Senior Information Security Analyst (remote in Brazil)

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.

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: KnowBe4 is seeking a

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.

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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. •

Build internal security tools and automated testing workflows using Python or Bash to parse complex logs, streamline forensic data collection, and integrate security APIs. •

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. •

Move beyond routine alert triage to solve root-cause security problems, improving overall infrastructure resilience and security posture. •

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.

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Proven track record in active threat hunting, incident investigation, and building or maturing SOC operational components rather than solely triaging alerts •

Strong hands-on proficiency in Python or Bash for log parsing, forensic data collection, and custom security tool development •

Hands-on experience securing cloud infrastructure (AWS as the primary focus) and navigating Linux command-line interfaces •

In-depth knowledge and practical experience configuring and customizing ElasticSearch SIEM for log collection and alert tuning •

Fluency in technical English (written and spoken) to collaborate smoothly across global teams •

Personable, open communication style with authentic engagement, willingness to share personal context, and a collaborative spirit

We offer company-wide bonuses based on monthly sales targets, employee referral bonuses, adoption assistance, tuition reimbursement, certification reimbursement, and certification completion bonuses - all in a modern, high-tech, and fun work environment. For more details about our benefits in each office location, please visit . Note: An applicant assessment and background check may be part of your hiring procedure. Individuals seeking employment at KnowBe4 are considered without prejudice to race, color, religion, national origin, age, sex, marital status, ancestry, physical or mental disability, veteran status, gender identity, sexual orientation or any other characteristic protected under applicable federal, state, or local law. If you require reasonable accommodation in completing this application, interviewing, completing any pre-employment testing, or otherwise participating in the employee selection process, please visit www.knowbe4.com/careers/request-accommodation.

Originally posted on Himalayas