Senior L3 Network Engineer

Description

Descripción del puesto / Funciones

Provide advanced (Level 3) support, troubleshooting, fault isolation, and optimization for enterprise network infrastructure.

Lead network incident resolution and perform detailed root-cause analysis for major outages.

Maintain, support, and participate in network architecture design reviews, upgrades, and security implementations.

Automate routine network tasks and enhance monitoring processes using scripting and automation tools.

Develop and maintain accurate network configurations, incident reports, and technical architecture documentation.

Participate in an on-call rotation (up to 1 week per month, running Tuesday to Tuesday, including weekends).

Collaborate with cross-functional teams to drive network projects, migrations, and infrastructure enhancements.

Requisitos mínimos

Experience: Minimum of 8 years in network engineering within enterprise or service provider environments, including hands-on experience designing, deploying, and maintaining complex network infrastructures.

Education: Bachelor’s degree in Computer Science, Telecommunications, or a related field.

Core Technical Expertise:

Deep knowledge of routing and switching protocols: TCP/IP, BGP, OSPF, EIGRP, and MPLS.

Hands-on experience with enterprise-grade networking and security equipment (Cisco, Palo Alto, Aruba, Juniper).

Strong expertise in VPN technologies, firewall configurations, and network security appliances.

Proficiency with network monitoring and management tools (SolarWinds, PRTG, Nagios, Cisco Catalyst Center / DNAC, Cisco ISE).

Requirements

• Strong analytical, problem-solving, and advanced fault-isolation capabilities.
• Excellent verbal and written communication skills with the ability to explain complex technical issues to diverse stakeholders.
• Ability to work independently with strong ownership, adapt to fast-paced environments, and handle pressure effectively.
• Requisitos valorables
• Certifications: Professional or expert-level certifications such as Cisco CCNP/CCIE, Palo Alto PCNSE, or equivalent.
• Automation & Software: Knowledge of Software-Defined Networking (SDN), NFV, and automation scripting (Python, Ansible).
• Cloud & Virtualization: Cloud networking experience (AWS, Azure, GCP) and data center virtualization (VMware, Hyper-V).
• Additional Systems: Familiarity with VoIP/Unified Communications systems and network architecture design tools.
• Idiomas
• English is a must
• Ubicación
• Barcelona