CI/CD pipelines, integrated DevSecOps and Secure SDLC practices, remediated insecure AWS bucket policies with Python and Terraform, and advised engineers on secure coding, Security by Design, STRIDE, and Shift-Left Security.
Experience
Work history, roles, and key accomplishments
Security Analyst (Pentester) - Senior Sistemas S/A
Senior Sistemas S/A
Apr 2026 - Present (4 months)
Performed 15+ penetration tests across ERP, HCM, Ronda Senior, Senior X Platform, and TSplus environments, identifying, remediating, and retesting critical and high-severity vulnerabilities using OWASP WSTG. Automated testing and validation with Claude Code and Hermes Agent, using DeepSeek V4 Pro to reduce AI costs and increase throughput from 1 to 3–4 pentests per week without compromising qualit
Education
Degrees, certifications, and relevant coursework
UNICIVE - Centro Universitário Cidade Verde
Undergraduate Program, Information Security
2024 -
Undergraduate program in Information Security, expected to complete in April 2027.
Tech stack
Software and tools used professionally
Availability
Location
BrazilAuthorized to work in
Job categories
Skills
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