sameer
System Administrator
About
Security-focused System Administrator with hands-on experience in Microsoft Defender, Splunk, IAM, cloud security, incident investigation, alert triage, and endpoint protection. Experienced in monitoring security events, analyzing indicators of compromise (IOCs), investigating suspicious activities, and supporting incident response processes. Passionate about Security Operations Center (SOC), threat detection, SIEM monitoring, and cloud security.
Skills & Expertise (47)
Work Experience
System Administrator
TerraPay
Mar 2025 - Present
Investigated and triaged 30+ security alerts weekly using Microsoft Defender and endpoint telemetry. Performed security validation and configuration reviews for enterprise systems including IAM policies, endpoint compliance, access controls, and cloud resources. Worked with AWS services including IAM, EC2, VPC, Security Groups, and access governance following least-privilege principles. Managed onboarding/offboarding and access reviews for 500+ Microsoft 365 users. Supported incident response activities including alert validation, IOC analysis, containment support, root cause investigation, and incident documentation. Assisted in implementing security best practices for Windows/Linux environments including patch validation, hardening, and policy enforcement. Collaborated with internal teams to troubleshoot security-related issues, review risky configurations, and improve operational security posture. Worked with enterprise security tools including Microsoft Defender, Splunk, Trend Micro, and Proofpoint for monitoring, endpoint security, and alert investigation.
L1 Associate
Lenovo
Apr 2024 - Mar 2025
Diagnosed and resolved technical incidents using structured troubleshooting methodologies. Supported server and virtualization environments leveraging MCSA and VMware expertise. Delivered high-quality technical support while maintaining strong client communication.
Education
Bachelor of Science in Computer Science - Gulbarga University
2021 - 2023 · Afghanistan
PCMB - Morarji Desai Residential science PU College
2018 - 2020 · Afghanistan
Certifications
No certifications added yet
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Availability Details
Relocation
Open to Relocation
Skills (47)
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