IT System Administrator

Job description

Who are we? Howden is a global insurance group with employee ownership at its heart. Together, we have pushed the boundaries of insurance. We are united by a shared passion and no-limits mindset, and our strength lies in our ability to collaborate as a powerful international team comprised of 24,000 employees spanning over 56 countries. People join Howden for many different reasons, but they stay for the same one: our culture. It’s what sets us apart, and the reason our employees have been turning down headhunters for years. Whatever your priorities – work / life balance, career progression, sustainability, volunteering – you’ll find like-minded people driving change at Howden. Howden Hellas, a leading multinational insurance and reinsurance broker in Greece , offers you the opportunity to join a dynamic team of experts in risk management, insurance solutions, and client-focused advisory services. As part of the global Howden Group, we combine local expertise with international reach, delivering tailored solutions across industries. We are looking for an experienced System Administrator to join our team! 📍 Location: Athens 💼 Full-time | Permanent About the Role We are looking for an Entry-Mid Level System Administrator with a strong focus on networking and telephony infrastructure to join our IT team. This role is responsible for maintaining and supporting our LAN/WAN environment, VoIP/telephony systems, and core network hardware, while also assisting with general server and systems administration tasks. This is a great opportunity for someone with foundational networking knowledge who wants to build hands-on experience with enterprise infrastructure and grow into a full systems/network engineering role. Key Responsibilities: Networking Install, configure, and maintain switches, routers, firewalls, and wireless access points. Monitor network performance and availability; troubleshoot connectivity issues across LAN, WAN, and VPN links. Support VLAN configuration, routing, and basic firewall rule management. Maintain network documentation, including diagrams, IP address allocation, and change records. Assist with network security tasks such as access control lists, patching of system, network devices, and monitoring for anomalies. Telephony Administer and support VoIP telephony systems (e.g., Cisco, Avaya, Microsoft Teams Phone, 3CX, or similar platforms). Manage handset provisioning, extensions, call routing, voicemail, and hunt groups. Troubleshoot call quality issues, dropped calls, and integration issues between telephony and network infrastructure (QoS, SIP trunking). Coordinate with telecom carriers and vendors for line provisioning, porting, and outage resolution. General System Administration Assist with day-to-day administration of Windows/Linux servers, Active Directory, and core infrastructure services (DNS, DHCP). Support backup, patching, and monitoring routines across servers and network devices. Provide technical support for network- and telephony-related helpdesk tickets. Participate in infrastructure projects such as office moves, network upgrades, and telephony system migrations. Maintain accurate asset inventory for network and telephony equipment. Helpdesk & End-User Support Provide technical support for hardware, software, network, and account issues, Own and resolve tickets end-to-end via the IT service management (ITSM) platform, meeting SLA targets. What We’re Looking For: 1–3 years of experience in a system administration, network support, or telecom support role. Solid understanding of networking fundamentals: TCP/IP, VLANs, routing, switching, DNS, DHCP, VPN. Exposure to VoIP/telephony systems and concepts (SIP, QoS, call routing). Basic experience with firewalls and network security concepts. Familiarity with Windows Server and/or Linux server administration. Comfortable using network monitoring and diagnostic tools (e.g., Wireshark, PRTG, SolarWinds). Strong troubleshooting skills and attention to detail. Good communication skills for coordinating with vendors, carriers, and end users. PREFERRED QUALIFICATIONS •Hands-on experience with a specific VoIP platform (Cisco Unified Communications, Avaya, 3CX, Microsoft Teams Phone, RingCentral, etc.). •Exposure to cloud/hybrid networking concepts (SD-WAN, site-to-site VPN, Azure/AWS networking). •Experience with structured cabling and basic hardware installation for network/telephony equipment. •Associate's or Bachelor's degree in Information Technology, •Telecommunications, or a related field, or equivalent practical experience. What We Offer 💰 Competitive salary and performance-based incentives 📚 Ongoing training & career development 🩺 Private medical insurance 💻 Flexible working model with international exposure 🔧Access to leading tools, market platforms, and global expertise 🌍Opportunity to work on high-value, multinational accounts 🚀Supportive, entrepreneurial culture focused on growth, development, and collaboration 🔻Ready to Shape the Future of Risk? If you're passionate about delivering innovative solutions and ready to grow your career— come join a team that leads from the front ! Be part of a company that doesn’t follow the market — we help shape it! What do we offer in return? A career that you define. At Howden, we value diversity – there is no one Howden type. Instead, we’re looking for individuals who share the same values as us: Our successes have all come from someone brave enough to try something new We support each other in the small everyday moments and the bigger challenges We are determined to make a positive difference at work and beyond Reasonable adjustments We're committed to providing reasonable accommodations at Howden to ensure that our positions align well with your needs. Besides the usual adjustments such as software, IT, and office setups, we can also accommodate other changes such as flexible hours* or hybrid working*. If you're excited by this role but have some doubts about whether it’s the right fit for you, send us your application – if your profile fits the role’s criteria, we will be in touch to assist in helping to get you set up with any reasonable adjustments you may require. *Not all positions can accommodate changes to working hours or locations. Reach out to your Recruitment Partner if you want to know more. Permanent