Open To Work
Hyung Suk Ryu
M365 Systems Administrator
Sandy,UT
Work Preference
Summary
I am a Microsoft 365 Systems Administrator operating in a Department of Defense–contracted GCC High environment, specializing in cloud security, compliance, and endpoint management. My work focuses on designing and implementing secure, scalable Microsoft 365 and Azure infrastructures that align with CMMC Level 1/2 and NIST 800-171 frameworks.
I have hands-on experience architecting and deploying Microsoft Defender for Endpoint (EDR) and Microsoft Purview to safeguard sensitive data, automate threat detection, and maintain compliance. My role includes building sensitivity labeling frameworks, configuring Data Loss Prevention (DLP) policies, and developing Role-Based Access Control (RBAC) structures to strengthen identity governance and reduce risk across the enterprise.
Within Intune and Entra, I plan, configure, and enforce policies across Windows and macOS endpoints, ensuring full device compliance and visibility. I’ve automated application deployment and policy rollout via Azure, reducing manual effort and improving operational efficiency. I also manage Mobile Device Management (MDM) to secure, monitor, and maintain compliance across all corporate and field devices.
In addition to security and cloud management, I oversee IT asset procurement and lifecycle management—including sourcing, quoting, and coordinating bulk equipment orders (e.g., 20+ laptops valued at over $20K). I work closely with vendors and finance to maintain budget accountability, ensure timely delivery, and track assets within Intune and Entra systems.
I’m continuously advancing toward a Cloud Security Engineer career path by expanding my skills in Python, PowerShell, Terraform, and advanced Defender/Purview automation. My goal is to design and manage secure, automated, and compliant cloud environments that enable organizations to meet mission-critical security and governance objectives.
Overview
15
15
years of professional experience
7
7
Certificate
Work History
M365 Systems Administrator
Red Cat Holdings
05.2025 - Current
- Architected, planned, and implemented Microsoft Defender for Endpoint (EDR) to establish advanced threat
detection, automated investigation, and incident response across enterprise endpoints.
- Architected, planned, and implemented Microsoft Purview, developing sensitivity labeling, data classification, and
Data Loss Prevention (DLP) policies to protect regulated and sensitive information.
- Conducted incident detection, investigation, and remediation through Huntress, responding to active threats and
mitigating security risks in real time.
- Designed and deployed Role-Based Access Control (RBAC) and Defender security policies to enhance
organizational security posture.
- Planned, configured, and enforced Intune MDM and compliance policies for Windows and macOS, ensuring
endpoint compliance with organizational and government standards.
- Automated application deployment and policy rollout through Azure, improving efficiency and reducing
administrative overhead.
- Partnered with compliance and leadership teams to align security controls with CMMC Level 1 & 2 and NIST
800-171 requirements, embedding Zero Trust principles across the environment.
HELP DESK TIER2 /JUNIOR SYSTEM ADMINISTRATOR
Equinox IT Services
05.2024 - Current
- Managed the replication of VMs through Hyper-V in the servers.
- Managed IP address and website whitelisting/blocking through Watchguard firewall.
- Managed user access rights to maintain information security while ensuring accessibility for authorized personnel through AD, GPO, Entra and Intune.
- Simplified troubleshooting processes by creating detailed documentation for system configurations, procedures, and best practices using IT Glue.
- Collaborated with cybersecurity team to develop and implement comprehensive disaster recovery plans, insuring minimal data loss during critical incidents.
- Installed important security and functionality patches to maintain optimal protections against intrusion and system reliability.
- Utilized Intune and Entra to enforce MDM and MFA policy.
- Managed email whitelisting/blocking through Barracuda Email Protection.
HELP DESK SPECIALIST TIER 1
Equinox IT Services
05.2023 - 05.2024
- Provided tier1 help desk support to end users, resolving software and hardware issues promptly.
- Responded to inquiries by phone and email requests.
- Logged activities in tracking system to maintain accurate, timely records.
- Conducted onboarding and offboarding processes using Active Directory for seamless transitions.
- Set up new computers for incoming employees, ensuring a smooth start to their work.
- Managed an average of 100 phone calls per week, showcasing strong problem-solving skills.
IT Technician
Peak Systems
01.2023 - 05.2023
- Established, repaired and optimized networks by installing wiring, cabling and devices.
- Configured systems according to prescribed software and hardware frameworks.
- Configured hardware, devices and software to set up work stations for employees.
- Patched software and installed new versions to eliminate security problems and protect data.
FREELANCE IT CONSULTANT
ArtnCompany
09.2016 - 07.2022
- Delivered outstanding service to clients to maintain and extend relationship for future business opportunities.
- Supported clients with business analysis, documentation and data modeling.
- Authored detailed work plans to meet business priorities and deadlines.
- Provided Tier 2 IT support to non-technical internal users through desk side support services.
- Assisted customers in identifying issues and explained solutions to restore service and functionality.
IT Support Specialist
ArtnCompany
04.2011 - 06.2015
- Created help desk tickets, troubleshot and resolved desktop issues.
- Determined hardware and network system issues using proactive troubleshooting techniques.
- Responded to faults in both LAN and WAN networks to rapidly restore connectivity and prevent unnecessary downtimes.
- Implemented multi-factor authentication methods to enhance user access controls, reducing unauthorized system access incidents.
Education
Associate of Science - Computer Science
University of Utah
Salt Lake City, UTSalt Lake Community College
Salt Lake City, UTSkills
- Microsoft Intune
- Microsoft Entra
- CMMC
- Privileged access management
- Microsoft Defender
- Microsoft Purview
- Incident Response
- Zero Trust Architecture
- Role Based Access Control
- Cloud Security Architecture
Certification
CompTIA Network+ - April 2024
CompTIA Security+ - May 2024
CompTIA Cloud+ - October, 2025
AWS Certified Cloud Practitioner - July 20, 2025
Microsoft Certified Security, Compliance, and Identity Fundamentals - July 29, 2024
Languages
Korean
Bilingual or Proficient (C2)
English
Bilingual or Proficient (C2)
Timeline
M365 Systems Administrator
Red Cat Holdings
05.2025 - Current
HELP DESK TIER2 /JUNIOR SYSTEM ADMINISTRATOR
Equinox IT Services
05.2024 - Current
HELP DESK SPECIALIST TIER 1
Equinox IT Services
05.2023 - 05.2024
IT Technician
Peak Systems
01.2023 - 05.2023
FREELANCE IT CONSULTANT
ArtnCompany
09.2016 - 07.2022
IT Support Specialist
ArtnCompany
04.2011 - 06.2015
Associate of Science - Computer Science
University of Utah
Salt Lake Community College