Senior Information Security Analyst (remote in Brazil)

About this role

KnowBe4 empowers the modern workforce to make smarter security decisions every day. Trusted by more than 70,000 organizations worldwide, KnowBe4 is the pioneer of digital workforce security, securing both AI agents and humans. The KnowBe4 Platform provides attack simulation and training, collaboration security, and agent security powered by AIDA (Artificial Intelligence Defense Agents) and a proprietary Risk Score. The platform leverages 15-years of behavioral data to combat advanced threats including social engineering, prompt injection, and shadow AI.

By securing humans and agents, KnowBe4 leads the industry in workforce trust and defense. Please submit your resume in English. To learn more about our team and office culture in São Paulo, Brazil, visit the following links. Careers Page: https://www.knowbe4.com/careers/locations/sao-paulo Glassdoor : https://www.glassdoor.com/Location/KnowBe4-S%C3%A3o-Paulo-Location-EI_IE969384.0,7_IL[…]M_-C1lsxoZq7Cx8IriVE8MkrzuTmnJzqego77RAWZz9sqGt_55BflwYKpQeg LinkedIn : https://www.linkedin.com/company/knowbe4/life/brazil/ KnowBe4 is seeking a Senior Information Security Analyst in Brazil to join our Security team! In this role, your primary focus will be proactive threat hunting, internal vulnerability assessment/penetration testing, and building custom security automations to ensure enterprise data and infrastructure remain safe As our infrastructure evolves, you will play a critical role in bridging an internal coverage gap in threat hunting and penetration testing, solving root-cause security challenges, and collaborating with and mentoring global SOC team members across the US, UK, and Brazil.

Responsibilities: Threat Hunting & Penetration Testing: Conduct proactive threat hunting across cloud and hybrid environments, identify log coverage gaps, and perform internal vulnerability assessments and penetration testing to recommend system hardening and patching. Security Automation & Tooling: Build internal security tools and automated testing workflows using Python or Bash to parse complex logs, streamline forensic data collection, and integrate security APIs.

Cloud Security & Incident Response: Conduct security reviews and audits of AWS cloud environments, act as lead investigator for complex security incidents, and optimize ElasticSearch SIEM alerts to minimize false positives. Strategic Security Operations: Move beyond routine alert triage to solve root-cause security problems, improving overall infrastructure resilience and security posture. SOC Leadership & Mentorship: Serve as a subject matter expert for junior and mid-level analysts, developing training materials, leading tabletop exercises, and providing technical guidance to elevate overall team readiness.