Senior Network Engineer

Kolay Gelsin stands out in the cargo sector with its innovative business model and solutions. We evolve every day and move forward with excitement, curiosity and a smile.We prioritise the happiness of our colleagues and the satisfaction of our customers. Our technology-focused steps and innovative structure add value to the transport sector.If you want to be part of this dynamic team, we are waiting for your application!QUALIFICATIONS Bachelor’s degree (preferably in Computer Engineering, Electronics and Communication Engineering)Minimum of 7 years of experience in System and Network AdministrationGood command of EnglishPreferably Cisco CCNA/CCNP - Extreme Networks ECS - Checkpoint CCSA/CCSE certificates,Experienced in the installation and operation of corporate and widely used firewall devices such as Check Point, Fortigate, Juniper, SophosExperienced in Routing, LAN Switching, Firewall, WAN, SDWAN MPLS, VLAN and IPSEC VPNExperienced with TCP/IP, Routing, LAN Switching, MPLS, SD-WAN,Experienced in the installation and configuration of active devices such as Extreme,Mellanox Cisco or Juniper switches, routers, etc.Experienced in NAC solutionsKnowledgeable in the use of network monitoring tools (Solarwinds, PRTG, etc.)Preferably knowledgeable in Python Scripting / Linux operating systemResearcher, problem solving and analytical thinking skillsRESPONSIBILITIESInstallation of network devices within the company, structuring and monitoring the necessary configurations according to information security policies, standards and proceduresEnsuring the continuity of LAN/WAN/WIRELESS network managementChecking the current version and version applications of network equipment, taking the necessary actionsMaking change requests and demands according to accepted standards, fulfilling change requests according to SLA requirementsConducting research on security vulnerabilities, reporting to senior managementAccess Point, Switch, Router, Radiolink, Firewall, installation and configurationsManagement and updating of wireless infrastructureNAC management and fulfillment of requestsSupporting exploration and project studies in order to provide network support in other facilities and warehouses when necessaryTaking an active role in information security projects and making analysesCarrying out all monitoring, problem management and solution activities required for systems to operate 24/7Performing optimization and regulation work on the established networkEnsuring the installation of network devicesTaking an active role in service provider and supplier relationsEstablishing, managing, and maintaining the company's entire network infrastructure (LAN, WAN, VPN, Wi-Fi)Designing and implementing network topologies and infrastructure projects, and preparing related documentationConfiguring and managing firewalls (Fortinet, Cisco ASA, etc.)Setting up, configuring, and managing network devices such as switches, routers, and access pointsMonitoring and optimizing network traffic to enhance performance and ensure continuous connectivityWill follow the DC & DRC design, monitoring and improvement processes on existing network infrastructure topologiesExperience with Aruba Wireless LAN Controllers (WLC), Access Points, and Network Access Control (NAC) systems