We're Hiring: Juniper Network Expert / Senior Network EngineerEnterprise & Service Provider Environment | Global Projects | Multi-Vendor NetworksLocation: Greater Madrid Metropolitan Area, SpainWe are looking for a highly skilled and experienced Juniper Network Expert to join a fast-paced enterprise/service provider environment. If you have deep hands-on expertise with Juniper technologies, strong troubleshooting abilities, and experience managing complex large-scale networks, this opportunity could be a great fit.Position: Juniper Network Expert / Senior Network EngineerExperience: 5–10+ YearsEmployment Type: Contract / Freelance / Long-Term OpportunityWork Environment: Enterprise / Telecom / Service ProviderShift: May include 24/7 or rotational support depending on project requirements️ Key Responsibilities:Design, configure, and support enterprise & service provider network infrastructureManage Juniper MX, EX, and SRX platformsConfigure and troubleshoot BGP, OSPF, IS-IS, MPLS, VPNs, and WAN connectivityImplement Layer 2 / Layer 3 networking including VLANs, STP, and routing integrationConfigure firewall policies, NAT rules, and security controls on Juniper SRXMonitor network performance, availability, and capacityTroubleshoot complex network incidents, outages, and performance issuesPerform network upgrades, patching, and configuration managementCollaborate with IT, security, cloud, and infrastructure teamsMaintain technical documentation, diagrams, and operational proceduresRequired Skills:Strong expertise in Juniper Junos OSHands-on experience with MX, EX, and SRX seriesStrong knowledge of BGP, OSPF, IS-IS, MPLSExperience with IPSec, SSL VPN, GRE, and WAN technologiesDeep understanding of network security & firewall administrationExperience with enterprise network monitoring and troubleshooting toolsAbility to work under pressure in critical production environmentsPreferred Certifications:JNCIA-JunosJNCIS (Enterprise / Security)JNCIP (Enterprise / Service Provider)CCNA / CCNP (Cisco knowledge is a plus)Nice to Have:Network Automation (Python / Ansible)SDN & Cloud Networking (AWS / Azure)Carrier-grade MPLS network experienceMulti-vendor environment exposure (Cisco, Palo Alto, Fortinet)