Summary
Overview
Work History
Education
Skills
Timeline
Generic

Sean Angelil

Oviedo,FL

Summary

Dedicated systems administrator with expertise in Windows Server, Active Directory, and virtualization. Known for resolving complex issues and delivering user support across diverse environments, ensuring seamless operations and high system availability.

Overview

3
3
years of professional experience

Work History

Active Directory Administrator

Self Hosted Infrastructure
, Florida
06.2024 - Current
  • Installed and configured Windows Server as a Domain Controller.
  • Deployed Active Directory Domain Services (AD DS).
  • Developed and managed user accounts and security groups to enhance access control.
  • Connected Windows clients to the corporate domain for centralized management.
  • Configured Group Policy Objects (GPO) to enforce security settings across the domain.
  • Enforced password policies and system restrictions.
  • Mapped network drives via GPO.
  • Resolved domain login, DNS, and permission issues to ensure seamless user access.

Independent Systems Administrator

Self-Hosted Infrastructure
, FL
04.2023 - Current

Virtualization

  • Administer a Proxmox Type-1 hypervisor hosting multiple Linux virtual machines and containers.
  • Allocate CPU, memory and storage resources while managing VM lifecycle (deployment, migration, backup, recovery).

Administered multiple headless Linux servers, ensuring reliable service delivery.

  • Deploy and maintain multiple headless Linux servers providing network and application services.
  • Perform routine system updates, patching, service configurations, and uptime monitoring.
  • Analyze logs and troubleshoot service failures and shortcomings.

Networking

  • Configure internal networking, NAT, port forwarding, and firewall rules.
  • Implement secure remote access via VPN, VPS, and reverse proxy.
  • Troubleshoot connectivity issues across LAN and WAN environments.
  • Diagnose DNS and routing problems affecting service availability.

User Support

  • Provide services to 20+ remote users.
  • Diagnosed and resolved user-reported access and performance issues, enhancing user experience.
  • Guide non-technical users through remote troubleshooting.

Storage / NAS

  • Implement network storage via NFS.
  • Configure mounts and resolve UIG/GID permission conflicts.
  • Maintain media storage and ensure data accessibility across systems and platforms.

Operations / Reliability

  • Perform service migrations and configuration changes with minimal downtime.
  • Monitor service performance and respond to outages.
  • Maintained service availability and quality, supporting consistent operations for remote users.

Team Member / Trainer

Foxtail Coffee Company
Winter Park, Florida
06.2023 - 01.2025
  • Trained new employees on procedures and workflows, ensuring smooth onboarding.
  • Resolved customer service issues in fast-paced environment, enhancing satisfaction.
  • Handled conflict resolution and customer communication, maintaining positive relationships.
  • Handled cash and transactions with accuracy and accountability.
  • Maintained reliability and punctuality in a team operations environment.

Education

Bachelor of Science - Information Technology

University of Central Florida
Orlando, Florida
12-2026

Skills

Operating Systems

  • Windows 10/11
  • Windows Server (Active Directory)
  • Linux (Debian/Ubuntu/Arch)

Systems Administration

  • User account management
  • Group Policy Objects
  • Service configuration & troubleshooting
  • Remote administration (SSH, VPN)

Networking

  • TCP/IP
  • DHCP, DNS, NAT
  • Firewall configuration
  • VLAN

Virtualization

  • Proxmox VE
  • Virtual Machines & LXC containers

Programming / Scripting

  • Bash
  • Python
  • Java

Timeline

Active Directory Administrator

Self Hosted Infrastructure
06.2024 - Current

Team Member / Trainer

Foxtail Coffee Company
06.2023 - 01.2025

Independent Systems Administrator

Self-Hosted Infrastructure
04.2023 - Current

Bachelor of Science - Information Technology

University of Central Florida
Sean Angelil