Senior Network Engineer - ΑΘΗΝΑ - ΑΤΤΙΚΗ

Are you an experienced Senior Network Engineer ready to take full ownership of high-impact enterprise network infrastructure? Do you thrive on designing scalable architectures, mastering complex routing protocols, and automating modern data center environments? If you're looking for a dynamic role where your deep technical expertise directly drives project delivery and high-availability operations, this opportunity is built for you! The Senior Network Engineer position is full time and permanent, based in Athens. Responsibilities As a Senior Network Engineer, you will shape and elevate high-performance network environments through the following key duties: Design, implement, and maintain resilient Layer 2/Layer 3 large-scale enterprise and data center network infrastructures. Manage and optimize advanced routing protocols (BGP, OSPF, IS-IS) in an ISP environment, applying network policy templating and operational best practices. Enforce network security best practices, including robust ACLs, network segmentation, secure routing policies, and VPN technologies (IPsec, GRE). Implement and manage WAN/SD-WAN solutions across distributed environments while supporting seamless hybrid cloud connectivity with platforms like AWS and Azure. Drive operational efficiency by developing network automation solutions using Python, Ansible, REST APIs, and infrastructure-as-code tools. Conduct deep packet analysis, perform diagnostic troubleshooting, and track performance using telemetry, NetFlow, SNMP, and modern observability platforms. Participate in high-availability strategy planning, capacity management, cross-functional project delivery, and occasional presales engagements.