My client, a global leader in Application Delivery Controllers and Load Balancing, is hiring a System Engineer (Pre-Sales) in Spain. Responsibilities Deliver technical demos, presentations, and solution designs Provide technical & sales support for customers and channel partners Lead POCs, support RFPs, draft technical solutions, and assess competitors Configure solutions to customer requirements and design network architectures Create and deliver training for internal teams, partners, and key customers Provide remote/on-site troubleshooting and technical support Requirements 4+ years pre-sales experience Strong L2/L3 knowledge (OSPF/BGP) Expertise in L4–7 protocols (TCP, UDP, HTTP, DNS, SSL/TLS) Experience in Virtualisation, Cloud-Native, Application Acceleration, DDoS mitigation, IPv4/IPv6, Network & Application Security Background in ADC, enterprise applications, or network security Ability to work independently and as part of a team Willing to travel across Spain and sometimes Europe Desirable Knowledge of competitive L4–7 solutions Understanding of ISP/mobile provider tech (CGNAT, GTP Firewall, DDoS Clean Pipe) Scripting in Shell/TCL + Linux/Unix experience If interested, please apply with your CV