I am a Network Engineer with a strong foundation in network infrastructures, data center operations, and network security. Currently, I apply my expertise to the management of complex data center and enterprise network architectures at Hepsiburada, building upon the solid operations and team leadership experience I gained in mission-critical environments like IGA and D-Smart.
Throughout my career, I have developed comprehensive knowledge of network and security hardware, including routers, switches, and firewalls. I am highly proficient in navigating and configuring multi-vendor ecosystems, with extensive hands-on experience across Cisco, Huawei, Juniper, and Fortinet platforms.
Backed by my CCNA and ITIL 4 Foundation certifications, I actively use my technical background to deliver end-to-end architectural solutions. My professional focus lies in designing dynamic routing protocols, implementing virtualization technologies like VXLAN, building High Availability architectures, and streamlining network operations.
- 🌱 I’m currently learning Networking & Python Automation
- 🤝 I’m currently studying Management Information Systems
- 📝 I regularly write articles on haktanylmz.com.tr
- 💬 You can ask me about anything
- ⚡ Fun fact The only thing I know is that I know nothing.
- Network Engineer | 02.2026 - Present
- Performing end-to-end installation, configuration, and daily operations of enterprise and data center network infrastructures (LAN, WAN, Wireless Networks).
- Performing Layer 2 and Layer 3 root cause analysis for complex performance and access issues in the network infrastructure to quickly resolve outages.
- Configuring dynamic routing protocols and managing TCP/IP, STP, MLAG, and Link Aggregation technologies in compliance with standards.
- Operating complex data center network architectures using virtualization technologies like VXLAN and ensuring the system runs uninterrupted with High Availability.
- Implementing corporate network security policies; configuring, monitoring, and updating security infrastructure components such as Firewall, IPS, DDoS protection, Proxy, and IPsec/SSL VPN.
- Actively supporting automation processes with scripts prepared in Python and similar languages to accelerate and standardize network operations.
- Participating in new network architecture designs and successfully implementing planned infrastructure changes while minimizing operational risks.
- NOC Specialist | 05.2025 - 01.2026
- Providing live support during the installation and troubleshooting phases of network devices such as x-ray, camera, printer, computer, and access points by making relevant configurations on 2500 edge switches.
- Monitoring network devices such as servers, routers, switches, and access points located in the data center and campuses via monitoring programs, intervening, and escalating when necessary.
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NOC Team Leader | 09.2023 - 05.2025
- Coordinated the tasks of NOC team members, tracked progress, and carried out the planning and reporting of tasks assigned by the unit manager.
- Planning, managing, and developing monitoring tools.
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NOC Specialist | 03.2022 - 09.2023
- Providing 24/7 L1, L2, and, when necessary, L3 support to network devices (Router, Switch, Server, etc.) running at VAE/xDSL pop points.
- Ensuring service continuity by providing L1, L2, and, when necessary, L3 support to Internet, Data, and MPLS lines owned by D-Smart or in use by customers.
- Cabling, installation, inventory tracking, fault detection, and providing L1, L2, and, when necessary, L3 support for network devices and servers.
- Monitoring D-Smart traffic, devices, and corporate customers' devices (NNMI, NA, SM, PRTG, MRTG, SMOKEPING, SITESCOPE, IPAM, IVR, etc.).
- Planning and process tracking of works to be done with Internet Service Providers (ISP) and suppliers.
- Detecting alarms generated by devices in the data center and notifying responsible persons.
- Performing tests, controls, and reporting in accordance with technical or legal requirements.
- Analyzing VOIP problems, generating solutions, and escalating to upper units when necessary.
- Software Intern | Aliniyor.com (05.2021 - 06.2021)
- Worked on software development and graduation projects.
- IT Intern | Hürriyet (11.2018 - 06.2019)
- Provided 24/7 on-site IT support, system formatting, and basic network troubleshooting.
- Software Intern | Idesoft Yazılım & Donanım (09.2018 - 11.2018)
- Managed B2B product entries, QA testing, and internal IT support.
| Category | Technologies |
|---|---|
| Switches | Cisco, Huawei, Juniper, Dlink, Fortinet, Mellanox, Tplink |
| Routers | Cisco, Huawei, Juniper, Ericsson |
| Firewalls | Fortigate, Sophos, Checkpoint, Palo Alto |
| Monitoring Tools | Smokeping, Cacti, Prtg, NNMi, Operations Bridge Manager, Network Automation, rConfig, LibreNMS, Zabbix, Graphana |
| Ticketing Systems | ITSM, Jira |
- Management Information Systems - Anadolu University (2021 - Present)
- Computer Programming - Istanbul Topkapi University (2019 - 2021)
- Web Design - Borsa Istanbul Basaksehir Vocational and Technical Anatolian High School (2015 - 2019)
- CCNA (02.2026 - 02.2029)
- ITIL® 4 Foundation Certificate in IT Service Management (Credential ID: GR671845622HY)
- Fortinet Certified Associate in Cybersecurity
- Fortinet Certified Fundamentals in Cybersecurity
- Virtual Operating Systems, Server Installation, and System Backup with VMware