Stephani Guimaraes Lima

SOC Analyst II

BlueVoyant

Lead complex investigations involving malware, phishing, identity compromise, credential abuse, suspicious authentication, and malicious infrastructure across enterprise environments. Correlate telemetry with OSINT and map attacker behavior to MITRE ATT&CK.

CrowdStrike Falcon Cloud SecurityMicrosoft DefenderSentinelOneCarbon BlackMicrosoft SentinelSplunkOSINTMITRE ATT&CKMalware AnalysisEmail Phishing InvestigationIdentity CompromiseThreat IntelligenceCrowdstrikeKQLSPL

Technical Mentor Consultant

Serve as a Technical Mentor for the SANS WiCyS Security Training Scholarship Program, guiding cybersecurity professionals through technical investigations, CTF challenges, hands-on security labs, and GIAC certification preparation.

Cybersecurityincident investigationCTFSecurity LabsGIAC CertificationMentorshipTechnical CommunicationIncident ResponseGIACTechnical MentoringCybersecurity Education

SOC Analyst I

BlueVoyant

Conducted high-volume investigations across endpoint, identity, email, network, and cloud environments using CrowdStrike, Microsoft Defender, SentinelOne, Carbon Black, Microsoft Sentinel, and Splunk. Performed OSINT and indicator enrichment to establish threat context.

CrowdStrike Falcon Cloud SecurityMicrosoft DefenderSentinelOneCarbon BlackMicrosoft SentinelSplunkOSINTMITRE ATT&CKSIEM TuningFalse Positive AnalysisCrowdstrikeKQLSPLThreat IntelligenceIncident ResponseEndpoint Detection And Response

SIEM Client Support Technician

BlueVoyant

Supported Microsoft Sentinel and Splunk environments collecting security telemetry across enterprise customer networks. Troubleshot Linux-based collectors, ingestion pipelines, and telemetry issues.

Microsoft SentinelSplunkLinuxCrowdstrikeMicrosoft DefenderSentinelOneCarbon BlackTroubleshootingTelemetrySyslogCEFEndpoint SecurityRoot Cause AnalysisNetworkingArchitecture SIEM

Technical Support

Provided technical support services.

Microsoft 365Azure Active DirectoryActive DirectoryExchangeTeamsWindowsMacOSMobile DevicesCisco MerakiCisco NetworkingVPNCisco AnyConnectDNSDHCPTCP IPWiFiFirewallsSentinelOneWebroot

Consultant Agent

Geek Squad Best Buy

Provided technology consulting and support services to customers.

Technical SupportCustomer ServiceTroubleshooting

Marketing Coordinator

Coordinated marketing activities and campaigns.

MarketingCampaign ManagementCoordination