Oğulcan Özügenç👨‍💻

System Administrator @AnadoluSigorta🛡️

Istanbul, Türkiye

About

I have been passionate about technology since childhood, which led me to study Electrical and Electronics Engineering at Bahçeşehir University. After graduating, I attended several trainings and gained valuable professional experience. I have always been eager to learn and explore new technologies and systems, and I enjoy solving the challenges I encounter while experimenting with them. In my free time, I share my knowledge by blogging on my personal website. With 8 years of experience, I am currently working as a System Specialist at Anadolu Sigorta. Anadolu Sigorta is one of Turkey’s leading insurance companies, where I contribute to managing and optimizing enterprise IT systems.

Experience

  • System Engineer at Anadolu Sigorta
    Apr 2024 - Present · 2 yrs 4 mos

  • Microsoft Systems Administrator at TAV Technologies
    Mar 2023 - Mar 2024 · 1 yr 1 mo

  • Arçelik Global (1 yr 5 mos)
    • Senior Systems and Cloud Administrator
      Jul 2022 - Dec 2022 · 6 mos

    • System Technologies Specialist
      Aug 2021 - Jul 2022 · 1 yr

      Managing enterprise infrastructures including Active Directory (50K users, 20K computers, 2K servers), Azure AD, DNS, DHCP, SCCM, Intune (iOS, Android, macOS), M365, Microsoft Defender AV/EDR, Exchange, and Amazon SES. • Managed email infrastructure handling 2M+ inbound and 250K+ outbound emails daily across multiple gateways • Secured user identities with MFA and Conditional Access on Okta and Azure AD • Implemented security hardening using Picus, M365 Secure Score, and CIS benchmarks • Managed GlobalSCAPE EFT Server for secure and critical file transfers • Led IT infrastructure improvements, system hardening, and commissioning of new systems • Delivered training to operations teams on specialized technologies • Utilized Jira for project management and provided operational support

  • Eti (2 yrs 11 mos)
    • Senior System Engineer
      Feb 2021 - Aug 2021 · 7 mos

    • System Engineer
      Oct 2019 - Feb 2021 · 1 yr 5 mos

      Microsoft Windows Server and Client Operating Systems, Microsoft Exchange Server 2016 (EXO Hybrid), Microsoft System Center Configuration Manager, Microsoft Cloud Services (Azure, M365), Windows Defender, AIP, Intune

    • System Support Engineer
      Oct 2018 - Oct 2019 · 1 yr 1 mo

      Eti is one of Turkey’s largest packaged food production companies with over 7,000 employees worldwide. All endpoints connect to the Eskişehir Center via MPLS. • Managed Active Directory (2K users, 2K computers, 400 servers), including account lifecycle, GPOs, and PowerShell automation • Administered File Servers, SFTP, and load-balanced Exchange servers (accounts, email tracing, distribution/security groups, upgrades) • Provided Level 2–3 remote support via ITSM (~10–15 cases daily) and escalated unresolved issues to Microsoft Support • Monitored servers via OMS and Zabbix, resolving issues proactively • Deployed applications via SCCM, created custom installation packages, and managed Microsoft licenses • Maintained hybrid AD–Azure infrastructure, implemented Conditional Access and Intune App Protection policies • Installed and maintained physical servers, switches, and data center equipment • Created technical documentation and maintained IT asset inventory

  • Bilge Adam ()
    • Technical Support Specialist
      Mar 2018 - Apr 2018 · 2 mos

      Started working here after completing my training at Bilge Adam. • Installing, maintaining, and managing computers, projectors, and both wireless and wired network devices in branches • Providing technical support to staff and students in branches • Tracking inventory, testing, and improving existing hardware

    • System and Network Specialist
      Oct 2017 - Feb 2018 · 5 mos

      Completed an 800-hour, full-scholarship MCSE & CCNA training program. • Microsoft Windows Client & Server administration (AD, DNS, DHCP, Group Policy, WSUS) • Virtualization: Hyper-V, VMware vSphere • Microsoft Azure, Office 365, Exchange Server management • Cisco networking: LAN/WAN, VLAN, routing, switching, security • Firewalls & UTM: Sophos, pfSense, Cisco ASAv, Check Point • Storage systems: HP, QNAP, Synology, FreeNAS • PowerShell scripting and automation