Head of IT | Sr. System Administrator | Data Scientist | Cloud Administrator

Kadir SARIASLAN

Experienced IT professional with over eight years of expertise in managing and supporting complex IT infrastructures. My skills span a wide range of technologies, such as VMware, Citrix, Microsoft 365, and various operating systems (Windows, Mac, Linux). I excel in digital transformation, system administration, and IT security, and I am passionate about leveraging my technical skills to drive business innovation and improve IT operations.

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Technical Skills

Networking Technologies :

LAN/WLAN/WAN Architecture, TCP/IP, IPsec, SSL, VPN, VLAN, VTP, NAT, STP, SSH

Application Servers :

Domain Controller, Windows Active Directory Services, LDAP, DNS, DHCP, FTP, sFTP, Microsoft 365, Microsoft Sharepoint, Microsoft IIS, GPOs, SCCM, Access Control

Microsoft Technologies :

Microsoft 365, Exchange Online, SharePoint Online, Teams, OneDrive, Copilot, Intune, Azure

VMware :

ESXi 7-8, vCenter Operational Manager, vCenter Orchestor, VMware vMotion, Storage vMotion, VMware Distributed Resource Scheduler (DRS), VMware High Availability (HA), VMware Site Recovery Manager (SRM)

Citrix :

XenApp, XenDesktop, Access Gateway, Netscalar, License Server, StoreFront, App-V, Desktop-V, Profile Management

Security Compliances :

ISO 27001 Certification, Third Party Risk Management, IT Risk Management, Security Awareness Training, IT Risk Analysis

Operating Systems :

Windows Servers 2012R2/2016/2019/2022, Mac, Linux, Windows 8/10/11, FreeBSD

Backup Systems :

Veeam, Data Protection Suite, EMC Networker

Devices :

Dell VxRail (HyperConverged) Servers, Dell PowerEdge Servers with GPU, HP DL380 Gen9 Servers, Dell PowerProtect / Data Domain, Dell PowerStore and PowerVault Storages, Dell vSAN Switches, Dell PowerSwitches, HPE Aruba Networking, Fortigate Firewalls, GrandStream APs, Rujie APs

Experience

Experienced Microsoft 365 Senior Technology Specialist with a strong record in boosting productivity and streamlining operations using M365 tools and AI technologies. Expertise in digital transformation, legacy system modernization, and aligning technology with business goals for sustainable growth. Proven ability to collaborate remotely with global teams to deliver customized solutions.

• Guided clients on Microsoft Teams, SharePoint, OneDrive, Exchange Online, and Power Platform. Provided licensing insights and optimization strategies.
• Partnered with IT, development, and business units to design and deploy custom M365 solutions, enhancing operational efficiency.
• Led workshops and training sessions to cover advanced M365 features, promoting best practices and boosting user adoption.
• Assessed business processes and IT infrastructure to identify opportunities for M365 integration, recommending workflow improvements.
• Supported legacy system modernization, helping clients transition to cloud-based solutions.
• Proposed strategies for modernization, including Azure services, Dynamics 365, and AI integration.
• Guided clients through smooth transitions, fostering a culture of innovation.
• Worked with development teams to incorporate Microsoft Copilot, boosting productivity with AI-driven insights.
• Implemented AI best practices, monitored metrics, and provided support to enhance AI-driven processes.

IT Manager
City: Adana
Country: Türkiye

ESC furnishes services as an engineering company specializing in GIS, Telecom Engineering, Electrical Engineering and BIM Services in more than 10 countries throughout the world. Headquarters located in Adana and branches are located in Istanbul Turkiye and Rijswijk The Netherlands. Also have group companies in Turkiye, and The Netherlands.

