Looking for a job

LUIS ERNESTO PERAFAN CHACON

@luispch

Message

Security engineer specializing in SIEM/SOAR, incident response, and cloud security operations.

Colombia

Message

What I'm looking for

I seek a hands-on security operations role focusing on SIEM/SOAR, incident response, and threat detection within collaborative teams that value proactive defense and continuous improvement.

I am a Security Engineer with 4+ years in security operations across enterprise cloud and on-premises environments, experienced in SIEM (Splunk, Microsoft Sentinel), SOAR automation, incident response, threat hunting, and vulnerability management. I hold Azure Security Engineer (AZ-500) and ISO 27001 Internal Auditor certifications and have driven measurable improvements in detection, response times, and vulnerability remediation.

At Emcali and Michael Page I developed detections aligned to MITRE ATT&CK, created SOAR playbooks using Azure Logic Apps, conducted hypothesis-driven threat hunting, and led incident response that reduced resolution time and diminished false positives. I combine technical rigor, cross-functional collaboration, and systems thinking to harden infrastructure and operationalize security at scale.

Experience

Work history, roles, and key accomplishments

Current

Security Engineer

Current

Emcali

Jan 2024 - Present (2 years 2 months)

Monitored on-premises and Azure services, developing 35+ SIEM detections and SOAR playbooks that reduced false positives 60% and manual triage 15 hours/week; coordinated response to 50+ incidents, cutting average resolution time from 4 hours to 90 minutes.

Splunk SOAR Incident Response Threat Hunting SPL

Security Operations Analyst

Michael Page

Jan 2021 - Dec 2023 (2 years 11 months)

Analyzed 300+ daily alerts across multi-region Azure environments using Sentinel and Splunk, led response for 75+ security events and improved endpoint dwell time by 55% through EDR management and early detection.

Azure Sentinel Splunk Nessus OpenVas Python BASH Vulnerability Management