Juniper Network Expert / Senior Network Engineer
We’re Hiring: Juniper Network Expert / Senior Network Engineer in a fast‑paced enterprise/service provider environment.
Location: Greater Madrid Metropolitan Area, Spain
Experience: 5–10+ Years
Employment Type: Contract / Freelance / Long‑Term Opportunity
Work Environment: Enterprise / Telecom / Service Provider
Shift: May include 24/7 or rotational support depending on project requirements
Key Responsibilities
- Design, configure, and support enterprise & service provider network infrastructure
- Manage Juniper MX, EX, and SRX platforms
- Configure and troubleshoot BGP, OSPF, IS‑IS, MPLS, VPNs, and WAN connectivity
- Implement Layer 2 / Layer 3 networking including VLANs, STP, and routing integration
- Configure firewall policies, NAT rules, and security controls on Juniper SRX
- Monitor network performance, availability, and capacity
- Troubleshoot complex network incidents, outages, and performance issues
- Perform network upgrades, patching, and configuration management
- Collaborate with IT, security, cloud, and infrastructure teams
- Maintain technical documentation, diagrams, and operational procedures
Required Skills
- Strong expertise in Juniper Junos OS
- Hands‑on experience with MX, EX, and SRX series
- Strong knowledge of BGP, OSPF, IS‑IS, MPLS
- Experience with IPSec, SSL VPN, GRE, and WAN technologies
- Deep understanding of network security & firewall administration
- Experience with enterprise network monitoring and troubleshooting tools
- Ability to work under pressure in critical production environments
Preferred Certifications
- JNCIA-Junos
- JNCIS (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 experience
- Multi‑vendor environment exposure (Cisco, Palo Alto, Fortinet)
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