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LUIS ERNESTO PERAFAN CHACON

@luispch

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Cybersecurity specialist focused on SOC, incident response, and threat hunting.

Colombia

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What I'm looking for

I seek a hands-on SOC/IR role where I can lead detection engineering, threat hunting, automation, and cross-team remediation while contributing to compliance and improving incident MTTD/MTTR.

I am a bilingual Cyber Security Specialist with 4+ years operating in SOC environments, specializing in incident response, vulnerability management, and threat hunting. I hold certifications including AZ-500 and ISO/IEC 27001 Internal Auditor and have driven measurable improvements in detection and remediation.

At Emcali I optimized SIEM operations and detection engineering, building 35+ correlation rules, reducing false positives 60% and cutting MTTD by 40%, while executing forensic investigations and coordinating vulnerability remediation across critical infrastructure.

I combine hands-on EDR and cloud security experience with automation (Python, Bash, SPL) and cross-functional coordination to deliver fast containment, clear executive reporting, and compliance-ready documentation aligned to ISO 27001, NIST CSF, SOC 2, and IEC 62443.

Experience

Work history, roles, and key accomplishments

Incident Response Specialist

Emcali

Jan 2025 - Dec 2025 (11 months)

Led SIEM and incident response operations, engineering 35+ correlation rules and reducing false positives 60%, while cutting average incident resolution from 4 hours to 90 minutes and achieving 98% vulnerability remediation closure.

Splunk Microsoft Defender Incident Response EDR (CrowdStrike Nessus SIEM Rule Development

SOC Analyst

Michael Page

Mar 2022 - Dec 2024 (2 years 9 months)

Monitored multi-region Azure environments with Microsoft Sentinel, processed 300+ daily alerts with 92% triage accuracy, executed incident response for 75+ events, and automated reporting to save 15 hours/week.

Azure Sentinel Threat Hunting Python BASH Triage