Jin-ho Y.
Server Migration Consultant
Experience
Server Migration Consultant
Planning and executing Linux server migrations with SLES Linux.
Deploying VMs in VMware 8.0.
Guiding colleagues in configuring Linux VMs in vSphere Auto Deploy.
Ensuring applications run on migrated servers.
Updating and creating operations manuals.
Reviewing and optimizing service offerings from external providers.
Used technologies**:
Logistics software.
RedHat Linux.
Ansible.
Confluence / Jira.
IT Consultant
HQ-Capital
Managing financial software.
Providing support for branches in New York, Bad Homburg, Dubai, and Singapore.
Monitoring servers and networks using Open-Systems and Meraki Dashboard.
Holding Teams Voice telephony consolidation meetings to optimize for the holding and its subsidiaries.
Active Directory administration.
VMware ESXi administration.
Dell ESX Storage v3020 monitoring and administration.
Administering MS Server 2012 and 2019.
Creating and updating operations manuals.
Monitoring with PRTG.
Used technologies**:
Meraki cloud platform.
Open-Systems network & security management.
AD / Active Directory.
MS Server 2012 & 2019.
Dell ESX Storage systems.
PRTG.
Monitoring Engineer & Technical Contact for bahn.de
Monitoring the rail ticketing system on bahn.de.
Continuously tracking, analyzing, and documenting the system.
Incident management and process adjustments.
Improving end-user communication in case of issues.
Change management: meetings, risk assessments, and approvals for operational changes.
Verifying deployment results in GitLab, Assisify & Teams.
Ticket management: tracking and communicating tickets to product owners, stakeholders, and development teams.
Responsible for web interfaces and APIs.
Error handling and dependency analysis.
Monitoring and error identification during testing and launching the new bahn.de site.
Conducting meetings and quality checks.
Leading bug meetings and team meetings.
Supporting annual emergency tests.
Used technologies**:
Jira.
Confluence.
Instana (IBM).
Graylog.
Grafana.
Splunk Enterprise.
Assisify.
GitLab.
Microservices.
Docker.
Senior Security Network Engineer
Re-certifying and testing firewall rules according to ECB guidelines.
Performing network configuration, port scans, checking weak passwords, and insecure folder/file permissions.
Advising on and implementing CyberArk security rules to improve IT security.
Stakeholder management to ensure internal and external communication.
Used technologies**:
Nmap.
NetScan.
Wireshark.
ServiceNow (SNOW).
Check Point and Cisco firewalls.
FNT-Command.
MS Access, MS SQL, Excel.
Jenkins.
Splunk.
CyberArk.
ITIL.
Product Owner & SRE Site Reliable Engineer
Agile project management to develop an MVP.
Building a financial transaction test robot with Dynatrace Synthetics.
Managing software development with Confluence and Jira.
Writing user stories.
Regular meetings and presentations for management.
Access control using CyberArk on jump servers.
Planning developer meetings on technical and compliance topics.
Supporting and monitoring the online banking platform.
Used technologies**:
Agile project management.
ITIL.
User stories, epics.
Jira, Confluence.
IIS.
Meniga.
CyberArk, Windows 2012.
MS Teams.
Support Engineer / Application Support Software Engineer
Supporting the solution provider in operating and monitoring IPTV and legacy TV services on the platform.
Troubleshooting backend infrastructure in both AWS and on-premise environments.
Monitoring the Kubernetes infrastructure.
Applying middleware patches.
Supporting legacy systems.
Deploying and diagnosing issues in the test environment.
Used technologies**:
AWS S3.
Docker.
Kubernetes.
Grafana, Kibana.
Prometheus.
Linux.
CentOS.
PagerDuty.
GitLab, ServiceNow, Jira.
Languages
Education
Fachhochschule Düsseldorf
Electrical Engineering / Microelectronics · Düsseldorf, Germany
Städtisches Kolleg und Fachschule für Technik Duisburg Nord
Electrotechnical Assistant, University of Applied Sciences Entrance Qualification · Duisburg, Germany
Certifications & licenses
Consultant for E-Mobility and Alternative Drives
Dekra
CyberArk Trustee
Certified Novell Administrator
Microsoft Certified System Engineer
Adobe Sales Professional
Citrix MetaFrame
Microsoft Certified Professional
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