• Managed entire network infrastructure including Servers, VMs, Backup Solutions, Storage, Switches, and Firewalls.
• Set up VLAN and SSL VPN to enable employee access to internal servers and resources, and established Site to Site IPsec VPN tunnels for inter-branch connectivity.
• Administered production servers and network infrastructure, including Windows Administration of Domain Controllers, Active Directory, DNS, DHCP, Migration Activities, and IIS Web Servers (HTTP/S, FTP, and SFTP)
• Supported Active Directory, Azure AD Connect, GPO, and Domain Users, ensuring appropriate permissions.
• Experienced in Exchange Online, SharePoint Online, Teams and OneDrive
• Implemented SCCM Configuration Manager for the streamlined remote management of 30+ Windows Servers & 100+ Clients, enhancing system updates and reducing patch deployment time by 40%, resulting in improved operational efficiency
• Administered Citrix core infrastructure, including web, app, SQL, and Citrix servers, maintaining Citrix Datastore and license servers.
• Responsible for administering and supporting Citrix server environment and installing Citrix on them for expansion of Citrix farms.
• Installed, configured, and managed ESXi 7/8 and vCenter Server 7/8, setting up VMware features like V-motion, HA, and DRS.
• Created and deployed Virtual Machines, configured VNetwork Standard Switch, and managed P2V and V2V migrations.
• Creating and Deploying of Virtual Machines from templates and creating snapshots with in no time, cloning of virtual machines for future deployments.
• Migrated Physical Machines to Virtual Machines (P2V) and Virtual Machines to Virtual Machines (V2V) using VMware converter and vCenter Guided Consolidation.
• Maintained Virtual Machines, implemented VMotioning, and managed Hot and Cold Migration of servers.
• Designed, installed, configured, administered, and troubleshot VMware/Citrix VDI environments.
• Hands-on experience with various Unix, Mac and Linux operating systems.
• Prepared the organization for ISO 27001 certification; developed and implemented IT security policies and procedures.
• Oversaw the performance of IT systems, conducted cost and productivity analyses, and provided strategic recommendations for enhancing IT infrastructure.
• Managed the IT budget, tracking expenditures and reporting on financial allocations to ensure optimal resource utilization.
• Supervised IT assets, performing regular audits to maintain accuracy and integrity of asset records.
• Led the IT team, driving initiatives for continuous training and professional development to enhance team skills and performance.

IT Manager
City: Istanbul
Country: Türkiye

Aksal Steel Construction has implemented projects including hotel constructions, industrial facilities, bridges, skyscrapers, factories, pipelines and now Istanbul New Airport. Company is planning to join under one domain infrastructure.

• Managed IT department operations and staff training.
• Oversaw network and system performance, including troubleshooting, security patching, and maintenance.
• Analyzed, configured and troubleshoot the LAN/WLAN/WAN, IP Routing, and Multi-Layer Switching.
• Handled remote infrastructure management for multiple office locations.
• Administered Windows Server 2012R2/2016 Active Directory environments, including user profiles, groups, organizational units, GPOs, and system policies.
• Implemented and managed SCCM infrastructure, including environment setup.
• Resolved DNS, DHCP, and IP conflict issues.
• Configured firewall logging, DMZ, and related security policies, and conducted monitoring.

IT Specialist / IT Manager
City: Gaziantep
Country: Türkiye

I started as IT Specialist, then since January’17, promoted to IT Manager at Ugurlu Hotels. Ugurlu Hotels have 12 properties within Gaziantep. They are ranging from 2 starts to 4 stars, 1 thermal resort 6 city hotels and 5 boutique mansions.

• Troubleshot network issues related to TCP/IP addressing, DHCP, and DNS.
• Configured RAID arrays and SAN storage on HP Servers and Blades.
• Deployed and managed Hyper-V and Windows servers.
• Implemented and troubleshot Hyper-V virtual machines, including P2V conversions, user permissions, and high availability with Failover Clustering. Managed Hyper-V hosts using VMM and performed rapid VM deployments.
• Troubleshot SCCM client issues, installed clients, and generated compliance reports using SQL queries and SSRS
• Handled Active Directory tasks including DFS, WDS, WSUS, replication, and certificate services. Addressed common issues such as client authentication, application failures, and LDAP query problems.
• Configured SAN storage and assigned LUNs for servers in data center.
• Managed Office 365 user accounts, mailbox migrations, cutover IMAP migrations, Single Sign-On, DirSync, AD FS, and PowerShell scripting.

Education

Erasmus+ Student Exchange
AGH University of Science And Technology [ 10/2015 – 06/2016 ]
City: Krakow
Country: Poland
Website: www.agh.edu.pl/en/

Final Year Project – A simple Hexabot Robot| This project aimed to develop and build a small robot that mimics the basic locomotion behavior of hexapod insects like cockroaches and robots. Used technologies are Arduino and C/C++

Certificates

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