İbrahim Çağrı Arusan

• Network Administration

Creating and managing Vlans, making necessary configuration on switches, access points and controllers, implementing 802.1x on devices, keeping devices up to date and performing necessary upgrades and changes.

• Firewall Administration

Creating and managing necessary security policies, creating new interfaces and tunnels, monitoring connections and deployment of new devices. Managing both internal and external firewalls.

• Virtualization Administration

Creating virtual servers and maintain/manage them. Taking necessary security measurements.

• Backup Administration

Creation of server backup policies, maintaining them and protecting backups against unauthorized modification. Testing disaster recovery scenarios, and restore operations.

• DLP Administration

Helping users with DLP usage and creating users and policies according to needs of company.

• O365 Administration

Managing O365 licenses of existing and newly created users, assign and purchasing licenses. Archiving mailboxes, creating distribution groups, activating MFA on users.

• E-mail Security Administration

Managing email security product by whitelisting, blacklisting, adding domain and addresses. Checking any false positive incidents and creating new policies.

• Active Directory Administration

Creating users, managing permissions, creating folders and groups.

• DNS,DHCP Administration

Managing forward and reverse zones, creating zones, creating and managing scopes

• Printer and Print Server Management

Deploying and maintaining printers and related print servers.

• 802.1x Administration

Creating policies, managing users and devices for authentication deploying necessary profiles.

• Cybersecurity

Following recent advices and guides for hardening OS, Switches, User PC's, deploying necessary GPO's, taking precautions to avoid cyber attacks.

Managing SIEM system and contacting with supplier to implement new policies, actively monitoring system for incidents.

Managing and deploying XDR to clients, creating policies and rules.

Managing WAF for web applications, creating and deploying policies

Implementing MFA for VPN and RDP connections.

Patch and Vulnerability management.

PAM deployment and management.

• Supplier Relations

Maintaining contact with suppliers, deciding equipment and software to buy, making maintenance agreements, creating technical specificaiton documents about products.

• Server Administration

Backups and Replication, Virtualization (Hyper-V, Vmware), Active Directory Deployment and Administration, Logging, DHCP Administration, DNS Administration, File Servers, WSUS, Monitoring System's Health and Suggesting Appropriate Changes to Management, Administering Antivirus Server

• Project Development for Municipality in IT Field

• Supervising and Maintaining Systems

• Network Administration

Firewall Administration: Dell Sonicwall ( Application Permissions, Connectivity Permissions, VPNs)

Supervising and deployment of physical network infrastructure, Logging, Point to Point and MPLS VPN configuration

• MIS and EDS Administration

Deployment and administration of management information system and electronically document system. Helping users about these software and solving problems of them, contacting and suggesting software companies about improvements and modules that needs to be added. Testing newly deployed modules before deploying themm to general use

• User Technical Support

Helping users about and hardware and software problems, training user about newly implemented technologies, making and suggesting needed hardware changes on faulty devices, deploying new devices.

• Cybersecurity

Taking necessary actions on cyber security field, consulting technical aspect of GDPR to municipality