Demar Parkes
New York,NY
Summary
Cybersecurity professional with practical experience investigating security-related events and supporting incident response activities across endpoint, identity, and cloud environments. Skilled in EDR-based analysis using SentinelOne and Datto EDR, identity security monitoring within Microsoft 365, and access control hardening in Active Directory and Azure AD. Familiar with alert escalation, root-cause analysis, and remediation workflows, with exposure to vulnerability management and compliance requirements including HIPAA and ITIL 4. Certified in Security+, CySA+, and PenTest+, bringing attacker-minded insight to defensive security operations.
Overview
5
5
years of professional experience
1
1
Certification
Work History
Help Desk Technician
CMIT Solutions of NYCE
New York, NY
01.2025 - Current
- Delivered Tier 2 technical and security support across hybrid Windows and macOS environments, ensuring system integrity and minimizing downtime for client networks.
- Administered and secured Active Directory and Azure AD user objects, enforcing MFA policies (Okta, Duo) and access control best practices.
- Resolved Microsoft 365 authentication, licensing, and synchronization issues within hybrid on-prem/cloud infrastructures.
- Supported endpoint protection deployment (SentinelOne, Datto EDR, Webroot) and monitored alerts for potential security incidents.
- Conducted proactive system audits, patch management, and compliance checks to reduce client exposure to vulnerabilities.
Customer Service Representative
Alliance Ground International
Jamaica, NY
12.2022 - 02.2024
- Provided technical support and security-focused incident triage for endpoint, network, and identity-related issues across multi-user environments.
- Conducted root-cause analysis on recurring endpoint and authentication issues, implementing mitigations to reduce operational and security risk.
- Assisted with deployment and configuration of secure communication systems, enforcing password hygiene and device access controls.
- Supported user onboarding and offboarding processes in alignment with security policies and compliance requirements.
- Documented incidents, investigations, and escalation details in ticketing systems to support audits, reporting, and continuous improvement.
IT Desk Support
St Mary High School
Jamaica
01.2021 - 12.2022
- Investigated and resolved 200+ technical incidents, applying structured troubleshooting and root-cause analysis to reduce repeat issues and improve system reliability (~30% improvement).
- Implemented and supported secure IT solutions that strengthened endpoint configuration, access controls, and overall infrastructure resilience.
- Collaborated with non-technical users to triage issues, enforce IT policies, and deliver timely, documented resolutions.
- Monitored and responded to endpoint and user-access issues, escalating higher-risk events in accordance with defined procedures.
Education
Bachelor of Science - Cybersecurity And Information Assurance
Western Governors University
Salt Lake City, UT03-2026
Skills
- Security Information and Event Management (SIEM) - alert monitoring, basic correlation, and triage
- Log Analysis & Event Correlation - endpoint, identity, and cloud logs
- Vulnerability Management - scan review, risk prioritization, and remediation tracking
- Endpoint Detection & Response (EDR) - alert investigation and containment support
- Incident Detection & Escalation - following runbooks and SOC workflows
- Identity & Access Security - Active Directory, Azure AD, MFA monitoring
- Threat Monitoring & Analysis - identifying suspicious behavior and indicators
- Root-Cause Analysis - timeline reconstruction and impact assessment
- Security Documentation & Reporting - clear incident notes and handoffs
Certification
- Comptia A+, Comptia Network+, Comptia Security +, Pentest+, CySA+, ITIL 4
Projects
Wazuh SIEM Implementation & Log Pipeline - Wazuh, Sysmon, Winlogbeat, Honeypot Deployment to to understands TTPs from threat actors.
Timeline
Help Desk Technician
CMIT Solutions of NYCE
01.2025 - Current
Customer Service Representative
Alliance Ground International
12.2022 - 02.2024
IT Desk Support
St Mary High School
01.2021 - 12.2022
Bachelor of Science - Cybersecurity And Information Assurance
Western Governors University