Daniel Yun

Configuration Release Engineer

Created an Ansible control node Linux server to push roles/playbook configurations to apply STIG requirements for Windows servers and workstations, application installs, and iDRAC system setups. Utilized Git, Bitbucket, Jira, and Confluence for storing scripts with version control, tracking progress on tasks, and documentation.
Configured NOC systems to accept scripted Ansible configurations that restarted specific services to significantly reduce troubleshooting time of proprietary SATCOM analyzing software.
Junior member of the Operations team implementing Terraform to provision and manage infrastructure and services for the AWS environment.
Setup infrastructure for unique prototype project. Baselined ESXI servers, configured JBOD storage, designed and implemented network configuration, and scripted security features using Bash and python.
Led a team to architect and establish a new Windows domain for one of the key divisions in the company. Tasks included Active Directory design, Group Policy management, LDAP for Linux hosts, and various systems administration management.

Implemented CMMC level 3 guidelines for IT infrastructure.
Patching critically exposed devices reported by Crowdstrike.
Responsible for imaging and hardening systems for deployment.
Improved SLA response times by 10% while enduring attrition in the IT department.
Tasked with planning, purchasing, maintaining, and refreshing hardware inventory.
Mentoring and training entry level technicians.

Managed over 1000+ endpoints over numerous clients with varying IT infrastructure environments from small businesses to large corporations.
Configured and deployed Cisco switches, SonicWall firewalls, and wireless access points as well as troubleshooting layer 1-4 network issues.
Managed administration of tenants/subscriptions for M365, Outlook, Azure AD, and Azure IaaS/SaaS/PaaS.
Created and modified Group Policy Objects for users of various security levels.
Deployed and administered DUO MFA, Egnyte, Proofpoint, Symantec, Webroot, Perch, and Huntress.
Deployed Datto and StorageCraft backup solutions for clients.
Implemented automation scripting by deciphering and modifying various PowerShell templates for ConnectWise Automate.
Executed Ransomware Disaster Recovery Plan by immediately isolating infected endpoints and implemented bare metal restores of servers from backups.
Diagnosed and resolved outage of a critical VOIP network (Avaya) for a city hall and police department preventing extensive downtime.
Provided leadership and guidance for Tier I/II Support Team as point of escalation.

Deployed nearly 800 devices (laptops/mobile/tablets) when the company transitioned to remote work due to COVID.
Resolved VPN and various login issues for users transitioning to remote work.
Upgraded approximately 200 devices from Windows 7 to 10.
Using SCCM, responsible for locating and troubleshooting devices not accepting the pushed updates.
Assisted in preparing iPads for 400 field operators and troubleshooting initial SAP login issues through AirWatch.

RHCSA 9 ID: 230-121-436	CCNA ID: CSCO13689994	Azure Administrator Assoc. ID: 991270002

Azure Security Engineer Assoc. ID: 99127002	CompTIA Security+ ID: COMP001021420173	ITIL 4 ID: GR671493902DY

Homelab: Proxmox, docker, AWS, Terraform, Ansible, Bash scripting
Current material for education: Ansible for DevOps by Jeff Geerling. Terraform: Up and Running by Yevgeniy Birkman. Various online material and courses for AWS and Python.